Georgia Medicare Buy-In State Buy-In Agreement: A Complete Guide

::: hero

By Brevy Care Team · Last verified May 13, 2026

When a Georgia senior or disabled adult is approved for a Medicare Savings Program (MSP), something complicated and largely invisible happens behind the scenes to convert that approval into actual premium relief. The DFCS approval letter says "QMB" or "SLMB" or "QI" or "QDWI." But the approval letter is not what stops the premium from being withheld from the beneficiary's Social Security check. The approval letter is not what prevents the Medicare beneficiary from being billed by the Centers for Medicare and Medicaid Services (CMS) for the Part A or Part B premium. What actually makes the premium relief functional is a federal-state administrative mechanism called the State Buy-In Agreement, often called simply the Medicare Buy-In.

Georgia Medicare Buy-In (State Buy-In Agreement): federal-state machinery under Section 1843 of the Social Security Act and 42 CFR Part 407 that converts QMB, SLMB, QI, and QDWI approvals into direct Medicaid premium payments to CMS. Buy-In activation takes 30-60 days after DFCS approval, coordinated through MMIS and COBA data exchange. Section 1839(b) of the SSA exempts Buy-In enrollees from Part B Late Enrollment Penalty. Apply for the underlying MSP through Georgia Gateway (gateway.ga.gov); Buy-In activates automatically. :::

::: callout Key Takeaways

• The Medicare Buy-In is the administrative machinery under Section 1843 of the Social Security Act and 42 CFR Part 407 that converts MSP approvals into direct Medicaid premium payments to CMS.
• Buy-In covers different things for each MSP: QMB (Part A and B premiums plus cost-sharing), SLMB (Part B only), QI (Part B only, 100% federal funded), QDWI (Part A only).
• The Buy-In activation timeline is 30-60 days from DFCS approval to SSA premium-withholding cessation.
• Section 1839(b) exempts Buy-In months from the Part B Late Enrollment Penalty calculation, protecting low-income beneficiaries who delayed enrollment.
• Apply for the underlying MSP through Georgia Gateway (gateway.ga.gov) or DFCS at 1-877-423-4746. Buy-In activates automatically. :::

The Medicare Buy-In is authorized under Section 1843 of the Social Security Act, codified at 42 USC 1395v. The federal Medicaid matching authority comes from Section 1903(a)(1) of the SSA (42 USC 1396b(a)(1)). The federal regulations are at 42 CFR Part 407 (Medicare State Buy-In) and 42 CFR Part 431 Subpart C (Medicaid administration). Through this framework, Georgia DCH enters into a written agreement with CMS pursuant to which the state pays Medicare premiums directly to CMS on behalf of MSP-enrolled beneficiaries. CMS in turn coordinates with the Social Security Administration to stop premium withholding from beneficiaries' Social Security checks. The result is that beneficiaries never see a premium bill and the premium relief is fully automatic from their perspective.

The Buy-In also does several other important things that beneficiaries rarely know about. It exempts MSP enrollees from the Part B Late Enrollment Penalty under Section 1839(b) of the SSA, meaning that if a low-income beneficiary delayed Part B enrollment because they could not afford the premium and later qualified for MSP, the months of Buy-In enrollment do not count against them in the LEP calculation. It coordinates Part A buy-in for QMBs who do not have premium-free Part A through their own or a spouse's work history, and for QDWIs who are in the Section 226(b) extended Medicare entitlement window after losing SSDI. And it handles the deletion process when an MSP enrollee loses eligibility, including the SSA notification to resume premium withholding.

This guide explains the federal framework for the Medicare Buy-In, the 6-step Buy-In activation timeline from DFCS approval through SSA premium withholding cessation, how the Buy-In works for each of the four MSPs (QMB Part A and B, SLMB Part B only, QI Part B only with 100% federal funding, QDWI Part A only), the Section 1839(b) Late Enrollment Penalty exemption, the Coordination of Benefits Agreement (COBA) data exchange between Georgia DCH and CMS, common Buy-In failures and how to resolve them, Georgia DCH and DFCS administration, and worked examples for typical Georgia scenarios.

The Federal Framework: Section 1843 and the Buy-In Structure

The Medicare Buy-In predates the Medicare Savings Programs by more than two decades. Section 1843 of the Social Security Act was enacted in 1965 as part of the Social Security Amendments (Public Law 89-97) that created Medicare itself. The original purpose was to allow states to "buy in" to Medicare Part B on behalf of public assistance recipients, primarily the elderly, blind, and disabled receiving Old Age Assistance, Aid to the Blind, Aid to the Permanently and Totally Disabled, and (later) SSI.

The Original Section 1843 Purpose

In 1965, when Medicare was new, Congress recognized that low-income elderly individuals on state public assistance would face a hard choice. They were entitled to Part A (premium-free hospital insurance) automatically, but Part B (medical insurance) required a monthly premium. For someone receiving Old Age Assistance, the Part B premium could consume a substantial portion of their cash benefit, making Part B effectively unaffordable.

Section 1843 solved this by permitting states to enter into agreements with the federal government to pay Part B premiums on behalf of their public assistance populations. The federal-state administrative machinery was designed to:

1. Allow states to enroll specified individuals in Part B
2. Allow states to pay the premiums directly to CMS (then the Social Security Administration; CMS was created in 1977 as the Health Care Financing Administration, renamed to CMS in 2001)
3. Coordinate with the Social Security Administration so that Part B premium withholding did not occur for these individuals
4. Establish data exchange between state Medicaid systems and the federal Medicare program

Evolution Through Major Amendments

Section 1843 has been amended repeatedly. Key milestones:

• 1972 (PL 92-603): SSI replaced the earlier categorical assistance programs. The Buy-In was modified to accommodate SSI recipients who became automatically Medicaid-eligible (in 1634 states like Georgia).

• 1981 OBRA (PL 97-35): Authorized Part A Buy-In for state-only conditional Medicare entitlement. This was important for states that wanted to enroll certain individuals in Part A even though they lacked the 40 quarters of coverage required for premium-free Part A.

• 1986 OBRA (PL 99-509): Created QMB through Section 1902(a)(10)(E)(i). The new QMB program required states to use Buy-In for both Part A premiums (where applicable) and Part B premiums for all QMBs. Section 9116 also created the Disabled Adult Child Medicaid protection.

• 1988 MCCA (PL 100-360): Created SLMB through Section 1902(a)(10)(E)(iii)(I) and QDWI through Section 1902(a)(10)(E)(ii). Both required corresponding Buy-In arrangements.

• 1997 BBA (PL 105-33): Created QI program with 100% federal funding through a block grant. QI Buy-In is unique because there is no state share.

• 2003 MMA (PL 108-173): Modernized Buy-In data exchange and required states to use electronic transmission of accretion and deletion files.

• 2010 ACA (PL 111-148): Enhanced data exchange standards and accelerated reconciliation cycles.

• 2016 21st Century Cures Act: Administrative simplification provisions, including streamlining of Buy-In termination procedures.

Statutory Authority Summary

For Georgia Buy-In administration, the relevant federal authorities are:

• Section 1843 of the SSA (42 USC 1395v): core Buy-In authority
• Section 1903(a)(1) of the SSA (42 USC 1396b(a)(1)): federal matching for state Buy-In payments
• Section 1818 of the SSA (42 USC 1395i-2): voluntary Part A enrollment
• Section 1818A of the SSA (42 USC 1395i-2a): premium Part A for disabled individuals
• Section 1839 of the SSA (42 USC 1395r): Part B premium amount
• Section 1839(b) of the SSA: LEP exemption for Buy-In months
• Section 1902(a)(10)(E) of the SSA (42 USC 1396a(a)(10)(E)): MSP authority
• Section 1905(p) of the SSA (42 USC 1396d(p)): QMB definition
• Section 1905(s) of the SSA: dual eligible payment definitions
• 42 CFR Part 407 (407.10-407.86): Medicare State Buy-In regulations
• 42 CFR Part 431 Subpart C: Medicaid administration

Federal Matching for Buy-In Payments

Federal Medicaid matching applies to Buy-In premium payments under Section 1903(a)(1). Georgia's Federal Medical Assistance Percentage (FMAP) for 2026 is approximately 67%, meaning that on every dollar of Buy-In premium Georgia pays to CMS, the federal government reimburses Georgia approximately 67 cents. Georgia's state share is approximately 33 cents.

For the QI program, the funding structure is different. Section 1933 of the SSA creates a federal block grant for QI that funds 100% of QI Buy-In costs. Georgia receives an annual QI allotment from CMS and uses it to pay QI Part B premiums. No state share applies. The QI block grant is subject to an annual cap; if Georgia exhausts its allotment in a given year, new QI enrollments may be limited.

How the Buy-In Works for Each MSP

The four Medicare Savings Programs each have distinct Buy-In structures.

QMB (Qualified Medicare Beneficiary)

QMB is the most comprehensive MSP. The Buy-In for QMB covers:

• Part A premium if the individual is not entitled to premium-free Part A. Approximately 95% of QMBs are entitled to premium-free Part A through their own or a spouse's work history (40 quarters of Medicare-covered employment). The remaining 5% need Section 1818 voluntary enrollment, and the Buy-In pays the corresponding Part A premium ($311 or $565/month in 2026).

• Part B premium ($202.90/month standard in 2026). The Buy-In pays this directly to CMS for all QMBs.

• Medicare cost-sharing (deductibles, coinsurance, copays). This is technically not "Buy-In" in the strict sense; it is a separate Medicaid responsibility under Section 1905(p)(3) and 42 CFR 447.45. However, it is administered through the same Medicaid/Medicare coordination machinery and beneficiaries often refer to the entire QMB package as "Buy-In."

Total federal-state cost for a typical Georgia QMB in 2026:

• Part B premium: $202.90/month × 12 = $2,434.80/year
• Part A premium (rare): $311-$565/month × 12 = $3,732-$6,780/year (if applicable)
• Cost-sharing: varies widely, average $2,400-$4,800/year for active utilization
• Total: approximately $4,800-$14,000/year per QMB

SLMB (Specified Low-Income Medicare Beneficiary)

The SLMB Buy-In covers only the Part B premium. SLMBs are typically entitled to premium-free Part A and do not need Part A Buy-In. SLMB does NOT include cost-sharing protection, so deductibles, coinsurance, and copays are paid out-of-pocket by the SLMB (or through other coverage like Medigap or Medicare Advantage).

Total federal-state cost for a Georgia SLMB in 2026:

• Part B premium: $202.90/month × 12 = $2,434.80/year
• Total: $2,434.80/year per SLMB (Georgia share approximately $803)

QI (Qualifying Individual)

The QI Buy-In is similar to SLMB but funded through the federal QI block grant under Section 1933. The Buy-In covers only the Part B premium, with no state share.

Total federal cost for a Georgia QI in 2026:

• Part B premium: $202.90/month × 12 = $2,434.80/year
• Total: $2,434.80/year per QI (100% federal funded)

QDWI (Qualified Disabled and Working Individual)

The QDWI Buy-In covers only the Part A premium under Section 1818A for disabled individuals in the Section 226(b) extended Medicare entitlement window. QDWIs pay their Part B premium out-of-pocket; the Buy-In does not cover Part B for QDWIs.

Total federal-state cost for a Georgia QDWI in 2026:

• Part A premium: $311/month (30-39 quarters) or $565/month (under 30 quarters) × 12 = $3,732-$6,780/year
• Total: $3,732-$6,780/year per QDWI

The Six-Step Buy-In Activation Timeline

Understanding the Buy-In activation timeline is essential for beneficiaries because timing problems are the most common source of complaints. The timeline involves four entities (DFCS, Georgia DCH MMIS, CMS, and SSA) and typically takes 30-60 days from MSP application to actual premium-withholding cessation.

Step 1: DFCS or DCH Approval of the MSP Application

The Buy-In process begins when DFCS approves the MSP application. The applicant submits the application through Georgia Gateway (gateway.ga.gov), in person at a DFCS county office, or by phone at DFCS Customer Service. DFCS reviews the application against the MSP criteria and issues an approval or denial letter.

Federal regulations at 42 CFR 435.912 require a determination within 45 days of application (or 90 days for disability-based cases). Georgia typically meets this timeline.

Timeline: 30-45 days from application date.

Step 2: MMIS Buy-In Coding

Once DFCS approves the MSP, the approval is entered into the Georgia Medicaid Management Information System (MMIS). The MMIS includes a Buy-In flag for each MSP-enrolled member. The MMIS produces:

• A daily accretion file listing new MSP enrollees (typically generated overnight)
• A daily deletion file listing MSP terminations
• A daily premium payment file
• Other supporting data files

Timeline: same day or 1 business day after DFCS approval.

Step 3: COBA Transmission to CMS

The Coordination of Benefits Agreement (COBA) governs the data exchange between Georgia DCH and CMS. The MMIS accretion file is transmitted to CMS through COBA. CMS processes the file and updates its Medicare enrollment records.

Timeline: 1-3 business days from MMIS coding.

Step 4: CMS Confirmation and Reconciliation

CMS confirms receipt of the accretion file with Georgia DCH and updates its records. CMS also forwards the Buy-In status to the Social Security Administration (SSA), which is the agency that actually withholds Part B premiums from Social Security checks.

CMS may issue a reconciliation report identifying any data mismatches between Georgia DCH and CMS records. Georgia DCH and CMS work to resolve mismatches.

Timeline: 1-5 business days.

Step 5: SSA Premium Withholding Cessation

SSA processes the Buy-In notification and stops withholding Part B premiums from the beneficiary's Social Security check. Withholding cessation typically occurs the first day of the second month following SSA notification.

This is the step that beneficiaries actually experience. They notice that their Social Security check is suddenly $202.90 higher each month (the Part B premium amount).

Timeline: 30-60 days from Buy-In activation (depending on the calendar cycle).

Step 6: Beneficiary Reimbursement for Gap Months

If the beneficiary paid Part B premiums out-of-pocket during the gap between MSP approval and Buy-In activation, SSA processes a reimbursement. The reimbursement is typically:

• Issued as a one-time direct deposit to the beneficiary's bank account, or
• Issued as a paper check mailed to the beneficiary
• Equal to the number of months of out-of-pocket premiums during the gap

For retroactive MSP coverage (which can be up to 3 months prior to the application month under 42 CFR 435.915), the beneficiary can also recover premiums paid during the retroactive period.

Timeline: 60-90 days from Buy-In activation.

The Section 1839(b) Late Enrollment Penalty Exemption

A critical feature of the Buy-In is the protection against the Part B Late Enrollment Penalty (LEP). Without this protection, low-income beneficiaries who delayed Part B enrollment because they could not afford the premium would face a permanent penalty for the rest of their lives.

The Standard Part B LEP Rule

Under Section 1839(b) of the SSA, the standard Part B Late Enrollment Penalty applies to anyone who does not enroll in Part B during their Initial Enrollment Period or a qualifying Special Enrollment Period. The penalty:

• Is 10% of the standard Part B premium for each 12-month period of delay
• Is added to the Part B premium permanently
• Continues for as long as the beneficiary has Part B
• For example, a beneficiary who delayed Part B for 3 years would pay 130% of the standard premium for life

For the 2026 standard Part B premium of $202.90, a 3-year delay would add $60.87/month permanently, for a total of $263.77/month.

The Section 1839(b) Buy-In Exemption

Section 1839(b) provides that months of enrollment in a State Buy-In Agreement do NOT count toward the LEP delay calculation. This means:

• A beneficiary who is in Buy-In for X months has those X months excluded from the LEP penalty calculation
• The LEP penalty is recalculated based only on months when the beneficiary was eligible for Part B but not enrolled and not in Buy-In
• For many low-income beneficiaries, the exemption eliminates the LEP entirely

Practical Example

Consider a beneficiary who:

• Turned 65 in 2018 and was eligible for Part B
• Did not enroll because she could not afford the premium
• Applied for QMB in 2024 and was approved
• Buy-In activated in 2024

Without the exemption, the LEP calculation would treat 2018-2024 as 6 years of delay, resulting in a 60% LEP added to her Part B premium permanently (effectively $121.74/month additional penalty in 2026).

With the Section 1839(b) Buy-In exemption, the calculation excludes Buy-In months. Because she is now in Buy-In and Medicaid is paying the premium, the entire post-2024 period is excluded. The pre-2024 delay (2018-2024) still counts, but in practice many beneficiaries also qualify for various exclusions and the practical LEP can be smaller than the raw calculation suggests. Beneficiaries should consult SSA or GeorgiaCares for case-specific calculations.

The key point: Buy-In months never count against the LEP. If the beneficiary loses MSP eligibility in the future and has to pay Part B out-of-pocket, the LEP calculation will not include the Buy-In months.

The COBA Data Exchange

The Coordination of Benefits Agreement (COBA) is the technical data exchange standard between state Medicaid agencies and CMS for Buy-In administration. Understanding COBA helps explain why Buy-In timing can be uneven.

COBA File Types

The COBA exchange between Georgia DCH and CMS includes:

• Daily accretion files: list of new MSP enrollees to be added to Buy-In
• Daily deletion files: list of MSP terminations to remove from Buy-In
• Daily premium payment files: amounts to be paid to CMS
• Weekly reconciliation reports: identify data mismatches
• Monthly reconciliation: comprehensive review and adjustment
• Annual settlement: final reconciliation of fiscal year accounts

Common Data Mismatches

The most common COBA data mismatches:

• Identity mismatches: SSN, name, or date of birth differs between Georgia and CMS records
• Enrollment overlap: beneficiary appears to be enrolled in multiple MSP categories simultaneously
• Effective date mismatches: Georgia's effective date differs from CMS's effective date by several months
• Premium amount mismatches: state-calculated premium differs from CMS-billed premium
• Cost-sharing classification errors: QMB versus SLMB classification differences

When mismatches occur, the resolution typically requires staff at Georgia DCH and CMS to work together. Beneficiaries who experience Buy-In delays should contact DCH Member Services to request a case review.

Common Buy-In Failures and How to Resolve Them

Even when the Buy-In machinery works correctly, errors can occur. The following are the most common Buy-In failures in Georgia and the recommended resolution paths.

Failure 1: MSP Approved but Buy-In Not Activated

The DFCS approval letter says "QMB" or "SLMB" or "QI" or "QDWI" but premium withholding continues from the beneficiary's Social Security check. The most common cause is that the MMIS Buy-In flag was not set correctly after DFCS approval.

Resolution:

1. Contact DCH Member Services at 1-866-211-0950
2. Request a "Buy-In case review"
3. Provide the DFCS approval date and the MSP category
4. DCH staff investigates the MMIS record and manually triggers the accretion if needed
5. Allow 4-6 weeks for the manual accretion to flow through to SSA

If DCH does not respond timely, escalate to DFCS Customer Service at 1-877-423-4746 or contact Atlanta Legal Aid Senior Citizens Law Project at 404-377-0701 for advocacy support.

Failure 2: CMS Receives Accretion but Does Not Process

The MMIS accretion file goes to CMS through COBA, but CMS does not process it timely. The cause is usually a CMS system error or data mismatch.

Resolution:

1. Contact 1-800-MEDICARE
2. Request to speak with the "Medicare Buy-In customer service line"
3. Provide the Medicare number, the MSP category, and the approval date
4. CMS investigates and processes the accretion manually if needed

Failure 3: SSA Continues Withholding After Buy-In Active

Buy-In is active at CMS but SSA continues to withhold Part B premiums from the Social Security check. The beneficiary is effectively paying twice (Medicaid pays the premium, but SSA also deducts it).

Resolution:

1. Contact SSA at 1-800-772-1213
2. Request a "premium refund for Buy-In overlap"
3. Provide the Medicare number and the Buy-In activation date
4. SSA processes a refund typically as a one-time direct deposit or paper check

Failure 4: Buy-In Termination but Premium Withholding Resumes Late

When a beneficiary loses MSP eligibility (income increase, asset increase, marriage, etc.), the deletion file should trigger SSA to resume premium withholding. Sometimes there is a lag of 1-3 months during which Medicare premiums accumulate as a debt to CMS.

Resolution:

1. Set aside the premium amount each month during the transition period to avoid a large bill
2. Contact CMS at 1-800-MEDICARE to pay any accumulated balance
3. Confirm with SSA that withholding will resume
4. Avoid Medicare premium debt that could result in Part B termination

Failure 5: Retroactive Coverage Period Not Reimbursed

MSP can be retroactive for up to 3 months prior to the application month under 42 CFR 435.915. If the beneficiary paid premiums out-of-pocket during the retroactive period, reimbursement should occur but sometimes does not.

Resolution:

1. Contact SSA directly with proof of premium payment (bank statements, SSA premium deduction records)
2. Request "retroactive premium reimbursement for Buy-In coverage period"
3. Provide the retroactive coverage start date from DFCS
4. SSA processes the retroactive reimbursement

Failure 6: Provider Improperly Bills QMB for Cost-Sharing

QMBs are protected from cost-sharing under Section 1902(n)(3)(B) of the SSA, 42 CFR 447.205, and 42 CFR 422.504(g) for Medicare Advantage plans. Providers cannot bill QMBs for Medicare deductibles, coinsurance, or copays. Sometimes providers improperly bill QMBs.

Resolution:

1. Show the provider proof of QMB status (Medicaid card showing QMB, DFCS approval letter)
2. If billing continues, contact 1-800-MEDICARE to report "QMB improper billing"
3. File a complaint with the CMS Medicaid Beneficiary Improper Billing reporting system
4. Atlanta Legal Aid Senior Citizens Law Project at 404-377-0701 can help with persistent improper billing

Georgia DCH/DFCS Administration

Georgia administers the Medicare Buy-In through the Department of Community Health (DCH) and the Division of Family and Children Services (DFCS). The administrative roles:

DCH Role

The Department of Community Health is the single state Medicaid agency under federal Medicaid rules. DCH:

• Maintains the State Plan Amendment that defines Georgia's Buy-In agreement with CMS
• Operates the MMIS that codes Buy-In status and generates daily files
• Maintains the COBA data exchange with CMS
• Pays premiums to CMS each month
• Receives federal matching funds for Buy-In payments
• Resolves data mismatches and operational issues with CMS

DFCS Role

The Division of Family and Children Services administers the eligibility determination process. DFCS:

• Receives and processes MSP applications through Georgia Gateway and county offices
• Determines eligibility based on income, assets, and Medicare entitlement
• Issues approval or denial letters
• Records approvals in the MMIS, which triggers Buy-In coding
• Handles redetermination and renewal of MSP eligibility
• Processes adverse action notices when eligibility is lost

MMIS Contractor

Georgia DCH contracts with a third-party MMIS contractor that operates the technical infrastructure for Medicaid claims processing, eligibility maintenance, and Buy-In data exchange. The MMIS contractor is responsible for daily accretion and deletion file generation, premium payment processing, and reconciliation with CMS.

Georgia Gateway

Georgia Gateway (gateway.ga.gov) is the public-facing portal for MSP applications. Beneficiaries use Gateway to:

• Submit initial MSP applications
• Upload supporting documentation
• Check application status
• Respond to DFCS requests
• Complete annual renewals
• View benefit cards

Gateway also displays Buy-In status once activated. Beneficiaries can verify that Buy-In is active for their account.

Worked Examples: Georgia Buy-In Scenarios

The following examples illustrate how the Medicare Buy-In works in practice. Names and details are illustrative.

Example 1: Doris, 72, Atlanta: QMB Approval to Buy-In Activation Timeline

Doris is a 72-year-old retiree with $1,200/month Social Security and $5,500 in savings. She has Medicare Part A (premium-free) and Part B with $202.90/month premium deducted from her Social Security check. She heard about QMB from her senior center and applied through Georgia Gateway in March.

Day-by-day timeline:

• March 5: Doris submits QMB application through Georgia Gateway
• April 18: DFCS approves QMB; approval letter mailed
• April 19: MMIS Buy-In flag set; daily accretion file generated overnight
• April 22: COBA accretion file transmitted to CMS
• April 24: CMS processes accretion; notification sent to SSA
• May 1: SSA's first opportunity to stop premium withholding for that month falls past the cutoff
• June 1: SSA premium withholding stops; Doris's June Social Security check is $202.90 higher
• July 15: SSA reimbursement for May Part B premium ($202.90) deposited
• August 1: Retroactive QMB coverage to January (3 months prior to March application); SSA processes reimbursement for January-March premiums ($608.70 total)

Total Doris paid out-of-pocket during gap (April, May): $405.80. Reimbursed via SSA in July-August.

Going forward, Doris pays no premiums. Her Medicare cost-sharing (deductibles, coinsurance, copays) is also fully covered through QMB cost-sharing protection.

Example 2: Henry, 70, Savannah: SLMB Buy-In Activation

Henry has $1,500/month Social Security, slightly above the QMB income limit (100% FPL = $1,305 single) but below the SLMB limit (120% FPL = $1,566). He applies for SLMB through Georgia Gateway.

DFCS approves SLMB. The MMIS Buy-In flag is set for Part B only (SLMBs do not get Part A Buy-In or cost-sharing protection). The COBA accretion file transmits to CMS. SSA stops withholding the $202.90 Part B premium from Henry's check the second month following Buy-In activation.

Henry's net monthly cash flow increases by $202.90/month, or $2,434.80/year. He still pays Medicare deductibles, coinsurance, and copays out-of-pocket because SLMB does not include cost-sharing protection.

Example 3: Joyce, 68, Macon: Buy-In Failure and Recovery

Joyce applies for QMB in January. DFCS approves in February. Joyce expects premium withholding to stop, but March and April Social Security checks still show the $202.90 deduction.

In May, Joyce calls DCH Member Services at 1-866-211-0950. She explains the situation. The DCH worker investigates the MMIS record and discovers that the Buy-In flag was not properly set due to a coding error. The worker manually corrects the record and triggers an accretion to CMS.

By June, SSA stops withholding. By July, Joyce receives a reimbursement of $608.70 ($202.90 × 3 months for March, April, and May out-of-pocket payments). Total resolution time: 5 months from DFCS approval, 4 months longer than the typical Buy-In timeline.

If the issue had been more difficult, Joyce could have escalated to:

• DFCS Customer Service: 1-877-423-4746
• Atlanta Legal Aid Senior Citizens Law Project: 404-377-0701
• A state hearing request

Example 4: Charles, 75, Augusta: Dual Eligible QMB-Plus with Full Medicaid

Charles is 75 and has both Medicare and full Georgia Medicaid (ABD Medicaid with QMB). He resides in a Georgia nursing facility. His Buy-In covers:

• Part B premium ($202.90/month) paid to CMS
• Medicare cost-sharing through QMB rules (deductibles, coinsurance)
• Full Medicaid wrap-around for services Medicare does not cover (nursing facility room and board, etc.)

The Buy-In here is one component of a comprehensive dual-eligible coordination. Medicare is primary for hospital, physician, and prescription drug services. Medicaid pays for the nursing facility (with Charles's personal needs allowance of $70/month from his Social Security). The Buy-In keeps Medicare active without premium payments from Charles.

Example 5: Patricia, 55, Columbus: QDWI Part A Buy-In Only

Patricia is 55, was on SSDI for 8 years following a stroke. She returned to part-time work earning $2,400/month, lost SSDI cash benefits, but retains Medicare under Section 226(b) extended entitlement. CMS bills her for the $311/month Part A premium under Section 1818A.

Patricia applies for QDWI through Georgia Gateway. DFCS approves. The MMIS Buy-In flag is set for Part A only (QDWI Buy-In does not cover Part B). The COBA accretion file transmits to CMS.

Going forward:

• Medicaid pays the $311/month Part A premium directly to CMS through the Buy-In
• Patricia continues to pay the $202.90/month Part B premium out-of-pocket through SSA premium deduction (or direct billing because she has no Social Security check)
• Patricia separately applies for LIS (because QDWI does NOT trigger automatic LIS auto-enrollment)
• Patricia retains her commercial supplemental coverage through her employer

Example 6: Robert, 78, Athens: Loss of MSP and Buy-In Deactivation

Robert has been a QMB for 5 years. In May 2026, his daughter dies and leaves him a $12,000 inheritance. This pushes his countable resources above the QMB limit of $9,950. DFCS terminates his QMB eligibility effective June 1.

The MMIS records the termination and generates a deletion file. The COBA transmits the deletion to CMS. CMS notifies SSA. SSA resumes Part B premium withholding starting with the August Social Security check (the second month after deletion).

In the meantime:

• June and July: Medicare bills Robert for the Part B premium because Buy-In is deactivated but SSA has not yet resumed withholding
• August onward: SSA resumes the $202.90 premium deduction from Robert's Social Security check

Robert has approximately $405.80 in accumulated Medicare premium debt for June and July (he was billed but did not pay because he didn't realize Buy-In had stopped). He calls Medicare at 1-800-MEDICARE to set up a payment plan.

Robert may re-apply for SLMB once his resources are below the SLMB threshold (also $9,950). He can spend down by paying off allowable debts, purchasing exempt resources (burial fund, home repairs, etc.), or simply spending the inheritance over time. Once his resources are back below threshold, SLMB Buy-In can activate to cover the Part B premium going forward.

Special Considerations

Conditional Medicare Entitlement and State Part A Buy-In

A small number of Georgia beneficiaries have "conditional" Medicare entitlement under Section 1818 voluntary enrollment. These are typically:

• Individuals who turn 65 without 40 quarters of Medicare-covered employment
• Individuals who became disabled but did not accrue 40 quarters before disability

For these individuals, Part A is not premium-free. The Part A premium is $311/month (with 30-39 quarters) or $565/month (under 30 quarters). If the individual qualifies for QMB, the Part A Buy-In pays this premium.

State Part A Buy-In is administratively more complex than Part B Buy-In because it involves additional CMS verification of the individual's quarters of coverage and Section 1818 eligibility. Beneficiaries who need Part A Buy-In should work with GeorgiaCares (1-866-552-4464) for counseling.

Coordination with Medicare Advantage and D-SNPs

For QMBs enrolled in Medicare Advantage plans (including D-SNPs), the Buy-In premium payments and cost-sharing protections still apply. The Medicare Advantage plan receives the Medicare capitation payment from CMS, and the plan in turn provides services with $0 cost-sharing for QMB enrollees under 42 CFR 422.504(g).

The Buy-In administrative pathway is unchanged. The plan's enrollment information is captured in CMS systems alongside the Buy-In status, ensuring coordination.

Premium Reimbursement for Self-Paying Beneficiaries

Some Medicare beneficiaries do not have Social Security checks (e.g., individuals who retired without sufficient quarters for retirement benefits, or who deferred retirement) and pay their Part B premium directly to Medicare each quarter. For these beneficiaries, Buy-In activation results in Medicaid paying the premium directly to CMS instead of the beneficiary paying. There is no SSA withholding cessation step.

If the beneficiary paid quarterly premiums in advance, they should request a refund from Medicare for any post-Buy-In months they paid.

Spousal Considerations

The Buy-In is individual, not household. If one spouse qualifies for QMB and the other does not, only the qualifying spouse's premiums are covered. The non-qualifying spouse continues to pay premiums out-of-pocket.

Some couples have unequal MSP eligibility (e.g., one spouse on QMB, the other on SLMB) due to one spouse having significantly less Social Security or working part-time. The Buy-In handles each spouse separately.

Tribal Eligibility Considerations

For Native American beneficiaries with Indian Health Service (IHS) benefits, Buy-In coordinates with IHS services. The Buy-In does not replace IHS but provides the Medicare coverage that supplements IHS. Beneficiaries should coordinate with their tribal benefits office.

Step-by-Step Process: Buy-In Activation

The following steps describe the typical Buy-In activation process from the beneficiary's perspective.

Step 1: Apply for the Underlying MSP

Submit an MSP application through Georgia Gateway (gateway.ga.gov), in person at any DFCS county office, or by phone at DFCS Customer Service 1-877-423-4746. Provide documentation of income, resources, Medicare entitlement, and Georgia residency.

Step 2: Wait for DFCS Approval

DFCS will issue an approval or denial letter within 30-45 days. Approval triggers automatic MMIS Buy-In coding.

Step 3: Monitor Premium Withholding

After receiving the DFCS approval, monitor your Social Security check for premium withholding cessation. This typically takes 30-60 days from the DFCS approval date.

Step 4: Verify Buy-In Status at Georgia Gateway

Log in to gateway.ga.gov to verify your MSP and Buy-In status. The Gateway should display your current MSP category and active Buy-In status.

Step 5: Address Any Issues

If Buy-In does not activate within 60 days of DFCS approval:

• Call DCH Member Services at 1-866-211-0950
• Call DFCS Customer Service at 1-877-423-4746
• Call 1-800-MEDICARE for CMS-side issues
• Call SSA at 1-800-772-1213 for premium withholding issues

Step 6: Receive Reimbursement for Out-of-Pocket Payments

SSA will process reimbursement for premiums paid out-of-pocket during the activation gap and for the retroactive coverage period (up to 3 months prior to application).

Step 7: Maintain Annual Renewal

Complete the annual MSP renewal through Georgia Gateway to maintain Buy-In status. Failure to renew results in MSP termination and Buy-In deletion.

Fifteen Common Mistakes

1. Not understanding the gap between MSP approval and Buy-In activation. Buy-In takes 30-60 days after DFCS approval. Continue paying premiums during the gap and seek reimbursement once Buy-In activates.

2. Continuing to pay premiums out-of-pocket after Buy-In should have activated. If 60 days have passed and premiums are still being withheld, contact DCH Member Services immediately.

3. Not requesting retroactive reimbursement when entitled. MSP can be retroactive up to 3 months. Request retroactive reimbursement for premiums paid during that period.

4. Confusing Buy-In activation with MSP approval. They are sequential. MSP approval is the first step; Buy-In activation is downstream.

5. Not knowing the Section 1839(b) LEP exemption exists. Buy-In months never count against the Part B Late Enrollment Penalty calculation. Apply for MSP/Buy-In even if you delayed Part B initially.

6. Allowing providers to improperly bill QMBs for cost-sharing. QMBs are protected from cost-sharing under federal rules. Show your Medicaid card and report improper billing to Medicare.

7. Failing to coordinate Part A Buy-In with Part B Buy-In. Some QMBs need both. Make sure DCH correctly codes both Part A and Part B Buy-In when applicable.

8. Not knowing that QDWI Buy-In is Part A only. QDWI beneficiaries continue to pay Part B premiums out-of-pocket.

9. Confusing QI 100% federal funding with state liability. QI is fully federally funded through a block grant; no state share applies. This does not affect the beneficiary directly but explains some administrative differences.

10. Not understanding COBA reconciliation cycles. Data mismatches can cause temporary delays. Be patient but escalate after 60 days.

11. Not contacting DCH Buy-In Unit when issues arise. Many beneficiaries suffer silently. Call DCH Member Services to start a Buy-In case review.

12. Failing to maintain documentation of premium payments during the gap. Keep Social Security earnings statements and bank statements to document the premiums you paid.

13. Not understanding accretion vs deletion timing. Termination of MSP triggers a deletion, but resumption of premium withholding can take 1-3 months.

14. Assuming Buy-In is permanent. Buy-In is tied to MSP eligibility. Loss of MSP (due to income, asset, or other changes) deactivates Buy-In.

15. Not understanding the 3-month retroactive coverage window. Apply for retroactive coverage and request retroactive reimbursement for premiums paid before the application month.

::: accordion

What is the Medicare Buy-In?

The Medicare Buy-In or State Buy-In Agreement is the federal-state administrative mechanism under Section 1843 of the Social Security Act and 42 CFR Part 407 through which Georgia DCH pays Medicare premiums directly to CMS on behalf of Medicare Savings Program (MSP) enrollees. The Buy-In is what makes the QMB, SLMB, QI, and QDWI premium relief actually functional.

Who administers the Buy-In in Georgia?

Georgia DCH (Department of Community Health) is the single state Medicaid agency responsible for the Buy-In agreement with CMS. DFCS (Division of Family and Children Services) handles the eligibility determination. The Buy-In itself flows through the MMIS (Medicaid Management Information System) and COBA (Coordination of Benefits Agreement) data exchange with CMS.

How long does Buy-In activation take?

Typically 30-60 days from DFCS approval. The timeline includes MMIS coding (1 day), COBA transmission to CMS (1-3 days), CMS processing (1-5 days), and SSA premium-withholding cessation (which typically occurs the first day of the second month after SSA notification).

Why am I still being billed for Medicare premiums after my QMB approval?

Buy-In activation takes time. If less than 60 days have passed since your DFCS approval, this is normal; the activation is in progress. If more than 60 days have passed, contact DCH Member Services at 1-866-211-0950 to request a Buy-In case review.

What does the Buy-In cover for QMB?

The Buy-In covers the Part A premium (if you need premium Part A under Section 1818) and the Part B premium ($202.90/month standard in 2026). Additionally, QMB enrollees receive cost-sharing protection (deductibles, coinsurance, copays paid by Medicaid as secondary), which is technically separate from Buy-In but administered through the same coordination machinery.

What does the Buy-In cover for SLMB?

The Buy-In covers only the Part B premium ($202.90/month). SLMB does not include Part A Buy-In (because most SLMBs have premium-free Part A) or cost-sharing protection.

What does the Buy-In cover for QI?

The Buy-In covers only the Part B premium, funded 100% by the federal QI block grant under Section 1933 of the SSA. No state share applies. QI does not include Part A Buy-In or cost-sharing protection.

What does the Buy-In cover for QDWI?

The Buy-In covers only the Medicare Part A premium ($311 or $565/month in 2026) under Section 1818A for disabled individuals in the Section 226(b) extended Medicare entitlement window. QDWI does not include Part B Buy-In; QDWIs pay Part B premiums out-of-pocket.

What is the Part B Late Enrollment Penalty exemption?

Under Section 1839(b) of the SSA, months of enrollment in a State Buy-In Agreement do not count toward the Part B Late Enrollment Penalty (LEP) delay calculation. This protects low-income beneficiaries who delayed Part B enrollment because they could not afford the premium from facing a permanent LEP penalty.

Can my Buy-In be retroactive?

Yes. MSP can be retroactive up to 3 months prior to the application month under 42 CFR 435.915, provided you were eligible during the retroactive period. Buy-In activates for the retroactive period as well, and you can request reimbursement for premiums paid out-of-pocket during that time.

How do I verify my Buy-In is active?

Log in to Georgia Gateway at gateway.ga.gov and check your MSP and Buy-In status. You can also check by calling DCH Member Services at 1-866-211-0950. Another sign is that your Social Security check no longer shows the Part B premium deduction.

What is COBA?

The Coordination of Benefits Agreement is the standardized data exchange between state Medicaid agencies and CMS for Buy-In and other Medicare-Medicaid coordination. It includes daily accretion files (new MSP enrollees), daily deletion files (MSP terminations), premium payments, and reconciliation reports.

What if I lose MSP eligibility?

The MMIS generates a deletion file. CMS processes the deletion and notifies SSA. SSA resumes Part B premium withholding starting the first day of the second month following the deletion. During the transition, Medicare may bill you directly for any premium gaps.

Can a provider bill me for Medicare deductibles or copays if I am a QMB?

No. QMBs are protected from cost-sharing under Section 1902(n)(3)(B) of the SSA, 42 CFR 447.205, and 42 CFR 422.504(g) for Medicare Advantage. Show the provider proof of QMB status. If billing continues, report it to 1-800-MEDICARE.

What if I have Medicare Advantage instead of Original Medicare?

Buy-In still applies. For Medicare Advantage enrollees, Medicaid pays the Part B premium (and Part A premium if applicable) directly to CMS. The MA plan receives the Medicare capitation. The plan must provide services with $0 cost-sharing for QMB enrollees.

Do I need to enroll in Buy-In separately?

No. Buy-In activates automatically when DFCS approves your MSP application. You do not need to file a separate Buy-In application. Just apply for the MSP through Georgia Gateway.

What if I am a federal retiree or have no Social Security check?

Buy-In still works. Medicaid pays your Medicare premium directly to CMS instead of through SSA withholding. If you were paying quarterly premiums directly to Medicare, you can request a refund for post-Buy-In months you prepaid.

Does Buy-In coordinate with my employer health plan or retiree coverage?

Buy-In does not replace or affect employer/retiree coverage. Medicare and the other plan coordinate based on Medicare Secondary Payer (MSP) rules under 42 CFR Part 411. Buy-In simply pays the Medicare premium that keeps Medicare active.

Can my spouse and I both have Buy-In?

Yes, but each spouse is evaluated separately. If both spouses qualify for MSP, both will have Buy-In activated. If only one qualifies, only one will have Buy-In active.

What if I move out of Georgia?

You lose Georgia Medicaid eligibility (and Georgia Buy-In) when you move. Apply for Medicaid and MSP in your new state. There may be a coverage gap during the transition.

What if my Part B premium amount changes?

Buy-In automatically adjusts. If the standard Part B premium changes (typically each January) or if you have an income-related Monthly Adjustment Amount (IRMAA), the Buy-In adjusts to pay the new amount.

Can I appeal a Buy-In denial?

Yes. You appeal the underlying MSP determination, not the Buy-In itself. If DFCS denies your MSP application, you can request a state hearing through DFCS within the timeframe specified in the denial notice (typically 30 days).

Does Buy-In affect my Medicaid coverage?

Buy-In is part of your overall Medicaid eligibility under the MSP. Approval of MSP triggers Buy-In; loss of MSP terminates Buy-In. The Buy-In itself is a payment mechanism, not separate coverage.

Where can I get free help with Buy-In issues?

GeorgiaCares (Georgia SHIP) at 1-866-552-4464 provides free Medicare counseling including Buy-In issues. Atlanta Legal Aid Senior Citizens Law Project at 404-377-0701 and Georgia Legal Services Program at 1-800-498-9469 provide free legal help. The Medicare Rights Center at 1-800-333-4114 also assists with Buy-In and Medicare issues.

:::

::: cta Get Help With Medicare Buy-In in Georgia

If you are enrolled in a Medicare Savings Program but are still being billed for Medicare premiums, or if you need help applying for QMB, SLMB, QI, or QDWI, these free Georgia and federal resources can help.

State and federal agencies

• Georgia DCH Medicaid Member Services: 1-866-211-0950
• Georgia DFCS Customer Service: 1-877-423-4746
• Medicare: 1-800-MEDICARE (1-800-633-4227)
• Social Security Administration: 1-800-772-1213
• Georgia Gateway online: gateway.ga.gov

Counseling and information

• GeorgiaCares (Georgia SHIP): 1-866-552-4464
• Georgia Department of Aging Services (ADRC): 1-866-552-4464
• Medicare Rights Center: 1-800-333-4114
• Center for Medicare Advocacy: 1-860-456-7790
• Eldercare Locator: 1-800-677-1116
• 211 Georgia: dial 2-1-1

Legal advocacy

• Atlanta Legal Aid Senior Citizens Law Project: 404-377-0701
• Georgia Legal Services Program: 1-800-498-9469
• Justice in Aging: 202-289-6976
• Disability Rights Georgia: 404-885-1234

Membership and advocacy organizations

• AARP Georgia: 1-866-295-7283

Find personalized help navigating Georgia Medicare Buy-In at brevy.com. :::