Roughly 3 million retirees are receiving long-overdue Social Security back payments in 2026, following the repeal of two controversial rules — the Windfall Elimination Provision (WEP) and the Government Pension Offset (GPO) — through the Social Security Fairness Act signed into law in January 2025. If you spent part of your career as a teacher, firefighter, police officer, or other public-sector worker and were told your Social Security benefit would be reduced (or eliminated entirely), there is a real chance money is heading your way. The Social Security Administration (SSA) began processing retroactive payments and higher monthly benefits for affected retirees, with many seeing lump-sum checks covering benefits they were shorted going back to January 2024.

Who Are the 3 Million Retirees Getting Back Pay?

For decades, the WEP and GPO rules quietly slashed Social Security benefits for people who also received a pension from a job that didn’t pay into Social Security — think state and local government employees, many teachers, and some federal workers hired before 1984. The WEP reduced your own Social Security retirement benefit. The GPO reduced or wiped out spousal and survivor benefits.

With both rules now permanently repealed, the SSA has been working through a massive backlog to recalculate benefits and issue back pay. The affected group includes:

  • Retired public-sector workers who paid into Social Security through other jobs but had their benefit reduced by the WEP.
  • Spouses and surviving spouses of Social Security recipients whose benefits were cut or eliminated by the GPO.
  • People already collecting who simply see a higher monthly payment going forward, plus a retroactive lump sum.

If you think you might qualify, the fastest step is to log in to your my Social Security account at ssa.gov or call the SSA at 1-800-772-1213. Many payments are going out automatically, but errors do happen — it pays to verify your record.

How Much Extra Money Could You Receive?

The amounts vary enormously depending on your earnings history, the size of your government pension, and how long you’ve been collecting. The SSA has reported average benefit increases of around $360 per month for WEP-affected retirees and over $700 per month for some GPO-affected spouses. Lump-sum back payments covering the period since January 2024 could run from a few hundred dollars to well over $10,000 for some households.

Keep one important thing in mind: this new income may affect your taxes. Up to 85% of your Social Security benefits can be taxable at the federal level once your combined income (adjusted gross income + nontaxable interest + half of Social Security) crosses $34,000 for single filers or $44,000 for married couples filing jointly. A sudden lump sum could push you into a higher bracket for 2026, so it’s worth a conversation with a tax professional before you spend it all.

When Should You Claim Social Security to Maximise Your Benefit?

The back-pay story is a good reminder of just how much the timing and rules around Social Security affect your lifetime income. If you haven’t yet claimed — or you have a younger spouse who hasn’t — the general principle holds: every year you delay past 62 and up to age 70 adds roughly 6–8% to your annual benefit. Claiming at 70 instead of 62 can mean a benefit that is more than 75% larger. For a healthy couple, delaying at least the higher earner’s benefit to 70 is often the single biggest retirement income move available.

How Much of Social Security Is Taxable?

This is one of the most Googled questions among retirees — and for good reason, because the answer surprises many people. Social Security benefits are never 100% tax-free at the federal level once your income exceeds certain thresholds. Here’s the quick breakdown:

  • 0% taxable if your combined income is below $25,000 (single) or $32,000 (married filing jointly).
  • Up to 50% taxable if combined income is $25,000–$34,000 (single) or $32,000–$44,000 (joint).
  • Up to 85% taxable above those thresholds.

Note that these thresholds have not been adjusted for inflation since 1983, which means more retirees are being pulled into taxation every year. Thirteen states also tax Social Security to varying degrees — check your state’s rules.

What Are the RMD Rules for 2025 and 2026?

Required Minimum Distributions (RMDs) are the IRS-mandated withdrawals you must take from traditional IRAs, 401(k)s, and most other tax-deferred retirement accounts once you reach a certain age. Under the SECURE 2.0 Act, the starting age is now 73 (and rises to 75 for anyone born in 1960 or later). For 2025 and 2026, the rules are essentially the same: you calculate your RMD each year by dividing your account balance (as of December 31 of the prior year) by a life-expectancy factor published in IRS tables. Miss your RMD and the penalty is a steep 25% of the amount you should have withdrawn — reduced to 10% if you correct it quickly. One planning note: a large Social Security lump-sum payment combined with your RMD in the same year could significantly raise your taxable income.

How Do I Avoid Medicare IRMAA Surcharges?

IRMAA — the Income-Related Monthly Adjustment Amount — is a surcharge added on top of your standard Medicare Part B and Part D premiums when your income exceeds certain thresholds. For 2025, the standard Medicare Part B premium is $185.00 per month, but high earners can pay $259.00 to $628.90 per month depending on income. The thresholds are based on your tax return from two years prior, so your 2026 Medicare premiums are determined by your 2024 income.

If you receive a large Social Security lump-sum back payment in 2026, it will be reflected in your 2026 tax return — which means it could trigger IRMAA surcharges in 2028. Strategies to reduce the hit include:

  • Roth conversions in lower-income years to reduce future taxable withdrawals.
  • Qualified Charitable Distributions (QCDs) to satisfy RMDs without those dollars counting as income.
  • Filing a life-changing event appeal with Medicare if your income drops significantly in a given year.

Good planning now can save you hundreds of dollars per month in Medicare premiums down the road.

What You Should Do Right Now

If you or your spouse worked in the public sector, check your SSA account today. The money may already be there or on its way. Then take a few practical steps:

  1. Verify your benefit calculation — call the SSA if the numbers don’t look right.
  2. Set aside a portion for taxes — at least 10–22% of a lump sum is a reasonable starting point.
  3. Check your Medicare situation — understand how a higher income year in 2026 could affect your 2028 premiums.
  4. Revisit your RMD strategy — extra income may change your optimal withdrawal order.

Three million retirees getting money they were wrongly denied is genuinely good news. Making sure it works for you — not against you at tax time — is the real goal.

Frequently Asked Questions

Frequently Asked Questions

When should I claim Social Security to maximise my benefit?

The longer you wait to claim Social Security — up to age 70 — the larger your monthly benefit. Delaying from age 62 to 70 can increase your benefit by more than 75%, and for married couples, having the higher earner delay to 70 is often the most powerful retirement income strategy available.

How much of my Social Security benefit is taxable?

Up to 85% of your Social Security benefit can be subject to federal income tax if your combined income (AGI plus nontaxable interest plus half of Social Security) exceeds $34,000 for single filers or $44,000 for married couples filing jointly. Below $25,000 (single) or $32,000 (joint), your benefits are generally not taxed at the federal level.

What are the RMD rules for 2025 and 2026?

Under the SECURE 2.0 Act, Required Minimum Distributions from traditional IRAs and 401(k)s must begin at age 73, rising to 75 for those born in 1960 or later. Each year’s RMD is calculated by dividing your prior December 31 account balance by an IRS life-expectancy factor, and missing the deadline triggers a penalty of up to 25% of the amount you should have withdrawn.

How do I avoid Medicare IRMAA surcharges?

IRMAA surcharges are based on your income from two years prior, so proactive planning matters. Strategies include doing Roth conversions in lower-income years, using Qualified Charitable Distributions to satisfy RMDs without raising taxable income, and filing a life-changing event appeal with Medicare if your income drops significantly.

What is the Medicare Part B premium for 2025?

The standard Medicare Part B premium for 2025 is $185.00 per month. Higher-income beneficiaries pay more due to IRMAA surcharges, with premiums ranging up to $628.90 per month depending on income level. Premiums are typically deducted directly from your Social Security benefit each month.