With the recent repeal of the Windfall Elimination Provision (WEP) and Government Pension Offset (GPO), many federal retirees are now receiving retroactive Social Security payments going all the way back to January 2024. While that extra money is certainly welcome, it can also come with a catch: a big spike in taxable income for the year.

This unexpected income bump could lead to a higher tax bill—and for some retirees, it might even push their income high enough to trigger increased Medicare premiums (known as IRMAA).

That’s why it’s so important for retirees to understand what options they have to help reduce the tax impact of these lump-sum payments and keep more of their benefits in their pocket.

Here’s an overview of strategies that can help federal retirees manage these retroactive payments and avoid unwelcome surprises during tax season.

1. Using the SSA-44 to Adjust IRMAA

The Income-Related Monthly Adjustment Amount (IRMAA) for Medicare can increase if your income exceeds certain thresholds. If a retiree’s income in 2025 is expected to be significantly lower than it is in 2024, they may be able to use Form SSA-44 to request a reduction in their IRMAA. This form allows individuals to report a life-changing event, such as a significant drop in income, and potentially lower their Medicare premiums in future years. (Speak with your tax advisor on when and how to submit this application.) However, this form can only be filed two years after the income in question (i.e., for income in 2025, the form could be filed in 2027).

2. Delaying or Reducing Retirement Asset Withdrawals

Federal retirees may also consider delaying or reducing their retirement asset withdrawals in order to offset the impact of the additional income received from SSA retroactive payments. If a retiree’s income spikes temporarily, they may want to minimize the amount they take from retirement accounts (such as IRAs or 401(k)s) to avoid further increasing their taxable income for the year.

3. Making Charitable Donations

For those who are over 70.5, making charitable contributions can be a powerful strategy for reducing taxable income. This can be done through Qualified Charitable Distributions (QCDs), where retirees can directly donate a portion of their IRA withdrawals to a qualified charity without increasing their taxable income. Additionally, retirees can donate appreciated stock to charity, which not only reduces their taxable income but also avoids capital gains tax.

4. Tax-Loss Harvesting

If a retiree has investments in taxable accounts, tax-loss harvesting can help offset gains by selling losing investments to reduce taxable income. Up to $3,000 in losses can be deducted from other income each year. By carefully managing their taxable investment accounts, retirees can help minimize the impact of the SSA retroactive payments and potentially reduce their overall tax burden.

5. Making Estimated Payments to the IRS

One important reminder for retirees is to ensure withholdings are updated or to consider making estimated tax payments to the IRS in advance of tax season. This can help ensure that enough taxes are paid on the lump sum payment to avoid a large tax bill in April.

Federal retirees can file an IRS Form W-4V with SSA to increase the withholding from their Social Security payments. This will ensure that taxes are taken out at a higher rate, potentially avoiding underpayment penalties and reducing the overall tax burden at the end of the year.

Conclusion

For most Feds, receiving these retroactive payments is a welcome boost. As you can see, with the right strategies, you can reduce the tax impact and keep your financial plan on track. 

But here’s the catch: timing and strategy matter. That’s where having an experienced financial planner and a tax professional really pays off. Someone who understands the ins and outs of federal benefits and tax planning can help you make smart moves—so you’re not just reacting to a windfall but using it to your long-term advantage.

If you’ve already received retroactive payment, or think you might, it’s a great time to sit down with a planner who knows this space and can tailor a game plan just for you.

Prepare. Plan. Prosper. 

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