A Little-Known 3-Year Tax Break Retirees Can Use Before It Ends

Taxes are already tricky before retirement, and they can become even more complicated afterward. Without a thoughtful tax plan, retirement mistakes can shrink how long a 401(k) lasts and make it harder to live comfortably in later years.

One new senior deduction, available through 2028, has opened a brief opportunity to lower taxes. That can make it easier to tap retirement savings without being pushed into a higher tax bracket. Here’s how the deduction works, why it may help retirees, and how it can fit into a broader tax strategy.

The three-year window to know about

The “One Big Beautiful Bill,” enacted in 2025, added a temporary $6,000 senior deduction for people age 65 and older. Married couples filing jointly, if both spouses are 65 or older, can claim a total deduction of $12,000.

This creates a three-year opening for seniors to reduce modified adjusted gross income, or MAGI, when filing taxes. For retirees focused on taxes, that can create several meaningful advantages.

How the deduction works

You can claim the full $6,000 deduction if you are at least 65 and have a modified adjusted gross income below $75,000, or below $150,000 for married couples filing jointly.

Above those levels, the deduction is reduced by 6% of the amount over the threshold. In practical terms, that means the deduction falls by $60 for every $1,000 over the limit. It phases out entirely once individual income exceeds $175,000 or joint income exceeds $250,000.

The deduction is available whether you itemize or take the standard deduction. Because it is a below-the-line deduction, eligibility depends on age and income, not on the filing method you choose.

Lower income could also reduce taxes on Social Security

The $6,000 deduction applies to people age 65 and older whether or not they are already receiving Social Security benefits.

It may also help some seniors fall into a tax bracket low enough that they no longer owe income tax on Social Security benefits through 2028.

Using the tax break strategically

In the best case, the extra $6,000 deduction lowers your overall tax bill, not just the tax tied to Social Security, but taxes on other income as well.

That makes this a potentially good time to withdraw money from a traditional IRA and convert it to a Roth IRA. IRA withdrawals raise taxable income, so doing so while you are in a lower bracket can help limit the tax hit. It may also affect your required minimum distribution, or RMD, planning.

Thinking ahead to future RMDs

Once you reach 73, you are generally required to begin taking minimum withdrawals from traditional IRAs and 401(k)s. If you do not, you can face a steep penalty. Those withdrawals are also taxable, and the added income can push you into a higher bracket, which may also cause more of your Social Security income to be taxed.

With the new deduction lowering your current taxable income, you may be able to convert retirement funds to a Roth IRA with less tax pressure. You would also reduce the amount of pre-tax money left in a traditional IRA, which could ease the burden of future RMDs.

Watch for possible Medicare premium increases

A Roth conversion can create tax savings now and help with RMDs later, but it can also raise Medicare premiums down the road.

People on Medicare with income above $109,000, and couples above $218,000, may owe an income-related monthly adjustment amount, or IRMAA, which is an extra surcharge on Medicare Part B premiums.

IRMAA is based on a two-year lookback. If your income in one year crosses the threshold, you could face the higher premium two years later. Because Roth conversions increase taxable income, it is important not to convert so much that your Medicare costs rise by an additional $81.20 to $487 a month later on.

The takeaway

Once taxes enter the picture, it becomes much harder to gauge your real financial position. A bank balance alone does not tell the whole story. A tax professional can help you evaluate Roth conversion strategies and decide how to use the deduction effectively before it expires.

It is also important to remember that this $6,000 deduction is a multi-year opportunity. An accountant can help ensure you capture the tax savings available in the upcoming filing seasons, not just the most recent one, before the deduction disappears.

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