The Social Security 'Tax Torpedo' That's Quietly Hitting More Retirees Every Year (Are You Next?)

A little more income in retirement can feel like a win, but it can come with a surprise at tax time. Once your income crosses certain limits, more of your Social Security can become taxable, leaving you with a bigger bill than you expected.

The problem is those limits have been frozen for decades, even as Social Security benefits and other income have risen.

More retirees are crossing them as a result, so if you are trying to save money in retirement, knowing how close you are could help you avoid an expensive surprise when you file.

How Social Security taxes are calculated

The IRS uses a figure called provisional income to determine how much of your Social Security benefits can be taxed. It generally includes your other taxable income, tax-exempt interest, and half of your Social Security benefits.

Your filing status determines which income thresholds apply:

• Single filers: Below $25,000, your Social Security generally is not taxable. Between $25,000 and $34,000, up to 50% can be taxable. Above $34,000, up to 85% can be taxable.
• Married couples filing jointly: The thresholds are $32,000 and $44,000.

Crossing one of these thresholds can gradually pull more of your Social Security into taxable income.

Why extra retirement income can raise your tax bill faster

Suppose you withdraw an extra $1,000 from your IRA. The IRS counts that $1,000 as income, and the withdrawal can also cause more of your Social Security to become taxable.

In part of the 85% range, that $1,000 withdrawal can add as much as $1,850 to your taxable income. At a 22% federal tax rate, that could create roughly $407 in additional federal income tax.

This is the "tax torpedo," where a relatively small IRA withdrawal can trigger a much larger tax increase by making more of your Social Security taxable.

Old tax limits are pulling more Social Security into taxable income

Congress created the Social Security tax thresholds in 1983 and 1993, and they have never been adjusted for inflation.

Back in 1984, fewer than 10% of beneficiaries owed federal income tax on their Social Security. CBO now estimates that just over half of Social Security beneficiaries could pay tax on at least some of their benefits in 2026.

Annual COLAs can slowly push your provisional income higher, and withdrawals from retirement accounts can add even more. Over time, that makes it easier to cross the line even if your buying power has barely changed.

You can end up paying tax on more of your Social Security simply because your income has risen with inflation while those old thresholds have not.

A new senior tax break only lasts through 2028

Congress added a new tax break for older Americans in 2025, giving eligible people age 65 and older up to a $6,000 deduction. According to the White House Council of Economic Advisers, 88% of seniors receiving Social Security could end up owing no federal income tax on their benefits once this and other deductions are included.

That said, the deduction can lower your tax bill, but it does not change the formula that makes Social Security taxable. It is also scheduled to expire after 2028, leaving the decades-old rules in place unless Congress changes them.

What can you do before withdrawals push your taxes higher?

Keeping your provisional income lower can reduce how much of your Social Security becomes taxable. A few planning moves can help:

• Consider Roth conversions before claiming Social Security: Moving money from a traditional IRA or 401(k) into a Roth means paying tax on the conversion. Qualified Roth withdrawals later generally do not count toward provisional income, which can help keep more of your Social Security out of taxable income.
• Be thoughtful about when you take withdrawals: If you have flexibility, spreading withdrawals across different years can help you avoid pushing too much income into the Social Security tax phase-in range at once.
• Use qualified charitable distributions if you already give to charity: A QCD lets eligible IRA owners send money directly to a qualified charity, and the amount can count toward a required minimum distribution without being included in taxable income.

The right mix will depend on your income and retirement accounts, so planning withdrawals before tax season can give you more control over how much of your Social Security ends up taxable.

Your tax return can reveal whether you're nearing the line

You can get a quick idea of where you stand using last year's tax return or the income you expect this year. Add your adjusted gross income, any tax-exempt interest, and half of your annual Social Security benefit to estimate your provisional income.

Once you have that number, compare it against the thresholds for your filing status ($25,000 and $34,000 for single, $32,000 and $44,000 for married joint). Falling between the two thresholds puts you in the 50% zone, where up to half of your Social Security can be taxable. Once you move above the higher threshold, up to 85% can be taxable.

If you are below the first threshold, it is still worth seeing how close you are. Future COLAs or larger retirement-account withdrawals could eventually push your income across the line.

IRS Publication 915 has a worksheet that can help you run the numbers. A tax professional can also show you how different withdrawal choices could affect your Social Security taxes.

Bottom line

As your retirement income rises, more of your Social Security can become taxable. Knowing how close you are to the income limits can help you make the right moves before extra withdrawals raise your tax bill.

The key is to pay attention to where your income is coming from and how much you take out each year. With a little planning, you can keep more of your retirement income and avoid giving the IRS more than you need to.

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