Whether your Social Security is taxed depends on your total income, not on Social Security alone

Social Security itself is never taxed at the federal level just because you receive it. But the IRS counts it as income when you file your tax return, and if your total income crosses certain thresholds, you'll owe tax on a portion of your benefits. The threshold is low — between $25,000 and $34,000 for single filers, depending on what else you earned that year — so many people do end up paying tax on some of their Social Security.

The amount you pay tax on is not the full benefit. The IRS uses a formula that taxes either 50% or 85% of your benefits, depending on how much your other income was. Most people in this situation pay tax on roughly half of what they received.

Some states do not tax Social Security at all, regardless of your income. Others tax it the same way the federal government does. A few states have their own thresholds that differ from the federal ones.

Key Takeaways

  • Social Security benefits themselves carry no federal tax, but they count as income on your tax return if your total income is above $25,000 (single) or $32,000 (married filing jointly).
  • If you cross the threshold, you pay federal income tax on 50% to 85% of your benefits, not on the full amount.
  • Your state may not tax Social Security at all, may tax it like the federal government does, or may have different income thresholds — check your state's rules.
  • The IRS formula that determines how much of your benefit is taxable uses "combined income," which includes wages, interest, dividends, and half of your Social Security benefit itself.

How the IRS calculates combined income

The IRS does not straightforward add up your wages and Social Security. Instead, it uses a number called combined income, which is calculated this way: take your adjusted gross income (wages, interest, dividends, and other income), add half of your Social Security benefits, and add any tax-exempt interest you earned. That total is what determines whether you owe tax on your benefits.

For example, if you earned $20,000 in wages and received $15,000 in Social Security, your combined income is $20,000 + (half of $15,000) = $27,500. Since that exceeds $25,000 for a single filer, some of your benefits are taxable.

This formula means that even small amounts of other income can push you over the threshold. A part-time job, pension, interest from savings, or rental income all count. Tax-exempt municipal bond interest counts too, even though you do not pay tax on it directly.

The federal tax brackets for Social Security

Once you know your combined income, the IRS applies two thresholds. If you are single, the first threshold is $25,000. If you are married filing jointly, it is $32,000. If you are married filing separately, it is $0 — meaning some of your benefits are almost always taxable.

If your combined income is below your threshold, none of your Social Security is taxable. If it is above the threshold but below a second, higher threshold ($34,000 for single filers, $44,000 for married filing jointly), you pay tax on up to 50% of your benefits. If it is above the second threshold, you pay tax on up to 85% of your benefits.

The actual amount taxed is the smaller of either the percentage listed above or the amount that would result from a specific formula the IRS publishes each year. In practice, most people pay tax on roughly 50% of their benefits if they cross the first threshold.

Which states do not tax Social Security

Thirteen states do not tax Social Security benefits at all: Alabama, Alaska, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Mississippi, Missouri, and Nevada. If you live in one of these states, you owe no state income tax on your Social Security, regardless of how much other income you have.

Most other states follow the federal formula — they tax Social Security only if your combined income exceeds the federal thresholds. A handful of states have their own thresholds or rules. Connecticut, for instance, does not tax Social Security for people over 55. Montana taxes it but allows a deduction. Kansas and Oklahoma tax it but exempt it for people over a certain age.

Your state's tax department website lists the rules for your state. If you moved to a new state after you started receiving Social Security, check the rules there before filing.

How to report Social Security on your tax return

Social Security benefits appear on a form called the SSA-1099, which you receive in January each year. This form shows the total benefits you received in the previous year. You do not send this form to the IRS, but you use the numbers on it to fill out your tax return.

If you file Form 1040 (the main individual income tax form), you report your Social Security on lines 5a and 5b. Line 5a is the total from your SSA-1099. Line 5b is the taxable portion, which you calculate using a worksheet the IRS provides with the form instructions. If you use tax software, it walks you through this calculation.

If your only income is Social Security and it is below the threshold, you may not need to file a return at all. The IRS has minimum filing requirements based on age and income type. Check the IRS website or ask a tax professional whether you are required to file.

What happens if you work while receiving Social Security

If you are under your full retirement age and you earn wages, Social Security reduces your benefit by $1 for every $2 you earn above an annual limit. For 2024, that limit is $23,400 (the limit changes each year). Once you reach your full retirement age, the reduction stops, and you keep your full benefit no matter how much you earn.

This earnings limit is separate from the tax calculation. Even if your earnings reduce your benefit, the reduced amount still counts as income for tax purposes. The combined income formula still applies.

If you are self-employed, your net profit counts as earnings. Rental income, interest, and dividends do not count toward the earnings limit, but they do count toward combined income for tax purposes.

Planning to reduce taxes on Social Security

If you are close to the income threshold, a few strategies may lower the amount of your benefits that are taxable. Delaying Social Security means you receive a higher benefit later, but it also means lower combined income now. Contributing to a traditional IRA (if you are not covered by a workplace retirement plan) reduces your adjusted gross income. Timing the sale of investments or bunching deductible expenses into one year can also help.

These strategies work best if you plan ahead with a tax professional. Once the year is over and you have already received your benefits and earned your income, your options are limited. A tax professional or financial advisor can model different scenarios to see which approach saves you the most.

If you are already retired and have little control over your income, you may straightforward owe tax on your benefits. That is not unusual — it does not mean you made a mistake or that you should have done something differently.

Frequently Asked Questions

If I have not worked in years and only receive Social Security, do I owe tax on it?

Only if your combined income exceeds the threshold for your filing status. Combined income includes half your Social Security benefit itself, so a single person with $15,000 in Social Security and no other income has combined income of $7,500 — well below the $25,000 threshold. You would owe no federal tax. Check your state's rules separately.

Does the tax on Social Security explore to Supplemental Security Income (SSI)?

No. SSI is a needs-based program for people with low income and assets. It is not taxable at the federal level and does not count toward the combined income threshold. Only Social Security retirement, survivor, and disability benefits are subject to this tax.

What if I receive Social Security from more than one source?

Add all your Social Security benefits together when calculating combined income. If you receive retirement benefits and survivor benefits, or if you receive benefits from a spouse's record and your own, the IRS counts the total. The SSA-1099 you receive shows all benefits paid to you in one year.

Can I avoid the tax by not cashing my Social Security check?

No. The IRS counts Social Security as income in the year you are may have access to to it, whether or not you actually receive the money. If you want to reduce your combined income, you would need to reduce other income or delay claiming Social Security altogether.

Do I have to pay estimated tax on Social Security if I know some of it will be taxable?

You can, but you do not have to. Instead, you can ask Social Security to withhold federal income tax from your monthly benefit. Complete Form W-4V and send it to your local Social Security office. You choose the withholding amount — 7%, 10%, 12%, or 22% of your benefit. This spreads the tax payment across the year instead of owing it all at tax time.