Your state refund is taxable federal income only if you itemized deductions the year you paid the state tax

A state income tax refund is taxable on your federal return only under one condition: you must have itemized deductions on the tax return for the year you paid that state tax. If you took the standard deduction instead, your state refund is not taxable to the IRS, even though your state may have withheld or you may have paid the tax.

This rule exists because of how the tax code treats deductions. When you itemize, you deduct the full amount of state income tax you paid that year. If you then get some of that money back as a refund, the IRS treats the refund as income in the year you receive it — otherwise you would have deducted money you never actually paid out. The refund corrects the overstatement.

The reverse is also true: if you took the standard deduction, you received no tax benefit from paying state tax in the first place, so a refund of that tax is not income to you.

Key Takeaways

  • State income tax refunds are taxable federal income only if you itemized deductions on the return for the year you paid the state tax.
  • You report the refund on Form 1040 as "other income" in the year you receive it, not the year you paid the original tax.
  • If you took the standard deduction in the year you paid state tax, your refund is not taxable federally, though your state may tax it.
  • The amount you report is only the refund itself, not the original state tax payment.
  • Some states do not tax refunds of their own income tax; check your state's rules separately from federal rules.

How to report the refund on your federal return

You report a state income tax refund on Form 1040, Schedule 1, line 1 (Other Income). The line is labeled "State income tax refund" and is designed exactly for this purpose. You enter the amount of the refund you received during the tax year you are filing.

Do not report the original state tax payment. Report only the refund amount. If you received a refund of $800, you report $800, not the $5,000 in state tax you paid the prior year.

You will receive a Form 1099-G from your state if the refund is above a certain threshold (usually $10, though this varies by state). The IRS receives a copy of this form, so the refund should match what you report. If you do not receive a 1099-G but received a refund, you still report it if you itemized.

When you itemized versus when you took the standard deduction

The year that matters is the year you paid the state tax, not the year you received the refund. If you paid state income tax in 2023 and itemized deductions on your 2023 return, then received a refund in 2024, that refund is taxable on your 2024 federal return.

If you paid state income tax in 2023 but took the standard deduction on your 2023 return, then received a refund in 2024, that refund is not taxable on your 2024 federal return, even though you are filing a 2024 return that year.

This distinction matters because some people's tax situations change year to year. You might itemize one year and take the standard deduction the next. Each refund follows the rule for the year the tax was paid.

State tax treatment of your own refund

Federal rules and state rules are separate. Some states do not tax refunds of their own income tax at all. Others treat refunds as income under their own rules, which may differ from federal law.

A few states — including Illinois, Mississippi, and Pennsylvania — do not tax income tax refunds at all. Most other states follow a rule similar to the federal rule: if you deducted state tax on your state return, the refund is income. A handful of states tax all refunds regardless of whether you deducted the original tax.

Check your state's tax authority website or your state tax form instructions to learn how your state treats refunds. You may owe state tax on a refund that is not taxable federally, or vice versa.

What happens if you did not itemize but still received a refund

If you took the standard deduction in the year you paid state tax, you have no federal tax liability on the refund. The IRS will not expect you to report it, and you should not report it on your federal return.

However, if you received a Form 1099-G, the IRS has a record that a refund was issued to you. If you do not report it and the IRS matches the 1099-G to your return, you may receive a notice asking why. You can respond by explaining that you took the standard deduction that year and therefore the refund is not taxable under IRC Section 111.

To avoid confusion, some people attach a note to their return or file Form 886-A (Explanation of Items) explaining that they took the standard deduction. This is optional but can prevent a notice.

The mechanics of the itemization decision

Whether you itemize or take the standard deduction is a choice you make each year on your Form 1040. You compare the total of your itemized deductions (mortgage interest, property taxes, charitable gifts, state income tax, and others) against the standard deduction for your filing status that year.

If your itemized deductions exceed the standard deduction, you itemize. If not, you take the standard deduction. The standard deduction changes each year and varies by filing status and age. For 2024, the standard deduction ranges from $14,600 (single filer) to $29,200 (married filing jointly).

State income tax is one of the deductions you can claim if you itemize. It is not deductible if you take the standard deduction. This is why the refund rule hinges on whether you itemized: the refund is a correction to the deduction you claimed (or did not claim) in the prior year.

Frequently Asked Questions

Do I report the refund in the year I received it or the year I paid the tax?

You report it in the year you received the refund. If you paid state tax in 2023 and received a refund in 2024, you report the refund on your 2024 federal return. The year you paid the original tax determines whether the refund is taxable, but the year you received it determines which return you file it on.

What if I received a refund but did not get a Form 1099-G?

You still report the refund if you itemized in the year you paid the tax. The 1099-G is a record-keeping tool, but the IRS may not issue one if the refund is below the state's threshold. Report the refund based on your own records of what you received.

Can I deduct state income tax on this year's return if I know I will get a refund next year?

Yes. You deduct the full amount of state income tax you paid or expect to pay in the current year, even if you know a refund is coming. When the refund arrives next year, you report it as income. The two transactions are separate and occur in different tax years.

Is my state refund taxable if I live in a state with no income tax?

If your state has no income tax, you would not have paid state income tax and would not receive a refund. However, if you paid income tax to another state (because you worked there or had other income there) and later received a refund, that refund follows the same federal rule: it is taxable only if you itemized deductions in the year you paid that tax.

What if I itemized in 2023 but take the standard deduction in 2024?

A 2023 state refund received in 2024 is still taxable on your 2024 return because you itemized in 2023 (the year you paid the tax). Your 2024 deduction choice does not affect the taxability of a refund from a prior year's tax.