State refunds are taxable income to the federal government in the year you receive them, but only if you itemized deductions on your federal return the year you paid the state tax.

This rule exists because of how the federal tax code treats deductions. If you claimed the standard deduction on your federal return last year, your state refund is not taxable to the IRS. If you itemized deductions and included state income taxes paid as part of that itemization, the refund you receive this year counts as taxable income on your federal return.

The logic is straightforward: you got a federal tax benefit (a deduction) from paying state taxes, so when the state gives money back, the IRS treats it as income. If you did not get a federal benefit from paying those taxes in the first place, there is nothing to reverse.

Key Takeaways

  • State income tax refunds are taxable federal income only if you itemized deductions on your federal return in the year you paid the state tax.
  • If you took the standard deduction federally, your state refund is not taxable to the IRS, even if you paid state taxes.
  • You report the refund on line 1 of Schedule 1 (Form 1040) as "other income" in the tax year you receive it, not the year you paid the tax.
  • The IRS will send you a Form 1099-G if your state refund is $10 or more; this form documents the amount for both you and the IRS.
  • If you paid estimated state taxes and received a refund, the same rule applies — only taxable if you itemized federally.

How the Standard Deduction vs. Itemizing Changes the Answer

Most taxpayers use the standard deduction, which is a flat amount the IRS allows you to subtract from income without listing individual expenses. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married filing jointly (these amounts change yearly). If you used the standard deduction, you did not claim state taxes as a deduction, so there is no deduction to reverse when you get a refund.

If you itemized deductions, you listed specific expenses on Schedule A, including state income taxes paid (up to $10,000 per year under current law). That deduction reduced your federal taxable income. When your state refunds part of what you paid, the IRS sees it as a recovery of an expense you already deducted, which makes it taxable income in the year you receive it.

This is called the "tax benefit rule." You received a federal tax benefit from the deduction, so the refund is income. If you did not receive a benefit (because you used the standard deduction), there is nothing to tax.

What Year the Refund Counts as Income

The refund is taxable in the year you receive it, not the year you paid the state tax. If you paid state taxes in 2023 and received a refund in April 2024, the refund is income on your 2024 federal return. This matters because your filing status, income level, or deduction choice might have changed between the two years.

Report the refund on your 2024 Form 1040, Schedule 1, line 1 as "other income." You do not need to file an amended return for the year you paid the tax, even though that is when the deduction appeared.

Form 1099-G and What It Means

If your state refund is $10 or more, your state tax authority will send you a Form 1099-G by January 31 of the following year. This form shows the refund amount in box 1a. The IRS receives a copy, so they will expect to see the income reported on your return.

You must report the amount shown on the 1099-G, even if you believe the refund should not be taxable. If you did not itemize and the refund should not be taxable, you will need to file Form 1040 with an explanation or file an amended return if you already filed. Some tax software flags this situation and walks you through it, but not all do.

Keep the 1099-G with your tax records. If the IRS later questions the income, you will have proof of what was reported to them.

When Part of a Refund Might Not Be Taxable

In rare cases, part of a state refund may not be taxable. This happens when you paid state taxes in multiple years but only itemized in some of them. For example, if you paid $5,000 in state taxes over two years and only itemized in one year, only the portion of the refund attributable to the year you itemized would be taxable.

Calculating this requires tracking which taxes were paid in which year and whether you itemized in each year. Most people do not have this situation, but if you do, you may need to work with a tax professional or contact the IRS directly. The IRS publication 525 covers this in more detail.

Refunds from Estimated State Tax Payments

If you paid estimated state income taxes throughout the year and received a refund, the same rule applies. The refund is taxable federal income only if you itemized deductions on your federal return. The year you paid the estimated taxes does not matter — what matters is whether you got a federal deduction for them.

Estimated tax payments are often made by self-employed people or those with income not subject to withholding. The mechanics are the same: if you itemized and deducted those payments, the refund is taxable. If you used the standard deduction, it is not.

What Happens if You Did Not Report the Refund

If you received a 1099-G and did not report the refund on your federal return, the IRS will likely catch it when they match the 1099-G to your return. They may send you a notice proposing additional tax, interest, and possibly penalties. The penalty for not reporting income is usually 20% of the underpaid tax, though it can be lower if you have reasonable cause.

If you made an honest mistake, you can file an amended return (Form 1040-X) to report the income. Filing an amended return voluntarily before the IRS contacts you may reduce or eliminate penalties. If you believe the refund truly should not be taxable because you did not itemize, you can explain that on the amended return or in a letter to the IRS.

Frequently Asked Questions

Do I have to report a state refund if I did not get a 1099-G?

If your refund was less than $10, your state may not send a 1099-G, but you still must report it if you itemized deductions federally. The IRS may not know about it, but the tax law still applies. Conversely, if you used the standard deduction, you do not report it regardless of whether you receive a 1099-G.

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

If you received a state refund in 2024 for taxes you paid in 2023 when you itemized, the refund is taxable on your 2024 return. The year you paid the tax does not matter — only whether you itemized in the year you paid it. Report it on your 2024 return.

Can I deduct a state tax refund?

No. A refund is income, not an expense. You cannot deduct it. If the refund is taxable, you report it as income. If it is not taxable (because you used the standard deduction), you do not report it at all.

Does a state refund affect my federal tax refund?

Not directly. Your federal refund is based on your total federal tax liability for the year. If the state refund is taxable, it increases your federal income, which may increase your tax liability and reduce your federal refund. But the state refund itself does not go to the IRS.

What if I owe state taxes in one year and get a refund in another?

Each year stands alone. If you owed state taxes in 2023 and got a refund in 2024, the refund is taxable federally (if you itemized in 2023) regardless of whether you owe in 2024. The two years do not offset for federal tax purposes.