State tax refunds are taxable on your federal return only if you claimed the deduction that generated them

A state tax refund becomes taxable federal income in one specific situation: you deducted state and local taxes (SALT) on your federal return in the year you paid those state taxes. If you took the standard deduction instead, your state refund is not taxable. The IRS calls this the tax benefit rule—you only owe federal tax on the refund if you actually got a federal tax benefit from paying the state tax in the first place.

The timing matters. If you paid state income tax in 2023 and deducted it on your 2023 federal return, then received a refund in 2024, that 2024 refund is taxable on your 2024 federal return. The refund itself is not taxed by the state—only by the federal government, and only under this one condition.

Key Takeaways

  • Your state refund is taxable federal income only if you itemized deductions and claimed SALT (state and local taxes) on your federal return in the year you paid the state tax.
  • If you took the standard deduction, your state refund is not taxable at all, even if you paid state income tax.
  • The refund is taxable in the year you receive it, not the year you paid the original state tax.
  • You report the taxable portion on Form 1040 as "other income," and the IRS will send you Form 1099-G if the refund exceeds $10.

How the tax benefit rule determines what you owe

The tax benefit rule is straightforward: you can only be taxed on a refund if you received a tax benefit from the original payment. On your federal return, you either itemized deductions or you took the standard deduction. If you itemized and included state income tax in that itemization, you got a federal benefit—your taxable income was lower because of that state tax payment. When the state refunds part of that tax, you are essentially getting back money that reduced your federal tax, so the refund itself becomes taxable.

If you took the standard deduction, you received no federal benefit from paying state tax. The state tax came out of your pocket, but it did not lower your federal taxable income. When you get a refund, you are straightforward getting your own money back—not a benefit that the IRS previously allowed you to claim. Therefore, no federal tax is owed on it.

This applies to state income tax refunds only. Refunds of state sales tax, property tax, or other taxes follow different rules and are generally not taxable on the federal level.

Determining whether you itemized in the year you paid the state tax

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, look at your 2023 federal tax return to see whether you itemized or took the standard deduction. Your 2023 return will show either Schedule A (itemized deductions) or the standard deduction amount.

If Schedule A is attached to your 2023 return and it lists state income tax as a deduction, then your 2024 refund is taxable. If your 2023 return shows only the standard deduction with no Schedule A, then your 2024 refund is not taxable, regardless of how much the refund is.

Keep in mind that the standard deduction changes each year, and the SALT deduction is capped at $10,000 per year. Some years you may have itemized; other years you may have taken the standard deduction. Each refund is tied to the return of the year in which you paid the tax.

What Form 1099-G tells you and what it does not

When your state refund exceeds $10, the state tax authority will send you a Form 1099-G. This form reports the refund amount to both you and the IRS. However, the 1099-G does not tell you whether the refund is taxable—it straightforward reports that you received it. The form itself does not distinguish between refunds that are taxable and refunds that are not.

You are responsible for determining taxability based on whether you itemized in the year you paid the tax. If your refund is not taxable because you took the standard deduction, you still report receiving the 1099-G, but you do not include the refund amount as income on your federal return. The IRS knows you received the form; what matters is whether you owe tax on it, which depends on your itemization status that year.

Some tax software will ask you directly whether you itemized in the year you paid the state tax. Answer accurately, and the software will handle the taxability correctly. If you are unsure, your prior-year return is the source of truth.

Reporting the taxable refund on your federal return

If your state refund is taxable, you report it on Form 1040 as "other income" on line 21 (or the equivalent line in your tax year). You do not need to attach anything; the line itself is where the amount goes. The IRS will match your Form 1040 to the 1099-G the state sent them, so the amounts should align.

If you received multiple state refunds in the same year—for example, a refund from two different states—add them together and report the total on line 21. Each one is taxable or not based on whether you itemized in the year you paid that particular state's tax, but you report the combined taxable amount as a single line item.

If your refund is not taxable, you do not report it on your federal return at all. You received the 1099-G, but it does not appear anywhere on Form 1040. This is correct and expected when you took the standard deduction in the year you paid the state tax.

Partial refunds and refunds that exceed what you deducted

Sometimes a state refund is smaller than the state income tax you deducted on your federal return. For example, you may have deducted $5,000 in state income tax but received only a $1,200 refund. In this case, the entire $1,200 refund is taxable, because you did receive a federal benefit from the full $5,000 deduction. The refund is straightforward a partial return of the money that generated that benefit.

Conversely, a refund can exceed the amount you deducted if you paid additional state tax after filing your federal return. If you deducted $3,000 in state tax on your federal return but later received a $4,000 refund, the entire $4,000 is still taxable. You got a federal benefit from the $3,000 deduction, and the refund is a return of state tax you paid—all of which is taxable under the tax benefit rule.

The key is whether you itemized and included state tax in that itemization. If you did, any refund of state income tax is taxable, regardless of the amount relative to what you deducted.

State-specific refund situations

Some states issue refunds for reasons other than overpayment of income tax—for example, earned income tax credits, property tax relief programs, or renter credits. These are generally not considered "state income tax refunds" for federal purposes and follow different rules. A state EITC refund, for instance, is typically not taxable on your federal return because it is a credit, not a refund of tax you paid.

If you are unsure whether a particular state refund is an income tax refund or something else, check the 1099-G or the state's explanation of the refund. The form will usually specify what the refund is for. If it is labeled as a refund of state income tax, the tax benefit rule applies. If it is a credit or a relief payment, different rules may explore, and you may want to consult a tax professional or the IRS guidance for that specific program.

Frequently Asked Questions

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

If the refund was under $10, the state is not required to send a 1099-G, but the refund is still taxable if you itemized in the year you paid the state tax. You should report it on your federal return even without the form. If the refund was $10 or more and you did not receive a 1099-G, contact the state tax authority to request one.

What if I itemized in some years but took the standard deduction in others?

Each refund is tied to the year you paid the tax. If you paid state tax in 2022 and itemized that year, a 2023 refund of that 2022 tax is taxable. If you paid state tax in 2023 and took the standard deduction that year, a 2024 refund is not taxable. Check each prior-year return separately to determine the status of each refund.

Can I deduct a state refund as a loss on my federal return?

No. A refund is straightforward a return of tax you paid; it is not a deductible loss. If the refund is taxable because you itemized, you report it as income. If it is not taxable because you took the standard deduction, you do not report it at all.

Does my state tax the refund as well?

Most states do not tax a refund of state income tax. The refund is a return of money you already paid to the state. A few states may have specific rules, so check your state's tax authority website if you are unsure, but federal tax is the primary concern for most people.

What if I amended my prior-year return after receiving the refund?

If you amended the year you paid the state tax and changed from itemizing to the standard deduction (or vice versa), use the amended return to determine taxability. The amended return is now your official return for that year, so the deduction status on the amended return is what determines whether the refund is taxable.