State tax refunds are taxable income on your federal return only if you deducted state taxes on your federal return the year you paid them
The rule is straightforward: if you claimed the state and local tax deduction (SALT) on your federal return in the year you paid the state taxes, then the refund you receive counts as taxable income on your federal return in the year you get it. If you did not deduct those state taxes—either because you took the standard deduction instead or because you fell below the threshold to itemize—then the refund is not taxable federally.
This is called the tax benefit rule. You cannot deduct a tax payment and then receive the refund tax-free. The IRS treats the refund as recovery of a deduction you already claimed, which means it becomes income in the year the refund arrives.
State tax refunds do not automatically appear on your federal return. You have to report them yourself on Form 1040, line 1, as "other income." The IRS does not receive a copy of your state refund notice, so they will not catch it if you omit it—but omitting it is underreporting income and can trigger an audit.
Key Takeaways
- A state tax refund is taxable on your federal return only if you deducted state income taxes on that same federal return the previous year.
- If you took the standard deduction instead of itemizing, your state refund is not taxable federally.
- You report the refund on Form 1040, line 1, in the tax year you receive it, not the year you paid the original state taxes.
- The IRS does not automatically know about your state refund, but reporting it correctly protects you from audit risk.
How the tax benefit rule works with state refunds
The tax benefit rule exists because the tax code does not allow you to get a tax advantage twice from the same dollar. When you paid state income tax in 2023 and deducted it on your 2023 federal return, you reduced your federal taxable income. If you then received a refund of that same state tax in 2024, allowing you to keep the refund tax-free would mean you got a federal tax benefit from money you never actually paid out.
The rule applies only to the portion of the refund that relates to taxes you actually deducted. If you paid $8,000 in state taxes but only deducted $5,000 of them (because of the SALT cap or other limits), then only the portion of the refund tied to that $5,000 is taxable. In practice, most people do not track this precisely, and the IRS generally accepts a reasonable estimate or the full refund amount if you deducted all your state taxes.
The timing matters: you report the refund in the year you receive it, not in the year you paid the original state taxes. If you paid state taxes in 2023 and got a refund in 2024, the refund is reported on your 2024 federal return.
When a state refund is not taxable federally
If you took the standard deduction on your federal return instead of itemizing, your state tax refund is not taxable. The standard deduction is a flat amount (for 2024, $14,600 for single filers, $29,200 for married filing jointly) that you can claim without listing individual deductions. Most taxpayers use the standard deduction because it is larger than their itemized deductions would be.
You also avoid federal tax on a state refund if you did not deduct state taxes for some other reason—for example, if your state has no income tax, or if you paid state taxes but chose not to deduct them. In these cases, there is no prior federal tax benefit to recover, so the refund is yours to keep.
Some people also receive refunds because they overpaid estimated state taxes or had too much withheld from their paychecks. These refunds follow the same rule: taxable federally only if you deducted the original state taxes.
The SALT cap and how it affects refund taxability
The SALT cap limits the amount of state and local taxes you can deduct on your federal return to $10,000 per year (or $5,000 if married filing separately). This cap has been in place since 2018 and is set to expire after 2025, though Congress may extend it.
If you paid $12,000 in state income taxes but could only deduct $10,000 because of the SALT cap, and you later received a $2,000 refund, the taxability is split. The $1,667 of the refund that relates to your deducted $10,000 is taxable federally. The $333 that relates to the $2,000 you could not deduct is not taxable. Again, most people do not calculate this precisely, and the IRS generally accepts the full refund as taxable if you hit the SALT cap.
After 2025, if the SALT cap expires, more of your state taxes may become deductible, which would change how much of future refunds are taxable. This is one reason to keep records of how much state tax you actually paid and how much you deducted each year.
How to report a state tax refund on your federal return
You report a state tax refund on Form 1040, line 1, labeled "Other income." You do not need a separate form or schedule; the line is designed for this exact situation. Write "State tax refund" next to the amount so the IRS knows what it is.
If you received refunds from multiple states, add them together and report the total on line 1. If the refund is very small (under $25), some people choose not to report it, but technically it should be reported. The risk of audit over a small amount is low, but the correct approach is to include it.
You will not receive a Form 1099 or any IRS document for the refund. The state sends the refund to you, not to the IRS. This means you are responsible for reporting it. If you use tax software, many programs will ask you whether you received a state refund and handle the reporting for you.
What to do if you are unsure whether you deducted state taxes
If you do not remember whether you itemized and deducted state taxes on your prior-year return, check your copy of that return. Look for Schedule A (Form 1040), which is where itemized deductions appear. If Schedule A shows a line for "State and local income taxes," you deducted them, and your refund is taxable.
If you filed electronically and do not have a copy, you can retrieve your prior-year return from the IRS using Form 4506-C or by creating an account on IRS.gov and viewing your transcript. The transcript shows the key numbers from your return, including whether you itemized and how much you deducted.
If you took the standard deduction, Schedule A will not appear on your return at all. In that case, your state refund is not taxable federally, and you do not report it on Form 1040.
State tax on the refund itself
A state tax refund is generally not subject to state income tax in the state that issued it. Most states follow the same tax benefit rule at the state level, but they typically do not tax the refund itself because you already paid the tax and are receiving your own money back.
However, if you moved to a different state between paying the tax and receiving the refund, or if you have income in multiple states, the rules can be more complex. Check with the state that issued the refund or consult a tax professional if your situation involves multiple states.
Frequently Asked Questions
Do I have to report a small state tax refund?
Technically yes, even small refunds should be reported on Form 1040, line 1. The IRS does not automatically know about it, and underreporting income can trigger an audit. That said, the audit risk for amounts under $25 is very low in practice.
What if I received a state refund but did not file a federal return that year?
If you had no federal tax filing requirement (your income was below the threshold), you generally do not need to file a federal return for the refund alone. However, if you had other income or tax situations that required a return, the refund should be included.
Can I deduct a state tax refund as a loss?
No. A refund is treated as income recovery, not a loss. You cannot deduct it or use it to offset other income. You report it as income on line 1 of Form 1040.
If the SALT cap expires, will my old refunds become taxable again?
No. The tax benefit rule applies to the year the refund is received. If you received a refund in 2024 and reported it as taxable, it stays taxable even if tax law changes later. The change would only affect refunds you receive in future years.
What if my state refund was applied to next year's taxes instead of sent to me?
If your state automatically applied the refund to your next year's estimated taxes or balance due, you still report it as income in the year it was issued, not when you would have received it. Check your state tax notice to see the date the refund was processed.