Most state tax refunds are not taxable, but yours might be
Whether your state tax refund is taxable depends on whether you itemized deductions the year you paid the tax. If you took the standard deduction when you filed, your state refund is not taxable income. If you itemized deductions and claimed a state income tax deduction (or state sales tax deduction), then the refund is taxable in the year you receive it — but only up to the amount of the deduction you claimed.
The IRS calls this the tax benefit rule. The logic is straightforward: if you got a tax benefit from deducting state taxes you paid, you cannot also keep the refund without paying tax on it. You are essentially being taxed on the portion of the refund that gave you a federal tax break.
This rule applies to refunds from state income tax, local income tax, and property tax refunds. It does not apply to refunds of sales tax you deducted, unless your state allows a sales tax deduction instead of an income tax deduction — in which case the same rule applies.
Key Takeaways
- State tax refunds are taxable only if you itemized deductions and claimed state income tax (or sales tax) as a deduction on your federal return.
- The taxable amount is limited to the smaller of your refund or the deduction you claimed — you do not pay tax on the entire refund.
- You report the taxable portion on Form 1040 as "other income" in the year you receive the refund, not the year you paid the tax.
- The Tax Cuts and Jobs Act capped state and local tax deductions at $10,000 per year, which affects how much of your refund may be taxable.
How the tax benefit rule determines what you owe
The tax benefit rule works backward from your deduction. If you claimed $8,000 in state income tax deductions on your federal return and received a $2,500 state refund, the refund is fully taxable because it is less than the deduction. If you claimed $8,000 and received a $10,000 refund, only $8,000 of the refund is taxable.
The rule also has a floor: if your itemized deductions were less than the standard deduction for your filing status that year, you did not actually get a tax benefit from the state tax deduction, so the refund is not taxable. This matters if you itemized but your total itemized deductions fell short. The IRS publishes a worksheet to calculate this, and it is included in the instructions to Form 1040.
You report the taxable portion on your federal return in the year you receive the refund. If you received the refund in 2024, you report it on your 2024 return, even if the tax was paid in 2023. Use line 21 of Form 1040 (Other Income) or follow the instructions that came with your state refund notice.
The $10,000 SALT cap and how it affects your refund
The Tax Cuts and Jobs Act, passed in 2017, capped the deduction for state and local taxes (SALT) at $10,000 per year. This cap applies to the combined total of state income tax, local income tax, and property tax — you cannot deduct more than $10,000 across all three, regardless of what you actually paid.
This cap directly affects how much of your refund is taxable. If you paid $15,000 in state income tax but could only deduct $10,000 because of the cap, and you received a $3,000 refund, only $3,000 is taxable (because your deduction was capped at $10,000, not the full $15,000 you paid). The refund is taxable only to the extent it relates to the deduction you were allowed to claim.
The cap is set to expire at the end of 2025 unless Congress extends it. If it expires, the deduction limit will return to the full amount of state and local taxes paid, which could change how much of future refunds are taxable.
When you took the standard deduction instead
If you took the standard deduction on your federal return, your state refund is not taxable, period. The standard deduction and itemized deductions are mutually exclusive — you choose one or the other. If you did not itemize, you did not claim a state tax deduction, so there is no tax benefit to recapture.
This is the most common situation. Most taxpayers take the standard deduction because it is simpler and often larger than their itemized deductions. If that was you, you do not need to report your state refund as income.
The only exception is if you received a refund of a state tax you paid in a prior year when you did itemize. The tax benefit rule still applies to that refund based on the year you claimed the deduction, not the year you receive the refund.
How to find out what you deducted
Look at your federal tax return from the year you paid the state tax. If you filed Form 1040 with Schedule A (Itemized Deductions), check line 5a (State and Local Income Taxes) or line 5b (Sales Tax) to see what you claimed. That is the number you need to compare against your refund.
If you do not have a copy of your return, you can request a transcript from the IRS. Call 1-800-908-9946 or visit irs.gov and select "Get Your Tax Record." You can also download your return directly from the IRS website if you filed electronically within the last three years. The process takes a few minutes and is free.
Your state tax agency may also send you a notice with your refund that explains whether it is taxable. Some states include this information automatically; others only if you request it. Check the documentation that came with your refund check or direct deposit notification.
Reporting the taxable portion on your return
If part or all of your state refund is taxable, you report it on Form 1040 in the year you receive the refund. The amount goes on line 21 (Other Income). You do not need a separate form — just enter the amount and label it "State tax refund" so the IRS knows where it came from.
If you received a refund from multiple states, or a refund of both income tax and property tax, add them together and report the total taxable amount on line 21. The IRS does not require you to break it down by state or type of tax.
If the refund is small (under $25 or so), some tax software may not prompt you to report it, but you should still include it if it is taxable. Leaving it off is underreporting income, which can trigger a notice from the IRS later.
What happens if you made a mistake on your prior return
If you claimed a state tax deduction on your federal return but later realized you should have taken the standard deduction instead, you can file an amended return. Use Form 1040-X (Amended U.S. Individual Income Tax Return) for the year you filed the original return. This corrects your deduction and may change whether your refund is taxable.
You have three years from the original due date to file an amended return and claim a refund of any overpayment. If you are amending to reduce your deduction, you may owe additional tax on the refund, but you can offset that with any other credits or deductions you missed.
If you received a state refund and did not report it as income when you should have, you can still file an amended return for that year. The IRS generally does not assess penalties if you correct the error within three years, though interest will accrue on any tax owed.
Frequently Asked Questions
Do I have to report my state refund if it is under $100?
Yes, if it is taxable. The amount does not matter — if you itemized deductions and received a refund, you report the taxable portion regardless of size. The IRS does not have a threshold below which refunds are ignored.
What if I received a refund from a state I no longer live in?
The tax benefit rule still applies. If you itemized deductions and claimed that state's income tax in the year you paid it, the refund is taxable in the year you receive it. Your current state of residence does not change this.
Is a property tax refund treated the same way as an income tax refund?
Yes. If you itemized deductions and claimed property tax as part of your SALT deduction, a property tax refund is taxable under the same rule. The taxable amount is limited to the deduction you claimed.
Can I deduct the refund as a loss on my current return?
No. The refund is treated as income, not as a deductible loss. You cannot offset it by claiming a deduction on the same return. The tax benefit rule is one-way — you either got the benefit when you deducted the tax, or you pay tax on the refund.
What if my state refund was for overpaid sales tax instead of income tax?
If you deducted sales tax instead of income tax on your federal return, the same rule applies. The refund is taxable only if you claimed the sales tax deduction and the refund is less than or equal to the deduction you claimed.