State tax refunds are taxable income to the federal government if you itemized deductions the year you paid the state tax
Whether your state income tax refund counts as taxable income depends on one thing: did you itemize deductions on your federal return for the year you paid that state tax? If you did, the refund is taxable federal income in the year you receive it. If you took the standard deduction instead, the refund is not taxable.
This rule exists because of how the federal tax code treats state and local tax deductions. When you itemize, you deduct the state income tax you paid during that year. When you get a refund the next year, the IRS treats it as money you didn't actually pay — so it becomes income to you now. The standard deduction filer never deducted the state tax in the first place, so there is nothing to reverse.
The refund amount that is taxable is only the portion that reduced your federal taxable income the previous year. If you paid $5,000 in state tax but only $3,000 of it was deductible (because of the $10,000 cap on state and local tax deductions), only the $3,000 refund would be taxable.
Key Takeaways
- State tax refunds are federal taxable income only if you itemized deductions on your federal return for the year you paid the state tax.
- If you took the standard deduction, your state refund is not taxable to the federal government.
- The taxable amount is limited to the state tax deduction you actually claimed — not the full refund if you hit the $10,000 state and local tax cap.
- You report the refund on your federal return in the year you receive it, not the year you paid the original state tax.
- State governments do not tax their own refunds, so you owe nothing to your state on the money it sends back to you.
How the itemization rule works in practice
The federal tax code allows you to deduct either state and local taxes (SALT) or take the standard deduction, but not both. Most people take the standard deduction because it is larger. In 2024, the standard deduction is $14,600 for single filers and $29,200 for married filing jointly.
If your state and local taxes (income tax, property tax, and sales tax combined) exceed the standard deduction, you itemize instead. When you do, you list each deduction on Schedule A. The state income tax you paid that year goes on that form. When you get a refund of that state tax the following year, the IRS sees it as a recovery of a deduction you claimed — which means it becomes income to you now.
Example: You are married filing jointly in 2023. Your state income tax was $8,000, your property tax was $4,000, and you had $500 in sales tax. That is $12,500 total SALT, which exceeds the $10,000 cap. You can only deduct $10,000. In 2024, you get a $500 state refund. That $500 is taxable federal income on your 2024 return because it came from state tax you deducted in 2023.
The $10,000 state and local tax cap and refunds
Federal law caps the total deduction for state and local taxes at $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 your state income tax alone exceeds $10,000, you can only deduct $10,000 total for all state and local taxes combined. When you get a refund, only the portion that was actually deductible becomes taxable income. If you paid $12,000 in state income tax but could only deduct $10,000 because of the cap, and you receive a $1,000 refund, that $1,000 is taxable because it came from the $10,000 you deducted.
Tracking this requires keeping records of what you deducted on Schedule A. The IRS does not automatically know how much of your state tax refund was deductible versus over the cap. You are responsible for calculating the taxable portion.
Reporting the refund on your federal return
State tax refunds are reported on Form 1040, line 1 (labeled "State income tax refund"). You enter the refund amount there only if it is taxable — meaning you itemized in the year you paid the state tax.
The IRS will send you a Form 1099-G if your refund is $10 or more. This form shows the refund amount and the year it was issued. You use this form to fill in line 1 of your 1040. If you did not receive a 1099-G but received a refund, you still report it if it is taxable.
You report the refund in the year you receive it, not the year you paid the original state tax. If you paid state tax in 2023 and received the refund in 2024, you report it on your 2024 federal return.
State governments do not tax their own refunds
Your state does not tax the refund it sends you. When you receive a state income tax refund, it is not subject to state income tax. The money is yours to keep without any state tax obligation on the refund itself.
This is different from the federal treatment. The federal government taxes the refund because it is reversing a deduction you claimed. States do not use the same logic — they simply return overpaid tax without taxing the return.
What happens if you took the standard deduction
If you took the standard deduction in the year you paid the state tax, your state refund is not taxable federal income. You do not report it on your federal return at all.
This is true even if the refund is large. The IRS does not tax refunds of taxes you never deducted. Since you took the standard deduction instead of itemizing, you never claimed a state tax deduction to reverse, so the refund creates no federal tax liability.
You may still receive a Form 1099-G showing the refund amount. If you took the standard deduction, you ignore this form for federal tax purposes — you do not report the refund on line 1 of your 1040.
Frequently Asked Questions
Do I have to report my state tax refund if I took the standard deduction?
No. State tax refunds are only taxable federal income if you itemized deductions on your federal return for the year you paid the state tax. If you took the standard deduction, do not report the refund on your federal return.
What if I am not sure whether I itemized or took the standard deduction?
Look at your prior-year federal tax return. If you filed Form 1040-A or 1040-EZ, you took the standard deduction. If you filed Form 1040 with Schedule A attached, you itemized. Your tax software or tax preparer can also tell you which method you used.
If my state refund is taxable, do I owe estimated taxes on it?
No. Estimated taxes are for income you expect to receive during the year. A refund you receive is reported on your return for that year. You pay the tax when you file, not in advance through estimated payments.
Can I deduct my state tax refund from my state taxes?
No. States do not allow you to deduct refunds you received. The refund is simply a return of overpaid tax — it does not create a deduction or credit on your state return.
What if I received a refund but did not get a Form 1099-G?
You still report the refund on line 1 of your 1040 if it is taxable. The 1099-G is a reporting document, but its absence does not change your tax obligation. If you itemized and received a state refund, report it even without the form.