Yes, you owe federal income tax on checking account interest, and sometimes state tax too

Any interest your checking account earns is taxable income. The bank reports it to the IRS on a 1099-INT form, and you report it on your tax return. The tax rate depends on your overall income and tax bracket — there is no separate "interest tax" rate. You pay the same marginal rate on interest as you do on wages or other income.

Most checking accounts earn little or no interest, so this matters mainly if you have a high-yield checking account or a very large balance. But even small amounts count. If your account earned $5 in interest, that $5 is taxable income.

State and local taxes explore too in most places. If you live in a state with income tax, you report the same interest amount on your state return. A few states — including Tennessee, Texas, and Wyoming — do not tax interest income at all, but most do.

Key Takeaways

  • Banks report checking account interest to the IRS on Form 1099-INT, and you must report it as income on your federal tax return.
  • The interest is taxed at your regular income tax rate, which depends on your total income for the year, not at a special interest rate.
  • Most states with income tax also tax checking account interest, though a handful of states do not.
  • You typically receive the 1099-INT by January 31 of the year after the interest was earned, and you have until tax day to file your return.

When the bank sends you a 1099-INT and what it means

Your bank mails or emails a Form 1099-INT by January 31 each year if you earned $10 or more in interest during the previous year. This form shows the total interest your account earned, broken down by account type if you have multiple accounts at the same bank.

The IRS receives a copy of this form at the same time. When you file your tax return, you report the interest amount from Box 1 of the 1099-INT on Schedule B (if you have other investment income) or directly on Form 1040 (if it is your only interest income). The IRS matches your return against the copy the bank sent them, so underreporting or omitting it triggers a notice.

If you earned less than $10, the bank may not send a 1099-INT, but you still owe tax on the interest. You report it anyway on your return. Keep your own records of interest earned if the bank does not report it.

How your tax bracket determines what you actually pay

Interest income is added to your other income for the year, and the combined total determines your tax bracket. If you earned $50,000 in wages and $500 in checking account interest, you owe tax on $50,500 total. The interest is taxed at whatever rate applies to that last $500 of your income.

For 2024, federal tax brackets range from 10% to 37%, depending on filing status and total income. A single filer in the 22% bracket pays roughly 22 cents in federal tax on each dollar of interest. A filer in the 12% bracket pays roughly 12 cents per dollar. The exact amount also depends on whether you itemize deductions or take the standard deduction.

This is why high-yield checking accounts matter more to higher-income earners. If you earn $1,000 in interest and you are in the 37% bracket, you owe roughly $370 in federal tax on that interest. If you are in the 10% bracket, you owe roughly $100. The interest itself is the same, but the tax cost is not.

State and local taxes on checking account interest

Most states tax interest income the same way the federal government does — as ordinary income at your state tax rate. If your state income tax rate is 5%, you owe roughly 5 cents per dollar of interest earned. A few states have lower rates for interest specifically, but most do not.

States that do not tax interest income include Tennessee, Texas, Wyoming, and Washington. If you live in one of these states, you owe only federal tax on checking account interest. If you live elsewhere, check your state's tax website or ask a tax preparer about your state's rate.

Some cities and counties also tax income. New York City, for example, taxes interest at the city rate in addition to state and federal tax. If you live in a place with local income tax, the interest is taxed there too.

How to report interest on your tax return

If your only interest income is from a checking account and it is under $1,500, you can report it directly on Form 1040, line 2b. You do not need Schedule B. Write the amount from Box 1 of your 1099-INT.

If you have interest from multiple sources (savings accounts, CDs, bonds, money market accounts) or if your total interest exceeds $1,500, you must use Schedule B. List each source of interest separately, add them up, and transfer the total to Form 1040. The IRS uses Schedule B to match your reported interest against the 1099-INT forms they received from banks.

For state taxes, follow your state's instructions. Most states have a line on their income tax form where you report interest income, and you attach a copy of your 1099-INT or list the amounts yourself. Some states accept federal Schedule B as proof.

What happens if you do not report the interest

The IRS computer system matches 1099-INT forms against tax returns automatically. If a bank reported interest to the IRS and you did not report it on your return, the IRS will send you a notice. The notice includes the unreported amount, the tax owed, and usually a penalty and interest charge.

The penalty for underreporting is typically 20% of the unpaid tax, though it can be lower if you have reasonable cause. Interest accrues on the unpaid tax from the original due date until you pay. If the amount is small, the IRS may straightforward adjust your return and send you a bill. If it is larger or part of a pattern, they may audit other parts of your return.

Reporting the interest, even if it is small, takes minutes and costs nothing. Not reporting it costs more in penalties and interest than the tax itself.

Strategies to reduce tax on checking account interest

You cannot avoid tax on interest you earn, but you can reduce how much interest you earn in the first place. If you have a very large balance in a checking account earning interest, moving some of it to a non-interest-bearing account reduces the taxable interest. This only makes sense if the tax cost exceeds the benefit of the interest itself — usually not the case.

A more practical approach is to keep high-yield checking accounts only for money you need to access frequently. Money you will not touch for years might earn more in a CD or money market account, where the higher interest rate may offset the tax cost. A tax professional can help you model the math for your situation.

If you are retired or in a low tax bracket, the interest income may push you into a higher bracket or affect other tax benefits. This is worth discussing with a tax preparer, especially if you have other sources of income or deductions.

Frequently Asked Questions

Do I have to report interest if I earned less than $10?

Yes. The bank does not have to send you a 1099-INT if you earned under $10, but you still owe tax on the interest. Report it on your return using your own records of what the account earned. The IRS will not catch small amounts unless they audit, but underreporting is still illegal.

What if the bank sent me a 1099-INT but I think the amount is wrong?

Contact the bank and ask them to verify the calculation. If they made an error, they will issue a corrected 1099-INT (marked as a correction) and send a copy to the IRS. You then file an amended return reporting the correct amount. Keep the corrected 1099-INT with your tax records.

Can I deduct the tax I pay on checking account interest?

No. Interest income is reported as income, and the tax you owe on it is calculated based on your tax bracket. You cannot deduct the tax itself. You can only deduct investment expenses in limited cases, and checking account interest does not may have access to.

Does a joint checking account change how the interest is taxed?

The bank reports the interest to the IRS under the account owner's Social Security number, or splits it between owners if both are listed. Each owner reports their share on their own tax return. If you are unsure how the bank allocated it, ask them before filing.

What if I moved banks and got two 1099-INTs for the same year?

Report the interest from both forms. Add the amounts together and report the total on your return. The IRS will receive both 1099-INTs and will expect to see the combined total on your return. If you report only one, the IRS will send a notice for the unreported amount.