Checking account interest counts as taxable income

Any interest your checking account earns is taxable income. The IRS treats it the same way it treats wages or investment returns — you owe federal income tax on it, and depending on where you live, you may owe state income tax too. This is true whether the interest is $2 or $200.

Your bank will track this interest and report it to the IRS on a Form 1099-INT if the total interest you earned across all accounts at that bank reaches $10 or more in a calendar year. You then report that same amount on your federal tax return. If you earned less than $10, the bank does not send a form, but you still owe tax on the interest — you have to report it yourself.

The tax rate you pay depends on your overall income and tax bracket. Interest income is added to your other income for the year, which may push you into a higher bracket. For most people with checking accounts, the interest earned is small enough that it does not meaningfully change their tax situation, but the reporting requirement is absolute.

Key Takeaways

  • Banks report checking account interest of $10 or more per year on Form 1099-INT, which you must include on your tax return.
  • Interest under $10 is still taxable income, but the bank does not send a form — you report it yourself on your return.
  • The interest is taxed at your ordinary income tax rate, which depends on your total income for the year.
  • You receive the 1099-INT by January 31 of the year following the year the interest was earned.
  • If you have multiple accounts at the same bank, the $10 threshold applies to the total interest across all of them.

When the bank sends you Form 1099-INT

Your bank mails or makes available a Form 1099-INT by January 31 each year for any interest earned in the previous calendar year. The form shows the total interest you earned at that bank during that year. If you have accounts at multiple banks, each bank sends its own 1099-INT with only the interest from that bank.

The $10 threshold is per bank, not per account. If you have a checking account and a savings account at the same bank and together they earned $12 in interest, the bank sends one 1099-INT showing $12. If you have accounts at three different banks and each earned $5, none of them send a form, but you still owe tax on all $15.

The bank sends the form to you and also files a copy with the IRS. The IRS uses this to cross-check your tax return. If you report a different amount than what appears on the 1099-INT, or if you do not report it at all, the IRS will notice the discrepancy.

How to report interest on your tax return

If you received a 1099-INT, you report the interest amount on Schedule B (Interest and Ordinary Dividends) if you are filing Form 1040. You enter the total interest from all your 1099-INT forms on one line of Schedule B, then transfer that total to your Form 1040. The interest is added to your other income for the year.

If you earned less than $10 and did not receive a 1099-INT, you still report the interest on Schedule B. You write in the bank name and the amount yourself. The IRS does not know about it unless you tell them, but failing to report it is underreporting income, which can trigger an audit or penalty if discovered.

If your only income is interest and it is under $400, you may not be required to file a tax return at all — but the rules depend on your age, filing status, and whether anyone claims you as a dependent. A tax professional or the IRS website can tell you whether you must file.

Interest rates on checking accounts are usually very low

Most traditional checking accounts at large banks pay little to no interest. Some pay 0.01% annually, which on a $1,000 balance earns about 10 cents a year. You would need to hold a very large balance or use a high-yield checking account to earn enough interest to reach the $10 reporting threshold.

High-yield checking accounts, offered by online banks and some credit unions, may pay 4% to 5% or higher. On a $2,500 balance, that could earn $100 to $125 per year — definitely taxable and definitely reported on a 1099-INT. If you are shopping for a checking account partly for the interest, understand that the tax on that interest will reduce your net gain.

The interest rate also changes over time. When the Federal Reserve raises interest rates, banks raise the rates they pay on deposits. When rates fall, so does the interest you earn. Your 1099-INT will reflect whatever you actually earned in that calendar year, not what you might have earned if rates had been different.

State income tax on checking account interest

Most states that have an income tax also tax interest income the same way the federal government does. You report the interest on your state return as well as your federal return. A few states do not tax interest income at all — currently Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming have no state income tax.

If you live in a state with income tax, the state will receive a copy of your 1099-INT from the IRS or directly from the bank, depending on the state. Failing to report the interest on your state return can result in a state tax bill, penalties, and interest charges.

If you moved during the year or earned interest in a state where you do not live, the rules become more complex. A tax professional can advise you on which state return to file and how to report the income.

What happens if you do not report the interest

If the bank sent a 1099-INT to the IRS with your name and tax ID, and you do not report that same amount on your return, the IRS will eventually notice. The IRS matches 1099 forms to tax returns automatically. A discrepancy can trigger a notice asking you to explain the difference or pay the tax owed plus penalties and interest.

The penalty for underreporting income is usually 20% of the underpaid tax, plus interest calculated from the original due date. If the underreporting was intentional, the penalty can be higher. Even if the interest earned was only $15, the penalty and interest charges can be several times that amount.

If you straightforward forgot to report interest under $10 that the bank did not report either, the risk is lower but not zero. The IRS can still audit your return for other reasons and discover the unreported income. It is safer and simpler to report all interest, no matter how small.

Frequently Asked Questions

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

Yes. The bank only sends a 1099-INT if you earned $10 or more, but you still owe tax on any interest you earned. You report it yourself on Schedule B of your tax return. The IRS does not know about it unless you tell them, but failing to report it is underreporting income.

What if I have accounts at multiple banks?

Each bank sends its own 1099-INT for interest earned at that bank. You add up all the 1099-INT forms and report the total on your tax return. If you earned interest at three banks, you receive three forms and report the total from all three.

Can I deduct anything against the interest income?

No. Interest income is reported as-is. You cannot deduct account fees, minimum balance penalties, or other costs against it. Those expenses may be deductible in other contexts, but not as an offset to interest income.

What if the bank made a mistake on the 1099-INT?

Contact the bank and ask them to issue a corrected form (Form 1099-INT with a "Corrected" box checked). The bank will send the corrected form to you and file it with the IRS. You then report the corrected amount on your tax return. Keep the corrected form with your tax records.

Do I owe taxes on interest if I am a minor?

Yes, but the rules for filing a return are different for dependents. A minor with interest income may be able to file a return and claim a standard deduction that covers the interest, resulting in no tax owed. A parent or tax professional can advise on whether a return is required.