Yes, you owe federal income tax on all savings account interest, no matter how small

The IRS treats savings account interest as ordinary income. If your bank paid you interest during the year, that money is taxable at your regular income tax rate — the same rate you pay on wages or salary. There is no threshold below which interest becomes tax-free, and there is no special low rate for interest income. A savings account earning $5 in interest is taxable the same way as one earning $500.

Your bank will report the interest to the IRS on a Form 1099-INT if you earned $10 or more in interest during the tax year. Even if you earn less than $10 and receive no form, you still owe tax on it — you are responsible for reporting it yourself. The IRS has records of what your bank paid you, so leaving it off your return creates a mismatch that can trigger an audit notice.

State income tax works the same way. If your state has an income tax, you owe state tax on savings interest at your state's ordinary income rate. A handful of states — including Pennsylvania, Illinois, and Mississippi — exempt interest income from state tax, but most do not.

Key Takeaways

  • All savings account interest is taxable federal income, regardless of the amount, and you report it on your tax return even if you receive no Form 1099-INT.
  • Your bank reports interest of $10 or more to the IRS on Form 1099-INT, which arrives in January or early February.
  • Most states tax savings interest as ordinary income, though a few states exempt it entirely.
  • High-yield savings accounts earn more interest than traditional savings accounts, which means higher tax liability in the same year.

How the IRS knows about your interest income

Banks are required to report interest payments to the IRS and to you. If you earned $10 or more in interest during the calendar year, your bank sends you a Form 1099-INT by January 31. The form shows the total interest paid in box 1. The IRS receives a copy at the same time, so they know what you earned.

If you earned less than $10, your bank may not send you a form, but the IRS still expects you to report the interest on your tax return. Many people assume no form means no reporting requirement — that is wrong. You are responsible for keeping track of all interest, whether or not you receive a 1099-INT. If you have multiple savings accounts, add up the interest from all of them.

The IRS cross-checks tax returns against 1099 forms it receives from banks. If a form shows $50 in interest but your return shows $0, the IRS computer flags the mismatch. You may receive a notice asking you to explain the difference, which can lead to penalties and interest charges if you do not respond correctly.

Where to report interest on your tax return

Interest income goes on Schedule B (Interest and Ordinary Dividends) if you have more than $1,500 in total interest and dividends for the year. If you have $1,500 or less, you can report it directly on Form 1040, line 2b, without filing Schedule B.

List each account separately on Schedule B if you are filing the full form. Include the bank name, account number (or last four digits), and the interest amount from the 1099-INT. Add up all interest from all accounts and transfer the total to Form 1040.

If you use tax software, it will usually walk you through entering the 1099-INT information and place it in the correct spot automatically. If you file by hand or with a tax preparer, bring all your 1099-INT forms with you.

High-yield savings accounts and tax liability

High-yield savings accounts pay significantly more interest than traditional savings accounts — often 4% to 5% annually compared to 0.01% or less at big banks. This higher interest is fully taxable at your ordinary income rate, just like interest from any other account.

The math matters. If you have $10,000 in a high-yield account earning 4.5%, you earn $450 in interest that year. At a 22% federal tax bracket, that is $99 in federal tax owed. At a 5% state rate, add another $22.50. The after-tax return is closer to 3.4% than 4.5%.

This does not mean high-yield accounts are a bad choice — they still beat traditional savings accounts after tax. But it means you should not be surprised when tax time arrives and you owe money on the interest. Set aside some of the interest earnings to cover the tax bill, or you may face a shortfall when you file.

Interest from CDs, money market accounts, and other savings vehicles

Certificates of deposit (CDs), money market accounts, and savings bonds all generate taxable interest. The same rules apply: report it on your tax return, and the IRS receives a 1099-INT from the issuer if the interest is $10 or more.

CDs have a special rule: if a CD matures after the tax year ends, you still owe tax on the interest in the year the CD was issued, not the year it matures. For example, a one-year CD purchased in December 2023 and maturing in December 2024 generates interest that is taxable in 2024, even though you do not receive the money until 2024. The bank will report it on a 2024 Form 1099-INT.

U.S. savings bonds (Series EE and Series I) work differently. You can choose to report interest annually or wait until the bond matures or is redeemed. Most people wait, which means they report all the accumulated interest in the year they cash the bond. This can create a large tax bill in a single year, so some people spread redemptions across multiple years to manage their tax bracket.

State tax treatment of interest income

Most states with an income tax tax savings interest as ordinary income at the same rate as wages. However, a few states have exemptions or special rules:

  • Pennsylvania exempts interest income from state tax entirely.
  • Illinois exempts interest income from state tax entirely.
  • Mississippi exempts interest income from state tax entirely.
  • New Hampshire taxes only interest and dividends (not wages), at a rate of 5%.
  • Tennessee taxes only interest and dividends (not wages), at a rate of 1%.

If you live in one of these states, you still owe federal tax on the interest, but you may not owe state tax. Check your state's tax website or ask a tax preparer to confirm your state's rules, as they can change.

What happens if you do not report interest income

The IRS will eventually notice. When your bank reports interest on a 1099-INT and your tax return shows no interest income, the IRS computer flags it as a mismatch. You will receive a notice (usually CP2000 or similar) asking you to explain the difference or pay the tax owed plus penalties and interest.

The penalty for failing to report income is typically 20% of the underpaid tax, plus interest that compounds daily. If you owed $50 in tax on unreported interest and did not pay it for two years, you might owe $50 plus $20 in penalty plus $5 to $10 in interest — a total of $75 to $80 for $50 in interest.

If the IRS determines you intentionally hid income, the penalty can be higher — up to 75% of the underpaid tax for fraud. This is rare for small interest amounts, but it is possible. The safest approach is to report all interest, even small amounts, on your tax return.

Frequently Asked Questions

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

Yes. The $10 threshold only determines whether your bank sends you a Form 1099-INT. You are responsible for reporting all interest income, no matter the amount. If you have multiple accounts, add them up. The IRS expects to see it on your return.

Can I deduct savings account fees from the interest I report?

No. You report the full interest amount the bank paid you. Fees are not deductible against interest income. However, if you paid significant investment-related fees (not typical savings account fees), you may be able to deduct them as miscellaneous itemized deductions, though this is rare and subject to limits.

What if I moved money between accounts during the year?

Moving money does not create new taxable income — only the interest the bank paid you is taxable. If you transferred $5,000 from one account to another, that transfer itself is not taxed. Only the interest earned on that $5,000 (or any other balance) is taxable.

Do I owe tax on interest if I am a dependent on my parents' return?

Yes, you owe tax on your own interest income even if your parents claim you as a dependent. Your parents' status does not change your tax obligation on money you earned. However, if your interest is very small (under $1,250 in 2024), you may not have to file a return at all — check the IRS rules for dependents.

What if my bank made an error on the 1099-INT?

Contact your bank immediately and ask them to issue a corrected 1099-INT (Form 1099-INT with a "Corrected" checkbox marked). The bank will send the corrected form to you and the IRS. Report the correct amount on your tax return. If you already filed, you may need to file an amended return (Form 1040-X) once the corrected 1099-INT is issued.