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

The IRS treats savings account interest as ordinary income. That means every dollar your bank pays you in interest counts toward your taxable income for the year, and you report it on your federal tax return. There is no threshold — even $5 in interest is taxable. Your bank will send you a Form 1099-INT in January showing how much interest you earned the previous year, and you use that number on your tax return.

Most states also tax savings interest as income, though a few do not. The states that do not tax interest income are Alaska, Florida, Illinois, Mississippi, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming. If you live in any other state, you will owe state income tax on your interest as well as federal tax.

The amount of tax you pay depends on your total income and your tax bracket. Someone in the 22% federal tax bracket pays 22 cents in federal tax for every dollar of interest earned. Someone in the 12% bracket pays 12 cents per dollar. The higher your income, the higher your bracket, and the more tax you owe on that interest.

Key Takeaways

  • All savings account interest is taxable income at the federal level, and your bank reports it to the IRS on Form 1099-INT.
  • Ten states do not tax interest income, but the other forty states do, so check your state's rules.
  • The tax you owe on interest depends on your total income and tax bracket, not on the size of the interest payment.
  • You report interest income on your tax return even if you do not receive a Form 1099-INT, and the IRS has a record of it anyway.

When your bank sends you Form 1099-INT

Your bank mails or emails Form 1099-INT by January 31 each year if you earned $10 or more in interest during the previous year. The form shows the total interest paid to you across all accounts you hold at that bank. If you have accounts at multiple banks, each bank sends its own 1099-INT.

You need to report the interest shown on Form 1099-INT on your federal tax return. If you file using tax software, you enter the amount from box 1 of the form. If you file by hand, you report it on Schedule 1 (Form 1040) and add it to your other income. The IRS receives a copy of your 1099-INT directly from your bank, so they know how much interest you earned whether or not you report it.

If you earned less than $10 in interest, your bank may not send you a 1099-INT, but you still owe tax on that interest. You report it on your return based on your own records — your bank statements or year-end summary.

How high-yield savings accounts change your tax bill

A high-yield savings account pays more interest than a traditional savings account, which means you owe more tax on that interest. If a regular savings account pays 0.01% APY and a high-yield account pays 4.50% APY, the difference in interest you earn is substantial, and so is the difference in tax.

Example: $10,000 in a regular savings account at 0.01% earns $1 per year in interest. $10,000 in a high-yield account at 4.50% earns $450 per year. If you are in the 22% tax bracket, you owe $0.22 in tax on the first account and $99 on the second. The higher interest rate means higher earnings, but also a higher tax bill.

This does not mean high-yield accounts are a bad choice — you still come out ahead because you earn more interest than you pay in tax. But it does mean you should factor the tax into your planning, especially if you are moving a large sum into a high-yield account for the first time.

Tax-advantaged accounts that avoid interest taxation

Certain accounts let you earn interest without paying tax on it. A Roth IRA or Roth 401(k) lets you earn interest tax-free as long as you follow the withdrawal rules — you cannot touch the money before age 59½ without a penalty, with narrow exceptions. A traditional IRA or 401(k) defers the tax: you do not pay tax on the interest now, but you pay tax on the whole withdrawal when you take the money out in retirement.

A 529 college savings plan lets you earn interest tax-free if you use the money for may have access to education expenses. A Health Savings Account (HSA) lets you earn interest tax-free if you use the money for medical expenses.

These accounts have contribution limits and rules about when and how you can withdraw the money. They are useful if you have a specific goal — retirement, education, or medical costs — but they are not a substitute for a regular savings account if you need access to your money sooner.

What happens if you do not report interest income

The IRS matches the 1099-INT your bank sends them against the income you report on your tax return. If you earned $500 in interest and do not report it, the IRS will notice the discrepancy. They may send you a notice asking you to explain the difference, or they may simply assess the tax, interest, and penalties on their own.

The penalty for not reporting income is usually 20% of the unpaid tax, plus interest on the unpaid amount going back to the original due date. If the IRS determines you did this intentionally rather than by mistake, the penalty can be as high as 75%. It is far cheaper to report the interest than to ignore it and deal with the consequences later.

Interest from CDs and money market accounts

Interest from certificates of deposit (CDs) and money market accounts is taxed the same way as savings account interest — it is all ordinary income. Your bank reports it on Form 1099-INT, and you owe federal and state tax on the full amount.

One difference: if you withdraw money from a CD before the maturity date, you usually pay an early withdrawal penalty. That penalty does not reduce your taxable interest — you still owe tax on the full interest earned, even though you paid a penalty to get your money out early. The penalty is a separate cost.

Frequently Asked Questions

Do I owe tax on interest if I reinvest it instead of withdrawing it?

Yes. The IRS taxes interest in the year it is earned, regardless of whether you withdraw it, leave it in the account, or move it to another account. If your bank automatically reinvests interest, you still owe tax on it that year.

What if I earned interest in multiple states during the year?

You report all interest income on your federal return. For state taxes, you report interest earned while you were a resident of each state to that state. If you moved mid-year, you may file part-year returns in two states. Your tax software or a tax professional can help you sort this out.

Can I deduct investment losses against my savings interest?

No. Savings account interest is ordinary income, and investment losses do not offset it. Investment losses can only offset investment gains, and any excess loss can offset up to $3,000 of other income per year.

Is interest from a joint account split between the two owners for tax purposes?

Not automatically. The person whose Social Security number is on the account receives the Form 1099-INT. If you own the account jointly but only one of you earned the interest, you may need to file an amended return or work with a tax professional to report it correctly on both returns.

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

Contact your bank and ask them to issue a corrected Form 1099-INT (marked as a correction). Once they send the corrected form to you and the IRS, file an amended return showing the correct amount. Keep records of your communication with the bank in case the IRS questions the discrepancy.