The IRS taxes all savings account interest as ordinary income

Any interest your savings account earns is taxable income. The bank or credit union will send you a form called a 1099-INT at the end of the year if you earned $10 or more in interest. You report this amount on your tax return just like you would report wages from a job.

The tax rate you pay depends on your overall income and tax bracket — the same brackets that explore to your salary. If you earned $500 in interest and you're in the 22% tax bracket, you would owe roughly $110 in federal tax on that interest (though state taxes may explore too). The bank does not withhold this tax automatically, so you may need to set aside money when tax time comes.

This applies to all types of savings accounts: regular savings accounts, money market accounts, and certificates of deposit (CDs). High-yield savings accounts earn more interest, which means more taxable income — one reason some people use them despite the tax bill.

Key Takeaways

  • The IRS treats savings account interest as ordinary income and taxes it at your regular income tax rate, not a special rate.
  • Banks send a 1099-INT form if you earn $10 or more in interest during the year, and you must report this on your tax return.
  • You owe federal tax on the interest, and most states tax it as well, though a few states do not tax interest income.
  • The bank does not automatically withhold taxes from your interest, so you may owe money at tax time rather than receiving a refund.

How the 1099-INT form works

In January or early February, your bank will mail or email you a 1099-INT if you earned at least $10 in interest during the previous year. This form shows how much interest you earned in each account. You receive one copy, and the bank sends another to the IRS.

If you have accounts at multiple banks, you may receive several 1099-INT forms — one from each institution. When you file your taxes, you add up all the interest from all your forms and report the total on your tax return. The IRS already knows the number because they received copies from the banks, so misreporting it creates a mismatch they will catch.

If you earned less than $10 in interest, the bank does not have to send you a form, but you still owe tax on that interest if you have any tax liability at all. Some people with very low income may not owe tax even on interest they earned, but that depends on your total income for the year.

The difference between federal and state taxes

Federal tax applies everywhere in the United States. You report your interest income on your federal return (Form 1040), and the IRS taxes it at your federal tax bracket rate.

State taxes vary widely. Most states tax interest income the same way the federal government does. However, a handful of states — including Illinois, Mississippi, and Tennessee — do not tax interest income at all. A few others tax interest but offer exemptions for people over a certain age or with income below a threshold. If you live in one of these states, you may owe no state tax on your savings interest even though you owe federal tax.

You report state taxes on your state income tax return, which is separate from your federal return. Your bank's 1099-INT applies to both — you use the same interest amount for both federal and state reporting.

Why the bank does not withhold taxes

Unlike an employer, who withholds income tax from your paycheck before you receive it, banks do not automatically withhold tax from interest. You receive the full amount of interest in your account, and you are responsible for setting aside money to pay the tax when it comes due.

This can create a surprise at tax time. If you earned $1,000 in interest and you're in the 24% federal bracket, you might owe $240 in federal tax plus state tax — but you already spent the interest or left it in the account. The IRS still expects payment by April 15.

You can request that a bank withhold taxes from your interest if you want to, though most people do not. You would fill out a form (usually Form W-9 or a bank-specific form) asking them to set aside a percentage. This is rare because most people prefer to keep the full amount and handle taxes themselves.

How interest income affects your overall tax situation

Interest income counts toward your total income for the year, which can affect other parts of your taxes. If you are close to a tax bracket boundary, extra interest income might push you into a higher bracket. If you receive Social Security, interest income can make more of your benefits taxable. If you are self-employed, interest income does not count toward self-employment tax, but it does count toward income tax.

Some people use this fact to plan their finances. For example, if you know you will have a lower-income year, you might move money from a regular savings account to a high-yield savings account that year to earn more interest — because the tax on that interest will be lower due to your lower bracket. The opposite is true if you expect a high-income year.

This is one reason to think about where you keep your money. A high-yield savings account might earn 4% or 5% interest, but if you're in the 24% tax bracket, the after-tax return is closer to 3% or 3.8%. A regular savings account earning 0.01% interest generates almost no taxable income and almost no tax bill.

What happens if you do not report interest income

The IRS receives a copy of every 1099-INT your bank sends. If you do not report the interest on your tax return, the IRS will notice the mismatch between what you reported and what the bank reported. They will send you a notice asking for the missing income and the tax owed, plus penalties and interest charges on the unpaid tax.

The penalty for not reporting income is typically 20% of the unpaid tax, plus interest that compounds daily. If you owed $240 in tax and did not report it, you might end up owing $288 or more by the time the IRS finishes calculating penalties and interest. The longer you wait to correct it, the larger the penalty grows.

If the error was honest — you straightforward forgot or did not realize interest was taxable — you can file an amended return to correct it. The IRS is usually more lenient with people who come forward voluntarily than with people they catch through their matching process.

Frequently Asked Questions

Do I have to pay taxes on interest if I earned less than $10?

The bank does not have to send you a 1099-INT form if you earned less than $10, but you still owe tax on that interest if you have any tax liability. You report it on your return even without the form. If your total income is very low, you may not owe any tax at all, but that depends on your full financial picture.

What if I have interest from a CD that matured this year?

Interest from a CD is reported on a 1099-INT just like interest from a savings account. If the CD matured and you withdrew the money, the interest earned up to the maturity date is taxable in the year it was earned, not the year you withdrew it. The bank will report it on the form they send you.

Can I deduct savings account interest as a business expense?

No. Interest earned on a personal savings account is income, not an expense you can deduct. If you have a business account and earn interest on business funds, that interest is still taxable income to your business, though it may be reported differently depending on your business structure.

Do I owe taxes on interest if I reinvest it in the same account?

Yes. Whether you withdraw the interest, spend it, or leave it in the account to earn more interest does not matter — you owe tax on it in the year it was earned. The IRS taxes the interest when the bank credits it to your account, not when you withdraw it.

What if I moved money between banks mid-year?

You will receive a 1099-INT from each bank where you held an account that earned at least $10 in interest. Add up all the interest from all the forms and report the total on your tax return. The IRS will see all the forms too, so make sure your total matches.