Yes, you must report all savings account interest as income on your federal tax return

The IRS requires you to report every dollar of interest your savings account earns, no matter how small. Your bank will send you a Form 1099-INT each January if you earned $10 or more in interest during the previous year. Even if you don't receive a 1099-INT, you still owe tax on the interest—the $10 threshold is just when the bank has to report it to the IRS, not when you have to pay tax on it.

Interest counts as ordinary income and is taxed at your regular income tax rate. This applies to savings accounts, money market accounts, certificates of deposit (CDs), and any other account where a bank pays you interest. The interest is taxable in the year you earn it, even if you don't withdraw the money.

Key Takeaways

  • You must report all savings account interest on your federal tax return, even amounts under $10 that don't trigger a 1099-INT form.
  • Your bank sends Form 1099-INT in January if you earned $10 or more in interest during the previous year.
  • Interest is taxed as ordinary income at your regular tax rate, which varies based on your total income and filing status.
  • If your bank reports interest to the IRS on a 1099-INT, the IRS already knows about it, so omitting it from your return creates a mismatch.

When your bank sends you Form 1099-INT

Banks mail Form 1099-INT by January 31 each year if you earned $10 or more in interest during the previous calendar year. You receive one copy and the bank sends another to the IRS. If you have multiple savings accounts at the same bank, the interest from all of them is combined on a single 1099-INT. If you bank at multiple institutions, you'll receive a separate 1099-INT from each one.

The form shows the total interest earned in box 1. Some banks also report interest on CDs or other products in separate boxes, but the total in box 1 is what you report on your tax return. Keep your 1099-INT with your tax records for at least three years.

If you earned less than $10 in interest, your bank won't send you a 1099-INT. You still owe tax on that interest, and you still report it on your return—you just won't have a form from the bank to reference.

How to report interest on your tax return

On Form 1040 (the main federal income tax form), you report interest income on line 1b under "Income." If you file using tax software, the program will ask you to enter your interest income and automatically place it in the correct location. If you file by hand, write the total interest from all your 1099-INT forms on line 1b.

If you have multiple 1099-INT forms from different banks, add them together and report the total on line 1b. You don't need to list each bank separately on the main form, though you should keep the 1099-INT forms for your records. Some people attach a statement showing the breakdown by bank, but it's not required.

The interest is then added to your other income to calculate your total taxable income for the year. Depending on your total income, filing status, and other factors, this interest may push you into a higher tax bracket or affect your may be able to access for certain tax deductions or credits.

What happens if you don't report interest income

When your bank reports interest to the IRS on a 1099-INT, the IRS receives that information and compares it to what you report on your return. If you omit the interest, the IRS will notice the mismatch. The agency may send you a notice asking you to explain the difference, or it may simply assess additional tax, interest, and penalties on the unreported amount.

The penalty for not reporting income is typically 20% of the underpaid tax, plus interest calculated from the original due date. If the IRS determines the omission was intentional rather than a mistake, the penalty can be as high as 75%. Even small amounts of unreported interest can trigger an audit or correspondence notice, which costs time and stress even if you eventually pay what you owe.

Interest income under $10 and other edge cases

If you earned interest but your bank didn't send a 1099-INT because the amount was under $10, you still report it. Look at your account statements from December and January to find the exact amount. Some banks show interest earned in the account history; others show it only in the year-end summary. Contact your bank if you can't find the figure.

If you opened a savings account late in the year and earned only a few dollars in interest, that still gets reported. If you closed an account mid-year, any interest earned up to the closing date is taxable. If you earned interest in a joint account, you and your co-owner may each owe tax on your share, depending on how the account is titled and your state's tax laws.

How interest income affects your overall tax situation

Interest income is added to your wages, self-employment income, and any other income you earn. If your total income crosses certain thresholds, it can affect your tax bracket, your standard deduction, or your may be able to access for credits like the Earned Income Tax Credit or education credits. For example, if you're a dependent claimed on someone else's return, interest income counts toward the limit that determines whether you have to file your own return.

High-yield savings accounts and CDs currently offer interest rates higher than they did in previous years, so if you moved money to these accounts recently, you may see a larger 1099-INT than in past years. This is normal and expected—the interest is still taxable income.

If you're retired or living on a fixed income, interest from savings can push you over the threshold where you owe tax on Social Security benefits. Consult a tax professional if you're in this situation, as the interaction between interest income and Social Security taxation is complex.

Frequently Asked Questions

What if I earned interest but my bank didn't send a 1099-INT?

If you earned less than $10, your bank has no obligation to send a form. You still report the interest on your return by checking your account statements. If you earned $10 or more and didn't receive a 1099-INT by early February, contact your bank to request a copy or ask them to send it electronically.

Do I report interest from a joint savings account differently?

The bank reports the full interest amount on the 1099-INT, but you and your co-owner may each owe tax on only your share. If the account is owned equally, you each report half. Consult your co-owner and your tax records to determine the split, or ask your bank how they allocated the interest.

Is interest from a savings account at a credit union taxed the same way?

Yes. Credit unions send Form 1099-INT just like banks do, and the interest is reported the same way on your tax return. The only difference is the institution sending the form, not how you report it.

What if I moved money between accounts and earned interest in multiple places?

You report the total interest from all accounts. If you have 1099-INT forms from three different banks, add the amounts and report the total on line 1b of your return. Keep all the forms for your records.

Can I deduct any expenses related to my savings account?

No. Interest income is reported as-is with no deductions. Account fees, if you paid them, are not deductible either. You report the gross interest your bank paid you, not the net amount after fees.