What Is a 1099-INT? A Plain-English Guide to Reporting Interest Income

If you receive Form 1099-INT, report the interest it shows on your federal tax return, even if the amount is small or you do not owe additional tax. Banks, brokerages, bond issuers, and other payers use the form to report interest paid to you and generally send the same information to the IRS. The form may show taxable interest, tax-exempt interest, foreign tax paid, or federal income tax withheld, and each amount can be handled differently on your return. A payer may not have to send you a form for interest below the reporting threshold, but that does not automatically make the interest nontaxable or exempt from reporting. Check every populated box and compare the amounts with your records before filing.

What Form 1099-INT Reports

Form 1099-INT is an IRS information return for certain interest payments. Interest can come from a savings or checking account, a certificate of deposit, bonds, or other interest-earning financial products. A payer sends the form to you and reports the information to the IRS. Investopedia's overview of Form 1099-INT explains that the form can report different kinds of interest and related amounts.

Receiving a 1099-INT does not automatically mean you owe additional tax. Your overall tax result depends on your full return, including income, deductions, credits, and withholding. However, interest shown on the form generally needs to be reported. Fidelity notes that receiving the form does not necessarily mean you owe income tax, while the interest it records should still be reported.

Who Sends and Receives the Form?

The payer sends Form 1099-INT to the person or entity that received the interest. A bank or brokerage is a common payer, but other organizations that pay qualifying interest may also issue the form.

The IRS generally requires a payer to file Form 1099-INT when reportable amounts in Boxes 1, 3, or 8 total at least $10. Filing is also required when foreign tax was withheld and paid on interest, or when federal income tax was withheld under backup-withholding rules, regardless of the payment amount. The IRS Form 1099-INT overview describes when the form is used.

The $10 threshold applies to the payer's requirement to issue the form. It does not mean that interest below $10 can always be left off a tax return. Taxability and reporting obligations are not determined solely by whether a payer sends a form.

Common Reasons You Might Receive One

You might receive a 1099-INT even if you do not think of yourself as an investor. Common sources include interest from a checking or savings account, a certificate of deposit, bonds, a brokerage account, or a life insurance carrier. Redeeming U.S. savings bonds can also result in a 1099-INT.

A savings bond form may arrive when the bond is redeemed rather than at the end of the year. That timing can make the form unexpected. Forbes reported on this timing issue as part of its explanation of tax forms that recipients may receive.

How to Read the Form's Boxes

Form 1099-INT uses numbered boxes to distinguish types of interest and other tax information. Box 1 generally reports taxable interest, such as interest earned on a savings account. Box 3 reports interest on U.S. Treasury obligations, including Treasury bonds or savings bonds. This interest is generally subject to federal income tax and may be exempt from state and local income taxes.

Box 8 reports tax-exempt interest, often from municipal bonds. It is generally exempt from federal income tax, but it still needs to be reported on your return as directed by the tax forms. Box 4 shows federal income tax withheld under backup-withholding rules. Box 6 reports foreign tax paid, which may qualify for a tax credit depending on your circumstances.

Do not assume that Box 1 is the only amount that matters. Review every populated box because taxable interest, tax-exempt interest, and withheld amounts can be reported differently. The IRS instructions for Forms 1099-INT and 1099-OID explain the boxes and related reporting rules.

For many individual filers, taxable interest is reported on Form 1040. If total taxable interest exceeds $1,500, filers generally use Schedule B to list each payer and the amount received. Below that threshold, the total is generally entered directly on Form 1040. Tax-exempt interest from Box 8 is reported separately from taxable interest.

What to Do When You Receive a 1099-INT

First, compare the form with your records. Check that you recognize the payer and that the amount generally matches your account statements or other records. If a payer or amount is unfamiliar, or the figure appears incorrect, contact the payer to clarify it.

1. Keep the form with your tax records while preparing your return.
2. Review every populated box because the amounts may receive different tax treatment.
3. Enter the information accurately on your return or provide the complete form to your tax preparer.
4. Contact the payer about an apparent error rather than changing the reported amount yourself.
5. Check smaller accounts and transactions because savings accounts, CDs, and redeemed bonds can generate interest forms.

If you have several accounts, make a checklist of the institutions and forms you expect. Comparing that list with the documents you receive can help you identify missing forms before filing.

When to Expect the Form

For the 2026 filing season, most Forms 1099, including Form 1099-INT, were due to recipients by February 2, 2026, according to Forbes' deadline overview. The deadline for a recipient to receive a form and the deadline for a payer to file it with the IRS are not always the same.

A payer may deliver the form by mail, through an online account, or both. Check your bank or brokerage account for tax-document notices before assuming a form is missing. If you still cannot find it, review your year-end statements and contact the payer. A missing form does not change whether you received interest or whether it belongs on your return.

How 1099-INT Differs from Other 1099 Forms

“1099” refers to a group of information returns for different types of payments. Form 1099-INT reports interest income. Form 1099-NEC reports nonemployee compensation, Form 1099-DIV reports dividends, and Form 1099-R reports retirement distributions. You may receive more than one type in the same year, and each may be reported in a different part of your return. Check the form title rather than treating all 1099 forms as interchangeable.

*This article is for general informational purposes only and is not legal advice.