Form 1099-INT: How to report your interest income

Form 1099-INT is an IRS tax document used to report interest income of $10 or more paid to taxpayers during the calendar year by banks, financial institutions, and other entities. Recipients must report this interest income on their federal tax return, typically using Schedule B if total interest exceeds $1,500. The form helps the Internal Revenue Service verify accurate income reporting.

• Form 1099-INT reports interest income from savings accounts, bonds, and other sources when it exceeds $10 annually.
• You must report all taxable interest on your tax return, even if you don’t receive a 1099-INT form.
• Tax-exempt interest from municipal bonds appears on the form, but doesn’t increase your tax liability
• Use pdfFiller to complete, sign, and submit your 1099-INT forms online with built-in accuracy checks

Introduction

If you’ve earned interest from a savings account, corporate bond, or other investment, you’ve likely seen Form 1099-INT. The IRS Form 1099-INT, Interest Income, is an information return that is sent by entities that paid you interest during the year. Financial institutions report this interest, and taxpayers use the form to prepare accurate federal and state tax returns. Understanding it is key to correctly filing your taxes and reporting income.

In this guide, we’ll cover what Form 1099-INT is, who receives it, and how to file your taxes using the information provided on the form. If you want to learn more about other information returns and their purposes, check out our complete guide to Form 1099 and its types.

What is a 1099-INT form for?

A 1099-INT form reports interest received from various sources. Payers provide this form to you and the IRS to ensure the reported amounts match your tax return. Anyone who pays you $10 or more in interest during the year is required to issue this form.

Common sources of interest income include:

• Savings accounts and checking accounts
• Certificates of deposit (CDs)
• Corporate bonds
• U.S. Savings Bonds and Treasury obligations
• Dividends from a life insurance policy that are based on interest

Who receives Form 1099-INT?

According to the IRS instructions, you typically receive a 1099-INT if a payer reports $10 or more in taxable or certain tax-exempt interest. A 1099-INT may also be issued regardless of the amount if backup withholding applies or if foreign tax is withheld on the interest.

When is the filing due date?

The payer must send you a copy of the form by January 31 of the year following the tax year when the interest was paid. Since this date falls on a Saturday, the deadline is moved to the next business day: Monday, February 2, 2026.

Payers also send a copy directly to the IRS:

• By March 2, 2026, if filing on paper (this also includes Form 1096).
• By March 31, 2026, if filing electronically.

Understanding the key boxes on Form 1099-INT

Reading the boxes correctly is the fastest way to avoid misreporting total interest and to report your income correctly.

• Box 1 (Interest income (usually taxable interest): This often includes savings account interest and other interest paid by a financial institution.
• Box 2 (Early withdrawal penalty): Reports penalties for early withdrawal from time deposits (like a CD). This amount is usually not included in Box 1 and may be deductible as an income adjustment.
• Box 3 (Interest on U.S. Savings Bonds and Treasury obligations): This box contains interest from Treasury obligations, like Treasury bills and Treasury notes, which may be exempt from state taxes.
• Box 4 (Federal income tax withheld): This is usually for backup withholding. You can treat this amount as tax you’ve already paid when you file your federal return, which may increase your refund.
• Box 8 (Tax-exempt interest): Often from municipal bonds or municipal bond funds. It’s generally not taxable on your federal return, but it still gets reported.
• Box 9 (Specified private activity bond interest): This can matter for the alternative minimum tax (AMT) calculation.
• Box 10 (Market discount): This box shows any market discount on your bonds.

Understanding these boxes helps you accurately report each type of interest income and claim all applicable deductions.

How can pdfFiller help you complete Form 1099-INT online?

When you need to complete, store, or securely share tax forms, pdfFiller ensures your documents stay accurate and well-organized. Our online document management platform lets you fill out, save, and share your tax documents securely. With pdfFiller, you can prepare and manage all your tax forms in one place with confidence.

Here’s a quick guide for preparing Form 1099-INT with pdfFiller:

1. Upload a form from your device or cloud storage, or search for a template in pdfFiller’s form library.
2. Enter the Payer’s and Recipient’s information (name, contact details, and TINs).
3. Type in the numbers related to your interests in the correct boxes.
4. Review all data and copy it to all the form copies.
5. Click Done to finalize the form, then save it to the corresponding folder in your pdfFiller storage for future filing.

Easily complete and edit Form 1099-INT online using pdfFiller’s intuitive tools, ensuring accuracy and convenience for your tax filings.

Will a 1099-INT affect my tax return?

Yes, receiving a 1099-INT directly affects your tax return, as interest income is generally taxable. The IRS receives copies of all 1099-INT forms issued in your name, so they can verify that you’ve reported all interest received during the year. Failing to report this income can trigger IRS notices, penalties, and interest charges on unpaid taxes.

The total interest shown on your 1099-INT forms increases your gross income for the year. This increase could potentially move you into a higher tax bracket or impact your eligibility for certain tax credits and deductions. You must report all interest income on Schedule B if your total interest exceeds $1,500, or directly on Form 1040 if it’s less than that threshold.

How much tax do I pay on a 1099-INT?

The tax you owe on 1099-INT interest depends on your total income and tax bracket. Interest is taxed as ordinary income, the same as your wages or salary. There is no separate or special tax rate for interest income.

For example, if you are in the 22% tax bracket, you will pay 22 cents in federal tax for every dollar of taxable interest you earn.

To quickly estimate the impact:

1. Add up your taxable interest (often Box 1 plus Box 3).
2. Apply your marginal federal tax rate to that total.
3. Subtract any deductions you qualify for, like an early withdrawal penalty.

How do I report interest income without a 1099-INT?

You must report all interest income, even if you don’t receive a Form 1099-INT. The $10 threshold only determines whether the payer must issue the form—it doesn’t exempt you from reporting smaller amounts. If you earned less than $10 in interest, the payer isn’t required to send a form, but you still need to report it.

To report interest without a 1099-INT, check your bank statements or transaction history and total all interest earned for the year. Enter this amount on the correct line of Form 1040 or Schedule B. Keeping accurate records is crucial.

Nominee interest: How to report interest belonging to someone else

Sometimes you might receive a Form 1099-INT that includes interest for another person. This is known as nominee interest. A common example is when you hold an account in your name for someone else, like a parent holding an account for a child.

If you receive a 1099-INT with nominee interest, you must report the full amount shown on your Schedule B. Then, on a separate line, you subtract the portion that belongs to the other person, labeling it “Nominee Distribution.” You must also file your own Form 1099-INT for the actual owner, sending a copy to them and the IRS, to show who the interest truly belongs to.

How does tax-exempt interest work on Form 1099-INT?

Tax-exempt interest, shown in Box 8 of your 1099-INT, typically comes from municipal bonds issued by state and local governments. While it doesn’t count toward federal taxable income, it must still be reported on line 2a of Form 1040. The IRS uses this to calculate tax benefits and determine eligibility for certain credits.

Municipal bonds are popular for their tax advantages, funding public projects like schools and infrastructure. Their tax-exempt status appeals especially to higher-income investors. However, interest from private activity bonds may be subject to the alternative minimum tax (AMT).

Though tax-exempt interest doesn’t directly increase your taxes, it can impact other areas of your return, such as determining if your Social Security benefits are taxable or affecting eligibility for deductions and credits. Be sure to report all tax-exempt interest accurately to avoid refund delays or IRS issues.

Conclusion

Form 1099-INT is simple once you know what each box represents and where the numbers go on your tax return. Properly separate taxable interest, tax-exempt interest, and special items like nominee interest or savings bond exclusions. When you need to complete, store, or securely share tax forms, pdfFiller ensures your documents stay accurate and well-organized.

Start your free trial with pdfFiller today and discover how easy tax form preparation can be.

Glossary

• Taxable interest: An interest income you must pay federal taxes on. It usually comes from savings accounts, corporate bonds, and certificates of deposit (CDs).
• Tax-exempt interest: An interest income not subject to federal income tax. Most commonly, this includes interest earned from municipal bonds issued by state and local governments.
• Early withdrawal penalty: A fee charged by a financial institution for withdrawing funds from a time deposit account, like a CD, before its maturity date. This penalty may be tax-deductible.
• Nominee: A person who receives a Form 1099-INT for interest that belongs to someone else. The nominee is responsible for filing a separate 1099-INT to attribute the income to the true owner.