Form 1099-INT

What is Form 1099-INT and How Does It Affect Your Tax Return?

Form 1099-INT is a tax document issued by financial institutions to report interest income of $10 or more earned during the year. It informs both the taxpayer and the IRS, ensuring proper reporting of interest income on your federal tax return.
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Form 1099-INT is an essential tax form sent by banks, credit unions, brokerages, and other financial institutions to report interest income you earned during the calendar year. Generally, if you earn $10 or more in interest from savings accounts, certificates of deposit (CDs), bonds, money market accounts, or other interest-bearing investments, you will receive a 1099-INT by January 31 of the following year. The IRS receives a copy of this form to cross-check reported income, making it a vital document for both taxpayers and the IRS.

Why Does Form 1099-INT Exist?

The IRS uses Form 1099-INT as part of its “information returns” program, designed to improve accuracy and compliance in income reporting. Before such forms existed, tracking income like interest payments depended heavily on taxpayer disclosure. Now, financial institutions report this income directly to both the IRS and taxpayer, reducing underreporting.

How Form 1099-INT Works

When you earn interest from a financial institution, they track these payments throughout the year. If your total interest from a single payer meets or exceeds $10—or if any federal income tax was withheld from the interest—they must issue the 1099-INT. The form itemizes various categories of interest income and any related penalties or withheld taxes.

  • The form is typically mailed by January 31 of the year after interest is earned.
  • The IRS receives the same data simultaneously.
  • Taxpayers use it to accurately report interest income, usually on Schedule B of Form 1040 if total interest exceeds $1,500 or if other conditions apply.

Common Types of Interest Reported

  • Interest from savings accounts and CDs.
  • Bond interest, including corporate and U.S. government bonds.
  • Interest from money market accounts.
  • Tax-exempt interest, such as that from municipal bonds (reported for informational purposes).

Who Receives a Form 1099-INT?

You will receive this form if:

  • You earn $10 or more in interest from a financial institution.
  • Any federal tax was withheld from your interest payments.
  • You earn interest from U.S. Treasury obligations or tax-exempt municipal bonds.

Note that even if you don’t receive a 1099-INT (for example, if interest earned is under $10), you are still required to report all taxable interest income on your tax return.

Understanding the Boxes on Form 1099-INT

Here are key boxes you’ll find on the form:

  • Box 1: Interest Income – total taxable interest.
  • Box 2: Early Withdrawal Penalty – penalties on early CD withdrawals, deductible even without itemizing.
  • Box 3: Interest on U.S. Savings Bonds & Treasury Obligations – federally taxable but exempt from state taxes.
  • Box 4: Federal Income Tax Withheld – backup withholding or other withheld taxes.
  • Box 8: Tax-Exempt Interest – usually from municipal bonds, reported for AMT and informational purposes.
  • Box 9: Specified Private Activity Bond Interest – taxable under the Alternative Minimum Tax (AMT).

Exact details can be verified on the IRS official page.

Tips for Handling Your 1099-INT

  • Keep track of all your interest earnings and compare with 1099-INT forms received.
  • Report all interest income, even if you do not receive a form.
  • Verify the accuracy of your 1099-INT and request corrections if necessary.
  • Understand how joint accounts affect reporting.
  • Retain copies of all tax documents for at least three years.

Common Errors to Avoid

  • Failing to report all interest income even if under $10 or form not received.
  • Ignoring tax-exempt interest because it’s “non-taxable.”
  • Overlooking early withdrawal penalties that could reduce tax liability.
  • Improperly allocating joint account interest.

Related Topics on FinHelp.io

For further clarity on related financial topics, check out our entries on Certificate of Deposit (CD), 1099 Form, and Early Withdrawal Penalties Deduction.


Form 1099-INT is key to proper tax reporting of interest income and helps ensure you comply with IRS rules efficiently. For additional information, visit the IRS Form 1099-INT page.

This comprehensive guide empowers you to understand, verify, and report your interest income correctly, avoiding common mistakes and maximizing your tax filing accuracy.

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