If you've earned interest from a bank account, certificate of deposit (CD), or other financial investment, you've likely received IRS Form 1099-INT. This essential tax document plays a crucial role in accurately reporting your interest income to the Internal Revenue Service.
What Is IRS Form 1099-INT?
IRS Form 1099-INT, officially known as the "Interest Income" form, is an information return used to report interest payments of $10 or more made during the tax year. Financial institutions, banks, credit unions, brokerage firms, and other payers are required to issue this form to both the recipient and the IRS when they pay qualifying interest income.
The form serves as a critical communication tool between financial institutions, taxpayers, and the IRS, ensuring that all interest income is properly reported and taxed. It's part of the broader 1099 series of forms designed to capture various types of non-employment income.
Key Purpose and Function
The primary purpose of Form 1099-INT is to:
- Document interest income paid to taxpayers
- Ensure proper tax reporting and compliance
- Help the IRS match reported income with tax returns
- Provide taxpayers with accurate records for tax filing
Who Needs to File Form 1099-INT?
Payers Required to File
Financial institutions and businesses must file Form 1099-INT when they pay:
- At least $10 in interest (reported in boxes 1, 3, or 8)
- At least $600 of interest paid in the course of trade or business
- Any amount if federal income tax was withheld under backup withholding rules
- Any amount if foreign tax was withheld on interest
Common payers include banks and credit unions, investment companies and brokerage firms, mutual fund companies, government agencies paying interest on refunds, businesses paying interest on delayed payments, and life insurance companies paying interest on delayed death benefits.
Recipients of Form 1099-INT
You'll receive Form 1099-INT if you earned:
- Interest from savings accounts, checking accounts, or money market accounts
- Interest from certificates of deposit (CDs)
- Interest from corporate bonds
- Interest from U.S. Savings Bonds and Treasury securities
- Dividends from credit union share accounts
- Interest from seller-financed mortgages
- Interest as part of damages or legal settlements
2026 Tax Season Updates and Deadlines
For the 2025 tax season (reporting 2025 income), these critical deadlines apply:
- Monday, February 2nd, 2026: 1099-INT deadline for payers to furnish Form 1099-INT to recipients
- Monday, March 2nd, 2026: 1099-INT deadline for paper filing with the IRS
- Tuesday, March 31st, 2026: 1099-INT deadline for electronic filing with the IRS
Businesses must now file electronically if they're filing 10 or more information returns (down from the previous threshold of 250). This lower threshold means more businesses will need to e-file their 1099-INT forms.
Import
E-file
Done
Understanding Each Box on Form 1099-INT
Form 1099-INT contains 17 boxes, each serving a specific purpose. Let's examine the most important ones:
Box 1: Interest Income
This box reports taxable interest of $10 or more, including bank account interest, interest from corporate bonds, interest from credit union accounts, and accrued qualified stated interest on bonds sold between interest dates. This amount must be reported on your tax return and is subject to federal income tax.
Box 2: Early Withdrawal Penalty
If you withdrew funds from a CD or other time deposit before maturity, any penalties paid appear here. This amount can typically be deducted as an adjustment to income on Schedule 1 of Form 1040.
Box 3: Interest on U.S. Savings Bonds and Treasury Obligations
Interest from federal securities appears here, including Series EE and I Savings Bonds and Treasury bills, notes, and bonds. While this interest is federally taxable, it's generally exempt from state and local taxes.
Box 4: Federal Income Tax Withheld
Shows any federal tax withheld from your interest payments, typically due to backup withholding (if you didn't provide a correct TIN) or voluntary withholding requests.
Box 8: Tax-Exempt Interest
Reports interest exempt from federal income tax, typically from municipal bonds, state and local government obligations, and qualified private activity bonds. While federally tax-exempt, this interest may still be subject to state taxes.
Boxes 6-7: Foreign Tax
Box 6 shows foreign tax paid on interest from foreign sources. Box 7 identifies the country or territory where foreign tax was paid.
Boxes 11-13: Bond Premium
Box 11 reports general bond premium; Box 12 reports bond premium on Treasury obligations; Box 13 reports bond premium on tax-exempt bonds.
How to Report Interest Income on Your Tax Return
When you receive Form 1099-INT, you must report the interest income on your federal tax return:
- For interest totaling $1,500 or less: Report directly on Form 1040, Line 2a
- For interest exceeding $1,500: Complete Schedule B before transferring the total to Form 1040
Step-by-Step Reporting Process
- Gather all 1099-INT forms from every financial institution
- Add up Box 1 amounts from all forms for total taxable interest
- Include Box 3 amounts (U.S. Savings Bond interest) in your total
- Report tax-exempt interest (Box 8) on the appropriate line of Form 1040
- Claim any early withdrawal penalties (Box 2) as an adjustment to income
- Include federal tax withheld (Box 4) in your total tax payments
Common Types of Interest Reported on Form 1099-INT
Traditional Bank Interest
- Savings account interest
- Checking account interest (for interest-bearing accounts)
- Money market account interest
- Certificate of deposit (CD) interest
Investment Interest
- Corporate bond interest
- Interest from bond funds
- Accrued interest on bonds purchased between payment dates
- Original issue discount (OID) on short-term obligations
Government Securities Interest
- U.S. Treasury bills, notes, and bonds
- Series EE and I Savings Bonds
- Government agency securities
Tax-Exempt vs. Taxable Interest
Taxable Interest (Box 1)
Most interest income is taxable at the federal level and must be included in your gross income. This includes bank and credit union interest, corporate bond interest, and most investment account interest. Taxable interest is subject to your ordinary income tax rate, not the preferential capital gains rates.
Tax-Exempt Interest (Box 8)
Certain interest is exempt from federal income tax, including municipal bond interest, interest from bonds issued by states, cities, and counties, and some private activity bond interest.
U.S. Government Securities (Box 3)
Federal securities interest has special tax treatment: federally taxable but generally state tax-exempt. This includes Treasury bills, notes, bonds, and U.S. Savings Bonds. Report this separately to claim state tax exemption.
Common Mistakes to Avoid
- Forgetting to report all interest income. Report ALL interest income, even amounts under $10 that don't generate a 1099-INT.
- Incorrect TIN or name mismatches. Ensure your name and TIN match exactly on all forms.
- Missing foreign interest income. Foreign accounts may trigger FBAR (FinCEN Form 114) reporting if balances exceed $10,000.
- Not reporting early withdrawal penalties as a deduction. Box 2 penalties are deductible as an adjustment to income.
