IRS Form 1099-INT

Form 1099-INT: Interest Income

A plain-English guide to IRS Form 1099-INT — what it's for, who files it, when it's due, and how to complete it.

Form number1099-INT
Official nameInterest Income
CategoryInformation return
Typically dueJanuary 31
Official IRS Form 1099-INT (PDF)

What is Form 1099-INT?

Form 1099-INT reports interest income of $10 or more paid to you during the year — typically from banks, credit unions and brokerages.

Banks issue a 1099-INT for $10+ of interest, but you owe tax on interest even if it's under $10 and no form arrives. With today's higher savings rates, a lot of people are seeing real interest income — and real tax on it — for the first time in years.

UpTax prepares returns and forms like this with AI, then a US CPA or EA reviews every figure before anything is filed — accuracy first, hours saved second.

Who files it

Banks and other payers issue it to anyone they paid $10+ in interest.

When it's due

Form 1099-INT is generally due January 31. Deadlines can move for weekends and holidays, so confirm the exact date for the current year on IRS.gov.

Key lines and parts

Here's what you'll actually fill in on Form 1099-INT:

  • Box 1 — interest income
  • Box 3 — interest on U.S. savings bonds and Treasury obligations
  • Box 4 — federal tax withheld

How to file

Report the interest on your Form 1040 (and Schedule B if your total interest is over $1,500).

Common mistakes & penalties

Interest is taxed the year it's credited, not the year you withdraw it, so leaving it in the account doesn't defer the tax. Also don't overlook interest inside a brokerage account — it often shows up on a consolidated 1099 rather than a standalone INT.
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Frequently asked questions

What is IRS Form 1099-INT?

Form 1099-INT reports interest income of $10 or more paid to you during the year — typically from banks, credit unions and brokerages.

Who has to file Form 1099-INT?

Banks and other payers issue it to anyone they paid $10+ in interest.

When is Form 1099-INT due?

Form 1099-INT is generally due January 31. Always confirm the current year's date on IRS.gov, since deadlines shift for weekends and holidays.

What's the most common mistake with Form 1099-INT?

Interest is taxed the year it's credited, not the year you withdraw it, so leaving it in the account doesn't defer the tax. Also don't overlook interest inside a brokerage account — it often shows up on a consolidated 1099 rather than a standalone INT.