Form detail
IRS Form 1099-INT
Interest Income
Country
United States
Revision year
2024
Methods
paper, efile
Updated
2026-05-20
Interest Income
Information return used to report interest income paid by banks, brokers, and other payers, along with related withholding and original issue discount items.
Who must file: Payers that, in the course of a trade or business, paid at least $10 of interest (including tax-exempt interest) or $600 of interest in some specific circumstances, or withheld federal income tax under backup withholding regardless of the amount.
Practical overview
Foreign payors and U.S. private lenders frequently miss 1099-INT filings for owner loans and seller-financed mortgages. Tax-exempt interest still needs to be reported in box 8 even though it is not subject to federal tax. Recipient TIN mismatches drive most penalty notices on this form.
Practical steps
- Aggregate interest paid to each payee for the calendar year, including taxable and tax-exempt interest.
- Apply backup withholding if the payee did not furnish a correct TIN on Form W-9.
- Furnish Copy B to recipients and file Copy A with the IRS by the applicable deadlines.
- For 10 or more total information returns in the calendar year, file electronically through FIRE or IRIS.
Due-date notes
Furnish Copy B to recipient.
Timing: January 31
File Copy A with IRS on paper.
Timing: February 28
Extension reference: Form 8809
File Copy A with IRS electronically.
Timing: March 31
Extension reference: Form 8809
Penalty snapshot
Information return penalties under IRC §§ 6721 and 6722; amounts vary by lateness and are inflation-adjusted annually.
Related citations
Computed from the cross-reference graph. Links open the related entity on this site.
This entry cites
- FormIRS 1099-DIV
- FormIRS W-9
Cited by
- FormIRS 1099-DIV
Primary sources
- About Form 1099-INTVerified 2026-05-20
- Instructions for Forms 1099-INT and 1099-OIDVerified 2026-05-20
Important disclaimer
This library is for general tax education only. Always verify filing obligations, due dates, and tax consequences against the cited primary source or with a qualified tax professional.