Status
Primary source (statute, regulation or agency publication saved in full)
Primary source (statute, regulation or agency publication saved in full); regulation via Cornell LII mirror; statute and IDR pages direct
Federal backup withholding under IRC 3406 (24 percent on a missing or mismatched TIN) applies in Iowa exactly as everywhere else; this page covers only what the state adds. The 50-state tables put Iowa next to its neighbours, and the Iowa 1099 filing page covers whether the state wants its own copy of the 1099.
Withholding on non-wage payments to nonresidents
What Iowa does not require
State backup withholding
No state backup withholding: Iowa Code 422.16(2)(c) ties nonwage withholding to IRC 3402(o), (p), (s) and 3405 payments to Iowa residents; 3406 is not referenced; interest and dividends are not subject to Iowa withholding
Basis: Primary source (statute, regulation or agency publication saved in full).
Pass-through entity withholding (out of scope)
For tax years from 2022 Iowa requires composite returns (422.16B) instead of withholding for nonresident owners. Entity-level withholding on distributions to nonresident owners is a duty of the entity, not of a payer, and is not covered on this page.
From the source
“Iowa income tax should be withheld at a rate of 5 percent of the amount of the payment”
Iowa Admin. Code r. 701-307.4(1), text via Cornell LII, read November 1, 2026
“a payment equal to 3.8% of Line 3 below”
Iowa Form 44-017, Nonresident Claim for Release from Withholding, read November 1, 2026
“Compensation paid to entertainers performing in Iowa, but not payments to entertainment corporations”
Iowa Department of Revenue, Iowa Withholding Tax Information, read November 1, 2026
What to confirm
- Two figures appear in the Department’s own materials: rule 701-307.4 says 5 percent of the payment, and Form 44-017 (the release form the nonresident files) computes the alternative estimated payment at the 3.8 percent individual rate. The rule governs the withholding the payer makes; the form governs the payment the payee makes instead. Confirm with the Department which figure it expects on a given payment type.
- The rule text was read from Cornell LII; the statute and the Department pages were retrieved directly.
Sources
Each source below was read and saved on November 1, 2026; the page is built from the saved text. Statutes are cited to the section; department pages and publications to their title and, where shown, revision date.
- https://www.legis.iowa.gov/docs/code/422.16.pdf (read November 1, 2026)
- https://revenue.iowa.gov/taxes/tax-guidance/withholding-tax/iowa-withholding-tax-information (read November 1, 2026)
- https://www.law.cornell.edu/regulations/iowa/Iowa-Admin-Code-r-701-307-4 (read November 1, 2026)
- https://revenue.iowa.gov/media/2317/download (read November 1, 2026)