Linn County, IA follows the Iowa statutory schedule. This page shows that schedule, the county's own website, and the late penalty — the county can still set its own dates, so confirm before you pay.
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…until 2nd half — April 1, 2027
Instalment
Due date
Notes
2nd half
April 1, 2027
Second half is payable through March 31 and delinquent April 1.
1st half
October 1, 2027
First half is payable through September 30; the statute makes it delinquent October 1.
Statewide schedule — read this before you rely on it
All 99 counties use the same October 1 and April 1 delinquency dates set in Iowa Code 445.37. Most counties in this state follow these dates.
Delinquent taxes accrue interest at 1.5% per month from the October 1 or April 1 delinquent date.
County treasurers mail tax statements after the levy is certified in the fall, with the first half due at the end of September.
Linn County at a glance
Population: 228,972 (Census estimate, 2023) — the 2nd largest of 99 Iowa counties and county equivalents.
Typical tax bill: $3,262 a year (median for owner-occupied homes, ACS 2022 5-year estimate) — the Iowa median is $2,703.
Land area: 717 sq mi, about 319.3 people per sq mi.
How to pay Linn County property tax
Search "Linn County IA treasurer" for the county's own payment page — we have not confirmed a site for this county.
By post: mail to the county treasurer; the postmark usually counts, not the arrival date.
In person: the treasurer's office, with your bill or parcel number.
Escrow: if your mortgage escrows taxes, the servicer pays — you still owe any shortfall.
Is this county verified?
Not yet. Linn County is on the queue: we publish a county's own published dates once they have been checked against the county website. Ask for it and it moves up. Until then, the Iowa statutory schedule above is the reliable starting point.
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StacyApproved is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.