Douglas County, KS follows the Kansas 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 1st half — December 21, 2026
Instalment
Due date
Notes
1st half
December 21, 2026
Full amount or the first half is due December 20; dates move to the next business day on a weekend.
2nd half
May 11, 2027
Remaining half is due May 10 of the following year.
Schedule: ksrevisor.gov · Kansas statute · not yet county-verified
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Statewide schedule — read this before you rely on it
All 105 counties follow the December 20 and May 10 dates in K.S.A. 79-2004. Most counties in this state follow these dates.
The unpaid first half draws interest at the statutory rate plus five points from December 21, and any balance draws the same from May 11.
County treasurers mail tax statements in November after the tax roll is certified and delivered.
Douglas County at a glance
Population: 120,553 (Census estimate, 2023) — the 5th largest of 105 Kansas counties and county equivalents.
Typical tax bill: $3,249 a year (median for owner-occupied homes, ACS 2022 5-year estimate) — the Kansas median is $2,536.
Land area: 455.8 sq mi, about 264.5 people per sq mi.
How to pay Douglas County property tax
Search "Douglas County KS 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. Douglas 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 Kansas 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.