Brown County, Wisconsin property-tax payment and appeal deadlines
Tax bills, payment rules, and valuation-review windows are controlled by the local jurisdiction and the governing state framework. The reviewed record below separates published figures from items that still require confirmation with Brown County Planning and Land Services / Property Listing and Brown County Treasurer; municipal assessors perform local valuation.
Rate context
Confirmno single countywide effective rate is published; Wisconsin property-tax rates vary by municipality, school district, and other taxing jurisdictions.
Statement mailing
PublishedApproximately December 10, 2026 — Brown County's Treasurer page publishes approximately December 10; the exact 2026 day was not confirmed.
Payment deadline
PublishedFor 2026 Wisconsin property taxes payable in 2027: full payment or the first installment is due January 31, 2027 to the local municipal treasurer; the second installment is due July 31, 2027 to the county treasurer. Late payments become delinquent under Wisconsin Statutes §§74.11, 74.12, and 74.85 and accrue statutory interest and penalty.
Valuation protest
PublishedExact 2026 dates are municipality-specific, not countywide. Wisconsin DOR's 2026 Open Book/Board of Review calendar says sessions generally occur late May through mid-June; written or oral notice of intent is due at least 48 hours before the first Board of Review meeting, and the written PA-115A objection is due before or during the first two hours of that meeting.
Do not assume a grace period.
The reviewed record identifies the payment timing above but does not establish a universal penalty schedule for this page. Late charges, interest, collection costs, tax-sale procedures, and lien or foreclosure timelines can depend on state law and the local collector’s process. If the deadline is close or a balance is delinquent, contact the tax collector directly and request the current payoff amount in writing.
Treat a published payment deadline as a hard operational date and retain your receipt or confirmation number.
From assessment to collection
01Valuation and notice
Review the assessment notice as soon as it arrives. The protest window may run from the notice date rather than from the payment due date.
02Statement and account review
Match the tax statement to the parcel or account number and confirm exemptions, assessed value, taxing units, credits, and balance.
03Payment confirmation
Use the official collector channel, then save the receipt, transaction reference, and date posted. A bank submission is not always the same as a county posting date.