Grant County, WisconsinProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- 2026 property tax bills must be issued by December 21, 2026 (the third Monday in December) under Wis. Stat. §74.09(5); local municipal treasurers mail the bills.
- Payment deadline
- For 2026 taxes payable in 2027: first installment or full payment due January 31, 2027 to the treasurer named on the bill; second installment due July 31, 2027. Grant County states its online county portal handles current second installments due July 31 and delinquent taxes, while December/January payments are limited to listed municipalities and delinquent accounts.
- Assessment appeal
- 2026 appeal/protest dates are municipality-specific. Wisconsin DOR's 2026 Open Book/Board of Review calendar lists each municipality's dates; written or oral notice of intent to object is due at least 48 hours before the first Board of Review meeting, and PA-115A must be filed by the first two hours of that meeting.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
2026 Wisconsin Homestead Credit claims use Schedule H or H-EZ with the applicable 2026 Wisconsin income-tax filing; DOR's general filing deadline is the applicable income-tax return deadline, with late-claim rules controlled by DOR.
Senior relief
Wisconsin has no general age-based county homestead exemption. Older or disabled homeowners may qualify for the income-limited Homestead Credit, the Lottery and Gaming Credit, Veterans and Surviving Spouses Property Tax Credit, and WHEDA property-tax deferral loans for elderly homeowners.
Valuation limits
No general parcel-level annual valuation cap identified in Wisconsin. Municipal assessments follow state market-value and uniformity requirements; Wisconsin levy limits cap aggregate local levies, not individual assessed-value growth, while state credits and relief programs reduce qualifying tax bills.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.