On any Ashwaubenon home listed this fall, the property tax figure probably comes from the 2025 bill. That bill was calculated on an assessment the village has since replaced. The village carried out a full revaluation for the 2026 assessment year, with notices to owners expected in September, and adjourned its Board of Review on September 30, 2026. The December 2026 bill will be the first one based on the new numbers. For homes, those numbers went up a lot more than for the rest of the village's tax base.
If you're comparing Ashwaubenon with De Pere, Hobart or Green Bay this winter, the headline tax rate understates the cost. The village's proposed rate is going down. For a typical home, the dollar amount it applies to has gone up faster than the rate came down.
The September Notices Reset Every Assessment in the Village
The Village of Ashwaubenon's revaluation notice, dated April 13, 2026, set up a village-wide revaluation for the 2026 assessment year. The state's records show the results. The Wisconsin Department of Revenue's Statements of Assessment for 2025 and 2026 give these totals for Ashwaubenon by property class:
| Property class | 2025 assessed value | 2026 assessed value | Change |
|---|---|---|---|
| Residential | $1,592,456,900 | $1,867,119,400 | about +17% |
| Commercial | $1,919,743,400 | $2,127,895,300 | about +11% |
| Manufacturing | $223,741,400 | $259,146,400 | about +16% |
| All real estate | $3,736,831,800 | $4,255,399,900 | about +14% |
Part of the residential growth comes from new parcels. The residential parcel count went from 5,525 to 5,589. Divided by parcel count, the average residential assessment still rose about 16%, from roughly $288,200 to roughly $334,100, while the average commercial assessment rose about 10%.
Most of That Jump Is Catch-Up, Not One Year of Gains
The DOR's assessment ratio compares assessed values to market value. For Ashwaubenon it was 0.909 in 2025 and 1.012 in 2026. Before the revaluation, assessments ran at about 91% of market value. Now they sit right around market. Much of the increase closes that gap between assessed and market value.
The state also measures market change for the most recent year separately, and that figure is much smaller. The DOR's 2026 Statement of Changes in Equalized Values puts the economic change in Ashwaubenon's residential property at 4% for 2025. Commercial property went down 3%. Counting new construction, Ashwaubenon's total equalized value grew 2%, while Brown County as a whole grew 7%.
Home sale prices in the county tell a similar story. The Wisconsin REALTORS Association's September 2026 report shows a Brown County median sale price of $360,000 for September 2026, up 2.0% from a year earlier. The year-to-date median through September was $375,000, up 7.1%. Prices rose, but nowhere near 16% in one year. The revaluation moves accumulated home value growth onto a single bill.
A 9.65% Rate Cut Against a 16% Average Increase
The village's 2027 budget hearing notice, dated November 3, 2026, shows the proposed tax levy going from $15,089,145 to $15,566,326. That's an increase of $477,181, or 3.16%. Over the same period, the proposed village mill rate falls from 5.03015 to 4.54492, a decrease of 9.65%.
The rate comes down because the base it's spread over grew about 14%. At the proposed rate, a property whose assessment rose more than about 10.7% pays more on the village portion than it did in 2025. Here is the village portion of the bill for an illustrative home that rose by the per-parcel residential average, using the proposed rate:
- 2025 assessment of $300,000 at 5.03015 per $1,000 comes to about $1,509.
- The same home after a 15.9% revaluation is assessed at about $347,700.
- At the proposed 4.54492 rate, that's about $1,580, or roughly 5% higher.
- A commercial property that rose by its per-parcel average of about 10.4% would see its village portion stay essentially flat.
This only covers the village's share. The school district, Brown County and the technical college set their own levies, and they all show up on the same bill. The village numbers are proposals until the Village Board acts on them. The village has scheduled the public hearing, final levy recommendation and budget adoption for its November 24, 2026 meeting at 5:30 p.m. at Village Hall, 2155 Holmgren Way. Individual homes will differ from the average too, so one house on a street can come out well above the illustration and the house next to it well below.
Why the Shift Lands on Homes in Ashwaubenon in Particular
In most Brown County communities, homes make up most of the tax base. In Ashwaubenon, commercial property does. In 2025, commercial property was about 51.4% of the village's assessed value and residential was about 42.6%. After the revaluation, commercial is about 50.0% and residential is about 43.9%.
That's a shift of about 1.3 percentage points, applied to a levy of $15.6 million. When the commercial property that has been carrying half the base loses market value, as the DOR's −3% economic change shows it did, the cost moves to the classes whose values held up. In 2025, that was homes.
A lower village rate and a larger homeowner share of the levy arrive together on the December bill.
What This Changes in a Purchase This Winter
For a buyer, the main risk is underbudgeting. Lenders and buyers often use the most recent tax bill to estimate escrow. Until the December bill arrives, the most recent one on an Ashwaubenon home is the 2025 bill, figured on assessments that ran about 9% below market. If you're under contract between now and the end of the year, these questions are worth answering:
- What is the 2026 assessed value? The September notice already set it. Compare it to the 2025 figure behind the tax amount on the listing.
- Has the 2026 bill been issued? Until it has, any estimate rests on the proposed village rate and on the other taxing bodies' rates.
- How is proration handled? If the closing documents split the 2026 taxes using 2025 figures, the result will be different than if they use the actual 2026 bill.
- Who gets paid, and when? According to the village's property tax collection page, mailed payments have to be postmarked by January 31, 2027. Second installments go to Brown County, not Village Hall. If an installment isn't paid in full by its due date, the entire bill comes due, with interest and penalties.
Sellers have something to gain from this too. A listing that shows the 2026 assessment next to the 2025 tax figure answers the escrow question before a buyer's lender brings it up. It also keeps a higher December bill from turning into a fight during the closing period.
The revaluation also changes how Ashwaubenon compares with nearby communities. The DOR's 2026 assessment ratios for neighboring communities range from 0.988 in De Pere to 0.773 in Hobart and 0.691 in Green Bay. Assessments in Hobart and Green Bay run further below market, so their mill rates look higher. You can't compare tax rates across communities directly without adjusting for these ratios.
Quick Answers
My assessment went up 16%. Did my home gain 16% in value? Most likely not in a single year. The village's assessment ratio went from about 0.91 to about 1.01, so much of the increase brings old assessments up to current market value. The DOR estimates that residential values in Ashwaubenon rose about 4% in 2025.
Is the 4.54492 village rate final? It's the proposed rate from the November 3 budget notice. The Village Board is scheduled to act on the levy and rate on November 24, 2026.
Will every homeowner's bill go up? Not necessarily. It depends on how much each property's assessment changed compared with the overall base, and on the levies set by the school district, the county and the technical college.
This post is general information, not tax, legal or financial advice. Please confirm your own assessment, bill and closing figures with the village, your lender or a tax professional.
If you're buying or selling in Ashwaubenon this winter and want the tax line checked against the 2026 assessment before you sign, Matt Jorgenson Real Estate can go through the numbers with you. Book a consultation.