How the math works
A merger changes everyone's school taxes, but why? Here's the whole idea in plain English, using the real FY27 numbers. No spreadsheet required.
First: how is a school tax rate even set?
It's really just one recipe, every year:
- 1
Add up everything the schools spend in a year.
- 2
Divide it by the number of students. That's the cost per student.
- 3
The state turns cost-per-student into your town's tax rate.
So if you can lower the cost per student, you lower the tax rate. Keep that in mind. 👇
Now: the merger trade-off
There are two kinds of towns today
Run their own K-8 schools and pay tuition so each family can choose their teen's high school. The catch: outside HS tuition typically costs more per pupil than what it would cost to educate that same student in-district, so the dollars that leave the district carry a premium the local K-8 budget has to make up year after year. When budgets get tight, cuts can land almost entirely on the local K-8 school. Their school-tax rate is higher today.
Run a full K-12 system, including their own high school. Their school dollars stay in the district and support every grade, so budget decisions cover the whole system, not just the youngest students. With no tuition leaving the district, their tax rate is lower today.
Right now, those two towns pay MASD about $1.25 million a year
Some Hartland and Weathersfield students already attend MASD schools, and MASD provides shared services. So money flows in to MASD, which helps keep Windsor & West Windsor taxes down.
If everyone merges, that $1.25 million disappears
In one district, there's no more “paying your neighbor.” You can't pay tuition to yourself. It's all one budget now. So MASD gives up that income. This is the catch.
Everyone goes onto one combined cost-per-student
In one district, all the spending is pooled and divided by all the (weighted) students to get a single cost-per-student. That one number sets the rate for the whole district, then it's adjusted for each town. It's one system, measured the same way for everyone. That pooling is the first reason the rate comes out lower for every town, and there's a second, 👇
And merging dodges Vermont's spending penalty
One more piece of the recipe: Vermont counts spending above a per-pupil threshold ($16,470) twice when it sets your rate. So a district that runs over the line pays for that overage again; its rate is set as if it spent even more. On its own, each of these districts is over the line, so each gets ballooned. Merged, the pooled budget lands under the threshold, and the penalty is gone.
Spending over the $16,470 line is counted twice. Hartland, for example, spends $17,983 per pupil, $1,513 over the line, so its rate is set as if it spent $19,496.
Going it alone, all three are above the cap, so the penalty (counted twice) is baked into their rates today. Merged, the budget lands below the cap and the penalty disappears, part of why merging lowers rates. Source: Vermont Joint Fiscal Office, May 2026 (FY27 data as of 5/18/26).
The result: everybody pays less
On a $250,000 home, every town's bill drops. Hartland saves the most, about $1,484/year, and Weathersfield about $695. Even though MASD gave up $1.25 million, Windsor and West Windsor still save (about $498 and $463 a year). Everyone comes out ahead. (Bars show the tax rate: dollars per $100 of value.)
That's the whole idea.
MASD gives up about $1.25 million a year, but pooling everyone's costs lowers the cost per student, so every town's rate falls. Now go try it with your own home value:
These are FY27 estimates for the full three-district merger (MASD+HSD+WSD). The two-district options work the same way, with just the towns involved. Full sources are in the estimator's “See the math” panel.