Brookline General Fund forecast, FY2027 to FY2040
Brookline's budget to 2040
Voters approved an override in May 2026. This is an open forecast of what that buys, what decides whether it lasts, and how you can test every assumption yourself.
Three findings
a year of room between revenue and annual General Fund spending through the 2030s, with the override, if costs keep behaving the way they have since FY2011.
a year by FY2040: what each of four recurring decisions is worth. Pay settlements, the health plan, school staffing and the FY2031 pension turn matter far more than anything else, and none of them cuts a service.
a year by FY2040 for each tenth of a point of new growth, faster or slower. Renovation and commercial value add tax with little cost; new homes roughly pay their own way.
Where to start
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Will Brookline need a sixth override?10 min read
The short version: how Proposition 2½ works, why overrides keep coming, and what would actually change that.
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Forecast Explorerinteractive
Move pay, health premiums, enrollment, new growth and a dozen other assumptions, and watch revenue and spending through 2040.
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What decides Brookline's 2040 budget15 min read
The forecast itself: the base case, the decisions that move it most, and a step-by-step comparison with the Town's own long-range plan.
Go deeper
- New homes and Brookline's budget With enrollment falling and police and fire staffing flat, what a new home costs the Town between now and 2040.
- The full reference document Everything behind the forecast in five parts: how the money works, FY2005 to 2025, what kind of growth pays for itself, and where this leads. About two hours.
- Where the $177 million went Every dollar of growth in annual General Fund spending from FY2011 to FY2025, assigned to one of nine causes.
- Land value and growth maps Parcel-level maps of assessed value, where new growth came from, and value by neighborhood.
- The Excel model The same forecast as a workbook, with every assumption in one place.
- How does construction impact Brookline's Town finances? The May 2026 essay this work grew out of.
Why this differs from the Town's plan
The Town's long-range plan, presented in January 2026, shows a gap of about $43 million in FY2031. This forecast shows about $16 million of room that year. Most of the difference is the override, which passed four months after the plan was written, and school pay, where the Town's plan uses the School Department's forecast of about 5% a year and this one uses about 3.7%. The two forecasts answer different questions: a budget plan is deliberately cautious, and this asks what happens if costs and revenue keep behaving as they have. The forecast page walks through every step between them.
About this work
This is an independent analysis by Ben Chostner, a Town Meeting Member for Precinct 9. It is not an official Town document. It is built from the Town's published budgets, financial plans and assessment records, School Department budget documents, state data and enrollment forecasts, and every figure can be traced to its source.
If something here is wrong, I would rather know. Email .