Cambridge, MA Property Tax Rate in FY2026: Why the Rate Isn't Your Bill
What are the key takeaways?
•The direct answer: Cambridge's FY2026 residential rate is $6.67 per $1,000 of assessed value — what the city says your home is worth for tax purposes — the lowest of the Greater Boston cities in the Somerville MA Real Estate Market Guide 2026.
•The myth: a low rate tells you what you'll pay. It doesn't — the rate is small partly because Cambridge home values are large.
•The reality: the bigger swing is the residential exemption — a discount for owners who live in the home — worth $3,403 in FY2026, per Ask Charles Cherney.
•The bottom line: budget off your assessed value and exemption status, not the seller's old tax line.
Why Doesn't the Rate Tell You What You'll Pay?
Cambridge's residential rate sits at $6.67 per $1,000 — the lowest in a Greater Boston comparison published in the Somerville MA Real Estate Market Guide 2026. Boston charges $12.40, Watertown $12.20, Somerville $10.98.
FY2026 Residential Tax Rates in Selected Greater Boston Municipalities
Comparison of FY2026 residential tax rates per $1,000 of assessed value for selected Greater Boston municipalities.
| Series | Label | Value |
|---|---|---|
| FY2026 Residential Tax Rate | Cambridge | $6.67 |
| FY2026 Residential Tax Rate | Newton | $9.69 |
| FY2026 Residential Tax Rate | Somerville | $10.98 |
| FY2026 Residential Tax Rate | Arlington | $11.02 |
| FY2026 Residential Tax Rate | Belmont | $11.51 |
| FY2026 Residential Tax Rate | Watertown | $12.20 |
| FY2026 Residential Tax Rate | Boston | $12.40 |
That low rate exists partly because businesses shoulder a heavy share of the load. Commercial property covers 62% of total tax revenue, Cambridge Day reported in September 2026.
But a low rate doesn't erase a high home value. Movoto puts the March 2026 median sale price at $1,012,000. At $6.67 per $1,000, that's roughly $6,750 a year before any exemption — an illustration, not a bill. Cambridge taxes assessed value, which typically runs lower than sale price, and Cambridge Day reports citywide assessed value dropped about $3 billion for a second straight year.
What Happens If One Owner Files for the Exemption and Another Does Not?
Two buyers of the same home type can end up with very different bills.
Owner-Occupant Filing vs Investor or Late Filer Tax Outcomes
Compares Cambridge FY2026 residential exemption status and filing-related tax risks for an owner-occupant who files versus an investor or late filer.
| Category | Option A: Owner-Occupant Who Files | Option B: Investor or Late Filer |
|---|---|---|
| Residential exemption | Yes — $3,403 (FY2026) | None |
| Main risk | Missing the filing window | Post-closing reassessment |
Option A: You qualify for the residential exemption. In FY2026, that discount shaves $3,403 off the bill, per Ask Charles Cherney. The catch is timing — eligibility hinges on who owned and lived in the home on a cutoff date set by the city. Confirm that date and the filing deadline with the Cambridge Assessing Department before you close. Miss either, and you're paying full freight for the year.
Option B: You don't qualify yet. You pay without the discount and may face a reassessment — the city revaluing your home closer to what you actually paid. Before bidding, pull two years of assessor cards, the Assessing Department's public record of how the city valued a property each year.
What Are the Strongest Arguments Against This?
"Cambridge is cheap by Massachusetts and national standards." True — $6.67 is the lowest rate in that Greater Boston comparison, and the $3,403 exemption cuts it further if you qualify. But the point was never that Cambridge is expensive. It's that your assessed value, your exemption status, and the rate itself can all shift. Cambridge Day reports the FY2027 proposal would push the residential rate to $6.95, a 4% increase, pending a Council vote. Statewide, total property tax collected across 343 communities climbed $1.2 billion, from $22.8 billion to $24 billion in FY2026, per Mass.gov.
"The exemption solves it." It helps, just not immediately. It only applies if you owned and lived in the home by the city's cutoff date, so a first-year buyer typically pays full price. Investors and late filers get no exemption at all, per Ask Charles Cherney.
What Should You Do Before the Next Bill Lands?
•Confirm your exemption is on file with the Cambridge Assessing Department.
•Pull two years of assessor cards before bidding — the listing's tax line reflects the seller's situation, not yours.
•If the Council adopts the proposed $6.95 rate, the same value would cost about 4% more. Use your own assessed value, not a sale price, and check the adopted FY2027 rate with the Assessing Department before setting the monthly amount your lender collects for taxes.
Cambridge's rate is genuinely low. But the two things that actually decide your bill — assessed value and exemption status — are both knowable before you close.
