Middlesex County, MA property tax deadlines
8 coming property tax dates for Middlesex County, Massachusetts. Each one links to its official source and shows the day LevyDay last checked it.
| Next dates | Bills due | Last day without penalty | Appeal by | Exemption filing |
|---|---|---|---|---|
| Middlesex | Nov 1, 2026 Sunmass.govOct 21 | Not on file | Feb 1, 2027mass.govOct 21 | Apr 1, 2027mass.govOct 21 |
Deadlines in date order
| Date and source | Deadline |
|---|---|
| February 1 every yearmass.govOct 21 | Appeal deadline Ask your assessors for an abatement Due with the first payment on the actual tax bill. That's usually February 1 in towns that bill quarterly, and usually 30 days after the actual bill is mailed in towns that bill twice a year. Your bill shows the date. |
| February 1 every yearmass.govOct 21 | Bills due Quarterly towns: third quarter (actual bill) due1 |
| April 1 every yearmass.govOct 21 | Exemption filing Apply for a personal exemption For seniors, veterans, blind owners and others. File with your assessors by April 1, or 3 months after the actual (not estimated) bills are mailed, whichever is later. |
| May 1 every yearmass.govOct 21 | Bills due Quarterly towns: last quarter due This is the second payment on the actual bill. Check your town's bill. |
| August 1 every yearmass.govOct 21 | Bills due Quarterly towns: first estimated bill due Towns say these dates apply generally. Check your bill. |
| November 1 every yearmass.govOct 21 | Bills due Quarterly towns: second estimated bill due1 |
| Varies, see rule set by noticemass.govOct 21 | Bills due Twice-a-year towns: each bill due Usually 30 days after the bill is mailed. |
| Varies, see rule set by noticemass.govOct 21 | Appeal deadline Appeal to the Appellate Tax Board Within three months of the date the assessors acted, not the date they mailed it. If they don't act within three months, it counts as denied, and you have three months from then. |
- Check your town's bill.
Appealing your assessed value
Appeal by Feb 1, 2027 in 101 daysmass.govOct 21
If you think the county valued your home too high, you can appeal. Filing with the county is free and you can do it yourself.
Get help filing an appeal
After you send your details, we look for an independent appeal firm or attorney to take your case. We'll be in touch once one has agreed. Firms usually charge a share of what you save, and the one that takes it may pay LevyDay a referral fee.
LevyDay doesn't file appeals or give legal or tax advice. We only pass your details on. The independent firm or attorney that takes your case does the work and sets its own fee.
Get help filing an appealGood to know in Massachusetts
- Paying late: When a bill becomes past due, the collector sends a demand notice. A demand has to go out before the town can start a tax taking. More mass.govOct 21
- Appealing your value: An appeal starts by filing an abatement application with your city or town's board of assessors, on the approved form. The forms are at the local assessors office. More mass.govOct 21
- Second homes and rentals: The tax bill goes to the owner of record as of January 1 of the previous year. Contact the assessors office to update your mailing address. More dunstable-ma.govOct 21
Places in Middlesex County
Among them: Arlington, Ayer, Belmont, Burlington, Cambridge, Cochituate, Devens, East Pepperell, Everett, Framingham, Groton, Hanscom AFB, Hopkinton, Hudson, Lexington, Littleton Common, Lowell, Malden, Marlborough, Maynard, Medford, Melrose, Newton, Pepperell, and 13 more. Every place in the county gets the dates above.
Nearby in the Massachusetts list
BristolDukesEssexFranklinHampdenHampshireNantucketNorfolkPlymouthSuffolkWorcester