Massachusetts

In Massachusetts property is assessed for local tax purposes at its full and fair cash value as of January first of each year.  Every three years, a community's assessments must be reviewed by the Commissioner of Revenue and certified as meeting legal standards.  Adjustments to assessments made in the years between this triennial certification to reflect changes in market conditions must also meet legal standards, although they are not subject to annual review by the Commissioner.

Resources about assessment may be available at the Massachusetts Association of Assessing Officers site here

Some areas are available through Vision Appraisal Technologies, with registration. You can also search real estate sales records in Massachusetts from 1994-present here. Many municipalities link through Patriot Properties

City	Multiplier	Phone Number	Additional Information
Abington			Abington Assessor
Acton	1	978-264-9622	Acton Assessor
Acushnet		508-998-0205	Acushnet Assessor
Adams		413-743-8350	Adams Assessor
Amesbury		978-388-8102	Amesbury Assessor
Amherst	1	413-256-4024	Amherst
Andover			Andover Assessor
Arlington	1	781-316-3050	Arlington
Arlington			Arlington Assessor
Ashby		978-386-2427	Ashby Assessor
Athol
Attleboro		508-223-2222	Attleboro Appraisal
Barnstable County			Barnstable County (links to towns and villages) Barnstable County Registry of Deeds
Barnstable		508-862-4022	Barnstable Assessor
Bedford		781-275-0046	Bedford Assessor
Belchertown	1	413-323-0413	Belchertown
Bellingham			Bellingham Assessor
Belmont	1	617-489-8231	Belmont Assessor
Berkshire	1	413-637-5502
Beverly	1	978-921-6004	Beverly
Billerica		978-671-0971	Billerica Assessor
Blackstone			Through Vision Appraisal
Boston (city)		617-635-4287	Boston Assessor
Bourne		508-759-0600	Bourne Assessor
Braintree (town)		781-794-8050	Braintree Assessor or Direct to Search (through Patriot Properties)
Brewster	1	508-896-3701	Brewster Assessor
Brookline (town)	1	617-730-2060	Brookline
Burlington (town)		781-270-1650	Burlington Assessor
Cambridge	1	617-349-4110	Cambridge
Canton		781-821-5008 and 5009	Canton Assessor
Charlton		508-248-2233	Charlton Assessor
Chatham	1	508-945-5103	Chatham
Chelmsford			Chelmsford
Chelsea	1	617-889-8213	Chelsea Assessor
Chicopee		413-594-1430	Chicopee Assessor
Chilmark		508-645-2102	Chilmark Assessor
Concord	1	978-318-3070	Concord
Danvers		978-777-0001 ext. 3057 or 3058	Danvers Assessor
Dartmouth			Dartmouth
Dedham	1	781-326-1995	Dedham Assessor Searchable through VisionAppraisal
Dennis	1	508-394-8300	Dennis Assessor
Dover	1	508-785-0726	Dover Assessor
Dracut	1		Dracut
Dudley	1		Dudley
Dunstable		978-649-3257	Dunstable Assessor
Duxbury	1.09	781-934-6586	Duxbury Assessor
Eastham			Eastham
Easthampton			Through Vision Appraisal
Easton		508-230-3416	Easton Assessor
Edgartown (Martha's Vineyard)	1	508-627-6140	Edgartown
Egremont	1	413-528-0182
Essex County (North)	1		Essex Registry of Deeds
Essex County (South)			Essex Registry of Deeds
Everett	1	617-394-2205	Everett Assessor
Fall River	1	508-324-2300	Fall River Assessor
Falmouth	1	608-861-7611	Falmouth Assessor
Fitchburg		978-345-9562	Fitchburg Assessor
Framingham		508-532-5415	Framingham Assessor
Franklin		508-520-4920	Franklin Assessor
Freetown		508-644-2205	Freetown Assessor Or through Appraisal Resource
Fitchburg	1	508-345-9562
Gardner			Gardner
Georgetown			Georgetown (requires free registration)
Gloucester	1		Gloucester (information in person or by mail only – no phone)
Greenfield		413-772-1506	Greenfield Assessor
Greenwich	1.3 (2005 values, revaluation for 2009)	203-622-7885	Greenwich Assessor
Groton		978-448-1127	Groton Assessor
Hadley	1	413-586-6320	Hadley Assessor
Hampden		413-566-3223 (bd of assessors) 413-525-5425 (East Londmeadow bd of assessor)	Hampden Registry of Deeds
Hanover	1	781-826-6401	Hanover Assessor
Hanson	1	781-293-5259	Hanson Assessor
Harvard			Harvard (requires free registration)
Harwich	1	617-631-0236	Harwich Assessor
Haverhill (city)			Haverhill Assessor
Hingham		781-741-1455	Hingham Assessor
Holden	1	508-829-0222	Holden Assessor (link to Vision Appraisal)
Holland			Through Vision Appraisal
Holliston			Holliston
Hopkinton		508-497-9720	Hopkinton
Hudson			Through Vision Appraisal
Lakeville			Through Vision Appraisal
Leicester	1	508-892-7001	Leicester
Leominster	1	978-534-7531	Leominster
Lexington	1.03	781-862-0500 ext. 203	Lexington
Littleton	1	978-952-2309	Littleton Assessor
Longmeadow	1	413-565-4115	Longmeadow Assessor
Lowell		508-970-4200	Lowell Assessor (links to searchable database; need free registration)
Lynnfield (town)		781-334-2231	Lynnfield
Manchester		978-526-2010	Manchester Assessor
Mansfield			Mansfield (requires free registration)
Marblehead	1	617-631-0236	Marblehead
Marion	1	508-748-3504	Marion
Marlborough			Marlborough
Marshfield			Through Vision Appraisal
Mashpee		508-539-1400 x529	Mashpee
Mattapoisett			Through Vision Appraisal
Medford	1	617-393-2431	Medford Assessor (links to searchable database; need free registration)
Melrose (City)		781-979-4104	Melrose Assessor
Methuen			Methuen Assessor
Middleboro			Middleboro
Milbury			Milbury Assessor
Nantucket	1 (may be a bit higher)	508-228-7211	Nantucket Assessor (through Vision Appraisal)
Natick			Natick Assessor
Needham	1	781-455-7507	Needham Assessor
Northampton		413-587-1200	Northampton
North Attleboro