Waltham Property Tax Lookup

Waltham property tax records include assessment values, ownership details, exemption information, and tax bill data for all parcels in the city. The Assessors Office at City Hall manages these records and provides an online search through Patriot Properties. Waltham is in Middlesex County and offers one of the more generous residential exemption programs in the area. This page covers how to search records, understand your assessment, and pay your tax bill in Waltham.

Find Waltham Property Records

The primary search tool for Waltham property tax records is Waltham Patriot Properties. You can search by address, owner name, or parcel ID. Each result includes the assessed value, property class, lot size, building details, sale history, and tax information. The system pulls from the Assessors Office database and is free for public use.

The screenshot below shows the Waltham Patriot Properties search portal, which is the starting point for looking up any property tax record in the city.

Each property card in the system gives a detailed breakdown. You can see how the assessor split the value between land and building, what condition grade the building received, and when the property last sold.

For a statewide perspective, you can also use the MassGIS Interactive Property Map. This map shows parcel boundaries and assessed values across all of Massachusetts. It is useful for comparing Waltham properties against those in neighboring cities. The local Patriot Properties tool will always have more current data for Waltham-specific searches.

The image below is from the MassGIS statewide property map, which can display Waltham parcels alongside properties in Cambridge, Newton, and other surrounding communities.

The state map updates periodically and may not reflect the most recent local changes. For the latest Waltham data, use the Patriot Properties portal.

Waltham Assessors Office

The Waltham Assessors Office is in the lower level of City Hall at 25 Lexington St, Waltham, MA 02452. The phone number is (781) 314-3200. Staff handle all assessments, exemptions, and abatement requests. They assess all property at full and fair cash value each year, as required by MGL c. 59, §38.

For FY2026, Waltham's residential rate is $10.32 per $1,000 of assessed value. That is one of the lower residential rates in Middlesex County. The commercial rate is $22.18, more than double the residential rate. This large gap reflects the city's heavy commercial and industrial tax base, which helps keep residential taxes lower. A home assessed at $600,000 would owe about $6,192 before exemptions. Tax bills go out quarterly, due August 1, November 1, February 1, and May 1. Late payments incur 14% annual interest.

Waltham Residential Exemption

Waltham's residential exemption is a major benefit for owner-occupants. For FY2026, the exemption removes $317,643 from the assessed value of qualifying homes. That is 35% of the average assessed residential value. At the $10.32 rate, this saves qualifying homeowners about $3,278 per year. To be eligible, you must own the property and use it as your primary residence as of January 1. You can find full details on the Waltham residential exemption page.

The exemption is not automatic. You must apply with the Assessors Office. The deadline is April 1 each year. If you own and live in your home but have never applied, you could be missing out on thousands of dollars in savings. The exemption shifts some of the tax burden onto non-owner-occupied residential properties, such as investor-owned rentals, which do not qualify.

Waltham also has other exemption programs. Seniors may qualify for exemptions under several clauses of MGL c. 59, §5. The city runs a Senior Work-Off Program that lets qualifying residents earn a tax credit by working part-time for the city. Veterans, blind residents, and surviving spouses have their own exemption categories. Each type has specific eligibility rules and its own application form.

Tax Payments and Appeals

Waltham accepts property tax payments online through InvoiceCloud. E-check payments are free. Credit card payments carry a convenience fee. In-person payments are accepted at City Hall. Mailed payments go to the Treasurer/Collector at 610 Main St, Waltham, MA 02452. Include your payment stub with any mailed check.

If you believe your assessment is too high, you can file for an abatement using Form ABT. The deadline is typically within 30 days after the third-quarter bill is mailed. Under MGL c. 59, §59, property owners have the right to seek a reduction if the assessed value exceeds fair market value. Gather comparable sales data and document any condition issues that affect your property's worth. If denied locally, you can appeal to the state Appellate Tax Board.

The state Senior Circuit Breaker Tax Credit is also available to Waltham residents 65 and older. This credit is worth up to $2,820 and is claimed on your state income tax return. It works in addition to local exemptions, so many seniors can benefit from both programs at once.

Middlesex County Registry of Deeds

Waltham deed records are filed at the Middlesex South Registry of Deeds. Search them online at massrods.com/middlesexsouth. The registry covers deeds, mortgages, liens, and land court documents for the southern Middlesex district. When a property sells in Waltham, the deed is recorded here and the Assessors Office updates its ownership records accordingly.

Under Proposition 2½ (MGL c. 59, §21C), Waltham's total tax levy can only grow by 2.5% per year plus new growth from construction. This law keeps total tax collections in check even when assessed values rise. For property buyers, deed searches help confirm ownership history and any liens or encumbrances on a parcel. Online searches at the registry are free to view. Certified copies cost a fee paid to the registry.

Nearby Cities

These cities near Waltham also maintain online property tax records.

Middlesex County Resources

Waltham is in Middlesex County. Visit the county page for more on registries, assessment tools, and tax data across all Middlesex communities.