Cambridge, Somerville, Medford and Malden: Residential Tax Exemptions and Two-Family Loans

Updated October 2026

A two-family near Malden Center can solve a different housing problem than a Cambridge condominium: it combines a home with potential rental income. Along the Red and Orange Line corridors, compare the financing and ownership workload as carefully as the commute. Somerville’s Green Line connections and Medford’s varied transit access make station-level comparisons more useful than city labels alone.

Compare taxes after checking eligibility

Cambridge, Somerville and Malden offer residential exemptions for qualifying owner-occupants. Do not carry one city’s exemption amount, filing deadline or eligibility rule into another city’s budget. For Medford, obtain the current local tax treatment directly rather than assuming neighboring programs apply.

| Budget item | What to establish |

| Tax assessment | Current assessed value and fiscal-year rate |

| Residential exemption | Eligibility, application timing and first applicable bill |

| CPA surcharge | Local adoption, percentage and available exemptions |

| Escrow estimate | Whether the lender assumed an exemption |

Proposition 2.5 governs municipal levy limits; it does not freeze an individual parcel’s tax bill. Reassessments and approved exclusions can change payments. The Massachusetts Department of Revenue Division of Local Services explains the underlying tax framework.

Underwrite the second unit conservatively

All four communities are in Middlesex County, but a two-unit property uses a different conforming limit from a one-unit home. The 2026 baseline of $832,750 is the one-unit national reference, not the answer for every local multifamily purchase. Confirm the applicable county and unit count through FHFA Loan Limits.

Rental income generally requires documentation and lender adjustments. An advertised rent is not automatically qualifying income. Existing leases, appraisal rent schedules, vacancy allowances and your experience as a landlord can affect the calculation.

Also confirm that the second dwelling is legally recognized. A finished basement with a kitchenette does not establish an approved rental unit. Budget for maintenance, turnover and the possibility of an empty apartment without exhausting your emergency savings.

Make the offer support the ownership plan

For older two-families, investigate lead-paint records and Massachusetts Lead Law responsibilities, especially when young children will occupy either unit. Review tenant leases and security-deposit records alongside the physical inspection.

Massachusetts’ Offer to Purchase and Purchase & Sale sequence makes early attorney coordination valuable. Align lease review, inspection and mortgage-contingency deadlines before deposits become difficult to recover.

Run an owner-only payment and a conservative rental-income scenario in the monthly payment calculator. Then request a financing comparison that identifies reserve requirements and the exact income documentation needed.