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Cambridge

Massachusetts · United States
Restricted
Last updated: 2026-07-29  ·  Last verified: 2026-07-29  ·  Region: US

At a Glance — Cambridge Airbnb & STR Rules

RuleDetails
Regulatory StatusRestricted — rules apply
Permit / License RequiredYes
Tax RateMassachusetts state Room Occupancy Excise Tax: 5.7% state + up to 6% local option. Cambridge imposes the local option. Operators must register with Ma
Night / Day CapNo explicit annual day cap, but STR is defined as rental of less than 30 consecutive days (proposed 2025 amendment reduces threshold to 28 days). Only
Minimum StayNo minimum stay specified (STR defined as under 30 consecutive days; proposed 2025 amendment: under 28 days).
Permit FeeCertificate of Registration: $500 one-time fee (or $100/year over 5 years on payment plan). Business Certificate required per Massachusetts General La
PenaltiesOperating without a Certificate of Registration subjects operator to enforcement by the Inspectional Services Department. Specific fine amounts not pu
Primary Residence RequiredYes
Occupancy LimitUp to 3 individual bedrooms for operator-occupied STRs; 1 dwelling unit for owner-adjacent STRs. Must comply with all State Building and Sanitary Code
Browse all 10 STR regulations in Massachusetts → Browse all 535 STR regulations in United States →

Cambridge Airbnb & Vacation Rental Regulation Overview

Cambridge Short-Term Rental Regulations Overview

Short-term rentals in Cambridge, Massachusetts are allowed but subject to significant restrictions under local regulations as of 2026. Hosts operating on Airbnb, VRBO, or other vacation rental platforms must obtain proper licensing: Yes. The associated permit fees are Certificate of Registration: $500 one-time fee (or $100/year over 5 years on payment plan). Business.

Tax Requirements for Airbnb Hosts in Cambridge

Short-term rental operators in Cambridge should be aware of these tax obligations: Massachusetts state Room Occupancy Excise Tax: 5.7% state + up to 6% local option. Cambridge imposes the local option. Operators must register with Massachusetts DOR via MassTaxConnect. Platforms like Airbnb typically collect and remit on behalf of h.

Hosting Rules and Restrictions in Cambridge

Key operational rules for vacation rental hosts in Cambridge include: Primary residence requirement: Yes. Rental day cap: No explicit annual day cap, but STR is defined as rental of less than 30 consecutive days (proposed 2025 amendment reduc. Occupancy limit: Up to 3 individual bedrooms for operator-occupied STRs; 1 dwelling unit for owner-adjacent STRs. Must comply with all St. Minimum stay: No minimum stay specified (STR defined as under 30 consecutive days; proposed 2025 amendment: under 28 days)..

Zoning and Location Requirements in Cambridge

Zoning considerations for short-term rentals in Cambridge: STRs permitted as an accessory residential use in all districts where residential use is allowed, per Zoning Ordinance Section 4.60. Must not be used as a principal transient accommodation. Building m. Density rules: No density cap per se, but structural limits apply: operator-occupied limited to 3 bedrooms; owner-adjacent limited to 1 adjacent unit. No investor/no. Insurance: Not explicitly required by ordinance, but Business Certificate and full building code compliance man.

Penalties for Non-Compliance in Cambridge

Hosts who fail to comply with Cambridge's short-term rental regulations may face enforcement action. Operating without a Certificate of Registration subjects operator to enforcement by the Inspectional Services Department. Specific fine amounts not publicly codified in search results — verify with IS.

Platform Obligations in Cambridge

Platform obligations for services like Airbnb, VRBO, and Booking.com operating in Cambridge: Platforms must only list registered STRs. Certificate of registration number must be available. Statement of Responsibility Form required from operator. Business Certificate (Mass. General Law) requir.

Full Regulatory Details

Regulatory Status
Restricted
License / Registration
Yes
Tax Registration
Yes
Permit Fee
Certificate of Registration: $500 one-time fee (or $100/year over 5 years on payment plan). Business Certificate required per Massachusetts General Law. Annual renewal via Inspectional Services Department (ISD). Pre-registration inspection by ISD required.
Primary Residence Rule
Yes
Night / Day Cap
No explicit annual day cap, but STR is defined as rental of less than 30 consecutive days (proposed 2025 amendment reduces threshold to 28 days). Only two operator types permitted: Operator-Occupied (host lives in unit, rents up to 3 bedrooms) and Owner-Adjacent (host owns all units in ≤4-unit building, lives in one unit, rents adjacent unit).
Occupancy Limit
Up to 3 individual bedrooms for operator-occupied STRs; 1 dwelling unit for owner-adjacent STRs. Must comply with all State Building and Sanitary Code requirements (ceiling height, ventilation, room size, egress, life safety).
Tax Rate
Massachusetts state Room Occupancy Excise Tax: 5.7% state + up to 6% local option. Cambridge imposes the local option. Operators must register with Massachusetts DOR via MassTaxConnect. Platforms like Airbnb typically collect and remit on behalf of hosts.
Zoning Restrictions
STRs permitted as an accessory residential use in all districts where residential use is allowed, per Zoning Ordinance Section 4.60. Must not be used as a principal transient accommodation. Building must be an existing dwelling.
Minimum Stay
No minimum stay specified (STR defined as under 30 consecutive days; proposed 2025 amendment: under 28 days).
Density Rules
No density cap per se, but structural limits apply: operator-occupied limited to 3 bedrooms; owner-adjacent limited to 1 adjacent unit. No investor/non-owner STRs permitted.
Insurance Required
Not explicitly required by ordinance, but Business Certificate and full building code compliance mandatory. Owner-adjacent operators must maintain accurate books and records available for ISD inspection.
Platform Obligations
Platforms must only list registered STRs. Certificate of registration number must be available. Statement of Responsibility Form required from operator. Business Certificate (Mass. General Law) required.
Compliance Notes
Cambridge has one of the most restrictive STR frameworks in Massachusetts — only owner-occupied or owner-adjacent configurations are legal. No investor-owned whole-home STRs permitted. A 2025 proposed ordinance amendment (CMA 2025-176, dated Jun 23, 2025) proposes reducing the STR definition threshold from 30 to 28 consecutive days and minor application documentation updates. ISD conducts pre-registration and renewal inspections.
Effective Date
Zoning Ordinance Section 4.60 effective April 1, 2018 (applications accepted from Oct 1, 2017). 2025 amendment proposed Jun 23, 2025 — verify final adoption status.
Key Notes
Primary residence requirement must be proven by: (1) enrollment in Cambridge residential tax exemption program, OR (2) affidavit with photo ID, property title/tenancy agreement, and government/utility correspondence within last 3 months. No whole-home investor rentals. Non-owner STRs are prohibited.
Penalties
Operating without a Certificate of Registration subjects operator to enforcement by the Inspectional Services Department. Specific fine amounts not publicly codified in search results — verify with ISD.
Additional Context
Cambridge's STR rules are codified in Zoning Ordinance §4.60 (Ordinance #1397). The 2025 amendment (CMA 2025-176) represents the most recent regulatory activity. Massachusetts state law (M.G.L. c. 64G) governs the room occupancy excise tax framework applicable to all Cambridge STRs.
Sources
City of Cambridge STR Registration Page: https://www.cambridgema.gov/iwantto/registerashorttermrental
Cambridge Zoning Ordinance §4.60 (Ordinance #1397): https://www.cambridgema.gov/-/media/Files/CDD/ZoningDevel/Amendments/Ordinances/zngamend_1397_shorttermrentals.pdf
2025 Amendment (CMA 2025-176): https://www.cambridgema.gov/-/media/Files/CDD/ZoningDevel/Amendments/2025/shorttermrentals/cma2025176.pdf
STR Guide (ISD): https://www.cambridgema.gov/~/media/Files/inspectionalservicesdepartment/shorttermrental/shorttermrentalguide.pdf
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Frequently Asked Questions

Is Airbnb legal in Cambridge?

Airbnb and short-term rentals are legal in Cambridge but subject to restrictions. Hosts must comply with local permit requirements and zoning rules. Cambridge has one of the most restrictive STR frameworks in Massachusetts — only owner-occupied or owner-adjacent configurations are legal. No investor-owned whole-home STRs permitted. A 2025 proposed

Do you need a permit for Airbnb in Cambridge?

Yes. Cambridge requires the following for short-term rental operation: Yes.

What taxes apply to short-term rentals in Cambridge?

Short-term rental hosts in Cambridge are subject to the following tax obligations: Massachusetts state Room Occupancy Excise Tax: 5.7% state + up to 6% local option. Cambridge imposes the local option. Operators must register with Massachusetts DOR via MassTaxConnect. Platforms like Airbnb typically collect and remit on behalf of hosts..

What are the penalties for illegal Airbnb hosting in Cambridge?

Hosts who operate without proper permits in Cambridge may face enforcement. Operating without a Certificate of Registration subjects operator to enforcement by the Inspectional Services Department. Specific fine amounts not publicly codified in search results — verify with ISD..

What are the key STR compliance requirements in Cambridge?

Primary residence requirement must be proven by: (1) enrollment in Cambridge residential tax exemption program, OR (2) affidavit with photo ID, property title/tenancy agreement, and government/utility correspondence within last 3 months. No whole-home investor rentals. Non-owner STRs are prohibited.

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