$1,400–$2,100Typical monthly host earnings
8–15%Typical annual ROI
65–70%Average annual occupancy
VariesCombined taxes and local fees
Decision pointSomerville STR Investment Decision
Somerville permits short-term rentals only in an operator’s primary residence, so eligibility comes before revenue modeling.
- Confirm the address is a residential unit in Somerville and the proposed operator actually uses that unit as a primary residence.
- Do not underwrite a separate investment property, an adjacent unit, or a commercial operation as a lawful Somerville short-term rental.
- Distinguish a shared unit, where the operator remains present, from an autonomous unit, where the operator leaves during the stay.
- Check the deed, lease, condominium documents, insurance policy, and lender terms before relying on short-term-rental income.
- Build a property-specific forecast only after City registration, state tax registration, inspection, and operating constraints are confirmed.
EligibilitySomerville Short-Term Rental Eligibility
Only the operator’s primary residence qualifies, and the ordinance defines the proof required.
- The operator must reside in the unit for at least nine months of a 12-month period or intend to do so for nine of the next 12 months.
- Proof includes a deed or lease, a driver’s license or state identification, and another residency document tied to the rental address.
- A tenant may apply, but the property owner must sign the required approval affidavit and statement of responsibility.
- The unit cannot have outstanding building, sanitary, zoning, or fire-code violations, abatement orders, or stop-work orders.
- Congregate living, elderly housing, group residences, shelters, temporary dwellings, transitional housing, hotels, motels, and other nonresidential uses do not qualify.
ApplicationSomerville STR Registration Application
A City certificate of registration is required before a new short-term rental begins operating.
- Create a CitizenServe account, choose “Apply for a License,” and select “Short-Term Rental Registration” as the application type.
- Provide the rental address, owner and operator contacts, shared or autonomous unit type, and a 24-hour emergency contact who can respond in person within two hours.
- Upload proof of primary residence, City responsibility forms, any owner approval, a floor plan with guest bedrooms and egress paths, state tax registration, and proof of insurance.
- Provide links to every listing before certificate issuance and use no more than one consistent listing per booking platform for the unit.
- Pay the $50 initial filing fee, complete ISD review and inspection, then pay the remaining $200 before the certificate is issued.
Registration termSomerville Registration and Renewal
A Somerville certificate expires on March 31 and does not transfer automatically.
- Operators may apply for renewal beginning February 1 before the March 31 expiration date.
- A renewed certificate issued during that period expires the following March 31.
- A tenant whose lease ends before the certificate expires must submit new proof of primary residence before the lease end date.
- The certificate is tied to the eligible unit, owner, and operator and does not automatically survive a sale or new lease.
- Post the City certificate inside the unit and place its registration number on every short-term-rental listing.
Operating rulesSomerville Short-Term Rental Operations
Shared and autonomous units have different attendance and annual-day rules.
- A shared unit may operate throughout the year only while the operator remains in the residence and keeps one bedroom for personal occupancy.
- An autonomous unit may be rented for no more than 90 total calendar days per year while the operator is away.
- Each stay must last at least ten consecutive hours and fewer than 28 consecutive days; hourly rentals are prohibited.
- Only one guest party may occupy the unit at a time, with no separate rental of bedrooms, beds, or spaces to different customers.
- Occupancy is limited to ten guests or two guests per guest bedroom, whichever is fewer, and commercial meetings or uses are prohibited.
Safety and insuranceSomerville STR Safety and Insurance
Inspection, egress, emergency response, and liability coverage are part of approval.
- ISD performs a pre-certificate inspection and may require corrections before approving an application or renewal.
- Post a floor plan showing guest bedrooms and egress paths inside each guest bedroom for the safety inspection.
- Maintain at least $1 million in liability insurance for each short-term rental and verify that any platform coverage meets Massachusetts requirements.
- Keep a local emergency contact available by telephone 24 hours per day and able to respond in person within two hours.
- Post waste and recycling instructions, parking information, the City noise ordinance, emergency contact details, and the registration certificate inside the unit.
Taxes and feesSomerville Lodging Taxes and Fees
Registration costs $250, and taxable stays generally carry state and local room excise.
- Somerville charges a $250 City registration or renewal fee, collected as a $50 filing fee and $200 balance after approval.
- Massachusetts applies a 5.7% state room occupancy excise to short-term rentals of 31 days or less, subject to statutory exemptions.
- Somerville has adopted a 6% local room occupancy excise, bringing the base state and local rate to 11.7% before any other applicable fee.
- Register the operator and each property with the Massachusetts Department of Revenue through MassTaxConnect and obtain the property certificate.
- Confirm who collects and remits tax for each booking channel because an intermediary may handle tax while the operator remains responsible for registration and records.
ComplianceSomerville STR Compliance and Enforcement
Registration can be suspended, and each day of a violation may count as a separate offense.
- If a code violation or order is issued after registration, short-term-rental use must stop until the problem is cured or resolved.
- Three or more municipal, state, or building-code violations within six months make units at the property ineligible for at least six months.
- The City may use noncriminal penalties, seek an injunction, and notify booking agents about an unlawful listing.
- Retain residency, owner-consent, and rental-day records for as long as the unit is used as a short-term rental.
- Recheck current City and state requirements before acquisition, renewal, or a material change in ownership, tenancy, unit configuration, or operations.
Contacts and supportSomerville Short-Term Rental Contacts
Use City and Commonwealth offices for written, property-specific confirmation.
Sources and reviewSomerville and Massachusetts Sources
Reviewed against official City and Commonwealth materials on September 28, 2026.
For a Somerville property strategy call, bring the address, ownership or lease status, proof-of-residence plan, proposed shared or autonomous use, and operating budget. Plan a Somerville Property Strategy Call
