Renting a Cape Cod Summer House: What the Massachusetts Rules Mean for Guests

A week in a shingled cottage is the backbone of most Cape Cod summers. It is also a contract with a stranger, often signed months ahead and paid largely in advance. Massachusetts has had a specific law for this market since 2019, and knowing how it works helps you tell a properly run rental from a risky one before you send money.

How big the rental market is

The Cape is not a place where vacation homes are a side note. A state housing analysis published on Mass.gov reports that 36 percent of housing units on Cape Cod are held for seasonal, recreational or occasional use. As of July 2024 there were about 43,400 short-term rentals on the state registry, and half of them were in Barnstable County, even though the county has only 6 percent of the state’s housing. Roughly one in ten homes in the county is registered as a short-term rental, and in Provincetown the share reaches 27 percent. Dennis is among the towns with the largest number of registered rentals.

That supply is good news for choice, but it also means you will be comparing many listings from many kinds of hosts: individual owners, property managers, real estate offices and booking platforms.

What counts as a short-term rental

The Massachusetts Department of Revenue defines a short-term rental as an occupied property that is not a hotel, motel, lodging house or bed and breakfast establishment, where at least one room or unit is rented through advance reservations. Apartments, houses, cottages and condominiums all qualify. Month-to-month leases, tenancies at will and time-shares do not.

Length matters. The state room occupancy excise applies to short-term rentals of 31 days or less. If a stay runs longer than 31 consecutive days, the TIR issued by the department says no excise is imposed on any part of it, including the first 31 days. For most summer guests renting a week or two, the stay is squarely inside the rules described here; the tax side is covered in detail in Cape Cod Rental Taxes Explained: The 5.7 Percent, the Local Rate and the Water Fund Excise.

The registration check you can do yourself

Every operator, including owners who only rent through an intermediary, must register with the Department of Revenue through MassTaxConnect and obtain a Certificate of Registration for each property. The department says the certificate must be posted in the property, and a copy or the certificate number must be given to any intermediary the operator uses. If a platform cannot get that certificate, the department may ask it to remove the listing.

For a guest, that creates two practical checks:

• Ask for the certificate number before you pay a deposit. A registered host or manager will have it.
• Search the Public Registry of Lodging Operators on Mass.gov. By law it shows only the street name and the city or town of a rental, not the full address, so treat it as a sanity check that the operator exists rather than proof of a specific house.

Registration with the state is not the only layer. The department notes that cities and towns may have their own registration or licensing requirements for rentals, so a host in one town may have obligations that a host in the next town does not.

Who you are actually dealing with

The law sorts the people involved into roles. The operator is whoever runs the rental; it can be an owner, a lessee, a sublessee, a mortgage holder or a licensee, and it does not have to be a Massachusetts resident or business. An intermediary is anyone else who helps arrange the rental and collects the rent, such as a broker, a hosting platform or an operator’s agent. An operator’s agent includes a property manager, a property management company or a real estate agent.

Whoever collects your money also collects the tax. The department explains that when an intermediary collects the rent, the intermediary is responsible for collecting and remitting the taxes and fees, and the operator does not report those amounts. When an owner takes payment directly, the owner files the return.

Deposits and fees are not the same thing

Under the 2019 rules, taxable rent includes every amount you pay in exchange for occupancy, including optional charges. The department lists insurance, linen fees, cleaning fees and booking fees as examples. Specifically excluded is a bona fide refundable security deposit.

That distinction is worth reading for in your contract. A charge described as a non-refundable cleaning deposit is, in practice, a fee. A deposit that comes back to you after an inspection should say so, along with when it will be returned and what can be deducted.

What to get in writing

The state defines a rental contract as an agreement that creates a binding obligation between the operator, intermediary or agent and the occupant for a set period. Beyond that, the contents are up to the parties. Before you sign, make sure the document answers these questions:

• The exact dates and check-in and check-out times.
• The full price, with rent, each fee and each tax listed on its own line.
• Which amounts are refundable, and on what terms.
• The cancellation policy, including what happens if a storm or a ferry cancellation stops you from arriving.
• What the house supplies: linens, towels, beach gear, parking spaces, an outdoor shower.
• Rules on pets, the number of guests and cars, and quiet hours.
• A name and phone number for problems during the stay.

Pay attention to one clause the department itself suggests to operators. Because the tax rates in effect on the date of occupancy are the ones that apply, the department says operators may want contracts to state that taxes and fees are as of the date of occupancy. If your contract says that and your town raises its local rate before you arrive, the tax on your bill can go up even though the rent does not.

When a rental is not taxed at all

Some guests notice there is no occupancy tax on their bill and wonder whether something is wrong. There are legitimate reasons. Owners who rent a property for 14 days or less in a calendar year do not have to collect tax, although they still must register and claim that exception by January 15. A bed and breakfast home, which the department defines as an owner-occupied house renting no more than three rooms with breakfast included, is not subject to the tax and does not need to register. Rent of less than $15 per day is also untaxed.

Once the house is booked, the next decisions are about getting there and getting around. Start with Choosing a Cape Cod Town for Your Summer Base: Ferries, Beaches, Trails and Weather Compared if you have not picked a town yet, and read Crossing the Cape Cod Canal: The Sagamore and Bourne Bridges and the Replacement Plan before planning your arrival day.