If we rent it out, what does it actually earn? The vacation-homes page gives the honest framing — treat rental income as a way to offset carrying costs, not the reason to buy. This page is the data layer under that answer: what homes really rent for, how long the season really is, what the rules and taxes take, and what separates the houses that book solid from the ones that sit.
The season, measured honestly: Nantucket's rental year is short and extraordinarily concentrated. The bulk of demand lands between late June and Labor Day — call it ten to twelve prime weeks — with real shoulder demand around Daffodil Weekend in late April and the Christmas Stroll in early December, and a quieter trickle through fall. A house that books "the whole season" has typically rented 8–14 weeks, not 40. Every projection starts there.
| The house | Peak-week asking range |
|---|---|
| A 3-bedroom in good order | roughly $4,500–$6,500 / week |
| A well-located 5-bedroom | roughly $17,000–$20,000 / week |
| Harborfront, bluff & estate tier | roughly $30,000 to near $70,000 / week |
The ranges spread wide because location and condition move the number more than size does — walk-to-town position and real outdoor living push a house toward the top of its band.
Two caveats keep those numbers honest. First, they are asking rates — the strongest houses get them, average houses negotiate. Second, peak-week pricing decays fast into the shoulders: the same house asks materially less in June and September. When I run projections with clients we price week by week against comparable bookings, not peak-times-fourteen.
The regulatory picture stabilized in 2025–26, and it's covered fully on the short-term rentals page: STRs are now legal by right in nearly every zoning district — Town Meeting settled it in November 2025, and the Attorney General upheld the bylaw in 2026 — with mandatory annual registration: fee, $1 million liability coverage, a local contact reachable within two hours, and the registration number posted in the unit and in every ad. Roughly 800 homes entered the town registry as the system came online — worth knowing as a measure of how professionalized the market has become.
On top of that: stays of 31 days or fewer are taxed like lodging in Massachusetts — the state room-occupancy excise plus Nantucket's local option, collected from the guest but priced into what the market will bear.
And if the property is a condo, the master deed can prohibit short-term rentals outright regardless of town registration — the private restriction wins. Check it before you buy, not after.
The weekly rate is the headline; the owner keeps meaningfully less. The line items:
The pattern I see in practice: a genuinely rentable, well-run house can cover a real share of its carrying costs — taxes (low here, which helps the math), insurance, maintenance, management — and put meaningful income against the mortgage in strong years. What it will not reliably do is carry a high-end purchase outright. The buyers who are happiest bought the house first and the income second.
Demand is not evenly distributed, and the island's own patterns are consistent:
Within any neighborhood, the same features separate the bookers from the sitters: honest bedroom counts with the baths to match, outdoor living that photographs the way summer feels, parking, proximity to a beach or to town, a pool where lots allow it — and a proven rental history, which functions like a track record at resale. Compliant, well-reviewed houses command a premium twice: in rent while you own, and in price when you sell. For the island-wide numbers under all of this, the mid-2026 market report.
When I run this for a client on a specific house, the sequence is always the same. Start from comparable bookings, not comparable listings — what did houses like this one actually get last summer, week by week? Price the peak weeks and the shoulders separately, because the decay between them is where optimistic projections go wrong. Then subtract the full line-item stack — booking costs, turnover, management, the wear budget — before comparing anything to carrying costs.
Two sanity checks close the loop. First, the calendar test: every week you plan to rent is a week your family doesn't have the house, and most owners discover their real appetite for that is smaller than the spreadsheet assumed. Second, the registry test — a market with hundreds of registered, professionally run rentals is a market where an under-prepared house competes badly; the premium accrues to homes that photograph well, turn over smoothly, and carry a clean compliance record.
If the numbers only work at full-season occupancy and peak-week rates across the board, the numbers don't work. If they work at honest occupancy with the stack subtracted, you've found a house that genuinely earns part of its keep — and those exist here, in every price band.
Sean Kalman is a sixth-generation Nantucketer, a Nantucket REALTOR®, and the founder of The Kalman Co., brokered by eXp Realty. He runs rental math with real comparables, not brochure numbers. Reach him at sean@thekalmanco.com or 508-228-4578. Equal Housing Opportunity.