Short-term rental advisory in Potomac

35.0% of Potomac housing units count five or more bedrooms, yet a county short-term rental can host only six adult overnight guests. Size isn’t the pitch.

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Short-term rental advisory

Short-term rental advisory answers the questions that decide whether an Airbnb actually pays: county licensing and host rules, realistic occupancy and nightly rates, setup costs, and whether a long-term lease would quietly earn more.

Short-term rental rules in Potomac cap how much of a big house you can actually rent. The 2020-2024 Census survey counts 5,878 Potomac homes with five or more bedrooms, 35.0% of the stock. Montgomery County’s zoning code limits a short-term rental to six overnight guests aged 18 or older, and two per bedroom. Under that rule, a six-bedroom house hosts no more adults than a three-bedroom one. That changes the revenue math before you buy a single bed.

Residency is the bigger rule. The county treats a short-term rental as part of a home someone lives in: it must be where the owner, or someone the owner authorizes, actually lives. With 84.8% of Potomac’s occupied homes owner-occupied, that fits how most houses here are used, but it rules out buying a second house to run as a nightly rental. When the owner isn’t present, the cap is 120 days a calendar year.

License fees and taxes follow. As of FY27, the county license costs $500 a year. Guests owe the county’s transient tax of 7% plus Maryland’s sales tax of 6% on lodging. Ask your platform which of them it collects. One off-street parking space per booking is required unless the listing prohibits parking. Add cleaning, furnishing and platform fees, and the margin narrows. A lease often nets more with far less work.

We model nightly income against a standard lease before you commit. Short-term rental advisory explains the service. The long-term alternative is laid out in renting out your house in Potomac, and lease pricing in rental price analysis in Potomac. Should a sale look better on paper, ask a Potomac real estate agent to price it. Short-term rental advisory in Bethesda deals with a market full of non-resident owners.

Where We Work

Potomac

County rules apply across most of Potomac because it’s unincorporated land. Addresses inside Rockville city limits follow the city’s rules instead, so we check the line first. HOA and condo documents can still ban short stays outright, especially in townhouse communities and condo buildings. Large houses on big lots can host within the guest cap but need a clear parking plan. We read your HOA documents and check the parking layout before modeling a single night. The license application comes after that, not before. Insurance is the last check, since standard homeowner policies may exclude paying guests.

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Answered

Potomac, answered.

Q: Can I run an Airbnb in my Potomac house? A: Only in your primary residence, with a county license. Montgomery County licenses short-term rentals solely in the home where the owner or an owner-authorized resident actually lives, and the license costs $500 a year. When you’re away, Potomac hosts are capped at 120 days a calendar year. Q: How many guests can a Potomac short-term rental host? A: Six adults at most. The county’s zoning code limits overnight guests aged 18 or older to six, with no more than two per bedroom. A five- or six-bedroom Potomac house can’t be marketed to its full sleeping capacity, which changes the revenue math. Q: What taxes apply to short-term rentals in Potomac? A: Two, at minimum. Montgomery County charges a 7% transient tax on room rental, and Maryland’s 6% sales and use tax covers transient accommodations. Some platforms collect them for you, so confirm what your Potomac listing’s platform handles before the first booking.

Sources

Last reviewed October 2, 2026 by Levi Loveless, licensed in Maryland and Virginia. Every rule, rate and figure on this page links to the source we checked.

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Check residency and the guest cap first.

Tell us about the house and how you’d use it. We’ll confirm the residency rule fits, read any HOA limits, count guests and parking against the county caps, and compare nightly income with a standard lease. Then you decide.