Insurance is the purchase you make for the week you hope never comes, which makes it easy to buy badly — the cheapest quote looks identical to the right one until there is a claim. The way through is to ask claim-day questions on quote day.
What to ask
First and always: is short-term-rental use explicitly covered as the business activity, in the policy language, not in the agent's reassurance? Then: what is the liability limit, and are the amenities you actually advertise — pool, hot tub, bikes, a dock — covered rather than excluded? Is there loss-of-income coverage if a covered claim takes the calendar down for a month? How is guest-caused damage handled, and where is the line against wear and tear? And ask how a real claim proceeds: who you call, what documentation they want, and how long payment typically takes.
Red flags
An agent who shrugs when you say short-term rental — undisclosed commercial use is the classic way a homeowner policy fails at claim time. Relying on the platform's protection alone: AirCover is a host guarantee with conditions, not an insurance policy. A per-stay damage waiver being sold as if it replaces an annual policy — it layers on top of one. And exclusions buried for exactly the features your listing leads with; the hot tub in your hero photo should also appear in your coverage.
When you actually need it
The day the listing goes live is the honest answer — the exposure starts with the first guest, not the first incident. A lender will usually force the issue on financed properties. Revisit coverage when you add a high-risk amenity, when you scale into multiple properties (portfolio pricing changes the math), and at renewal, when quiet exclusion changes tend to arrive. Pair the annual policy with a per-stay layer once bookings are steady; most serious operators end up with both.