Most UK short-let operations break even between 42% and 55% occupancy — roughly 155-200 booked nights a year — with leverage the single biggest driver. Unleveraged, a mortgage-free property typically breaks even nearer 22-28%. The formula is simple enough to run on a napkin: break-even occupancy equals your fixed annual costs divided by the annual revenue you would earn at 100% occupancy, adjusted for the share of revenue that varies with bookings.
The detail
Work it through. A two-bed at a £130 nightly rate would gross £47,450 at 100% occupancy. Fixed costs: £9,600 of interest on a £240,000 interest-only mortgage at 4%, £1,900 council tax, £2,400 utilities and broadband, £450 specialist insurance, £1,000 furnishing sinking fund — £15,350 in total. Variable costs run about 32% of revenue once you add the platform fee, a manager at 15% and cleaning at roughly £55 a changeover. Break-even revenue is therefore £15,350 / 0.68 = £22,573, and £22,573 / £47,450 gives a break-even occupancy of 47.6%.
The sensitivity that surprises people is the mortgage. On that £240,000 loan, each additional percentage point of interest adds £2,400 of fixed cost, which pushes break-even occupancy up by about five points. Going from a 4% to a 6% product moves the break-even from 48% to 58% — from comfortably achievable to genuinely tight in most regional markets.
The two levers you actually control are nightly rate and minimum stay. A £15 increase in achieved nightly rate drops break-even by roughly five points. A three-night minimum stay cuts cleaning cost per booked night by around 40%, but typically costs eight to twelve points of occupancy — so it helps if you were going to clear 60% anyway and hurts if you were going to scrape 45%.
The numbers that matter
Where this stops holding
Break-even occupancy assumes your nightly rate holds as occupancy rises, and it does not. You buy the last fifteen points of occupancy with discounts: a listing achieving 75% at a headline £130 usually got there by dropping to £100-£110 through the shoulder months, so the real relationship is a curve, not a line, and the true break-even sits a few points higher than the formula says. The calculation also ignores year one, when a listing with no reviews typically runs 30-50% below its mature rate and almost never breaks even.
Sources
Get this answered for your address
A HostPal Invest report runs the real occupancy, nightly rate, RevPAR, regulation risk and a buy / wait / avoid verdict for one specific property or drawn area, in any of 117 markets — not a national average. Street-Level reports from £29.