Holiday let mortgages sit in a specialist corner of the UK property finance market, distinct from both residential and standard buy-to-let lending. If you're considering investing in a holiday cottage, coastal apartment or countryside retreat to let out short-term, here's what to expect.
Why holiday lets need a different mortgage
A standard buy-to-let mortgage typically requires an Assured Shorthold Tenancy with a long-term tenant, and most lenders' terms explicitly prohibit short-term or holiday letting. A holiday let mortgage, by contrast, is specifically designed to allow — and assess affordability around — short-term guest stays, often booked through platforms or holiday letting agencies.
How affordability is assessed
Because holiday let income is seasonal and less predictable than a standard tenancy, lenders typically ask for projected rental income figures from an independent local letting agent, often covering both peak and low season, and may average or weight these figures conservatively (sometimes using a "low, medium, high season" blended estimate) rather than assuming peak-season income year-round.
Deposit requirements
Holiday let mortgages generally require a minimum deposit of around 25%, similar to buy-to-let, though the pool of lenders offering holiday let products is smaller and more specialist, so shopping around (or using a broker familiar with this niche) matters even more here.
The Furnished Holiday Letting (FHL) tax rules
Historically, properties that met Furnished Holiday Letting qualifying criteria — broadly, being available to let for a minimum number of days per year and actually let for a minimum period, without long-term occupation by the same guest — benefited from more favourable tax treatment than standard buy-to-let, including full mortgage interest deductibility and access to certain capital allowances. Tax rules around furnished holiday lettings have been subject to significant reform, so always confirm the current position with an accountant or HMRC guidance before relying on any specific FHL tax treatment.
Running costs specific to holiday lets
- Higher furnishing and interior standards expected by short-term guests
- Cleaning and changeover costs between every stay, often far more frequent than a standard tenancy
- Booking platform or letting agent commission fees
- Higher utility costs, often included in the nightly rate rather than charged to a long-term tenant
- Specific holiday let insurance, covering public liability for paying guests and periods of vacancy
- Local licensing or planning requirements, increasingly relevant in some popular holiday destinations introducing short-term let registration schemes
Location and seasonality risk
Unlike a standard rental, income can be highly seasonal and location-dependent — a coastal property might be fully booked all summer but largely empty in winter. It's worth stress-testing your own affordability against a genuinely conservative low-season income estimate, not just the headline annual projection a letting agent might provide.
Should you self-manage or use a letting agency?
Self-managing can improve your margin but requires significant time for guest communication, cleaning coordination and maintenance — particularly challenging if the property isn't local to you. A specialist holiday letting agency typically charges a higher commission than a standard buy-to-let letting agent (often 15–25%) but can handle marketing, bookings, cleaning and guest support.
Worth reading next: our guide on Buy-to-Let Mortgage Rules Explained for UK Landlords, and Offset Mortgages Explained: How They Work.
To run your own numbers, try our Mortgage Affordability Calculator.
The bottom line
Holiday let mortgages open the door to a potentially lucrative but genuinely more hands-on and seasonally variable form of property investment than standard buy-to-let. Success depends on realistic income forecasting, understanding the specific tax rules that apply, and budgeting properly for the higher running costs that come with hosting short-term guests.