Holiday Let Mortgages Explained (2026)

Quick answer: A holiday let mortgage is a specialist product for a property let to short-stay guests, and it's different from both a residential mortgage and a standard buy-to-let. The main things to understand in 2026: you'll typically need a deposit of at least 25% (often 30% or more, especially as a first-time holiday-let owner), lenders assess affordability on projected seasonal rental income rather than a fixed monthly rent, and the pool of lenders is smaller than for buy-to-let. Importantly, you usually cannot let a property commercially on an ordinary residential mortgage, doing so generally breaches the loan terms. We're not mortgage advisers, so this is a plain-English explainer to help you understand the landscape before you speak to an FCA-regulated broker.

If you're buying a property to run as a holiday let, financing it is one of the first practical hurdles, and it's an area where a lot of people assume their existing mortgage knowledge transfers across. It mostly doesn't. Holiday let mortgages have their own rules, their own way of assessing what you can borrow, and a much smaller set of lenders.

A quick but important point before anything else: we are not a mortgage broker or adviser, and nothing here is mortgage advice. GuestCharge helps holiday let owners with the running of their property (specifically, billing guests for EV charging), not with finance. Mortgage advice in the UK is regulated by the Financial Conduct Authority, and the right person to advise on your actual borrowing is a qualified, FCA-regulated broker. What this guide does is explain how holiday let mortgages work, so that when you do speak to a broker, you understand the landscape and can ask better questions.

Why a holiday let needs its own kind of mortgage

There are three ways you might finance a property, and only one of them fits a holiday let.

• A residential mortgage is for a home you live in. Most residential mortgages either prohibit commercial short-term letting outright or, with the lender's written consent, permit only limited hosting (some lenders allow up to around 90 nights a year). Running a full holiday let on a residential mortgage without consent generally breaches the terms of the loan, which can have serious consequences if discovered (penalty rates or even a demand to repay), so this is not a shortcut to rely on.
• A standard buy-to-let mortgage is for a property let to long-term tenants on an assured shorthold tenancy. It assesses affordability on a fixed monthly rent. Because a holiday let has no fixed tenancy and fluctuating seasonal income, most buy-to-let products don't fit, and letting a BTL property as a holiday let can likewise breach its terms.
• A holiday let mortgage is the specialist product designed for exactly this: a property let to short-stay guests with income that rises and falls through the year.

The practical takeaway: if you're buying to run a holiday let, you need a holiday let mortgage specifically, and you shouldn't assume an existing residential or buy-to-let arrangement can simply be repurposed.

How much deposit you'll need

Holiday let mortgages require larger deposits than residential mortgages. As a general guide for 2026:

• 25% deposit (75% loan-to-value) is the typical minimum with most lenders.
• 30% to 35% is common, particularly for first-time holiday-let owners or less straightforward properties.
• A small number of lenders go to 20% deposit, and a few will stretch to 80% LTV for very strong applications.

So plan on at least a quarter of the purchase price as deposit, and potentially a third. The exact figure depends on the lender, the property, and your experience as a holiday-let owner.

How lenders decide what you can borrow

This is the part that differs most from a normal mortgage, and it's worth understanding because it catches people out.

A residential lender looks mainly at your salary. A buy-to-let lender looks at a fixed monthly rent. A holiday let lender looks at projected seasonal rental income, because a holiday let earns very different amounts in August versus February.

In practice, lenders typically:

• Use a projected income figure for the property, often from a specialist or RICS valuation, blending high, mid and low season rates.
• Apply that blended figure across a set number of weeks (commonly around 30) to get an annual income estimate. As an illustration drawn from one lender's published method: high season £900/week, mid £620, low £400 averages to £640, applied over 30 weeks for roughly £19,200 of assessable annual income. (That's an example of the method, not a figure for any specific property.)
• Stress-test that income, requiring it to cover the mortgage payment by a margin (commonly 125% to 145%) at a stressed interest rate (often in the region of 6.5% to 8.5% in 2026), to check the loan stays affordable if rates rise or bookings dip.

Two other things lenders commonly look for:

• A minimum personal income separate from the holiday let, often somewhere around £20,000 to £40,000, so you're not wholly dependent on the rental.
• Some lenders allow "top-slicing", using surplus personal income to support the application where the projected rental income alone doesn't quite stretch.

You don't need to memorise these numbers. The point is to understand that a holiday let is assessed on projected, seasonal, stress-tested income, which is why a realistic income projection for your specific property matters so much, and why lenders favour properties in established holiday areas with genuine year-round letting potential.

Two further things worth knowing. Holiday let mortgage rates tend to sit a little higher than equivalent buy-to-let rates (commonly around 0.5% to 1% more), reflecting the lender's view of the income as less predictable. And most holiday let mortgages cap the owner's own personal use of the property, often at around 60 to 90 days a year, because the lender wants it run primarily as a let rather than as a second home. If you plan to use the place yourself a fair amount, that's a criterion to check.

Why the lender pool is smaller (and why a broker matters here)

Far fewer lenders offer holiday let mortgages than buy-to-let or residential ones. Many are building societies and specialist lenders rather than the big high-street banks, and their criteria vary widely on deposit, minimum income, acceptable property types, and how they treat projected income.

This is genuinely the situation where a specialist holiday let mortgage broker earns their keep. Because the market is fragmented and criteria differ so much between lenders, a broker who knows which lender suits which circumstance can save you both the legwork and the risk of a declined application denting your credit file. We say this not because we have any arrangement with brokers (we don't, and we're not advisers), but because for a niche, criteria-heavy product, broker access to the whole market is the practical route most owners take.

How the 2025 tax changes connect

One thing worth flagging, because it affects the wider numbers rather than the mortgage itself: the abolition of the Furnished Holiday Lettings regime in April 2025 changed how mortgage interest is treated for tax. You can no longer deduct mortgage interest in full from your rental income; instead you get a 20% basic-rate tax credit, which matters most for higher-rate taxpayers. That doesn't change whether you can get a mortgage, but it does change the after-tax cost of the borrowing, so it's worth factoring into your sums. We cover this in detail in our guide to holiday let tax in 2026.

What to take to a broker

To make the conversation productive, it helps to arrive with:

• A sense of your deposit (and therefore your likely LTV).
• A realistic income projection for the property, ideally based on comparable local listings rather than optimism.
• Your personal income details, since most lenders want to see income beyond the let itself.
• An understanding of the property's letting potential (location, year-round appeal, any planning or use-class considerations).
• Awareness of the regulatory and tax position (see our guides to holiday let rules and tax), since lenders increasingly ask about compliance.

The bottom line

A holiday let mortgage is a specialist product, not a tweak to a residential or buy-to-let one, and trying to run a holiday let on the wrong kind of mortgage can breach your loan terms. Expect a deposit of at least 25% (often more), affordability assessed on projected seasonal income rather than salary or fixed rent, and a smaller pool of mostly specialist lenders, which is exactly why most owners use a broker. None of the figures here are a quote or a promise; they're the shape of the market in 2026 to help you have a sharper conversation with a qualified adviser.

For the parts of running a holiday let we do help with, see our guide to starting a holiday let, and once the property's up and running, GuestCharge handles billing guests for EV charging.