Mortgages

Buy to Let Mortgages

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Mark Langshaw Lee Trett

Written by Mark Langshaw Reviewed by Lee Trett

Updated 22 January 2026 Fact-checked

22 January 2026

Hub page introduction, criteria and FAQs added

12 December 2024

First Published

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A Quick Overview on Buy to Let Mortgages

A buy-to-let mortgage is a type of mortgage you can use to buy property that you intend to let out to tenants. They work similarly to residential mortgages but the way affordability is assessed sets them apart. Rather than looking at your personal income, buy-to-let lenders will work out your maximum borrowing based on the property’s projected rental income.

The main differences between buy-to-let and residential mortgages are as follows:

  • Buy-to-let mortgages are for buying property to let out

  • Deposit requirements are higher for buy-to-let

  • Interest rates are generally higher

  • Most buy-to-let mortgages are interest-only

  • The majority of buy-to-let mortgages are unregulated

  • You pay a higher stamp duty rate

Read Our Comprehensive Buy to Let Mortgage Guide

Loan-to-Value (LTV) Ratio

Approximate Number of Willing Lenders

90-100%

None - seek professional advice

80-90%

30

70-80%

More than 60

60-70%

More than 70

50-60%

More than 70

Deposit requirements and other criteria

To get a buy-to-let mortgage, you often need landlord experience, strong credit history and a deposit of 15-25% of the property’s value. Putting down extra deposit funds will increase the number of available lenders and deals, as shown in the table here.

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Yes, usually. While buy-to-let lending is primarily based on the rental income the property will generate, many lenders still require you to have a minimum personal income (often around £20,000 and £25,000 per year) to ensure you can cover void periods or unexpected costs.

However, there are specialist lenders who have no minimum personal income requirements, provided the rental figures stack up.

Buy-to-let mortgages often have more flexible age caps than residential residential mortgages, but limits do exist. Many lenders require the mortgage to end before the borrower turns 70 or 75. However, there are specialist lenders who lend up to age 85 or even have no maximum age limit at all, making buy-to-let a popular option for supplementing retirement income.

On average, a buy-to-let mortgage application takes between 4 to 8 weeks from submission to offer. This can be faster than a residential mortgage because there is less scrutiny on your personal outgoings, but it can also be slower if the property requires a complex valuation or if you are buying through a Limited Company structure.

It depends on the condition of the property. If the property is considered "habitable" (it has a working kitchen, bathroom, and is watertight), you can usually get a standard buy-to-let mortgage. If the property is derelict, uninhabitable, or requires structural work, traditional lenders will likely refuse the application. In these cases, you may need bridging finance to purchase and renovate the property before switching to a buy-to-let mortgage once the work is complete.

No, mortgage lenders generally do not stipulate whether a property must be let furnished or unfurnished; this is a commercial decision for you as the landlord. However, the valuer will need to see that the property is in a lettable condition. It is worth noting that your choice to furnish can affect your initial costs and the type of tenant you attract, but it rarely impacts the mortgage offer itself.

Yes, although the criteria can sometimes be slightly different from residential loans. Lenders still run credit checks to ensure you manage your debts responsibly. While a few missed payments on a mobile phone contract might be overlooked by some specialist lenders, serious issues like recent CCJs or bankruptcy will limit your choice of lenders and likely result in higher interest rates.

Find a better buy-to-let mortgage deal on Money Helpdesk

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Think carefully before securing other debts against your home. Your home may be repossessed if you do not keep up repayments on a mortgage or any other debt secured on it.

If you are thinking of consolidating existing borrowing you should be aware that you may be extending the terms of the debt and increasing the total amount you repay.

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