Buy to let mortgages

Explore our buy to let mortgage options

Step 1: Find out what we could offer you

  • Get a personalised indication of how much you could borrow in less than 10 minutes
  • It won't impact your credit score.

Step 2: Ready to apply for your new mortgage?

  • Apply online today or contact us if you'd like support.
  • Save progress and come back whenever you like.

What are buy to let mortgages?

A buy to let, or buy to rent mortgage is for a landlord who wants to buy a property to rent out. 

The application is similar to a residential mortgage application but with a few differences. These differences include the amount you could borrow and how much deposit you will need.

If you would like more help, see our guide.

Choosing a buy to let mortgage

Take a look and compare our buy to let mortgage rates.

We offer fixed rate mortgages on a capital and interest repayment and an interest only basis.

Use our mortgage calculator to compare the options available to you, see the different interest rates, mortgage terms and compare monthly payments.

Eligibility and responsibilities

Buy to let mortgage eligibility

The following criteria applies for NatWest buy to let mortgage applications:

  • You're a UK resident aged between 18 and 80
  • Your expected rental income to be at least 125% of your monthly interest payments
  • You have at least a 25% deposit, or 35% for any new build houses or flats
  • The property is worth at least £50,000
  • You're borrowing at least £25,000 over a minimum of 3 years
  • Your total aggregated borrowing with NatWest brands will be less than £3.5 million

We will not consider multiple tenancies, Homes of Multiple Occupancy (HMO), bedsits, ‘Related Person’ tenancies, properties that fall under a selective licensing scheme or properties that will be used as a holiday home or holiday let.

You cannot apply for a buy to let mortgage with us if you do not meet the above criteria.

Understand your responsibilities as a landlord

There are many requirements that you need to adhere to when renting out a property. These include contracts, deposit protection and certificates for the gas and electric. 

Your responsibilities as landlord

Green buy to let mortgages

Are you buying or remortgaging an energy efficient property with a valid Energy Performance Certificate (EPC) rating of A or B? If so, we're now offering new loan to value options and discounted 2 year and 5 year fixed rate green Buy to Let mortgages.

NatWest Green Mortgages are available to over 18s purchasing or remortgaging a property with a valid Energy Performance Certificate (EPC) rating of A or B. Available on selected products marked with 'Green Mortgage'. Exclusions and eligibility criteria applies. Product fees apply. Max LTV 75% (for new build flats or houses a maximum LTV of 65% applies).

Applying for a buy to let mortgage

How it works

There's a few steps to take, depending on your circumstances.

We'll outline everything you need to do and consider when you take out a buy to let mortgage with us. 

Already have a BTL mortgage with us?

If you're ready to switch your current mortgage to a different deal, or just want to have a look at what we have on offer, you can get started by logging into Manage your Mortgage.


How to borrow more on your NatWest mortgage

Buy to let mortgage frequently asked questions

How do buy to let mortgages work?

Buy to let (BTL) mortgages are similar to the residential mortgages you find but there are differences when it comes to a buy to let mortgage, including: minimum deposit requirements, interest rates, minimum property value requirements and borrowing limits.

Find out more with our buy to let mortgage guide

Are buy to let mortgages interest only?

BTL mortgages are most commonly interest only mortgages, but we offer both capital and interest and interest only mortgage types for buy to let.

With an interest only mortgage, you only pay off the interest on a monthly basis throughout the term of your mortgage, however at the end of your term you are required to pay off the capital debt (the outstanding mortgage amount) in full. With a capital and interest mortgage, you pay off both the capital debt and the interest on a monthly basis.

Use our mortgage rate finder to compare rates available to you or learn more about mortgage interest rates.

How much can I borrow with a buy to let mortgage?

It depends on multiple factors including the property value, amount of deposit and rental income for the property. You could borrow up to a maximum of £3.5 million (in total across NatWest brands) with our buy to let mortgages. 

Use our buy to let mortgage calculator to find out how much you could borrow and compare our rates, or for a more personalised indication, you can complete an Agreement in Principle.

How much deposit do I need for a buy to let mortgage?

You will need a deposit of at least 25% to be eligible for a buy to let mortgage or, if you’re looking to buy a new build flat or house, you’ll need a minimum deposit of 35%.

How can I remortgage my buy to let?

If your mortgage is up for renewal and you are looking to remortgage to us, you can complete a buy to let Agreement in Principle (AIP) to compare our mortgage rates and find out how much you could borrow.

Need some help?

Call us if you need additional support or technical help

Something else we can help you with?