Buy-to-let Mortgage

Name: Buy-to-let mortgage rate comparison | Propp
Brand: Propp
Rating: 5 (2 reviews)

Introduction

Buy-to-let mortgages are built for property investors purchasing or remortgaging rental property.

Lenders focus on rental income, yield, and whether the numbers stack up, not just personal affordability. Get it right and it supports long-term growth.

We compare the market properly and do the heavy lifting, so your investment works harder.

Compare buy-to-let mortgages below.

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What people are saying

Customer service excellence

March 3rd, 2026

Friendly, timely and very professional service. Regular progress updates particularly appreciated. A very customer friendly/focused service.

David

Excellent service from start to finish!

February 24th, 2026

My experience with Propp has been first class! I was having issues with obtaining a mortgage through a high street lender, and after Propp took over, I was able to secure a bespoke mortgage. Communication throughout the process was excellent. Lauren and Sophie kept me constantly informed, and chased the mortgage lender when necessary. I would definitely recommend if you too are having difficulties securing a mortgage deal.

Steve

Excellent staff!

February 14th, 2026

Excellent staff with so much knowledge.

Lorraine

I can’t fault this service!

February 12th, 2026

I can’t fault the efficiency, communication and service of Propp. Everyone I have dealt with has been very quick to respond and have offered solutions when necessary. I would certainly use them again and wouldn’t hesitate to recommend.

Joanne

Kiera Talbert is an asset!

January 30th, 2026

Her customer service is second to none with constant updates and reassuring phone calls I have nothing but praise. Thank you!

Bobby

Excellent experience!

January 9th, 2026

Excellent experience with outstanding service provided by Senior Consultant, Abbie! Abbie was thoroughly engaging and courteous throughout, taking time to fully understand our needs and communicate very effectively. She’s a credit to the organisation and I’m very grateful for her help. Thanks, Abbie! Highly recommended!

Great customer service.

December 19th, 2025

Great customer service!

Stephen

Exceptional Service from Start to Finish

December 18th, 2025

I have been working with Propp since 2023 on financing and refinancing several properties, and they have been absolutely exceptional throughout. The team is highly knowledgeable, fully understands the market, and consistently goes above and beyond to ensure smooth and successful completions while securing the best possible rates. I have dealt with several team members, including Harriet, Joao and Kira, and every interaction has been professional, supportive and well-communicated. Deadlines are always met and you are kept informed at every stage. A special mention goes to Abbie, who has been an absolute guiding angel. Her knowledge, patience and support have been invaluable, and she is an incredible asset to Propp. She understands the process better than many solicitors I have worked with, and I genuinely could not have done this without her.

Customer

Great service from Propp.

December 18th, 2025

I had been using another broker who could not obtain a mortgage offer for me and Matt came to the rescue. A very stressful situation was turned around very quickly. Within 2 weeks I had a mortgage offer. Excellent communication from both Matt and Sophie. Everything was done promptly and efficiently. I will definitely be using Prott for any future mortgages.

Jane

Excellent company

December 10th, 2025

Excellent company smooth process and were able to meet nearly all the deadlines I had in place - would recommend and use again in the future.

Great service

December 4th, 2025

Lovely people great service

Angela

Professional team

November 26th, 2025

Great communication, straight forward process, they guided us step by step, very professional.

Renata

What is a buy-to-let mortgage?

A buy to let mortgage is a mortgage for those who would like to buy property as an investment. Buy-to-let mortgages work differently to residential mortgages, so if you are choosing to rent out your property lenders would require you to finance your purchase with a buy-to-let mortgage. You can also get commercial buy-to-let mortgages for landlords who want to invest in business property.

When you compare buy-to-let mortgages with Propp.io we do the challenging work for you. We will compare mortgage deals and buy-to-let lenders from across the market so you can find the best buy-to-let mortgage that suits you.

What is the difference between a buy-to-let mortgage and a residential mortgage?

A buy to let mortgage is mostly for landlords who want to buy property and rent it out. This means that the rules are slightly different for buy-to-let mortgages in comparison to residential mortgages. Let’s look at some of the differences, here:

The minimum deposit for a buy-to-let mortgage is usually 25% of the property's value, however this can vary between 20-40%.
Most buy to let mortgages are interest-only. This means you pay the interest each month, but not the capital amount. At the end of the mortgage term, you repay the original loan in full. You could do this by selling the property, or you could keep the property and take out another mortgage. However, some buy-to-let mortgages are also available on a repayment basis. This will mean higher monthly payments, but you’d build equity and own the property outright by the end of the term.
Buy-to-let mortgage rates are generally higher. This is because buy-to-let lenders tend to view tenants as higher risk than owner-occupiers.
What you can borrow is based less on what you earn, and more on the rent you charge tenants.

How much loan to value do I need for a buy-to-let?

A bigger deposit means a better mortgage deal!

We all know that a good deposit can help you get the best buy-to-let mortgage rates, but did you know that it could also help you get a lower loan-to-value rate?

That's right - if you're looking for a buy-to-let mortgage, chances are it'll have a lower loan-to-value than a residential mortgage. The largest loan-to-value rate on a standard residential mortgage is 95%, but most buy-to-let mortgages have loan-to-value rates of 75% or less (the average is around 65%). That means if you want to get the best deals on buy-to-let mortgages, then you'll need at least 25% of your property value as a deposit, plus extra funds to pay for things like fees and money you might need to spend on getting the property ready to take in tenants.

How much can you borrow for a buy-to-let mortgage?

The amount you can borrow for a buy-to-let mortgage doesn’t always depend on how much you earn. Instead, buy-to-let lenders will look at how much rent you’ll be able to charge. Rental income should normally be 25-30% higher than your monthly mortgage payments.

If you're looking for a buy-to-let mortgage, there are some lenders that won't approve you for one unless you have a certain amount of personal income. This is because the investment property may not be self-funding and would need an income from the tenant(s) in order to pay back the loan. The smallest amount of personal income typically needed is around £25,000

Two people sat in an office smiling whilst looking at a tablet

What type of buy-to-let mortgage do I get?

We know there are a lot of options when it comes to your mortgage, so we want to make sure you're making the right choice.

As with a residential mortgage, you can choose between a fixed rate or tracker rate mortgage.

Fixed rate mortgages are a bit more expensive than tracker rates, but they are also more predictable. They won't change in price over time. If you're worried that the base rate will increase soon and you might not be able to afford the higher monthly payments, it's best to choose a fixed rate mortgage.

Tracker rates work like this: your monthly payment will stay the same, but it could increase if interest rates go up. If you're confident that the base rate will stay low for several years and could afford an increase in mortgage payments, choose a tracker rate mortgage.

Do you pay stamp duty on a buy-to-let mortgage?

Yes. If you're looking to invest in a second home in the UK, you'll need to be prepared to pay a stamp duty surcharge.

If the property is worth more than £40,000 and the purchase will result in you owning more than one property, this is known as the Additional Stamp Duty Rate in England and Northern Ireland, and it's an extra charge of 3% minimum on top of your standard stamp duty bill. There's no stamp duty on properties worth less than £40,000 and there is also an exemption if the buy-to-let property is the first and only property that you will own.

Do buy-to-let mortgages have higher interest rates?

Yes, buy-to-let mortgages are typically about one percentage point more expensive than residential mortgages. This is because but-to-let lenders view tenants as a higher risk than owner-occupiers. Some buy-to-let mortgages also have high arrangement fees – as much as 3.5 per cent of the property value.

What are the benefits of a buy-to-let mortgage?

If you're a landlord, you know that renting out your property can be a great way to make money. But what are the benefits of a buy to let mortgage?

Well, for starters, demand for rental properties is high. Renting is a popular lifestyle choice and a necessity for many people who can’t afford to buy. With a lack of affordable housing and stricter mortgage underwriting criteria people look to rent as an alternative. This means that renting out your property should be relatively easy.

Secondly, property is a relatively safe long-term investment. Although the value of your property can fluctuate, over the long term the value of your property should increase and provide you with a profit when you come to sell it.

Finally, by renting out a property, you can generate an income. Your tenants will pay your mortgage for you, and you should also be left with some extra income each month.

Can you convert a residential mortgage to a buy-to-let mortgage?

When you're ready to get out of the rental market and into a buy-to-let mortgage, you'll need to talk to your current lender about getting permission for this change. If you don't switch over, you risk invalidating your mortgage contract and being asked to repay your whole loan at once.

Once you've got permission from your lender and know what type of fixed buy- to-let rates and fees are available, it can get a bit confusing. That's why it's so important to compare the options that will work best for you.

And remember as a property owner, there are responsibilities that come with the title. Don't forget to upgrade your buildings insurance to landlord's insurance and make sure you understand all your new responsibilities as a property owner!

Do I need to declare my buy to let income?

Yes. The income you receive as rent is taxable. You need to declare any rent you receive as part of your Self-Assessment tax return. The tax on your income is then charged as per your income tax banding.

How many buy-to-let mortgages can I have?

In short, there's no limit to the number of buy-to-let mortgages you can have.

But there are some buy-to-let lenders who will limit the amount of borrowing you do in total.

There are also lenders that will limit the number of buy-to-let mortgages you can have with other lenders. This can vary.

Some lenders don't mind how many buy-to-let mortgages you have with other lenders at all!

And lastly, what is a let-to-buy mortgage?

If you want to rent out a home you already own, and buy another home to live in yourself, then let-to-buy is the one for you.

Let-to-buy is a way to apply for two types of mortgages at the same time:

A buy-to-let re-mortgage for the property you’re moving out of and intend to let out
A residential mortgage for your new home

Comparison websites are a great starting point for anyone trying to find a buy to let mortgage that is tailored to their needs.

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