Colourful townhouses on a UK residential street, representing buy-to-let and portfolio landlord mortgages

Buy-to-Let & Portfolio Landlord Hub

Buy-to-let lending has changed more than any other part of the mortgage market over the last decade. Tax treatment, stress testing, portfolio rules and now the Renters’ Rights Bill have all moved, and the structure that suited a landlord five years ago may not be the one that suits them today.

This hub pulls together our buy-to-let pages, the calculators that let you sanity-check a deal before you offer, and the guides covering the questions landlords actually ask us.

How buy-to-let lending is assessed

Unlike a residential mortgage, a buy-to-let mortgage is assessed primarily on the rent the property produces rather than your personal earnings. Lenders apply an interest cover ratio, stress-testing the rent against a notional interest rate rather than the rate you will actually pay.

That stress test is where deals are won and lost. Two lenders looking at identical circumstances can reach materially different answers, and the structure you borrow through changes the calculation as well as the tax position.

Personal name or limited company?

Personal ownership is simpler and cheaper to set up. A limited company or SPV structure changes how profits are taxed and how mortgage interest is treated, which is why a large share of portfolio landlords now buy through one. Lender choice, pricing and stress tests all differ between the two.

There is no universally right answer — it depends on your wider tax position, your plans for the portfolio and whether you need to draw income from it. Take advice from a qualified accountant or tax adviser before deciding, and read our comparison of personal versus limited company buy-to-let first so the conversation is a productive one.

Portfolio landlords

Once you hold four or more mortgaged buy-to-let properties, you are a portfolio landlord in regulatory terms and applications change character. Lenders will want a property schedule, will stress-test the whole portfolio rather than just the subject property, and will look at aggregate loan-to-value and rental cover.

Refinancing a portfolio is often where the most value sits — consolidating onto better rates, releasing equity for the next purchase, or restructuring ahead of a change in circumstances.

Related finance for landlords

Secured loans and second charge mortgages — raise capital without disturbing a competitive existing rate
Bridging finance — auction purchases, chain breaks and properties that are not yet mortgageable
Remortgages and product transfers — at the end of a fixed term
Commercial mortgages — where a property is mixed-use or wholly commercial
Development funding — for landlords moving into conversions or ground-up schemes

Work out the numbers

Buy-to-let yield and stress test calculator — gross yield and indicative rental cover
Stamp duty calculator — including the additional property rates
Mortgage repayment calculator — capital and interest, or interest only

Buy-to-let mortgages: a complete guide for landlords and investors
Personal versus limited company: which structure wins?
Expat buy-to-let mortgages — for British nationals living overseas
Remortgaging in the UK
Second charge mortgages versus remortgaging
High net worth mortgages and large loans
The Renters’ Rights Bill — what it changes for landlords
Stamp Duty Land Tax and Inheritance Tax
Frequently asked questions

If you are buying to live in it

Lending against a home you will occupy is assessed on your income rather than rental cover, and is regulated differently. That work is covered in our Residential Mortgage Hub — first-time buyers, remortgages, self-employed applicants, adverse credit and larger loans.

Where we advise

Buy-to-let is the most evenly spread of our workloads. Dagenham and Rainham handle a steady flow of single-property and small-portfolio landlords across the RM and IG postcodes, where yields tend to work more easily than in central London. Putney deals with higher-value and limited company cases, and with expat landlords holding UK property from overseas. Willenhall covers portfolio refinancing across the West Midlands. See areas we cover for the postcodes each office serves.

Speak to an adviser

Send us the property, the expected rent and how you intend to hold it, and we will tell you what is achievable and which lenders are worth approaching. Call 020 8088 2211 or send an enquiry. All of our advisers are qualified and regulated to advise on the products they recommend.

Giles Finance is a trading style of Giles Finance & Consultancy Services, authorised and regulated by the Financial Conduct Authority (FRN 726857).
YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE.
Most commercial mortgages, buy-to-let lending and bridging finance are not regulated by the Financial Conduct Authority. Your property may be repossessed if you do not keep up repayments on any loan secured against it. Nothing on this page is tax advice; consult a qualified accountant or tax adviser about your own position.