Property Tax29 April 2026·8 min read

Limited Company Buy to Let Mortgages: Is It Right for You?

Since Section 24 removed mortgage interest relief for individual landlords, limited company BTL mortgages have surged in popularity. But is restructuring the right move for you?

What is a limited company buy to let mortgage?

When you own a BTL personally, you pay income tax on rental profits and since Section 24, mortgage interest is no longer fully deductible. Higher rate taxpayers were hit hardest.

A limited company (SPV) pays corporation tax on profits and mortgage interest remains fully deductible. For higher-rate taxpayers with multiple properties, the annual tax saving can be substantial.

Who benefits most?

Limited company ownership makes most sense if you are a higher-rate taxpayer, building a portfolio of 2+ properties, reinvesting rental income rather than drawing it out, and planning long-term.

It makes less sense for basic rate taxpayers, those planning to sell soon, or single-property landlords where fixed costs are harder to absorb.

The real costs of restructuring

Moving property to a limited company is not a simple remortgage - it is a disposal and acquisition. The company pays SDLT including the 3% surcharge. On a 400,000 property SDLT could be 22,000-25,000.

The disposal may also trigger Capital Gains Tax personally. Add two sets of legal fees and a new mortgage arrangement fee. For landlords with large portfolios these costs can pay back within 2-3 years - for others the maths may not work.

Roger Cooper – CeMAP Qualified Mortgage Adviser

Roger Cooper

CeMAP Qualified Mortgage Adviser | FCA Regulated

Roger has over 15 years of experience as an independent mortgage adviser. CeMAP qualified and FCA regulated, he specialises in complex mortgage cases including self-employed applicants, portfolio landlords, expat mortgages and high-value purchases across Greater London and the Home Counties.

CeMAP QualifiedFCA Regulated15+ Years ExperienceWhole-of-Market

All advice provided by Mortgage International is given by CeMAP qualified advisers regulated by the Financial Conduct Authority.

Frequently asked questions

Do I need a new SPV or can I use my existing company?
Most lenders only lend to a pure property SPV with SIC code 68100 or 68209, not a trading business. Setting up a new SPV is straightforward and accepted by the widest range of lenders.
Are limited company BTL mortgage rates higher?
Yes, typically by around 0.2-0.5% versus equivalent personal BTL rates. However the tax saving for higher-rate taxpayers usually more than offsets this. We model total cost over 5 years before you commit.
Can I transfer existing BTL properties into a company?
Yes, but each transfer triggers SDLT and potentially CGT. For most landlords it is more cost-effective to keep existing properties personally and acquire future ones via a limited company.
Important information: This article is for general information purposes only and does not constitute financial advice. Mortgage eligibility and rates vary by individual circumstances. Mortgage International is an appointed representative of The Right Mortgage Limited, authorised and regulated by the Financial Conduct Authority (FCA Ref: 478810). Your home may be repossessed if you do not keep up repayments on your mortgage.