Should I Get a Buy to Let Mortgage Through a Limited Company?
For higher-rate taxpayers and portfolio landlords, yes - tax savings typically outweigh higher rates. Basic-rate taxpayers with 1-2 properties may be better with personal mortgages.
Since the 2017 changes to mortgage interest tax relief (Section 24), many landlords now purchase BTL properties through a limited company structure. When you buy personally, you can only claim a 20% tax credit on mortgage interest. Through a company, you can offset the full interest against rental profits before paying corporation tax (19-25%). For a higher-rate taxpayer with significant mortgage costs, this difference can save thousands annually. The trade-offs include higher mortgage rates (typically 0.5-1% more), setup costs, accountant fees, and more complex administration. It's usually most beneficial for landlords earning 40%+ tax rate, those building a portfolio of 4+ properties, or those looking to pass properties to family tax-efficiently.
Tax treatment depends on individual circumstances and may change. This is not tax advice - consult a qualified accountant. Your property may be repossessed if you do not keep up repayments.
Key Points
- 1Full mortgage interest relief (vs 20% credit personally)
- 2Corporation tax 19-25% (vs income tax up to 45%)
- 3Mortgage rates typically 0.5-1% higher
- 4Need SPV with correct SIC codes (68100, 68209)
- 5Easier to add properties to existing company
- 6More complex administration and accountant costs
Eligibility Criteria
- SPV limited company with property SIC codes
- Personal guarantee usually required from directors
- Good personal credit (lenders assess directors)
- Minimum 25% deposit typically required
- Rental income to cover 125-145% of mortgage payment
Typical Timeframe
Setting up an SPV takes 1-2 days online. Limited company BTL mortgage applications typically take 4-8 weeks, similar to personal BTL timescales. Having your accountant confirm the company structure meets lender requirements speeds the process.
Next Steps
- 1Calculate tax position under both structures
- 2Speak to a property tax accountant
- 3Set up SPV with correct SIC codes if proceeding
- 4Gather personal and company documents
- 5Get advice from a specialist BTL mortgage broker
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Buy to Let HubContent reviewed: 13 January 2026