I'm worried about Section 24 and capital gains tax on future BTLs. What's the best way to structure a new buy-to-let purchase in 2026 (e.g., in a limited company) to minimise my tax bill down the line?
Quick Answer
Structuring new buy-to-let purchases from 2026, often via a limited company, can offer tax efficiencies. This allows for mortgage interest deductibility and potentially lower Corporation Tax rates, mitigating the impact of Section 24 and individual Capital Gains Tax.
## Tax Optimisation Strategies for New Buy-to-Let Purchases
For investors purchasing new buy-to-let (BTL) properties in 2026, the primary strategy to minimise the overall tax bill often involves acquiring properties within a limited company structure. This approach addresses the implications of Section 24 for income tax and can offer efficiencies regarding Capital Gains Tax (CGT) compared to individual ownership.
### Can a limited company structure mitigate Section 24 effects?
Yes, a limited company structure can mitigate the impact of Section 24. Since April 2020, individual landlords have not been able to deduct mortgage interest from their rental income before calculating their income tax liability. Instead, they receive a basic rate tax credit (currently 20%) on their finance costs. However, a limited company is not subject to Section 24; therefore, it can fully deduct mortgage interest and other finance costs as a business expense, reducing its taxable profits. This can significantly improve net cash flow for properties with higher interest costs, particularly for higher and additional rate taxpayers.
### How does Corporation Tax compare to Income Tax for rental profits?
For rental profits held within a limited company, Corporation Tax applies instead of Income Tax. The Corporation Tax rate is 19% for profits under £50,000, and 25% for profits over £250,000, with a tapered rate in between. For an individual, rental income is added to other income and taxed at personal income tax rates of 20%, 40%, or 45%, after considering Section 24's limited relief. For instance, a higher rate taxpayer (40%) earning £30,000 in rental profit with £10,000 in mortgage interest would pay significantly more tax as an individual than a limited company paying 19% on £20,000 profit (after interest deduction). A limited company paying £3,800 in Corporation Tax could reduce its overall tax burden compared to an individual paying a higher effective rate after Section 24 limitations.
### What are the Capital Gains Tax implications for limited companies versus individuals?
When a property held by an individual is sold, residential Capital Gains Tax (CGT) applies at 18% for basic rate taxpayers and 24% for higher/additional rate taxpayers, after an annual exempt amount of £3,000. For a limited company, when a property is sold, the gain is treated as part of the company's profits and is subject to Corporation Tax at 19% or 25%. While the nominal rate might seem similar, the key difference lies in accessing the funds. For an individual, the sale proceeds are largely after-tax. For a limited company, extracting profit from the company (e.g., through dividends) typically incurs further personal taxation (dividend tax), affecting the overall 'net' received by the investor. However, retaining profits within the company to reinvest in further properties, often referred to as 'reinvestment relief', avoids immediate personal income or dividends tax.
### How do Stamp Duty Land Tax (SDLT) and lending change for limited companies?
For limited company purchases, the Stamp Duty Land Tax (SDLT) remains subject to the higher rates for additional dwellings, meaning the 5% surcharge applies on top of standard residential rates from April 2025. This means a £250,000 property purchased by a limited company would incur £12,500 in SDLT from the additional dwelling surcharge alone, plus standard rates. Lending for limited companies (often called 'Special Purpose Vehicle' or SPV financing) is specialised. Typical BTL mortgage rates for limited companies are generally 0.25-0.5% higher than for individuals, often ranging between 5.5-7.0% for 2-year fixed or 6.0-6.5% for 5-year fixed products. Lenders also apply a standard BTL stress test of 125% rental coverage at a notional rate of 5.5%.
### Does structuring via a limited company affect portfolio expansion?
Structuring property investments through a limited company can facilitate portfolio expansion, especially for investors with multiple properties. The ability to retain profits within the company and re-invest them without first incurring personal income tax means capital can compound more quickly. This allows for 'snowballing' of deposits. For example, a company generating £20,000 annual post-tax profit (after Corporation Tax) can use that full amount for deposits, whereas an individual might have significantly less after personal income and dividend tax on extracted funds. This helps when seeking additional BTL mortgages, as lenders typically assess the financial health of the company rather than the individual directly beyond initial director guarantees.
## Potential Downsides of Limited Company Ownership
* **Increased Administration:** Operating a limited company involves annual accounts, company tax returns, and Companies House filings, typically requiring an accountant, which adds to overheads.
* **Higher Legal and Setup Costs:** Initial setup, legal work, and specialist mortgage advice for a limited company can be more expensive than for individual purchases.
* **Complex Exit Strategies:** Extracting capital from a limited company can be more complex and potentially tax-inefficient if not planned carefully, particularly upon sale of assets or company dissolution.
* **Mortgage Product Limitations:** While the market has grown, the range of BTL mortgage products for limited companies can be narrower and rates can be slightly higher than for individual borrowers.
## Steve's Rule of Thumb
If you're a higher-rate taxpayer planning to acquire multiple buy-to-let properties and retain profits for reinvestment, the long-term tax efficiencies of a limited company structure warrant serious consideration over individual ownership.
## What This Means For You
For investors aiming to build a substantial property portfolio, understanding the nuances of limited company structures versus individual ownership is critical. The long-term tax benefits, particularly concerning Section 24 and reinvestment capital, can significantly impact overall wealth accumulation. This strategic planning is precisely what we focus on inside Property Legacy Education, helping you assess the optimal structure for your investment goals.
Steven's Take
The move to limited company ownership for BTLs was largely driven by Section 24. While it offers clear income tax advantages, especially for higher rate taxpayers who reinvest profits, it introduces other considerations including Corporation Tax and the mechanics of extracting funds. The costs involved in setup and ongoing administration are also higher. Investors need to weigh these factors against their long-term objectives and personal tax situation. There's no one-size-fits-all answer, so diligent financial modelling is essential to determine the most advantageous structure.
What You Can Do Next
Consult a property tax specialist accountant (search 'property tax accountant' on ICAEW.com or ACCA Global) to model your specific financial situation under both individual and limited company ownership scenarios for new purchases.
Speak with an FCA-regulated mortgage broker specialising in buy-to-let mortgages for limited companies to understand available products, interest rates, and lending criteria for SPV companies.
Review your long-term investment strategy: if you plan to hold multiple properties for an extended period and reinvest profits, a limited company might be more suitable. If it's a single, short-term investment, individual ownership might be simpler.
Understand the ongoing administrative burden and associated costs (e.g., annual accountant fees, Companies House filings) for a limited company by discussing these with your chosen accountant.
Ensure you understand the implications of dividend tax rates if you plan to extract profits from the limited company for personal use, as this would incur further taxation beyond Corporation Tax.
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