Buy-to-Let via Limited Company: The 2026 Tax Analysis

The question of whether to hold buy-to-let property personally or via a limited company has dominated landlord tax planning for a decade. Section 24 of the Finance Act 2015 — which restricted individual landlords' ability to deduct mortgage interest against rental income — was the catalyst. For many investors, the limited company route appeared to resolve the problem neatly: companies retain full mortgage interest deductibility and pay corporation tax at a lower headline rate. The reality, as always with tax, requires more careful analysis.

Where We Are in 2026

The tax environment for property investment has changed materially since the Section 24 announcement in 2015:

• Corporation tax rose from 19% to 25% for profits above £250,000 in April 2023 (marginal relief applies between £50,000 and £250,000 for companies with no associated companies).
• Capital gains tax on residential property for individuals was reduced to 18%/24% from October 2024 (down from 18%/28%).
• Dividend tax rates remain at 8.75%/33.75%/39.35% (basic/higher/additional rate) on dividends above the £500 annual allowance.
• Stamp Duty Land Tax on incorporation was not relieved — it applies at full market-value rates, including the 5% additional-dwelling surcharge (in force since 31 October 2024), on transfer of residential property from an individual to a company.

The cumulative changes mean the company vs personal ownership comparison is genuinely closer in 2026 than it appeared to be in 2016–2020.

The Case for the Company: Mortgage Interest

The fundamental advantage of the limited company route is the full deductibility of mortgage interest from rental income before corporation tax. An individual landlord paying higher-rate income tax receives only a 20% basic-rate tax credit on mortgage interest — effectively meaning that for every £1,000 of mortgage interest paid, the tax saving is only £200, even for a 40% or 45% taxpayer. In high-leverage situations, this can create a taxable profit despite actual cash-flow losses.

A company, by contrast, deducts interest as a business expense before calculating taxable profit. Interest cost of £10,000 reduces taxable profit by £10,000; the tax saving is £2,500 (at 25% corporation tax) rather than £200 (at 20% basic-rate credit).

This advantage is most pronounced for:

• Highly leveraged portfolios (loan-to-value ratios above 50–60%);
• Higher and additional rate taxpayers;
• Investors whose primary income is already substantial, meaning rental income is stacked on top at the higher rate.

The Case Against: Extraction Costs

The company route does not provide tax-free access to rental profits. Once profits are in the company, they can be extracted as:

• Salary or remuneration: subject to income tax and National Insurance contributions;
• Dividends: subject to dividend tax at 8.75%/33.75%/39.35% above the £500 annual allowance;
• Pension contributions: employer contributions to a director's pension are an allowable deduction and represent tax-efficient extraction.

The combined tax burden — corporation tax on profit plus dividend tax on distribution — must be compared with the individual landlord's income tax position.

Example:

• Rental profit (after interest, repairs, and other allowable costs): £30,000;
• Company pays 25% corporation tax: £7,500, leaving £22,500;
• Shareholder extracts as dividend — if a higher-rate taxpayer, dividend tax at 33.75% = £7,594;
• Total tax on £30,000 profit via company: approximately £15,094 = effective rate ~50.3%;
• Individual landlord at 40% income tax: £12,000;
• Individual landlord total tax on £30,000 rental profit: £12,000 = effective rate 40%.

In this simplified example, the company route is actually more expensive in aggregate. The advantage of the company route appears when mortgage interest is high — because the individual cannot deduct it efficiently, but the company can.

SDLT on Incorporation

Transferring an existing personally owned property portfolio into a limited company triggers SDLT at market value — including the 5% additional-dwelling surcharge (in force since 31 October 2024). CGT may also arise on the deemed disposal (though incorporation relief for genuine business activity may apply in limited circumstances).

Example: A property worth £500,000 transferred to a company:

• SDLT: standard residential rates (£15,000) + 5% additional-dwelling surcharge on full value (£25,000) = £40,000;
• This cost must be recouped from the future tax savings within a reasonable timeframe.

Where the SDLT cost of incorporation is high, many investors choose to:

• Start new acquisitions through the company and hold existing properties personally until sale;
• Explore partnership-based incorporation (which has complex rules and limited application to investment property);
• Model the break-even point on SDLT cost vs future tax saving.

Capital Gains Tax: Company vs Personal

For a higher-rate individual taxpayer, CGT on residential property is:

• 18% (basic-rate band) and 24% (higher rate) from October 2024.

For a company, gains on disposal of residential property are taxed at the corporation tax rate:

• 25% (for companies with profits over £50,000 in many cases).

Companies do not have access to annual CGT exemptions or Business Asset Disposal Relief (BADR). An individual selling qualifying business assets or shares in a qualifying trading company can access BADR at 18% for 2026/27 (on up to £1m of lifetime gains); this is not available for pure investment property.

The company rate of 25% is higher than the individual CGT rate of 24% on residential property since October 2024. This reverses the position of a few years ago. Companies also face a further tax hit when extracting sale proceeds via dividend or liquidation.

However, for companies reinvesting sale proceeds into further property, the rollover of capital within the company structure may defer extraction costs for many years — which has a time value of money advantage.

Is It Worth It for New Investors?

For a new investor with no existing properties:

• If the strategy is to build a portfolio, retain rental profits within the company, and reinvest rather than extract income short-term, the company route can still be efficient.
• If the investor plans to live off rental income in the near term, the extraction costs erode the advantage significantly.
• The company structure requires separate accounting, corporation tax returns, and annual statutory accounts — an ongoing cost of £1,000–£3,000+ per annum for routine compliance.
• Banking for investment property SPVs (Special Purpose Vehicles) has become more expensive and complicated; some lenders charge higher rates to limited companies.

For most new investors acquiring a single property and expecting to live off income, personal ownership in 2026 is at least as efficient and considerably simpler. The company becomes more compelling at portfolio scale (multiple properties), high leverage, or where the investor genuinely does not need to extract income immediately.

Holding Companies and Group Structures

Investors with larger portfolios (10+ properties) may consider a group structure: a holding company owning shares in one or more subsidiary SPVs. This provides compartmentalisation of risk and can facilitate inter-company transfers using the substantial shareholding exemption (SSE) in certain circumstances. Group relief allows losses in one group company to be offset against profits in another.

These structures require specialist legal and accounting advice and carry their own costs. They make most sense for portfolio investors with significant capital who are building a professional property business.

How Global Investments Can Help

The company versus personal decision is not a universal conclusion — it depends on your specific income level, portfolio leverage, investment horizon, and extraction requirements. We model the tax position for both routes across a realistic timeline, incorporating SDLT, CGT, income tax, and dividend tax, to identify the genuinely more efficient structure for your circumstances. Tax rules change; any model built today needs reviewing periodically. Contact us for a property portfolio tax review.