Is Stamp Duty Cheaper Buying Through a Company?
Understanding corporate SDLT rates and when company ownership makes financial sense.
Quick Answer: No. Companies pay significantly more stamp duty upfront. However, for large portfolios, the ongoing tax savings from corporation tax rates can eventually offset the higher initial stamp duty costs.
Key Takeaways
- Companies pay 17% flat rate on residential property over £500,000 (increased from 15% in 2024)
- Companies always pay the 5% additional property surcharge (no FTB relief)
- For buy-to-let portfolios, corporation tax at 25% is lower than income tax at 45%
- Stamp duty on a £600,000 property: personal buyer pays £20,000 (standard) but company pays £102,000 (17% rate)
- Around 45,000 SPV property purchases were made in 2023-24
- The breakeven point where company ownership benefits depends on portfolio size and income tax bracket
In this article
How Company Purchase SDLT Works
When a limited company (including LLPs and other corporate bodies) purchases residential property in England or Northern Ireland, it pays stamp duty at special corporate rates, not the standard individual rates. Use our stamp duty calculator to compare personal vs corporate rates, or see our dedicated company vs personal comparison tool for a side-by-side breakdown.
Company SDLT Structure
- £0–£500,000: Standard residential rates apply (0%–5%)
- Above £500,000: Flat 17% rate on the portion above £500k
- Additional property: Always pay the 5% surcharge (no FTB relief)
This means a company buying a £600,000 buy-to-let property pays:
- 5% on £0–£250k = £12,500 (with 5% additional property surcharge)
- 10% on £250k–£500k = £25,000 (standard 5% + 5% surcharge)
- 17% on £500k–£600k = £17,000
- Total: £54,500 (compared to £33,750 for an individual additional property buyer)
The 17% Rate Explained
The 17% corporate rate (increased from 15% in October 2024) was introduced to discourage tax-motivated property purchases through companies. HMRC identified that high-net-worth individuals were using corporate structures to avoid higher income tax rates on rental income. Our corporate buyer guide explains the full tax implications.
Why the Rate Increased
The 2024 Autumn Budget raised the corporate SDLT rate from 15% to 17% to align with changes in corporation tax rates and close perceived loopholes. The government estimated this would raise £40 million annually in additional revenue.
The 17% rate applies only to the portion of the purchase price above £500,000. For properties under £500k, companies pay the standard residential rates plus the 5% additional property surcharge (since companies rarely qualify as first-time buyers).
When Is Company Purchase Cheaper?
While stamp duty is always higher for companies, ongoing tax savings can make corporate ownership more cost-effective for:
1. Portfolio Landlords in High Tax Brackets
If you're a higher or additional rate taxpayer (40%–45% income tax), corporation tax at 25% offers significant savings:
Example: £50,000 Annual Rental Profit
| Structure | Tax Rate | Tax Paid | Net Profit |
|---|---|---|---|
| Personal (45% bracket) | 45% | £22,500 | £27,500 |
| Company (corporation tax) | 25% | £12,500 | £37,500 |
Annual saving: £10,000. This can offset higher stamp duty within 2–3 years for large portfolios.
2. Reinvesting Profits
Companies can reinvest profits (e.g., into renovations or additional properties) before paying the 25% corporation tax. Personal landlords must pay income tax first (up to 45%), then reinvest what's left.
3. Inheritance Tax Planning
Company shares can be gifted or structured in ways that reduce inheritance tax exposure. Personal property portfolios form part of your estate and are subject to 40% IHT above the nil-rate band.
4. Limited Liability Protection
While not a tax benefit, corporate ownership limits personal liability. If a tenant sues or the property business incurs debt, your personal assets are protected (assuming no personal guarantees were given).
Company vs Personal Stamp Duty Comparison
Here's how stamp duty costs differ for company vs personal buyers at various price points (assuming additional property purchase):
| Property Price | Personal Buyer (Additional Property) | Company Buyer | Difference |
|---|---|---|---|
| £300,000 | £11,500 | £11,500 | £0 |
| £500,000 | £27,500 | £27,500 | £0 |
| £600,000 | £33,750 | £44,500 | +£10,750 |
| £1,000,000 | £73,750 | £112,500 | +£38,750 |
| £2,000,000 | £223,750 | £282,500 | +£58,750 |
Note: Company buyers pay significantly more stamp duty upfront, especially on properties above £500k. The 17% rate creates a steep cost increase for corporate purchases.
SPV Structure Explained
A Special Purpose Vehicle (SPV) is a limited company created solely to purchase and manage property. Around 45,000 SPV property purchases were made in the UK in 2023–24, according to HMRC data. Read our detailed SPV guide for setup and tax planning strategies.
Key Features of SPV Companies
- Separate legal entity: The SPV owns the property, not you personally
- Limited liability: Your personal assets are protected from property-related claims
- Corporation tax: Profits taxed at 25% (vs up to 45% income tax)
- Mortgage interest relief: Full deduction (individuals restricted to 20% tax credit)
- Ownership transfer: Easier to transfer shares than convey property
SPV Mortgage Rates
SPV mortgages typically come with higher interest rates (often 0.5%–1% above personal buy-to-let mortgages) and require larger deposits (25%–40%). Factor these costs into your calculations.
When to Use an SPV
SPVs are most beneficial for:
- Portfolio landlords with 4+ properties generating significant rental income
- Additional rate taxpayers (45% income tax bracket)
- Investors planning to reinvest profits rather than extract income
- Long-term wealth building with eventual share transfer to family members
Annual Tax on Enveloped Dwellings (ATED)
Companies holding residential property valued over £500,000 may be liable for ATED, an annual charge ranging from £4,400 to £290,350 depending on property value.
| Property Value | Annual ATED Charge (2025–26) |
|---|---|
| £500,000–£1m | £4,400 |
| £1m–£2m | £9,000 |
| £2m–£5m | £30,550 |
| £5m–£10m | £72,350 |
| £10m–£20m | £145,450 |
| Over £20m | £290,350 |
ATED Relief
Properties let commercially (on the open market at market rent) qualify for full ATED relief. Most buy-to-let SPVs avoid ATED charges by claiming this relief. You must file an ATED return even if claiming relief.
Anti-Avoidance Rules
HMRC has introduced several measures to prevent abuse of corporate property ownership:
1. Non-Natural Person (NNP) SDLT Surcharge
The 17% rate itself acts as the primary anti-avoidance measure, making corporate purchases significantly more expensive than personal purchases above £500k.
2. Transfer to Connected Parties
Transferring personally-owned property into your own company triggers a stamp duty charge based on the higher of market value or outstanding mortgage. You cannot avoid this by using book value.
3. ATED Charges
As discussed above, properties not commercially let face annual ATED charges, discouraging use of companies for personal residences.
4. Dividend Extraction Tax
While profits are taxed at 25% corporation tax, extracting money as dividends triggers additional tax (8.75%–39.35% depending on bracket). This reduces the headline tax saving from corporate ownership.
Seek Professional Advice
The tax implications of corporate property ownership are complex and highly dependent on your individual circumstances. Always consult a qualified tax advisor or accountant before structuring property purchases through a company.
Frequently Asked Questions About Buying Property Through a Company
Do companies pay the 5% additional property surcharge?
Yes. Companies purchasing residential property as an additional property pay the standard 5% surcharge on top of the corporate rates. Companies almost never qualify for first-time buyer relief.
Can I transfer my rental property into a company to save tax?
Yes, but you'll trigger a stamp duty charge based on the property's market value or outstanding mortgage (whichever is higher). You'll also face capital gains tax on the transfer. Consult a tax advisor to model the costs vs benefits.
What happens if I buy through a company then move in personally?
You'll lose ATED relief (if applicable) and face annual ATED charges. Living in a company-owned property may also trigger benefit-in-kind tax charges. HMRC views this as a taxable benefit since you're occupying an asset owned by your company.
Is the 17% rate only in England?
The 17% corporate SDLT rate applies in England and Northern Ireland. Scotland has a 6% Additional Dwelling Supplement (ADS) for all additional properties (no separate corporate rate). Wales has its own LTT higher rates structure for additional properties.
Can I use a partnership instead of a company to avoid the 17% rate?
LLPs and other corporate partnerships are treated as companies and pay the 17% rate. Traditional partnerships where all partners are individuals pay standard residential rates. However, HMRC closely scrutinizes partnership structures to prevent avoidance.
How many properties do I need for corporate ownership to be worthwhile?
There's no fixed number, but financial advisors typically recommend corporate structures for portfolios generating £50,000+ annual profit or landlords with 4+ properties in the higher/additional tax brackets. The breakeven period depends on your income tax rate and reinvestment strategy.
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Emma Richardson, MRICS
Chartered Surveyor & Property Tax Specialist
Emma Richardson is a RICS-qualified Chartered Surveyor with over 12 years of experience in UK property taxation. She founded Stamp Duty Calculator to help buyers understand the complex world of property transaction taxes.
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