Estimate Stamp Duty (SDLT) for a Limited Company
This calculator is designed for England and Northern Ireland transactions. Enter your figures below to get an instant estimate.
The 15% rate can apply to certain corporate purchases of high-value residential property where no relief is available.
What is stamp duty for a limited company?
When a limited company buys property in England or Northern Ireland, Stamp Duty Land Tax (SDLT) can be one of the biggest upfront costs. For many corporate residential purchases, the SDLT bill is higher than an equivalent purchase by an individual because higher-rate rules often apply.
This page gives you a practical way to estimate that cost before you make an offer. While the calculator is easy to use, the rules themselves can get technical quickly, especially where reliefs, group structures, or mixed-use transactions are involved.
How this limited company stamp duty calculator works
1) Choose a property type
- Residential: Uses standard residential SDLT bands, with the option to add a company surcharge.
- Non-residential / mixed-use: Uses non-residential SDLT bands (often relevant for mixed commercial/residential deals).
2) Enter the purchase price
Input the total chargeable consideration for the transaction. The calculator then applies each tax band progressively.
3) Add the company surcharge (if applicable)
Companies buying residential property are commonly caught by higher-rate rules. The calculator lets you set the surcharge percentage manually so you can model different assumptions if rates change.
4) Optional 15% flat company rate
In specific scenarios, a 15% flat SDLT rate may apply to residential acquisitions by non-natural persons. This is a specialist area and reliefs may switch the result back to ordinary rates. Use this option for scenario testing only unless you have professional confirmation.
SDLT bands used in this calculator
Residential bands (base rates)
- £0 to £250,000: 0%
- £250,001 to £925,000: 5%
- £925,001 to £1,500,000: 10%
- Over £1,500,000: 12%
Non-residential / mixed-use bands
- £0 to £150,000: 0%
- £150,001 to £250,000: 2%
- Over £250,000: 5%
Example scenarios
Example A: Residential buy-to-let through a company
Purchase price: £350,000. If you apply the residential bands plus a 5% company surcharge, the calculator shows both the base SDLT and surcharge as separate lines. This gives a clearer view of how much of the total bill is caused by higher-rate treatment.
Example B: Mixed-use property
Purchase price: £500,000. Choosing non-residential/mixed-use applies the non-residential scale. In some deals this can produce a lower SDLT figure than a fully residential classification, but classification must be defensible.
Example C: High-value residential with potential 15% treatment
Purchase price: £1,000,000. Selecting the 15% option estimates £150,000 SDLT. This is a specialist scenario; always confirm with tax counsel or your conveyancing solicitor.
Important limits of any online calculator
A calculator is ideal for planning, but it cannot replace transaction-specific advice. Your final SDLT can be affected by legal structure and reliefs.
- Linked transactions
- Group relief and reconstruction relief claims
- Leases and rent-based SDLT calculations
- Reliefs tied to business use, development, or charitable status
- Anti-avoidance rules and compliance disclosures
FAQ
Is this calculator only for UK users?
It is specifically tailored to SDLT in England and Northern Ireland. Scotland and Wales have different systems (LBTT and LTT).
Do limited companies always pay more stamp duty?
Not always, but for many residential purchases they face higher-rate outcomes. Mixed-use and non-residential treatment can be different.
Can I rely on this figure when budgeting?
Use it as a strong first estimate. For exchange/completion planning, get a solicitor or SDLT adviser to confirm the exact liability.
Does this include legal fees and Land Registry fees?
No. This tool calculates SDLT only. Your total acquisition costs will include legal, lender, valuation, and registration charges.
Final thought
If you are buying through a limited company, stamp duty can materially change your return on investment. Run multiple scenarios before offering, and document your assumptions. Good tax planning starts long before completion day.