STAMP DUTY LAND TAX / COMMERCIAL
Commercial stamp duty calculator
Estimate SDLT for commercial, mixed-use and qualifying purchases of six or more dwellings in one transaction.
YOUR ESTIMATE
Estimated stamp duty
£14,500Effective rate2.90%
How it is calculated
| Price band | Rate | Tax |
|---|---|---|
| £0 – £150,000 | 0% | £0 |
| £150,000 – £250,000 | 2% | £2,000 |
| £250,000 – £500,000 | 5% | £12,500 |
Calculated using progressive non-residential rates, without the residential additional-property or non-resident surcharges.
Scope and sources
An initial estimate only. Corporate or trust ownership, linked transactions, replacement of a main residence, shared ownership, rental NPV and other special reliefs are outside this tool. Confirm the filing position with a solicitor or tax adviser.
Rates rule 2016-03-17, checked 2026-09-07. Sources: GOV.UK
Before you use the estimate
Does buying six homes in the same development qualify?
The rule concerns six or more dwellings in a single transaction. The development alone does not determine eligibility. Ask your solicitor to check the transaction structure.
Does this cover all tax on a commercial lease?
This tool calculates the purchase-price or lease-premium component only. New leases may also require SDLT on the net present value of rent.
A CONVERSATION, FIRST
A considered conversation is a good place to start.
Tell us about your plans, your budget and the questions that matter to you. We start by understanding what you need.

