Stamp duty: when a public-use business avoids the 17% company rate
In brief
A qualifying commercial trade that gives customers substantial use of a high-value home can prevent the 17% SDLT company rate applying. It may still fall within the higher rates for additional homes.
- Public customer use must normally be offered for at least 28 days each calendar year.
- Reasonable commercial plans must exist when the property is bought.
- The position must be maintained for three years or further SDLT may become due.
Scroll down for the full analysis.
Read the original guidance here:
Stamp duty: when a public-use business avoids the 17% company rate
Stamp duty: when a public-use business avoids the 17% company rate
A company buying a high-value home may avoid the 17% stamp duty rate if it runs a genuine customer-facing business, meets the commercial and public-use conditions, and has plans ready from the start. This is not a free pass.
What this rule is about
Certain companies and similar buyers can face the 17% rate when they purchase a high-value home. More than £500,000 of the amount paid must relate to a home interest for it to pass the relevant threshold.
Parliament created an exception for a business that lets customers use or stay in the home.
HMRC’s manual says that, where the conditions are met, the 17% rate does not apply. The higher stamp duty rates for additional homes may apply instead.
What the official source says
At purchase, the law requires both a real intention and reasonable commercial plans that can put the intention into effect without delay, unless commercial reasons justify delay or it cannot be avoided. Delay needs justification.
- The home must be intended to earn income through a qualifying trade.
- The trade must run commercially and aim to make a profit.
- In its normal course, it must offer customers use, stays or enjoyment for at least 28 days in a calendar year.
- Customers must have access to a significant part of the home’s interior.
- The size, nature and function of the accessible areas all matter.
What this means in practice
Occasional business use will not qualify.
To qualify, the trade must normally give the public a real opportunity to use a substantial part of the home, rather than merely attaching business activity to it. A room-only arrangement may not be enough.
This is the part people get wrong: an intention alone does not do the job. The buyer must have reasonable, commercial plans ready to carry out promptly.
- Keep the business plan prepared for the purchase.
- Keep budgets, pricing and income forecasts.
- Keep advertising, booking and customer-use records.
- Record why any launch delay happened.
How to analyse it
Start with the property and buyer. Then test the business plan, rather than working backwards from the tax result you want.
- Is the buyer within the 17% company-rate rules?
- Is more than £500,000 attributed to the home interest?
- Will the trade earn income on a commercial, profit-seeking basis?
- Will customers normally be offered use for at least 28 days each calendar year?
- Will they use a significant part of the interior?
- Were workable commercial plans in place when you bought?
- If trading starts late, can you show why?
Example
Oak Ltd buys a country house for £650,000. Its board-approved plan is to run paid cooking breaks.
Guests will use bedrooms, kitchens and living rooms for more than 28 days each year. It has a budget, website plan and bookings process.
On those stated facts, the public-use trade exception can prevent the 17% rate applying. Oak Ltd must still consider the separate higher-rates rules.
Why this can be difficult in practice
No fixed floor-area test exists.
A large house with guests limited to one small room raises a different issue from a house genuinely used by paying guests.
The exception continues to matter after completion.
For three years, the interest must normally earn income in the qualifying trade, and relief can be withdrawn if that requirement fails during that period. That duty continues.
An unforeseen problem outside the buyer’s control, or reasonable steps to restart trading, can matter.
- A change from customer use to private use can trigger withdrawal.
- An unexplained delay may undermine the original claim.
- If relief is withdrawn, a further SDLT return and payment are generally due within 30 days of the relevant failure date.
Key takeaways
- Public use must be a real commercial activity, not a label.
- Plans and evidence at purchase are vital.
- Keep meeting the conditions for the following three years.
Technical analysis
For advisers, and for anyone who wants to check the law behind this page. You do not need this section to understand the guidance above.
Legislation
- FA 2003 Schedule 4A para 1 — when a home interest passes the higher threshold
- FA 2003 Schedule 4A para 3 — the 17% rate for certain company home purchases
- FA 2003 Schedule 4A para 5B — exception for commercial trades open to the public
- FA 2003 Schedule 4A para 5H — when this public-use trade relief is withdrawn
- FA 2003 Schedule 4ZA para 1 — higher SDLT rate bands for additional homes
- FA 2003 Schedule 4ZA para 4A — higher rates for companies buying a single home (provision not found on legislation.gov.uk)
- FA 2003 section 81 — further return and payment after relief withdrawal
Official guidance
The pages below are HMRC’s guidance. Guidance is not law. It sets out how HMRC reads the legislation, and it is not binding on you, on a tribunal or on a court. Where guidance and the legislation differ, the legislation wins. HMRC can also change or withdraw guidance, and it may not cover your facts.
Where this is not settled
- Whether an area is a significant part of a home’s interior depends on its size, nature and function.
- Whether plans are reasonable commercial plans, and whether a delay is justified, depend on the evidence and facts.
- The Schedule 4A source text used here is recorded as current only to 17 November 2025. The law for a later transaction needs checking against the current official legislation.
Evidence you would need
This kind of case is decided on the facts of the individual property. These are the records that usually settle it, and the ones an adviser would ask you for.
- business plan, budgets and projected income
- marketing and booking arrangements showing public availability
- records of customer use and the parts of the home available
- documents explaining any delay or interruption
- evidence of reasonable steps to start or restart trading
Explore this with an AI
Readers often want to test their own situation. Copy the prompt below into ChatGPT, Claude or Gemini. It hands the model the actual legislation for this page rather than letting it answer from memory, and tells it to be explicit about what is uncertain. What comes back is information, not advice – check it against the links above.
I am researching UK Stamp Duty Land Tax (SDLT), which applies in England and Northern Ireland. MY QUESTION Stamp duty: when a public-use business avoids the 17% company rate [Replace this with your own situation: what you are buying, the price, the dates, who the buyer is, and what you plan to do with the property.] THE LAW THIS TURNS ON - FA 2003 Schedule 4A para 1 - when a home interest passes the higher threshold https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/1/2025-11-17 - FA 2003 Schedule 4A para 3 - the 17% rate for certain company home purchases https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/3/2025-11-17 - FA 2003 Schedule 4A para 5B - exception for commercial trades open to the public https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/5B/2025-11-17 - FA 2003 Schedule 4A para 5H - when this public-use trade relief is withdrawn https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/5H/2025-11-17 - FA 2003 Schedule 4ZA para 1 - higher SDLT rate bands for additional homes https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/1/2025-11-17 - FA 2003 Schedule 4ZA para 4A - higher rates for companies buying a single home https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/4A/2025-11-17 - FA 2003 section 81 - further return and payment after relief withdrawal https://www.legislation.gov.uk/ukpga/2003/14/section/81/2025-11-17 Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm09590 HOW I WANT YOU TO ANSWER 1. Work from the legislation above. Read it before answering. Guidance from HMRC is its view of the law, not the law, and does not bind a tribunal or a court. 2. Tell me what the rule actually requires, in plain English. 3. Tell me which facts decide the answer, and which facts would change it. 4. Tell me what evidence I would need to support the position. 5. Be explicit about anything unsettled or fact-sensitive. Do not guess. 6. Your training data has a cutoff and SDLT rates and reliefs change at fiscal events. Say so if you are not sure the law is current. POINTS ALREADY KNOWN TO BE UNCERTAIN ON THIS TOPIC - Whether an area is a significant part of a home's interior depends on its size, nature and function. - Whether plans are reasonable commercial plans, and whether a delay is justified, depend on the evidence and facts. - The Schedule 4A source text used here is recorded as current only to 17 November 2025. The law for a later transaction needs checking against the current official legislation. Do not give me a conclusion you cannot support from the provisions above.
Legislation links show Finance Act 2003 as it stood on 2025-11-17. The law may have changed since, and the rules that apply are those in force on the date of your transaction. The official guidance this page is based on is here.
This page was last updated on 1 September 2026
Useful article? You may find it helpful to read the original guidance here: Stamp duty: when a public-use business avoids the 17% company rate
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