Company buys a £500,000-plus home with other land: SDLT split
In short
A company buying a £500,000-plus home with other land or property may need to split the purchase for SDLT. The 17% charge can apply to the high-value home part only.
- Divide the overall price on a just and reasonable basis.
- Tax the remaining land or homes separately.
- Keep evidence of use, boundaries and valuation.
Scroll down for the full analysis.
Read the original guidance here:
Company buys a £500,000-plus home with other land: SDLT split
Company buys a £500,000-plus home with other land: SDLT split
When a company buys a home worth more than £500,000 as part of a wider purchase, and the legal conditions are met, it may need to calculate stamp duty in two parts. Where the high-value home meets the conditions for the 17% charge, that charge may apply to it, while the remaining property is taxed separately under the normal rules. The split can make a large difference.
What this rule is about
One deal can cover far more than one house. It may include a large home and a smaller cottage. It may include a home, fields and woodland. Or it may be a mixed-use property with a house and commercial land.
You might calculate SDLT on the full price as one purchase. In this situation, that is not always right.
For certain company and similar buyers, the law has a special rule. It applies where the purchase includes an interest in one home with more than £500,000 of the price attributed to it. The law calls this a higher threshold interest.
Do not focus simply on the total price. Consider how much of that price can fairly be attributed to every part of what you bought.
What the official source says
HMRC’s manual says that, when a purchase contains a higher threshold interest alongside other land or property interests, buyers must divide it into two separate SDLT purchases. They must share the price between them on a just and reasonable basis.
- Every higher threshold interest in the overall deal forms the first part.
- Everything else bought in that same deal forms the second part.
- Met conditions trigger 17% on first part.
- Normal SDLT rules then govern the second part separately.
- For this calculation, the split parts are not treated as linked.
- Each notifiable split purchase needs its own SDLT return.
A price above £500,000 does not by itself settle the issue. 17% requires qualifying buyers and purchases.
When a single purchase includes six or more homes and that rule applies to the overall deal, it governs the original purchase as a whole. Other homes usually follow non-residential SDLT rules. Another rule may change that result.
What this means in practice
First, divide the total price fairly. Then work out SDLT on each part under the rules that apply to it. Price the second part separately. One contract changes nothing.
This matters most where a company buys a country estate or a mixed-use site. The part that is a home may carry the 17% charge. Where land has a genuinely separate non-residential function, the non-residential rates may apply to that land instead. Its use matters.
- Keep a clear valuation showing how the overall price was divided.
- Match the valuation to the actual land, buildings and rights bought.
- Check whether any land was used with the home as garden or grounds.
- Check whether land had a real separate business or other non-residential use.
- Prepare separate SDLT figures for the two parts of the purchase.
- Check whether each resulting part needs its own return.
If a relief removes the 17% charge, HMRC’s manual says that the normal mixed-use rules apply to the whole purchase instead, rather than to split parts. That is a different result. Check the availability of any relief separately.
How to analyse it
Where the purchase includes a home, other land, buildings or rights, begin with the property itself rather than the label in the estate agent’s details. Labels do not decide treatment.
Calling land “commercial” or “private grounds” does not decide its SDLT treatment.
- List every building, parcel of land and right included in the contract.
- Identify which parts are homes and which parts are not.
- Decide whether more than £500,000 of the price belongs to any one home.
- Check whether the buyer is a company or another buyer covered by the 17% rule.
- Split the overall price on a just and reasonable basis.
- Calculate the 17% charge on the high-value home part, if it applies.
- Apply the appropriate normal rules to the remaining part.
- Check whether the overall deal includes six or more separate homes.
What does “just and reasonable” mean here? It means a fair price split that can be explained with evidence. A professional valuation may help, but it should reflect the facts at completion.
Example
Illustration: a company buys an estate for £5 million. It includes a substantial home and a large area of moorland. A supportable valuation attributes £2.5 million to the home and £2.5 million to the moorland.
Where the 17% charge applies to the home, it is charged on the £2.5 million attributed to that home, rather than on the moorland. That produces SDLT of £425,000 on that part. The moorland is dealt with separately under the non-residential SDLT rules.
The answer would not change just because the contract gives one total price. The key issue is whether the £2.5 million split is just and reasonable.
Why this can be difficult in practice
This is the part people get wrong. The boundary between a home’s grounds and land with its own purpose can be unclear. A field may serve the home. A real agreement may also govern farming.
There is no safe answer from an aerial image alone. The legal title, access, actual use, third-party rights and valuation can all matter.
- Large land attached to a home is not automatically non-residential.
- A separate title does not automatically create a separate SDLT result.
- Business rates or council tax records are evidence, not the final answer.
- A valuation prepared after the purchase needs to fit the position at completion.
- The six-home rule governs the overall purchase, rather than just the homes outside the 17% part.
HMRC’s manual explains its view of this rule. It is not the law itself. The Finance Act provisions, applied to the real facts, decide the result.
Key takeaways
- A company purchase can be split between a high-value home and the rest.
- The 17% charge applies only to the price fairly attributed to the qualifying home.
- Good evidence for the price split and each part’s use is essential.
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 — defines a higher threshold interest in one home
- FA 2003 Schedule 4A para 2 — splits a purchase containing other property interests
- FA 2003 Schedule 4A para 3 — sets the 17% charge for certain company buyers
- FA 2003 Schedule 4A para 7 — sets the meaning of a home for this charge
- FA 2003 Schedule 4A para 9 — requires a just and reasonable price split
- FA 2003 section 55 — sets the normal SDLT calculation for other land
- FA 2003 section 76 — requires a return for a notifiable land purchase
- FA 2003 section 116 — defines residential property and the six-home rule
- FA 2003 Schedule 4ZA para 1 — sets higher SDLT bands for additional homes
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
- There is no fixed formula for dividing one overall price between a home and other land. What is just and reasonable depends on the facts and evidence.
- It can be hard to decide whether land is part of a home’s grounds, is held for its benefit, or has a separate non-residential role.
- A relief from the 17% charge may change the result, but entitlement depends on the precise relief conditions and the buyer’s intended use.
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.
- Signed contract, transfer and completion statement — what was bought, from whom, on what date and for what total price
- Land Registry title and filed plan for every parcel — the legal boundaries, separate titles and rights included in the purchase
- Independent valuation allocating the overall price — a reasoned basis for splitting the price between the home and other land
- Sales particulars, dated photographs and marketing material — how the property and land were described and presented at the time
- Planning permissions, planning history and lawful-use records — whether parts of the land or buildings had a separate permitted use
- Room-by-room use record at completion — whether each building or area was used as a home, business space or something else
- Council tax and business rates records — how public bodies recorded use, although those records do not decide SDLT alone
- Grazing, farming, forestry or other land-use agreements — whether another person had rights to use land and whether it had a business role
- Dated aerial photographs, maps and access plans — the layout, boundaries, access routes, separation and practical use of the land
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 Company buys a £500,000-plus home with other land: SDLT split [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 - defines a higher threshold interest in one home https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/1/2025-11-17 - FA 2003 Schedule 4A para 2 - splits a purchase containing other property interests https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/2/2025-11-17 - FA 2003 Schedule 4A para 3 - sets the 17% charge for certain company buyers https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/3/2025-11-17 - FA 2003 Schedule 4A para 7 - sets the meaning of a home for this charge https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/7/2025-11-17 - FA 2003 Schedule 4A para 9 - requires a just and reasonable price split https://www.legislation.gov.uk/ukpga/2003/14/schedule/4A/paragraph/9/2025-11-17 - FA 2003 section 55 - sets the normal SDLT calculation for other land https://www.legislation.gov.uk/ukpga/2003/14/section/55/2025-11-17 - FA 2003 section 76 - requires a return for a notifiable land purchase https://www.legislation.gov.uk/ukpga/2003/14/section/76/2025-11-17 - FA 2003 section 116 - defines residential property and the six-home rule https://www.legislation.gov.uk/ukpga/2003/14/section/116/2025-11-17 - FA 2003 Schedule 4ZA para 1 - sets higher SDLT bands for additional homes https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/1/2025-11-17 Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm09535 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 - There is no fixed formula for dividing one overall price between a home and other land. What is just and reasonable depends on the facts and evidence. - It can be hard to decide whether land is part of a home's grounds, is held for its benefit, or has a separate non-residential role. - A relief from the 17% charge may change the result, but entitlement depends on the precise relief conditions and the buyer's intended use. 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: Company buys a £500,000-plus home with other land: SDLT split
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