Does a share in another home trigger the higher SDLT rate?
Condition C in brief
For the higher SDLT rates, a share in another home can count if it is worth at least £40,000 at the end of the SDLT tax date.
- Value your actual share, not automatically the whole property.
- Ignore mortgages when working out market value.
- Include homes outside the UK.
Scroll down for the full analysis.
Read the original guidance here:
Does a share in another home trigger the higher SDLT rate?
Even where you do not live there, a share in another home can trigger the higher stamp duty rate if the relevant SDLT conditions are met. It can. The key question is the value of your own share at the end of the SDLT tax date. If it is worth less than £40,000, Condition C is not met.
What this rule is about
Condition C forms one part of the test for the higher SDLT rates on an additional home. It considers whether you own another home when buying the new one.
This rule is not limited to homes in the UK. A home anywhere in the world can count. A share in jointly owned property can also count.
That difference can determine the outcome. Normally, the tested value is your interest rather than the value of the whole property.
What the official source says
HMRC’s manual says that Condition C is met where, at the end of the SDLT tax date, you own, or the Schedule treats you as owning, an interest in another home. That interest must pass three tests.
- It must be an ownership interest that counts for this SDLT test.
- Its market value must be at least £40,000 on that date.
- It cannot be a right to get property back after a lease with more than 21 years left.
- A lease first granted for seven years or less does not count.
- An undivided share in an ownership interest can count.
- A home outside England and Northern Ireland can count.
The legislation describes the relevant type of ownership as a “major interest”. Put simply, this usually includes freehold ownership and qualifying leasehold ownership.
HMRC says that the value is the open-market value of the interest you hold. A mortgage does not reduce that value. The test therefore does not use your equity after debt.
HMRC also says that the valuation covers the home itself, its garden or grounds, buildings and structures there, and land that exists for the home’s benefit. This is HMRC’s published view; the Schedule itself explains what counts as a home.
What this means in practice
Rather than asking first whether you own an entire second home, begin with your actual legal and beneficial share and value it at the right date.
A jointly owned rental property may therefore matter. The same may be true of a holiday home abroad, a share inherited from family, or an interest held through a trust where the Schedule treats it as yours.
- Check every property interest you hold at the end of the tax date.
- Include interests outside the UK.
- Check the value of your share, not only the headline sale value.
- Ignore the mortgage when applying the £40,000 value test.
- Keep evidence of the property’s value and your share.
- Remember that Condition C is only one part of the wider higher-rates test.
How to analyse it
Working through the facts in order helps prevent the common error of treating a property loan as though it reduces the value used for this test. Start there.
- Identify the SDLT tax date for your new purchase.
- List every other home interest you held at the end of that day.
- Check whether each interest is freehold or a qualifying leasehold interest.
- Check whether you hold a whole interest or only a share.
- Value the interest you actually own on the open market.
- Do not deduct mortgages or related borrowing.
- Check whether a long reversionary lease prevents the interest counting.
- Then consider the other higher-rates conditions separately.
What if a family member owns most of the property? That alone does not settle the issue. The relevant point here is the value of your own interest.
Example
Amira jointly owns a rental flat with four friends. The flat is worth £150,000, so a simple one-fifth share is worth £30,000. She lives with her parents and buys her first home. On the facts in HMRC’s example, her share is below £40,000, so Condition C is not met.
Now change one fact. If her share had a market value of £40,000 or more, Condition C could be met. You would still need to check the other conditions before deciding whether the higher rate applies.
Why this can be difficult in practice
The £40,000 figure may sound simple. Valuing a part share often is not. A one-fifth share in a property may not sell for exactly one-fifth of the full property value.
A large mortgage, even where it greatly reduces the equity left after paying the lender, does not reduce the value for this test. Market value governs. The issue is market value, not the money left after paying the lender.
- A property estimate may value the whole property, not your share.
- A jointly owned interest may be hard to sell separately.
- Trust and inheritance arrangements can change who counts as an owner.
- Foreign property documents may use ownership rights unfamiliar in the UK.
- Land beside a house may affect the value if it exists for that home’s benefit.
- Later events do not change what you owned at the end of the tax date.
Key takeaways
- Your share in another home can matter, wherever it is located.
- The share must be worth at least £40,000 on the open market.
- Mortgages do not reduce the value for this test.
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 4ZA para 2 — short leases excluded from major interest status; shares in home ownership interests count
- FA 2003 Schedule 4ZA para 3 — when higher rates apply to one home; condition c for another owned home
- FA 2003 Schedule 4ZA para 17 — overseas homes included in the ownership test
- FA 2003 Schedule 4ZA para 18 — what counts as a home for schedule purposes
- FA 2003 section 117 — freehold and leasehold interests treated as major interests
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
- Working out the open-market value of a part share can be difficult, especially where it cannot easily be sold separately.
- Whether a building or land forms part of a home may depend on the facts at the tax date.
- Overseas ownership records and local property law may need careful comparison with the UK test.
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.
- Land Registry title and filed plan for each UK property interest — the property, ownership form and share held
- Transfer, lease or purchase contract for the other property — when and how the interest was obtained
- Lease and any later variation or extension — the original lease length and years left
- Completion statement for the new purchase — the SDLT tax date to test ownership against
- Independent valuation dated close to that tax date — the market value of the actual share held
- Sales particulars, floor plans and dated photographs — the building, garden, grounds and related land being valued
- Mortgage statement or loan documents — the borrowing position, which does not reduce market value
- Trust deed, probate papers or inheritance records where relevant — whether the law treats an interest as owned
- Foreign land-register extract and local legal documents — the nature and ownership of an overseas home interest
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 Does a share in another home trigger the higher SDLT 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 4ZA para 2 - short leases excluded from major interest status https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/2/2025-11-17 - FA 2003 Schedule 4ZA para 2 - shares in home ownership interests count https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/2/2025-11-17 - FA 2003 Schedule 4ZA para 3 - when higher rates apply to one home https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/3/2025-11-17 - FA 2003 Schedule 4ZA para 3 - condition c for another owned home https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/3/2025-11-17 - FA 2003 Schedule 4ZA para 17 - overseas homes included in the ownership test https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/17/2025-11-17 - FA 2003 Schedule 4ZA para 18 - what counts as a home for schedule purposes https://www.legislation.gov.uk/ukpga/2003/14/schedule/4ZA/paragraph/18/2025-11-17 - FA 2003 section 117 - freehold and leasehold interests treated as major interests https://www.legislation.gov.uk/ukpga/2003/14/section/117/2025-11-17 Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm09780 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 - Working out the open-market value of a part share can be difficult, especially where it cannot easily be sold separately. - Whether a building or land forms part of a home may depend on the facts at the tax date. - Overseas ownership records and local property law may need careful comparison with the UK test. 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 31 August 2026
Useful article? You may find it helpful to read the original guidance here: Does a share in another home trigger the higher SDLT rate?
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