Joint buyers: when the non-resident SDLT surcharge applies
Joint buyers and the non-resident surcharge
For a joint purchase, each buyer is tested separately. If any one buyer makes the purchase a non-resident transaction, the increased SDLT rates apply.
- A small share can still trigger the result.
- Joint tenants and tenants in common are treated the same for this point.
- Separate rules may matter for spouses, civil partners and Crown employees.
Scroll down for the full analysis.
Read the original guidance here:
Joint buyers: when the non-resident SDLT surcharge applies
If you buy a home with someone else, one non-resident buyer can trigger the extra stamp duty rate for the whole purchase. Their share can be tiny. That point can add thousands of pounds to the SDLT bill.
What this rule is about
SDLT has increased rates for a purchase that counts as non-resident. The law adds 2 percentage points to each relevant SDLT rate for that type of purchase.
Joint ownership does not mean HMRC blends the buyers’ residence positions. Instead, each person is considered on their own.
This is the part people get wrong.
You may be UK resident while buying with a partner, friend or family member who is not, and that person’s status can determine the outcome even when you pay most of the price. It can decide the result.
What the official source says
HMRC’s manual says that a joint purchase has the non-resident surcharge if it would count as a non-resident transaction for any buyer when considered alone. The manual points to paragraph 2(1)(a) of Schedule 9A.
- Start by identifying every joint buyer.
- Consider each buyer’s residence position separately.
- If the test is met for any one buyer, the increased rates apply to the purchase.
- It makes no difference whether the buyers hold as joint tenants.
- It also makes no difference if they hold as tenants in common.
- The size of a particular buyer’s share does not change this result.
The legislation is the law. HMRC’s manual explains HMRC’s view of how it works, but it does not replace the legislation.
What this means in practice
The buyer with the largest share does not necessarily determine the SDLT answer. Nor does it help, on this point alone, if the non-resident buyer contributes little money.
For a straightforward purchase where the full price is taxed through the normal SDLT bands, adding 2 percentage points to every band produces an extra amount equal to 2% of the price. Other SDLT rules can affect the final calculation.
- Ask about every buyer, not only the person arranging the mortgage.
- Check residence before you exchange or complete.
- Record why each buyer meets, or does not meet, the residence test.
- Do not treat a 1% share as irrelevant.
- Do not rely on the label used in the transfer document.
- Check whether special spouse, civil partner or Crown employee rules need a separate review.
How to analyse it
The right question is not: who owns most of the home? Ask instead: would this purchase be non-resident for any one of us?
- List every person who will buy an interest in the property.
- Identify the date that matters for SDLT.
- Apply the statutory residence test to the first buyer.
- Repeat that exercise for every other buyer.
- Where any buyer meets the non-resident test, treat the purchase as one subject to the increased rates.
- Then check the special rules mentioned by HMRC, where relevant.
- Calculate the SDLT using the rates in force on the relevant date.
There is no averaging exercise. One buyer’s result can affect everyone.
Example
Anna and Ben buy a home for £400,000. Anna will own 99%. Ben will own 1%. Assume Anna meets the UK residence test and Ben does not, and that no special rule or relief changes the outcome.
Under HMRC’s stated approach, because the purchase would count as a non-resident transaction when Ben is considered individually, it is treated as such for the joint purchase. The increased rates therefore apply. On the simple assumption that the full £400,000 is taxed through the standard SDLT bands, the 2 percentage point increase adds £8,000.
If Ben also meets the residence test, then changing that single fact means this joint-buyer rule would not, by itself, trigger the increase in this case. It does not answer any other SDLT question.
Why this can be difficult in practice
The ownership split is usually easy to find. Residence is often harder. It depends on the statutory test and the facts, rather than on a person’s nationality or where they intend to settle one day.
HMRC’s source also refers readers to separate pages about spouses, civil partners and Crown employees. Those rules may alter the usual analysis, but this source does not give their conditions.
- Nationality is not the same thing as the SDLT residence test.
- A UK-resident joint buyer does not automatically prevent the increase.
- A very small ownership share can still matter.
- Joint tenants and tenants in common get the same treatment for this rule.
- Special rules should not be assumed without checking their exact conditions.
- The law may have changed after the statutory material’s recorded currency date.
Key takeaways
- Test every joint buyer separately.
- One non-resident buyer can trigger the increased SDLT rates.
- The size and form of that buyer’s share do not change this rule.
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 section 75ZA — adds two percentage points for non-resident transactions
- FA 2003 Schedule 9A para 2 — tests joint buyers separately for non-resident status
- FA 2003 section 103 — sets general SDLT rules for joint buyers
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
- The source does not set out the full residence test, the spouse and civil partner rules, or the Crown employee relief conditions.
- The statutory extract is recorded as current only to 17 November 2025. A transaction after that date needs a check against current 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.
- The identity of every person buying the property
- How each buyer will own their share
- Each buyer’s UK residence facts for the statutory test
- Whether a spouse or civil partner rule may apply
- Whether Crown employee relief may be relevant
- The date the purchase takes effect for SDLT
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 Joint buyers: when the non-resident SDLT surcharge applies [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 section 75ZA - adds two percentage points for non-resident transactions https://www.legislation.gov.uk/ukpga/2003/14/section/75ZA/2025-11-17 - FA 2003 Schedule 9A para 2 - tests joint buyers separately for non-resident status https://www.legislation.gov.uk/ukpga/2003/14/schedule/9A/paragraph/2/2025-11-17 - FA 2003 section 103 - sets general SDLT rules for joint buyers https://www.legislation.gov.uk/ukpga/2003/14/section/103/2025-11-17 Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm09875 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 - The source does not set out the full residence test, the spouse and civil partner rules, or the Crown employee relief conditions. - The statutory extract is recorded as current only to 17 November 2025. A transaction after that date needs a check against current 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: Joint buyers: when the non-resident SDLT surcharge applies
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