Stamp duty on a gifted home with a mortgage: when a return is needed
Mortgage debt can change a gift’s SDLT result
A property gift is not always free from stamp duty paperwork. Taking over mortgage debt can count as payment, even where no cash changes hands.
- Check the mortgage balance and who is responsible for it.
- A return can be required even when no SDLT is due.
- HMRC guidance is useful, but legislation decides the legal result.
Scroll down for the full analysis.
Read the original guidance here:
Stamp duty on a gifted home with a mortgage: when a return is needed
Stamp duty on a gifted home with a mortgage: when a return is needed
A gift of a home can still make the recipient deal with stamp duty paperwork. The key question is not the home’s value. It is whether you take over any mortgage debt. If you do, HMRC may treat that debt as an amount paid for the property.
What this rule is about
People often assume that a gift means there is no stamp duty land tax, or SDLT. That can be right. But saying that no cash changed hands is not enough.
A mortgage is money owed to a lender. If the person receiving the property becomes responsible for all or part of that debt, SDLT can treat the debt as payment.
This distinction matters because HMRC may charge tax when the debt counts as payment, while the buyer may also need to file an SDLT return. Those outcomes do not always coincide.
What the official source says
HMRC’s manual gives three examples. It says a gift with no money paid and no mortgage is not notifiable. In contrast, a gift where the recipient takes on a mortgage can be notifiable.
- A father gives his son a property worth £200,000.
- There is no mortgage and the son gives nothing for it.
- HMRC says that transfer is not notifiable.
- A mother gives her daughter a property worth £200,000.
- The daughter takes responsibility for a £180,000 mortgage.
- HMRC considers SDLT on the £180,000 debt and requires a return.
The legislation supports the central point. Mortgage debt assumed by the buyer counts as an amount paid for SDLT. It can also count when the mortgage remains secured on the property, while the transfer changes the parties’ rights or duties, even if the lender’s security itself remains unchanged. Debt still matters.
A gift with nothing given in return is exempt from SDLT. However, simply handing over no cash does not secure that exemption. Debt matters.
What this means in practice
Start with the mortgage, not the market value. Although a home may be worth £300,000, the relevant figure can be the share of mortgage debt that changes hands when the recipient assumes responsibility. Market value may not decide it.
This is the part people get wrong. A transfer can produce no SDLT bill but still need a return. HMRC’s third example makes that clear.
- Check whether there is a mortgage on the transfer date.
- Find the outstanding balance, not the original loan amount.
- Identify the share of the property that the transfer covers.
- Check who was responsible for the mortgage before the transfer.
- Check who is responsible after it.
- Do not assume that a zero tax bill means no return.
For major interests in land, the law provides an exception when the relevant amount, after including linked deals, falls below £40,000 and the facts fit its conditions. Leases have separate rules.
How to analyse it
Take the questions in order. That avoids mixing up the property’s value, the mortgage balance and the return requirement.
- Does the transfer involve land or a share in land?
- Is the transfer a gift, or is anything given in return?
- Is there mortgage debt secured on the property?
- Does the recipient take on all or part of that debt?
- Has either party’s duty to the lender changed?
- What is the amount of debt treated as payment?
- Are there linked property transfers to consider?
- Does an exemption or a return exception apply?
- Does the transaction still need an SDLT return?
If a return is required, the buyer must file it within 14 days after the effective date. In a straightforward completed transfer, that will commonly be the completion date. The exact date can matter.
Example
Illustration: Ben transfers half of his only home to Priya. The home is worth £300,000 and has a £200,000 mortgage. No cash is paid. If Priya takes responsibility for half the debt when Ben transfers half of his only home, the amount treated as paid is £100,000: half of £200,000. No cash is paid.
HMRC’s comparable example says no SDLT is due because that amount does not exceed the applicable tax threshold. Even so, HMRC says the transfer is notifiable. A return is therefore still needed.
Change one fact and the result may change. If there were no mortgage and Priya gave nothing else, the transfer would be a gift with nothing paid for it.
Why this can be difficult in practice
Mortgage arrangements are not always neat. A lender may leave one person named on the loan, add another person, or alter the parties’ responsibility in a less obvious way.
What actually decides the point? The legal and financial effect of the transfer, not the label used by the family or conveyancer.
- The property value is not automatically the SDLT figure.
- “No cash changed hands” does not settle the issue.
- A change in mortgage responsibility can be enough.
- Previous ownership can affect first-time buyer relief.
- In its third example, HMRC says that neither first-time buyer relief nor the extra rate on a second home applied, despite the mortgage arrangements described.
- That example does not replace the full statutory tests for those rules.
Keep the transfer deed, mortgage statement and lender documents together. They show the facts that matter if the SDLT treatment is later questioned.
Key takeaways
- A mortgage taken over can count as payment for SDLT.
- A gift with no mortgage and nothing else paid is generally exempt.
- No SDLT due does not always mean no SDLT return is required.
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 43 — what counts as a land transaction
- FA 2003 section 49 — when a land transaction is chargeable
- FA 2003 section 50 — rules for working out what is paid
- FA 2003 section 76 — deadline for filing a land transaction return
- FA 2003 section 77 — which land transactions need a return
- FA 2003 section 77A — exceptions from returns for certain major interests
- FA 2003 Schedule 3 para 1 — exemption where nothing is given for land
- FA 2003 Schedule 4 para 8 — mortgage debt taken over counts as payment
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 the person receiving the property has taken on mortgage debt depends on the loan terms and what changed on the transfer.
- The official examples do not give a complete test for first-time buyer relief or for the extra rate on a second home.
- The applicable SDLT rate and zero-rate threshold can depend on the transaction date and the type of property.
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 transfer deed or other document showing the share transferred
- A mortgage statement showing the balance on the transfer date
- The lender’s consent or loan documents showing who became responsible
- Details of any other linked property transfers
- The completion date and the property’s use
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 on a gifted home with a mortgage: when a return is needed [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 43 - what counts as a land transaction https://www.legislation.gov.uk/ukpga/2003/14/section/43/2025-11-17 - FA 2003 section 49 - when a land transaction is chargeable https://www.legislation.gov.uk/ukpga/2003/14/section/49/2025-11-17 - FA 2003 section 50 - rules for working out what is paid https://www.legislation.gov.uk/ukpga/2003/14/section/50/2025-11-17 - FA 2003 section 76 - deadline for filing a land transaction return https://www.legislation.gov.uk/ukpga/2003/14/section/76/2025-11-17 - FA 2003 section 77 - which land transactions need a return https://www.legislation.gov.uk/ukpga/2003/14/section/77/2025-11-17 - FA 2003 section 77A - exceptions from returns for certain major interests https://www.legislation.gov.uk/ukpga/2003/14/section/77A/2025-11-17 - FA 2003 Schedule 3 para 1 - exemption where nothing is given for land https://www.legislation.gov.uk/ukpga/2003/14/schedule/3/paragraph/1/2025-11-17 - FA 2003 Schedule 4 para 8 - mortgage debt taken over counts as payment https://www.legislation.gov.uk/ukpga/2003/14/schedule/4/paragraph/8/2025-11-17 Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm00330a 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 the person receiving the property has taken on mortgage debt depends on the loan terms and what changed on the transfer. - The official examples do not give a complete test for first-time buyer relief or for the extra rate on a second home. - The applicable SDLT rate and zero-rate threshold can depend on the transaction date and the type of property. 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 on a gifted home with a mortgage: when a return is needed
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