Stamp duty where part of the price is an annuity
At a glance
For certain long-term non-rent annuities in a property deal, SDLT counts no more than twelve annual payments.
- It covers payments for life, forever, indefinitely, or for over twelve years.
- Variable payments usually mean using the twelve highest years.
- The statute specifically refers to retail price index adjustments.
Scroll down for the full analysis.
Read the original guidance here:
Stamp duty where part of the price is an annuity
If you buy land or property and agree to regular payments instead of one full price, stamp duty may count only twelve years of those payments.
This can make a great difference. The rule applies to certain long-term annuities, rather than rent.
What this rule is about
In a property transaction, an annuity is a regular payment that the buyer undertakes to make. It may last for a person’s life, continue forever, or run for a long fixed period, depending on the terms agreed by buyer and seller. SDLT requires a figure for the amount paid for the property.
The law prevents an open-ended or very long payment promise from being counted in full.
For this part of the stamp duty calculation, it limits the payments counted to twelve years. This applies even if the obligation lasts longer or has no end date. That is the statutory cap.
What the official source says
HMRC’s manual explains this rule in Finance Act 2003 section 52. It says that SDLT treats the relevant amount as twelve years’ payments when the annuity is not rent and falls within one of the following categories.
- It is payable for a person’s life.
- It is payable forever.
- It is payable for an unspecified period.
- It is payable for a fixed period longer than twelve years.
If payments differ from year to year, the law uses the twelve highest annual payments.
Annual periods are calculated from the transaction’s effective date. This will usually be an important date in the purchase, determining where each twelve-month period starts and how the annual payment periods are measured for SDLT purposes. The effective date matters.
HMRC’s manual says that a change solely for inflation does not trigger the highest-payment rule. The statutory wording is narrower, referring specifically to adjustments made in line with the retail price index. HMRC guidance is not law.
What this means in practice
Rather than adding every future payment promised under the contract, first establish whether it is a qualifying annuity and calculate the amount for twelve years. Use that as the starting figure. Apply the SDLT rates and bands for your deal to the relevant amount.
- Check whether the regular payment is part of the price, rather than rent.
- Check how long the payment obligation can last.
- Add twelve annual payments if the amount stays the same.
- Use the twelve highest annual payments if amounts can vary.
- Keep the contract and payment formula with your tax records.
How to analyse it
Start with the documents, not the seller’s label. The label is not decisive: a payment described as an annuity may be rent, or may instead form a separate element of the price. The distinction is important.
- Identify each regular payment promised for the land.
- Separate rent from other periodic payments.
- Determine whether the non-rent payment can continue for more than twelve years, for life, forever, or for an unspecified period without a fixed end date.
- Divide the payments into successive twelve-month periods from the effective date.
- Check whether the amount can change and why.
- Value uncertain payments using the separate rules where needed.
Example
Amir purchases land and undertakes to pay the seller £10,000 each year for the seller’s life. This payment is not rent.
For this part of the SDLT calculation, the amount counted is £120,000: twelve payments of £10,000.
It is not the total that might be paid over the seller’s lifetime.
Why this can be difficult in practice
Mistakes often arise here because regular payments do not always receive the same treatment. Rent has separate SDLT rules. A payment that is partly rent and partly price may need to be split.
- A contract may not clearly say whether a payment is rent.
- A price linked to sales, profits, or an index may be uncertain.
- Not every index is necessarily the retail price index named in the legislation.
- The twelve highest payments may not be the first twelve payments.
There is another important limit. For an annuity within section 52, the normal rules that can adjust tax when an uncertain amount later becomes known do not apply.
The usual deferral process for certain uncertain future payments cannot be used either.
Key takeaways
- A qualifying long-term annuity is normally capped at twelve annual payments for SDLT.
- Rent is outside this annuity rule.
- Changing payments can mean using the twelve highest annual amounts.
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 51 — valuing uncertain or conditional amounts paid for land
- FA 2003 section 52 — limiting annuity payments counted for stamp duty
- FA 2003 section 80 — adjusting tax when uncertain amounts become known
- FA 2003 section 90 — deferring tax on certain uncertain future payments
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
- HMRC’s manual says the exception covers inflation-only changes. The legislation expressly mentions the retail price index, not every inflation measure. A contract using another index needs careful checking.
- This page cannot confirm the SDLT result without the transaction date, the contract terms, and the type of land bought.
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 purchase contract and any side agreement
- The payment schedule and length of the payment obligation
- Details of every index or formula that can change payments
- The transaction’s effective date
- Whether any part of the periodic payment is rent
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 where part of the price is an annuity [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 51 - valuing uncertain or conditional amounts paid for land https://www.legislation.gov.uk/ukpga/2003/14/section/51/2025-11-17 - FA 2003 section 52 - limiting annuity payments counted for stamp duty https://www.legislation.gov.uk/ukpga/2003/14/section/52/2025-11-17 - FA 2003 section 80 - adjusting tax when uncertain amounts become known https://www.legislation.gov.uk/ukpga/2003/14/section/80/2025-11-17 - FA 2003 section 90 - deferring tax on certain uncertain future payments https://www.legislation.gov.uk/ukpga/2003/14/section/90/2025-11-17 Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm06010 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 - HMRC's manual says the exception covers inflation-only changes. The legislation expressly mentions the retail price index, not every inflation measure. A contract using another index needs careful checking. - This page cannot confirm the SDLT result without the transaction date, the contract terms, and the type of land bought. 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: Stamp duty where part of the price is an annuity
Search Land Tax Advice with Google
