Stamp duty on lease rent: why a later rent rise may be ignored
Later rent rises and SDLT
For a lease with changing rent, the SDLT rent calculation can use the highest annual rent in the first five years for all later years.
- Known rent in year nine was ignored in HMRC’s example.
- The first five years set the assumed later annual rent.
- Uncertain rent can need different treatment.
Scroll down for the full analysis.
Read the original guidance here:
Stamp duty on lease rent: why a later rent rise may be ignored
Stamp duty on lease rent: why a later rent rise may be ignored
For stamp duty land tax on a lease, a planned rent rise after year five may not enter the rent calculation. The calculation can instead use the highest annual rent from the first five years. This may seem odd, but the method applies to changing rent.
What this rule is about
A lease can attract a stamp duty charge based on its rent. The calculation uses the rent’s net present value, or NPV. In simple terms, it reduces future rent because money paid later has less value today.
When rent changes during a lease, the law takes the same approach to later years. Year five marks the boundary.
What the official source says
HMRC’s manual gives a ten-year example. The lease starts on 1 January 2018.
Rent is £100,000 a year. It rises to £130,000 on 1 January 2022 and £140,000 on 1 January 2026.
- Rent for years one to four is £100,000 each year.
- Rent for year five is £130,000.
- The highest annual rent in the first five years is therefore £130,000.
- For years six to ten, the NPV calculation uses £130,000 a year.
- HMRC’s example leaves the £140,000 rise in year nine out of that calculation.
What this means in practice
For rent after the first five years, when the lease specifies later increases but the first five years establish a highest annual amount, use that amount in the SDLT rent calculation. Do not include every known future rent rise.
This is the point people can miss: the later rise is real rent under the lease, but it does not alter this part of the SDLT calculation.
- Set out the rent due for each of the first five years.
- Find the highest amount due over any twelve-month period in that window.
- Use that annual amount for each later year when working out the NPV.
- Do not treat the manual example as a calculation of the final SDLT bill.
How to analyse it
Start with the lease wording, because you must establish whether it fixes the rent change or leaves the amount dependent on something unknown before applying the calculation. Check later payments afterwards.
Decide whether the lease builds in the change or whether an unknown factor determines the amount.
- Confirm the date the lease term starts.
- Check its total length.
- List rent for the first five years in date order.
- Identify the highest twelve-month rent in that period.
- Use that figure as the assumed annual rent after year five.
- Then apply the NPV method to the rent schedule.
Example
In HMRC’s example, the first four years each have rent of £100,000. Year five has rent of £130,000.
The calculation therefore uses £130,000 for years six, seven, eight, nine and ten. The lease says rent rises to £140,000 in year nine.
That increase falls outside the first five years. It does not enter the NPV rent figures.
Why this can be difficult in practice
A fixed rent increase differs from rent that could change because of an uncertain event. That distinction matters.
The official example states that no revised return is needed at the end of year five. The original figures contained no estimates or uncertain amounts.
- A clause linked to future turnover may need different treatment.
- An uncertain rent review can trigger a later reconsideration of the calculation.
- Dates matter: a rise near the fifth-year boundary can change the result.
- Do not confuse the rent actually paid with the rent figure required for the SDLT calculation.
Key takeaways
- For changing rent, use the first five years’ highest annual amount for years after year five.
- HMRC’s example leaves out a known increase in year nine.
- No revised return was needed because the first five years contained no estimated or uncertain rent.
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 56 — rent is taxed under schedule 5 rules
- FA 2003 Schedule 5 para 2 — rental value is the rent’s net present value
- FA 2003 Schedule 5 para 3 — how to calculate net present value of rent
- FA 2003 Schedule 17A para 7 — when special rules cover changing or uncertain rent; treatment of rent in the first five years; rent assumed after the first five lease years
- FA 2003 section 51 — treatment of contingent or uncertain amounts paid
- FA 2003 Schedule 17A para 8 — when uncertain rent requires the calculation reconsidered
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
- A rent clause may need close reading where its amount depends on turnover, a future review, an index, or another event.
- This page does not establish the SDLT payable on any particular lease.
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 signed lease and every rent review clause
- the lease start date and length of term
- a year-by-year schedule of rent due in the first five years
- details of any rent amount that was uncertain when the lease began
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 lease rent: why a later rent rise may be ignored [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 56 - rent is taxed under schedule 5 rules https://www.legislation.gov.uk/ukpga/2003/14/section/56/2025-11-17 - FA 2003 Schedule 5 para 2 - rental value is the rent's net present value https://www.legislation.gov.uk/ukpga/2003/14/schedule/5/paragraph/2/2025-11-17 - FA 2003 Schedule 5 para 3 - how to calculate net present value of rent https://www.legislation.gov.uk/ukpga/2003/14/schedule/5/paragraph/3/2025-11-17 - FA 2003 Schedule 17A para 7 - when special rules cover changing or uncertain rent https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/paragraph/7/2025-11-17 - FA 2003 Schedule 17A para 7 - treatment of rent in the first five years https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/paragraph/7/2025-11-17 - FA 2003 Schedule 17A para 7 - rent assumed after the first five lease years https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/paragraph/7/2025-11-17 - FA 2003 section 51 - treatment of contingent or uncertain amounts paid https://www.legislation.gov.uk/ukpga/2003/14/section/51/2025-11-17 - FA 2003 Schedule 17A para 8 - when uncertain rent requires the calculation reconsidered https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/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/sdltm13210 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 - A rent clause may need close reading where its amount depends on turnover, a future review, an index, or another event. - This page does not establish the SDLT payable on any particular lease. 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 on lease rent: why a later rent rise may be ignored
Search Land Tax Advice with Google
