Turnover leases: how uncertain rent affects stamp duty
Turnover rent and stamp duty
Where rent depends on business results, the first stamp duty calculation uses reasonable estimates. The figures may need revisiting as the rent becomes known.
- Keep evidence supporting the original estimate.
- Use the highest first-five-year annual rent for later years.
- Check the current law before following the manual’s later-return instructions.
Scroll down for the full analysis.
Read the original guidance here:
Turnover leases: how uncertain rent affects stamp duty
If your lease rent depends on shop sales, profit or turnover, you cannot know the full rent when you sign. Stamp duty land tax uses an estimate at first. That estimate may need checking again later.
What this rule is about
A turnover lease is common for shops, restaurants and other trading premises. Part of the rent may rise or fall with the tenant’s business results.
Because stamp duty on rent is calculated from its net present value, often called NPV, uncertainty about future turnover prevents an exact calculation when the lease begins. This puts future rent into one figure for tax purposes.
The law deals with this by allowing a reasonable estimate for the early years. It also has a special rule for rent after year five.
What the official source says
When the lease begins, HMRC’s manual describes turnover-based rent as variable and uncertain, and says you should estimate rent for each of the first five years while keeping evidence of how you reached those figures. Keep that evidence.
- Use a reasonable estimate where first-five-year rent is not known.
- Use the highest actual or estimated rent in any consecutive 12-month period in those five years for later years.
- Ignore possible rent rises after year five when choosing that highest first-five-year figure.
- For a lease lasting less than five years, use the shorter lease term.
- File the first return within 14 days after the effective date if the lease is notifiable.
The legislation supports the estimate and highest-rent approach. It says variable, contingent, uncertain or unascertained rent in the first five years is dealt with under the general rule for uncertain amounts.
After the fifth year, the assumed annual rent is the highest rent for any consecutive 12-month period in the first five years. This is not an attempt to predict every later trading result.
What this means in practice
Do not wait for future accounts before dealing with the first stamp duty return, because the initial position must be based on a reasonable estimate of what was known when the lease began. Start there.
What makes an estimate reasonable will depend on the business and lease terms. It may use past trading, agreed forecasts, budgets, footfall data, or the expected opening date. Keep the workings.
- Save the forecasts and accounts available when you made the estimate.
- Keep the lease clause that sets out the turnover rent.
- Record each rent payment for the first five years.
- Identify the highest 12-month rent period as figures develop.
- Check whether the later figures change the tax result.
HMRC’s manual says that returns should be made at the end of year five and once the first five years’ rent is final. But the current legislation is more limited. It requires a new or further return if the recalculation makes the lease notifiable, creates tax where none was due, or creates extra tax.
That distinction matters. The manual is HMRC guidance. It is not the law.
How to analyse it
Begin with the rent clause rather than the lease label. A lease called a turnover lease may include fixed rent, a turnover top-up, a minimum payment, or several different rent periods.
- Check whether any rent depends on future turnover, profit or another unknown event.
- Separate known fixed rent from the uncertain part.
- Estimate each of the first five years on a reasonable basis.
- Calculate the NPV using those figures.
- Find the highest rent for any consecutive 12-month period in the first five years.
- Use that figure as the assumed annual rent after year five.
- At year five, reconsider the calculation using actual figures or revised estimates.
- When the early rent becomes final, reconsider it again if necessary.
- Check whether the statutory conditions for a later return are met.
If more tax is due after a recalculation, the later return must include the tax calculation and the extra tax must be paid by its filing date. The law uses the rates in force when the lease originally took effect.
Interest can also matter. For an unpaid extra amount, the legislation can make interest run from the original transaction’s effective date, rather than from the later review.
Example
Amir takes a ten-year shop lease. Its rent depends partly on annual shop turnover. When the lease starts, he reasonably estimates that rent for years one to five will be £20,000, £35,000, £45,000, £50,000 and £60,000. Those are his initial figures.
For the years after year five, the starting calculation uses £60,000 a year. That is the highest estimated rent in a consecutive 12-month period during the first five years.
At the five-year point, the actual figures are £25,000, £40,000, £55,000, £50,000 and £65,000. The highest figure is now £65,000. He must recalculate the NPV using the actual figures, or revised estimates if final accounts are still unavailable.
If that recalculation creates extra tax, a further return is required within 30 days of the relevant event. If it does not create the statutory trigger for a return, the legislation does not say that a further return is automatically required merely because year five has arrived.
Why this can be difficult in practice
The hard part is often not the maths. It is deciding whether the first estimate was reasonable and knowing when the rent has become final.
You might think final rent means money has been paid. It may not. The lease terms and accounts may leave room for a later correction, audit or turnover adjustment.
- A turnover clause may have a minimum rent as well as a variable top-up.
- Accounts may be available but not yet agreed or final.
- A 12-month period may not match the tenant’s accounting year.
- The highest figure may change when an estimate is replaced by final rent.
- Interest may apply even though the later review revealed the extra tax.
- HMRC’s old manual wording should not be treated as the full current filing rule.
This is the part people miss: evidence of the original estimate matters. A forecast made at the time is stronger than an explanation created years later.
Key takeaways
- Turnover rent is uncertain when the lease starts.
- Use and retain evidence for a reasonable first estimate.
- Use the highest first-five-year annual rent for later years.
- Recheck the calculation at year five and when rent becomes final.
- Check the current statutory trigger before making a later return.
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 — reasonable estimates for uncertain amounts paid
- FA 2003 section 76 — deadline for the first stamp duty return
- FA 2003 section 86 — when stamp duty shown on a return is paid
- FA 2003 section 87 — interest on unpaid tax from the relevant date
- FA 2003 section 89 — interest on tax repaid by HMRC
- FA 2003 Schedule 5 para 2 — tax calculation on the present value of rent
- FA 2003 Schedule 5 para 3 — present-value calculation for rent over a lease term
- FA 2003 Schedule 10 para 9 — records needed to support a correct return
- FA 2003 Schedule 17A para 7 — treatment of variable and uncertain lease rent
- FA 2003 Schedule 17A para 8 — adjustments when uncertain rent becomes known
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 official manual says that a further return is always required at the five-year point and again when accounts are final. The current legislation instead makes a later return depend on whether the recalculation makes the deal notifiable, creates tax where none was due, or creates extra tax.
- The manual refers to a penalty under Schedule 10 paragraph 8. That paragraph has been omitted from the current legislation. The current penalty and filing position should be checked against up-to-date HMRC material and primary law.
- The correct way to submit a later return or notify HMRC may have changed since the manual referred to sending a letter to the Stamp Office.
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 any side agreements
- the turnover or profit clause and calculation method
- the estimates used when the lease started
- trading accounts and rent statements for the first five years
- evidence of when the relevant accounts became final
- the original stamp duty return and payment record
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 Turnover leases: how uncertain rent affects stamp duty [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 - reasonable estimates for uncertain amounts paid https://www.legislation.gov.uk/ukpga/2003/14/section/51/2025-11-17 - FA 2003 section 76 - deadline for the first stamp duty return https://www.legislation.gov.uk/ukpga/2003/14/section/76/2025-11-17 - FA 2003 section 86 - when stamp duty shown on a return is paid https://www.legislation.gov.uk/ukpga/2003/14/section/86/2025-11-17 - FA 2003 section 87 - interest on unpaid tax from the relevant date https://www.legislation.gov.uk/ukpga/2003/14/section/87/2025-11-17 - FA 2003 section 89 - interest on tax repaid by HMRC https://www.legislation.gov.uk/ukpga/2003/14/section/89/2025-11-17 - FA 2003 Schedule 5 para 2 - tax calculation on the present value of rent https://www.legislation.gov.uk/ukpga/2003/14/schedule/5/paragraph/2/2025-11-17 - FA 2003 Schedule 5 para 3 - present-value calculation for rent over a lease term https://www.legislation.gov.uk/ukpga/2003/14/schedule/5/paragraph/3/2025-11-17 - FA 2003 Schedule 10 para 9 - records needed to support a correct return https://www.legislation.gov.uk/ukpga/2003/14/schedule/10/paragraph/9/2025-11-17 - FA 2003 Schedule 17A para 7 - treatment of variable and uncertain lease rent https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/paragraph/7/2025-11-17 - FA 2003 Schedule 17A para 8 - adjustments when uncertain rent becomes known 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/sdltm13185 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 official manual says that a further return is always required at the five-year point and again when accounts are final. The current legislation instead makes a later return depend on whether the recalculation makes the deal notifiable, creates tax where none was due, or creates extra tax. - The manual refers to a penalty under Schedule 10 paragraph 8. That paragraph has been omitted from the current legislation. The current penalty and filing position should be checked against up-to-date HMRC material and primary law. - The correct way to submit a later return or notify HMRC may have changed since the manual referred to sending a letter to the Stamp Office. 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: Turnover leases: how uncertain rent affects stamp duty
Search Land Tax Advice with Google
