Backdated lease after holding over: stamp duty treatment
Backdated leases and SDLT
A tenant who stays on and later receives a backdated lease may have that lease treated as starting on its stated date for SDLT.
- Check continued occupation.
- Check that the premises are the same or substantially the same.
- Avoid counting taxable gap-period rent twice.
Scroll down for the full analysis.
Read the original guidance here:
Backdated lease after holding over: stamp duty treatment
If a tenant stays after a lease ends and later receives a lease dated back to that end date, the new lease may start earlier for stamp duty land tax purposes. This can change the rent used in the SDLT calculation.
What this rule is about
Sometimes a lease expires, but the tenant remains in the property while the parties agree a replacement lease. People often call this holding over. A new document may then say that its term began when the old lease ended.
Where a tenant has paid rent under the old arrangement during the gap before the parties sign the new lease, that payment can affect the eventual SDLT calculation. That gap can matter.
What the official source says
HMRC has archived the page, and although it provides no detailed explanation of this point, the legislation sets out a rule for a landlord who grants a backdated lease to a tenant who has stayed on. This rule applies.
- The tenant must remain in occupation after the old lease ends.
- The new lease must cover the same, or substantially the same, premises.
- The new lease must state a term that starts on, or immediately after, the old lease’s end date.
- For SDLT, the new lease starts on that stated date.
What this means in practice
As a result, the SDLT calculation for the new lease can include the period before the landlord formally grants it. But the law avoids counting the same taxable rent twice.
- The SDLT calculation deducts gap-period rent when it has already counted that rent for SDLT.
- This reduction applies only to rent for that period.
- The calculation cannot reduce the new lease’s rent below zero.
How to analyse it
Start with the documents, not the label the parties use. A lease called a renewal may still need this close review.
- Find the contractual end date of the old lease.
- Check whether the tenant actually stayed in occupation.
- Compare the premises that both leases show.
- Read the stated start date in the new lease.
- Identify rent the tenant paid during the gap.
- Check whether SDLT already counted that rent.
Example
A tenant stays after an old lease ends. Later, after the old lease ends and the tenant stays in the unit, the landlord grants a replacement lease of the same unit that expressly begins immediately after that end date. SDLT treats the replacement lease as beginning then. Where it has already counted gap-period rent under the replacement lease, the SDLT calculation deducts that rent.
Why this can be difficult in practice
Plans, side letters and rent records often conceal the key facts. Details matter. Small changes to the area that the lease lets, or a start date that leaves a gap, may mean the specific rule does not fit.
- Do not assume every later lease is backdated for SDLT.
- Do not count gap-period rent twice without checking its tax treatment.
- Do not use this SDLT rule for a Scottish transaction after April 2015.
Key takeaways
- A qualifying new lease can start on its stated earlier date.
- Matching premises and continued occupation matter.
- Earlier taxable rent may reduce, but never exceed, new-lease 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 Schedule 17A para 9A — backdated leases granted to tenants holding over
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 premises are the same or substantially the same can depend on the lease plans and the facts.
- Whether rent during the holding-over period was taxable rent depends on whether it was taken into account for SDLT.
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 old lease and its end date.
- Evidence that the tenant stayed in occupation.
- The new lease, including its stated start date and plans.
- A record of rent paid during the gap and any earlier SDLT calculation.
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 Backdated lease after holding over: stamp duty treatment [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 Schedule 17A para 9A - backdated leases granted to tenants holding over https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/paragraph/9A/2025-11-17 HMRC's guidance page on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm18750 HOW I WANT YOU TO ANSWER 1. Work from the legislation above. Read it before answering. HMRC guidance is HMRC's 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 premises are the same or substantially the same can depend on the lease plans and the facts. - Whether rent during the holding-over period was taxable rent depends on whether it was taken into account for SDLT. 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: Backdated lease after holding over: stamp duty treatment
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