When does a lease have an indefinite term for SDLT?
The short answer
For SDLT, an indefinite lease term is one whose end date cannot be worked out when the lease is granted. Periodic tenancies are the usual example.
- Check the lease and linked documents together.
- A break clause does not by itself make a fixed lease indefinite.
- A lease for life is treated as indefinite for SDLT.
Scroll down for the full analysis.
Read the original guidance here:
When does a lease have an indefinite term for SDLT?
A lease may have an indefinite term for stamp duty land tax when the parties expect a short arrangement but cannot calculate its end date from the relevant documents at grant. Expectation does not decide. The grant-date documents decide. If they do not reveal an end date, HMRC treats the lease as having an indefinite term.
What this rule is about
SDLT on a lease may depend not merely on how long it lasts, but on whether the parties can identify that duration under the terms they agreed. Wording matters. A lease may end when someone gives notice, rather than on a set date.
Do not assume that any right to end a lease makes the term indefinite. People often make that mistake.
HMRC’s manual sets out its view of this question. The manual is guidance, not law. The legislation sets out the SDLT treatment once a lease has an indefinite term.
What the official source says
HMRC says a lease has an indefinite term where, when the parties grant it, they cannot work out its length solely from the lease or a related document. That is HMRC’s test. Related documents can include an agreement for lease or a practical-completion certificate.
- A periodic tenancy is the most common example.
- It carries on from one period to the next unless someone gives notice.
- An express periodic tenancy states its period in the agreement.
- An implied periodic tenancy normally follows the rent-payment period.
- A lease for life also has an indefinite term for SDLT.
- That remains HMRC’s view even though English law may treat a lease for life as lasting 90 years for other purposes.
A fixed-term lease is different. When the parties can work out its end date when they grant it, the SDLT rules ignore either side’s right to end it early. A break clause alone changes nothing. A break clause does not turn a known five-year lease into an indefinite one.
What this means in practice
First, identify the actual term, then check whether the documents available when the parties granted the lease let you calculate its end date. Later knowledge is irrelevant.
For SDLT purposes, the legislation initially treats an indefinite lease as a one-year fixed-term lease and, if the tenants continue, treats it as a two-year lease, then a three-year lease, and so on. The assumed term grows annually.
- Read the whole lease, not only the heading or summary.
- Check any agreement that sits beside the lease.
- Check whether an outside event sets the end date.
- Separate a fixed end date from a right to break early.
- Record whether the arrangement is periodic from the start.
- Keep the documents that show how the term was agreed.
Rather than making every periodic tenancy taxable, the SDLT rules use a special method for a term that continues to run without a known end date. Tax does not automatically follow.
How to analyse it
Start by reading the documents that the parties had when they granted the lease. The question is not what the parties hoped would happen. Ask whether they could then work out the end date.
- What date was the lease granted?
- Does the lease state a start date and an end date?
- Does another document supply a missing date?
- Does the lease end only after someone gives notice?
- Does it continue automatically from month to month or another period?
- Is there a fixed term with an early break right instead?
- Is the arrangement described as a lease for life?
If the lease has a fixed end date, a notice right may be irrelevant for SDLT. If the parties cannot work out an end date, the indefinite-term rules may apply instead.
Example
Maya signs an agreement to rent a flat monthly for £900. Neither the agreement nor another linked document gives an end date. Either side can end it by giving notice. HMRC would regard this as a periodic tenancy and, therefore, a lease for an indefinite term.
Change one fact. Maya instead has a lease from 1 April to 31 March, with a right for either side to end it early by notice. The parties can still work out the end date on the grant date. For SDLT, the early-ending right is ignored when deciding the fixed term.
Why this can be difficult in practice
The answer may not appear in one clause. A lease might refer to construction finishing, a certificate being issued, or another agreement. Those papers may make the end date clear. Or they may not.
Words such as “until determined” also need care. They can point to a lease that keeps going after an initial fixed term, rather than one that was indefinite from the start.
- A monthly rent payment does not always prove there is a monthly tenancy.
- A break clause does not automatically create an indefinite term.
- A missing end date in one document may be supplied by another document.
- The label used by the parties does not settle the SDLT answer.
- A lease for life needs separate care because other legal rules may describe its length differently.
Key takeaways
- Ask whether the end date was knowable when the lease was granted.
- Periodic tenancies are the usual indefinite-term example.
- A fixed term stays fixed for SDLT despite an early break right.
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 2 — ignoring break rights in fixed-term leases
- FA 2003 Schedule 17A para 4 — tax treatment of indefinite lease terms; examples of leases ending by notice
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 a term can be worked out at the grant date may depend on the full lease, an agreement for lease, a completion certificate and the surrounding documents.
- The supplied material does not give a full answer for every unusual tenancy or arrangement that can end by notice.
- The statutory extract is verified only to 17 November 2025. Current-law status must be checked for a transaction after that date.
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 or tenancy agreement
- Any agreement for lease
- Any document setting the start or end date
- A practical-completion certificate where relevant
- Details of how and when rent is paid
- The date the lease was granted
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 When does a lease have an indefinite term for SDLT? [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 2 - ignoring break rights in fixed-term leases https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/paragraph/2/2025-11-17 - FA 2003 Schedule 17A para 4 - tax treatment of indefinite lease terms https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/paragraph/4/2025-11-17 - FA 2003 Schedule 17A para 4 - examples of leases ending by notice https://www.legislation.gov.uk/ukpga/2003/14/schedule/17A/paragraph/4/2025-11-17 HMRC's guidance page on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm14045 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 a term can be worked out at the grant date may depend on the full lease, an agreement for lease, a completion certificate and the surrounding documents. - The supplied material does not give a full answer for every unusual tenancy or arrangement that can end by notice. - The statutory extract is verified only to 17 November 2025. Current-law status must be checked for a transaction after that date. 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: When does a lease have an indefinite term for SDLT?
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