Example 8: Calculating SDLT on Variable Rent Transactions

SDLT on Leases with Variable or Uncertain Rent

The archived HMRC page called “Example 8” appears to have dealt with how SDLT applies when lease rent is not fully fixed at the start. However, the actual example and HMRC’s reasoning are missing, so the safest summary is that variable or uncertain rent can make SDLT on the rental element harder to calculate and may require careful review of the lease terms and, in some cases, later adjustments.

• SDLT on a lease can apply to both any premium paid and the rent payable under the lease.
• If the rent can change or depends on future events, the SDLT position may be less straightforward than for a fixed rent lease.
• Important points include what rent is known at the effective date and whether the lease uses turnover rent, indexation, review clauses, stepped rent, or other contingent terms.
• The archived source confirms only that HMRC had an example on variable or uncertain rent; it does not provide the facts or the conclusion.
• The page is historically limited for Scotland, because from April 2015 Scottish land transactions moved from SDLT to LBTT; Wales may also fall under LTT rather than SDLT depending on the transaction.
• Because the manual example is incomplete and archived, any detailed SDLT treatment should be checked against the legislation and current HMRC guidance.

Scroll down for the full analysis.

SDLT and variable or uncertain rent: understanding HMRC’s archived Example 8

This page concerns how Stamp Duty Land Tax was calculated where a lease involved rent that was variable or uncertain. The official source is an archived HMRC manual page headed “Example 8”, but the extracted text contains only the title and a note that the page is archived. That means the source does not provide the actual example or HMRC’s reasoning. The safest approach is therefore to explain the legal topic identified by the title, while being clear about the limits of the material supplied.

What this rule is about

For SDLT on leases, tax can be charged not only on any premium but also on the rental element. Where the rent is fixed, the calculation is usually more straightforward. Where the rent is variable or uncertain, the position becomes harder because the tax calculation may depend on rent that is not fully known at the start of the lease.

The title of the source shows that HMRC was dealing with an example about “variable or uncertain rent”. In practice, that kind of example would normally be aimed at showing how the rental element of SDLT is approached when the lease does not provide a single fixed rent figure for the whole term.

What the official source says

The supplied source material does not include the substance of Example 8. It tells us only:

• the page formed part of HMRC’s SDLT manual under the calculation of SDLT on rent,
• the example related to variable or uncertain rent, and
• the page is archived, with a note that from April 2015 SDLT no longer applies to land transactions in Scotland because LBTT applies there instead.

That final point matters. The manual page is part of the SDLT regime and is now historically limited in Scottish cases. SDLT still applies to land transactions in England and Northern Ireland, but not to post-devolution Scottish land transactions.

What this means in practice

The practical takeaway from the source title is that rent clauses in leases need careful review for SDLT purposes where the rent is not fully fixed from the outset.

In broad terms, a variable or uncertain rent provision may affect:

• how the rental consideration is valued at the effective date of the transaction,
• whether later adjustments or further returns may be needed, and
• whether the parties can confidently calculate SDLT at the start of the lease.

Because the actual Example 8 text is missing, the source supplied does not let us say exactly what factual pattern HMRC was illustrating. For example, we cannot tell whether the example involved turnover rent, index-linked rent, stepped rent, a review clause, or a contingency affecting the amount payable. Those distinctions can matter.

How to analyse it

If you are dealing with a lease and the rent is not simply a fixed annual amount, the sensible questions are:

• Is the rent fixed from the outset, or can it change?
• If it can change, is the change built into the lease by a known formula, or does it depend on future events that are uncertain?
• Does the lease contain review provisions, turnover-based elements, indexation, caps, floors, or contingent rent?
• At the effective date, what rental amounts are actually known?
• Does the SDLT treatment require an initial calculation based on available figures, with the possibility of later adjustment?
• Is the transaction in England or Northern Ireland, where SDLT applies, or in Scotland or Wales, where different land transaction taxes may apply?

The archive note also means you should check whether you are looking at a historical SDLT position or a current one. For Scottish land transactions from April 2015 onward, LBTT applies instead of SDLT. Welsh transactions may fall under LTT rather than SDLT depending on timing and location.

Example

Illustration: a tenant takes a lease under which the rent is £20,000 a year for the first two years, and after that the rent depends partly on the tenant’s turnover. That is the kind of arrangement that raises the question flagged by the source title: the rent is not wholly fixed for the full term when the lease is granted.

In that situation, the SDLT analysis would need to focus on what is known at the effective date, what is genuinely uncertain, and whether the legislation requires later adjustment once the uncertain amount becomes known. The supplied source does not give the answer for this specific illustration, but it shows the type of issue HMRC’s Example 8 was intended to address.

Why this can be difficult in practice

The phrase “variable or uncertain rent” covers several different lease structures, and they do not always raise the same issue.

• A rent that changes under a fixed schedule may be easier to deal with than a rent that depends on future turnover.
• A review clause may differ from a contingency that may never happen.
• The tax result may depend on whether the future amount is ascertainable from the lease terms or truly unknown at the start.

Another difficulty is source quality. An archived manual example can be useful, but a manual is not the same as legislation. If the example text is unavailable, it should not be treated as authority for a detailed conclusion. The legislation and any current HMRC guidance would need to be checked before relying on a particular treatment.

Key takeaways

• The supplied source identifies a lease SDLT issue about rent that is variable or uncertain, but it does not include the actual example.
• Where lease rent is not fully fixed at the start, SDLT on the rental element may require closer analysis and sometimes later adjustment.
• The page is archived and includes a Scotland-specific note: from April 2015, Scottish land transactions fall under LBTT, not SDLT.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Example 8: Calculating SDLT on Variable Rent Transactions

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