Example 6: Calculating Stamp Duty Land Tax on Variable Rent

SDLT on Leases with Variable or Uncertain Rent

This archived HMRC material is about how Stamp Duty Land Tax was worked out on lease rent that was not fixed at the start. The actual HMRC worked example is missing, so only the general topic can be summarised safely: where rent could change or was not known at the effective date, special SDLT rules applied and later review or adjustment might have been needed.

• SDLT on a lease could apply to both any premium paid and the rent under the lease.
• If the rent was variable, contingent, or uncertain, the SDLT position had to be worked out using the statutory rules in force at the time.
• The exact treatment depended on the lease wording, including whether the rent was fixed, stepped, index-linked, turnover-based, or dependent on future events.
• For historic cases, it is important to check the correct tax regime, as SDLT stopped applying to Scottish land transactions from April 2015 when LBTT took over.
• Because the archived source does not include the actual “Example 6”, it should not be relied on for detailed calculations without checking the legislation and the facts of the lease.

Scroll down for the full analysis.

SDLT on variable or uncertain rent: what this archived example is about

This page concerns how Stamp Duty Land Tax was calculated where the rent under a lease was variable or uncertain. The source is an archived HMRC manual page headed “Example 6”, but the scraped content provided does not include the example itself. That means the underlying topic can be identified, but the specific facts and calculation from the example are missing.

What this rule is about

Under SDLT, the grant of a lease can be taxed not only on any premium paid, but also on the rent. Where the rent is fixed, the calculation is more straightforward. Where the rent may change, or cannot be known with certainty at the effective date of the transaction, special rules are needed to work out the tax position.

This matters because lease rent is taxed by reference to the rent that is treated as chargeable at the relevant time. If the rent is uncertain, contingent, or variable, the taxpayer and conveyancer need to know what figure should be used for the SDLT return and whether later adjustments may be needed.

What the official source says

The official source provided here identifies the subject as “Calculation of stamp duty land tax: Rent: Variable or uncertain rent: Example 6”. It also states that the page is archived and notes that, from April 2015, SDLT no longer applies to land transactions in Scotland, which instead fall within Land and Buildings Transaction Tax.

Because the actual example text is not included in the source material supplied, it is not possible to reproduce or explain HMRC’s worked example itself. All that can safely be taken from the source is that it formed part of HMRC’s manual dealing with the SDLT treatment of lease rent where the rent was variable or uncertain.

What this means in practice

If you are dealing with an SDLT question on an old lease transaction, the key practical point is that variable or uncertain rent was not ignored. It had to be brought into the SDLT analysis using the statutory rules that applied to uncertain or variable rent at the time.

In practice, the important questions are usually:

• Was the transaction within SDLT at all, or was it in Scotland after LBTT replaced SDLT there?
• Was the chargeable consideration made up of rent, premium, or both?
• Was the rent fixed from the outset, or could it vary?
• Was the variation built into the lease formula, dependent on future events, or genuinely not known at the effective date?
• Did the SDLT return need to be based on an estimate or statutory assumption, with later review or adjustment?

The archived notice about Scotland is also important. A manual page like this may still help with historic SDLT transactions in Scotland before April 2015, but it does not govern Scottish land transactions after LBTT took over.

How to analyse it

A sensible way to approach a lease with variable or uncertain rent is:

• Identify the tax regime. Check whether the transaction falls under SDLT, LBTT, or LTT by reference to jurisdiction and timing.
• Read the lease terms carefully. The answer depends on what the lease actually says about rent review, turnover rent, index-linked rent, stepped rent, or contingent payments.
• Separate fixed elements from uncertain elements. Some rents are partly known and partly variable.
• Check what the legislation required at the effective date. HMRC manual examples can help explain HMRC’s view, but the legislation remains the legal starting point.
• Consider whether a later return amendment, further return, or recalculation was required under the rules then in force.

Where the only material available is an incomplete archived manual page, it is especially important not to rely on the heading alone. The exact treatment of variable rent depends heavily on the statutory wording and the facts of the lease.

Example

Illustration: a tenant takes a lease and the rent is made up of a base rent plus an additional amount linked to future turnover. At the effective date, the future turnover figure is not yet known. That creates an SDLT question about how the rent should be treated for tax purposes at that point, and whether the initial filing position may later need to be revisited once the rent becomes known or can be measured under the statutory rules.

This is only a general illustration of the issue. The missing HMRC “Example 6” may have involved different facts.

Why this can be difficult in practice

Variable or uncertain rent cases are often fact-sensitive. A rent is not necessarily “uncertain” just because it changes over time. Some changes are fixed by the lease from day one, such as stepped increases on set dates. Others depend on future events, market values, turnover, indexation, or options being exercised. The tax treatment may differ depending on the nature of the variation.

There is also a source issue here. The material supplied is only a page title and archive notice, not the substantive example. So there is a limit to how far the official position on this particular example can be explained without risking inaccuracy.

Key takeaways

• This archived HMRC page relates to SDLT on lease rent that was variable or uncertain.
• The actual worked example is missing from the supplied source, so only the topic, not the detailed HMRC reasoning, can be safely explained.
• For any real transaction, the lease terms, timing, jurisdiction, and the statutory SDLT rules in force at the time are critical.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Example 6: Calculating Stamp Duty Land Tax on Variable Rent

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