Example 3: Five-Year Rent Reviews for Stamp Duty Land Tax Calculation

SDLT and Five-Year Rent Reviews on Leases

HMRC’s archived Example 3 appears to have explained how SDLT applied where a lease included five-year rent reviews and the future rent was not fixed at the start. Although the full example is not available, the main point is that SDLT on lease rent depended on whether later rent was fixed, variable, or uncertain, so a review clause could affect the initial tax calculation and any later adjustments.

• Five-year rent reviews could bring a lease within the SDLT rules for variable or uncertain rent.
• The key issue was whether the future rent could be worked out when the lease was granted, not simply whether the lease had a review clause.
• Some review clauses use a clear formula or index, while others depend on later market valuation, turnover, or negotiation.
• It is often necessary to separate periods where rent is fixed from later periods where the rent is uncertain.
• The archived HMRC material was guidance on calculation, not a separate legal rule, and must be read in its historical context.
• For Scottish land transactions from April 2015 onwards, SDLT no longer applies and LBTT should be considered instead.

Scroll down for the full analysis.

SDLT and five-year rent reviews: understanding HMRC’s archived Example 3

This page concerns how Stamp Duty Land Tax was calculated where rent under a lease was variable or uncertain and the lease included five-yearly rent reviews. The official material supplied is only a heading for an archived example, so the detailed worked facts are not available here. Even so, the title tells you the legal issue: how SDLT treated lease rent when the amount payable could change at five-year review points. This matters because SDLT on leases was not charged only on any premium. It could also be charged on the rent, using special rules for uncertain or variable amounts.

What this rule is about

For SDLT on leases, the tax treatment of rent depends on whether the rent is fixed, variable, or uncertain. A five-year rent review can create difficulty because, at the start of the lease, the future rent after each review may not yet be known. The tax system therefore needed rules for working out the charge when the rent over the term could increase, decrease, or depend on future events.

The archived title suggests that Example 3 sat within HMRC guidance on “variable or uncertain rent” and specifically dealt with five-year rent reviews. That points to a practical problem often seen in commercial leases: the lease starts with an initial rent, then the rent is reviewed at five-year intervals, but the reviewed rent is not fixed when the lease is granted.

What the official source says

The source provided does not include the example itself. What it does show is that HMRC treated five-year rent reviews as part of the wider SDLT rules for variable or uncertain rent. It also confirms that the page is archived and relates to SDLT before Scottish transactions moved to Land and Buildings Transaction Tax in April 2015.

From that, the safe summary is limited but clear:

• HMRC regarded leases with five-year rent reviews as potentially falling within the SDLT rules for variable or uncertain rent.
• The example was part of the calculation section, so its purpose was to show how the tax computation worked rather than to create a separate legal rule.
• The page is historical in Scottish terms, because SDLT no longer applies to land transactions in Scotland from April 2015 onward.

What this means in practice

If a lease contains five-year rent reviews and the future rent cannot be stated with certainty when the lease is granted, SDLT may need to be calculated using the rules for uncertain or variable rent rather than by simply adding up fixed rent figures.

In practice, the key question is not just whether there is a review clause, but whether the rent payable after the review is known at the effective date of the transaction. Some review clauses set out a formula that may make the future rent ascertainable. Others leave the amount to a later valuation exercise, market evidence, turnover figures, index movements, or negotiation, which may make the rent variable or uncertain for SDLT purposes.

This affects:

• the amount of SDLT initially reported on the lease;
• whether later adjustments or further returns may be needed under the SDLT lease rules applicable at the time; and
• how conveyancers and tax advisers analyse rent review machinery in the lease itself, not just the headline rent.

How to analyse it

When looking at a lease with five-year rent reviews, a sensible framework is:

• Identify the review mechanism. Is the reviewed rent fixed, formula-based, index-linked, market-based, turnover-based, or still to be agreed?
• Ask what is known at the effective date. Can the rent over the term be calculated from the lease terms alone, or does it depend on future facts or valuation judgement?
• Separate fixed periods from uncertain periods. The rent for the first five years may be certain even if later periods are not.
• Check which SDLT rules applied at the time of the transaction. Lease rent rules changed over time, and archived HMRC guidance needs to be read in its historical context.
• If the property is in Scotland, check the date carefully. SDLT ceased to apply to Scottish land transactions from April 2015, after which LBTT applies instead.

The important practical point is that a five-year review clause does not answer the tax question by itself. You need to understand how the clause works and whether the future rent is ascertainable when the lease is granted.

Example

Illustration: a 15-year commercial lease provides for rent of £50,000 a year for the first five years. At year 5 and year 10, the rent is reviewed to the open market rental value at the review date. At the grant of the lease, the later market rent is not yet known. That raises the issue identified by the archived HMRC heading: the lease includes five-year rent reviews, and the rent after those reviews may be variable or uncertain for SDLT purposes.

The tax analysis would therefore focus on the SDLT treatment of uncertain future rent, rather than assuming that the whole 15-year rent can be treated as fixed from day one.

Why this can be difficult in practice

The difficult part is often classification. A rent review clause may look routine, but for tax purposes the detail matters. For example:

• A formula may make the rent objectively calculable, even if the number is not yet written into the lease.
• A market rent review may require future valuation evidence and may not be certain at the start.
• Some clauses contain minimum uplifts, caps, collars, or assumptions and disregards that affect whether the future rent can be estimated or treated as uncertain.

Another difficulty is that the source here is only an archived page heading, not the underlying example or legislation. So while the heading clearly identifies the topic, it does not provide enough detail to reconstruct HMRC’s exact worked calculation. Any firm conclusion on a real transaction would need the lease terms and the SDLT rules in force at the relevant time.

Key takeaways

• A five-year rent review can bring a lease within SDLT rules for variable or uncertain rent.
• The crucial issue is whether future rent is ascertainable when the lease is granted, not merely whether a review clause exists.
• This HMRC material is archived and, for Scottish transactions from April 2015 onward, SDLT is no longer the relevant tax.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Example 3: Five-Year Rent Reviews for Stamp Duty Land Tax Calculation

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