Stamp Duty Land Tax: Five-Year Rent Reviews and Scottish Tax Changes

SDLT and five-year rent reviews on leases

This archived HMRC guidance highlights how SDLT could apply to lease rent where a five-year rent review means future rent is not fixed when the lease begins. The key issue is whether later rent is already known, can be worked out from the lease, or remains genuinely uncertain, as this affects how the rent is treated for SDLT and whether later adjustments may be needed.

• SDLT on leases can apply to rent as well as any premium, so uncertain future rent can affect the tax calculation.
• A five-year rent review does not automatically mean the rent is uncertain; the answer depends on the exact wording of the lease.
• If future rent is set out clearly or can be calculated from known facts, it may be ascertainable from the start.
• If reviewed rent depends on future market value, valuations, turnover, or other unknown events, it may be treated as variable or uncertain rent.
• The HMRC material provided is only an archived example heading, so it identifies the issue but does not give the full worked calculation.
• For Scottish land transactions from April 2015 onwards, SDLT does not apply and the relevant tax is LBTT instead.

Scroll down for the full analysis.

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

This page concerns how Stamp Duty Land Tax was calculated where rent under a lease was variable or uncertain and was reviewed every five years. The source material is an archived HMRC manual heading for an example page. Although the text supplied does not include the worked example itself, the topic points to a specific SDLT issue: how to deal with lease rent when the amount is not fixed from the outset.

What this rule is about

For SDLT on leases, tax can be charged not only on any premium but also on the rent. Where rent is fixed, the calculation is relatively straightforward. The difficulty arises where the rent can change, or is not known with certainty when the lease is granted.

A five-year rent review is a common example. The lease may set an initial rent, but provide for the rent to be reviewed after five years and again later. At the grant date, the future reviewed rent may not yet be known. SDLT rules had to decide what figure should be used for the tax calculation at that stage.

The source title places this within HMRC’s guidance on “variable or uncertain rent”. That tells the reader that the issue is not simply whether rent changes, but whether the amount payable in later periods is unknown or contingent when the lease starts.

What the official source says

The official material supplied is only the title of an archived HMRC manual page: “SDLTM18540 – Calculation of stamp duty land tax: Rent: Variable or uncertain rent: Five-year rent reviews: Example 1”. It also states that, from April 2015, SDLT no longer applies to land transactions in Scotland, which instead fall within Land and Buildings Transaction Tax.

From that heading, the safe conclusion is limited but still useful:

• the page formed part of HMRC’s SDLT guidance on lease rent,
• it dealt with rent that was variable or uncertain,
• it used a five-year rent review as an example, and
• it is archived because Scottish land transactions moved out of SDLT from April 2015.

The heading does not, by itself, provide the actual numerical example or the detailed method used in that example. So any explanation must stay at the level of the legal issue and its practical significance unless the underlying legislation or fuller guidance is available.

What this means in practice

If a lease contains five-year rent reviews, the SDLT position may depend on whether the future rent is known, ascertainable under the lease terms, or genuinely uncertain at the effective date of the transaction.

This matters because SDLT on rent is based on a tax calculation that requires a value to be attributed to the rent stream. If later rent figures are uncertain, the parties cannot simply ignore them. They need to apply the SDLT rules for uncertain or variable rent.

In practice, a conveyancer or tax adviser would want to identify:

• whether the lease states exact future rents,
• whether the review formula allows the future rent to be calculated from known facts,
• whether the review depends on future events or valuations not yet known, and
• whether later returns or adjustments may be needed once the rent becomes certain.

The archived note about Scotland is also important. For Scottish land transactions from April 2015 onwards, SDLT is not the relevant tax. The equivalent issue would need to be considered under LBTT, not SDLT.

How to analyse it

A sensible way to approach a five-year rent review under SDLT is as follows.

• Start with the date and location of the transaction. If the land is in Scotland and the transaction is from April 2015 onwards, SDLT is not the applicable regime.
• Check whether the transaction is a lease and whether SDLT is charged on rent as well as any premium.
• Read the rent clause carefully. Is the rent fixed for the whole term, fixed in stepped amounts, or subject to review?
• If there is a review, ask whether the reviewed rent is already determinable from the lease terms at the effective date, or whether it depends on future facts that are still unknown.
• If the future rent is uncertain, identify which SDLT rules deal with uncertain or variable rent and whether a later reassessment mechanism applies.
• Keep the documentary basis clear. The treatment depends on the lease wording, not just on what the parties expect the rent to become.

This is one of those areas where the label “rent review” does not answer the tax question by itself. Some reviewed rents are effectively fixed by formula. Others remain genuinely uncertain until the review date or a valuation process is completed.

Example

Illustration: a tenant takes a 15-year lease. The lease sets an initial annual rent for the first five years, then says the rent will be reviewed at year 5 and year 10 by reference to market rental value at those dates.

At the start of the lease, the rent for years 6 to 15 is not yet known. That points to the SDLT issue identified in the source heading: the lease contains future rent that is variable or uncertain because of five-year rent reviews.

The practical tax question is not simply “is there a review?” but “what rent figure should be used for SDLT when the lease is granted, and what happens when the reviewed rent later becomes known?” The archived source title indicates that HMRC had a worked example on exactly that point.

Why this can be difficult in practice

The main difficulty is classification. A lease may say that rent is reviewed every five years, but the legal and tax treatment depends on the detail.

• If the lease specifies exact future rents, there may be no real uncertainty.
• If it uses a formula tied to known figures, the rent may be ascertainable even if it changes over time.
• If it depends on a future market valuation, index figure, turnover figure, or other event not yet known, the rent may be uncertain at the outset.

Another difficulty is that the supplied source is only a manual heading, not the full worked example. A manual can explain HMRC’s view, but the legislation is what governs the legal position. Without the full text, it would be wrong to state a detailed computational method as if it appeared in the source when it has not been provided here.

There is also a regime point. Older SDLT material may still be relevant for historic English and Northern Irish transactions, but not for post-April 2015 Scottish transactions, which fall under LBTT.

Key takeaways

• A five-year rent review can raise SDLT issues if future rent is variable or uncertain when the lease is granted.
• The crucial question is whether future rent is actually known or ascertainable under the lease terms, not just whether the lease uses the words “rent review”.
• The supplied source is an archived HMRC example heading, so it identifies the issue clearly but does not, on its own, provide the full computational detail.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Stamp Duty Land Tax: Five-Year Rent Reviews and Scottish Tax Changes

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