Example 5: Calculating SDLT on Variable or Uncertain Rent

Archived HMRC guidance on SDLT and variable or uncertain lease rent in Scotland

This archived HMRC page shows that SDLT guidance once included an example on leases with variable or uncertain rent, but the actual example text is missing. Its main value is to confirm that SDLT no longer applies to Scottish land transactions from April 2015, when LBTT took over instead.

• The source relates to SDLT on lease rent that is not fixed from the start, such as rent linked to turnover, inflation, or review clauses.
• It does not include the worked example, calculation method, or detailed legal rules, so it cannot be relied on by itself.
• For leases, SDLT was partly based on the net present value of the rent, which makes uncertain rent a technical issue.
• The key first step is to check the jurisdiction and date of the transaction to confirm whether SDLT, LBTT, or another land tax applies.
• For Scottish land transactions from April 2015 onwards, SDLT guidance is not the operative guidance; LBTT rules must be used instead.

Scroll down for the full analysis.

SDLT on variable or uncertain rent: archived example material for Scotland transactions

This page relates to an archived HMRC SDLT manual entry about variable or uncertain rent. The source itself is extremely limited and contains no substantive example text. Its main practical value is to show that the page formed part of HMRC’s guidance on how SDLT was calculated where rent under a lease was not fixed, and that the page is archived because SDLT no longer applies to land transactions in Scotland from April 2015.

What this rule is about

Under SDLT, the tax treatment of lease rent can become more complicated where the rent is not fixed from the outset. That can happen if the rent changes by reference to turnover, inflation, later review, or some other uncertain mechanism. In those cases, SDLT does not simply depend on a single known rent figure at the grant of the lease.

The title of the source shows that it was one of HMRC’s worked examples dealing with “variable or uncertain rent”. That topic matters because SDLT on leases is based in part on the net present value of the rent payable over the term. If the rent is uncertain, the taxpayer still needs a basis for calculating the SDLT return and may later need to revisit the position if the actual rent turns out differently from what was assumed.

What the official source says

The supplied source does not contain the actual example. It only identifies the page as “SDLTM18590 – Calculation of stamp duty land tax: Rent: Variable or uncertain rent: Example 5” and states that the page is archived. 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.

So, from the material provided, two points can safely be taken:

• the page belonged to HMRC guidance on calculating SDLT where rent is variable or uncertain; and
• for Scottish land transactions from April 2015 onwards, the relevant tax is not SDLT but LBTT.

The source provided does not set out the example itself, any calculation method, or any detailed legal rule.

What this means in practice

If you are dealing with a lease of land in England or Northern Ireland, the question of variable or uncertain rent may still matter for SDLT. The practical issue is usually how to complete the SDLT calculation when the lease does not provide a single fixed rent figure for the whole term.

If you are dealing with Scottish land, the archived notice is important because it tells you not to rely on SDLT guidance for post-April 2015 Scottish transactions. The equivalent issue would need to be considered under LBTT instead, using Scottish rules and guidance.

Because the actual example text is missing, this source on its own cannot tell a reader how HMRC expected the rent to be estimated, when returns might need amendment, or how later rent changes were meant to be treated. Those points would need to come from the underlying legislation or fuller HMRC material on uncertain rent.

How to analyse it

Where a lease involves rent that is not fully fixed at the start, a sensible analysis usually begins with these questions:

• Which tax applies: SDLT, LBTT, or LTT?
• Where is the land located?
• When was the transaction effective?
• Is the rent fixed, variable, contingent, reviewable, or uncertain in some other way?
• Does the uncertainty affect the amount payable from the start, or only future periods after review?
• What does the governing legislation require to be assumed at the filing stage?
• Is there any later event that requires a further return, adjustment, or recalculation?

For this specific archived page, the most important threshold question is jurisdiction and date. If the land is in Scotland and the transaction is from April 2015 onwards, SDLT manual examples are no longer the operative guidance.

Example

Illustration: a tenant takes a lease of commercial premises in Scotland in 2018. The lease rent includes a base rent plus an amount linked to turnover. A reader finds this archived SDLT page and assumes it governs the tax treatment. That would be the wrong starting point. The archived notice makes clear that SDLT no longer applies to Scottish land transactions from April 2015, so the transaction must instead be analysed under LBTT.

Why this can be difficult in practice

There are two separate difficulties here.

First, variable or uncertain rent is inherently technical. Tax on leases often depends on assumptions made before the full rent profile is known. That creates scope for later adjustments and for disagreement about what was uncertain, what was merely variable under a formula, and what had to be taken into account at the outset.

Second, archived manual pages can mislead if used without checking whether they still apply. Property tax on land transactions is jurisdiction-specific. SDLT continues for England and Northern Ireland, but Scotland moved to LBTT. A page may therefore be historically informative without being legally operative for the transaction in hand.

In this case, the source is especially difficult to use because the substantive example is not included in the supplied content. That means no reliable conclusion can be drawn from this page alone about the detailed SDLT treatment of uncertain rent.

Key takeaways

• This source confirms only that HMRC had an example on SDLT and variable or uncertain rent, but the example text itself is not provided.
• The page is archived and expressly notes that SDLT no longer applies to Scottish land transactions from April 2015; LBTT applies instead.
• For any real transaction involving uncertain rent, you need the full operative rules for the correct tax and jurisdiction, not this archived page alone.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Example 5: Calculating SDLT on Variable or Uncertain Rent

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