Variation of Leases: Increasing Rent in First Five Years Example

Increasing lease rent in the first five years and SDLT

If the rent under a lease is formally increased within the first five years, this can change the Stamp Duty Land Tax (SDLT) position. That is because SDLT on leases can apply to rent as well as any premium, and an early rent increase may mean the lease needs to be reviewed again for tax purposes.

• SDLT on leases is based not only on any premium paid, but also on the rent due over the term.
• A rent increase in the first five years can be treated as a variation of the lease and may trigger a fresh SDLT calculation.
• The key issue is whether the higher rent was already built into the original lease terms or was introduced later by a legal change to the lease.
• You should check the legal documents, the date the increase takes effect, and whether the original SDLT return already reflected the higher rent.
• For property in Scotland from April 2015, SDLT no longer applies; Land and Buildings Transaction Tax (LBTT) must be considered instead.
• HMRC guidance is helpful, but the final tax result depends on the legislation and the actual facts of the lease variation.

Scroll down for the full analysis.

Increasing rent in the first five years of a lease: why a lease variation can trigger SDLT

This page explains a narrow but important SDLT point: what can happen if the rent under a lease is increased during the first five years of the term. In some cases, changing the rent is treated as a variation of the lease that can affect the SDLT position. This matters because SDLT on rents is based on the rent payable over time, and an early increase can change the tax calculation.

What this rule is about

SDLT has special rules for leases. Tax is not charged only on any premium paid for the lease. It can also be charged on the rental element.

Where the rent under a lease changes, the tax position may also change. A particular issue arises if the rent is increased within the first five years of the lease. The legislation and HMRC guidance treat this period differently from later years because the rental calculation for SDLT is especially sensitive to what happens early in the term.

The source material here is an example page in HMRC’s SDLT manual dealing with a variation of a lease where the rent is increased in the first five years.

What the official source says

The source indicates that an increase in rent during the first five years of a lease is dealt with under the SDLT rules on variation of leases. Although the page provided is only a heading and does not include the worked example itself, its subject shows the point HMRC is addressing: an early rent increase can require the lease to be looked at again for SDLT purposes.

The archived notice is also important. It states that, from April 2015, SDLT no longer applies to land transactions in Scotland. Transactions in Scotland from that point are instead within Land and Buildings Transaction Tax.

What this means in practice

If a lease is varied so that the rent goes up in the first five years, you should not assume that the original SDLT filing and payment remain final. An early rent increase may alter the amount of SDLT due on the rental element of the lease.

In practical terms, the key question is whether the change is simply part of the original rent pattern already reflected in the lease, or whether it is a later variation that changes the legal obligations under the lease. If it is a true variation, that may bring SDLT consequences.

This matters most to:

• tenants who agree revised rent terms shortly after the lease starts,
• landlords and tenants renegotiating commercial leases, and
• conveyancers and tax advisers checking whether a further return or recalculation is needed.

If the property is in Scotland, the SDLT manual page is only of historical relevance for transactions before SDLT ceased to apply there. For later Scottish transactions, the equivalent question must be considered under LBTT, not SDLT.

How to analyse it

A sensible way to approach the issue is:

• Identify the jurisdiction. If the transaction is in Scotland and took place from April 2015, SDLT is not the relevant tax.
• Check whether there is an actual variation of the lease. You need to look at the legal documents, not just the commercial understanding between the parties.
• Establish when the rent increase takes effect. The first five years are specifically important under the SDLT lease rules.
• Consider whether the original SDLT treatment already took the increased rent into account. If it did not, the increase may affect the tax position.
• Work out whether the variation changes the rent payable under the lease in a way that requires a revised SDLT analysis.

The legal substance matters more than labels. Calling something a review, side letter, concession, or amendment does not decide the tax result by itself. The real question is whether the tenant’s rent obligation under the lease has been changed.

Example

Illustration: a tenant takes a commercial lease at an initial annual rent. Two years later, the landlord and tenant sign a formal deed varying the lease so that the rent increases from that point onward. Because the increase happens within the first five years and results from a legal variation of the lease, the SDLT position may need to be revisited.

That does not by itself tell you the exact amount of tax due. The answer depends on the detailed lease terms and the SDLT rules applying to rent. But the important practical point is that an early increase is not something to ignore.

Why this can be difficult in practice

The source material supplied is only the title of an HMRC example page, not the example text itself. That means it identifies the issue, but does not provide the detailed worked facts or HMRC’s full reasoning on that page.

Even where the general rule is clear, application can still be fact-sensitive. Difficulties often arise over:

• whether the change is a true lease variation or merely the operation of the original lease terms,
• the effective date of the increased rent,
• whether the increase falls within the period that matters for the SDLT recalculation rules, and
• whether the transaction is actually within SDLT at all, given the separate regimes for Scotland and Wales.

It is also important not to treat HMRC manual wording as if it were the legislation itself. The manual shows HMRC’s view and can be useful, but the legal result depends on the legislation and the actual facts.

Key takeaways

• An increase in rent during the first five years of a lease can affect SDLT if it results from a variation of the lease.
• You need to examine the legal documents and timing carefully, not just the commercial agreement between landlord and tenant.
• For Scottish land transactions from April 2015, SDLT no longer applies and LBTT must be considered instead.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Variation of Leases: Increasing Rent in First Five Years Example

View all HMRC SDLT Guidance Pages Here