Guidance on LBTT transitional rules for pre-implementation leases in Scotland.

LBTT transitional rules for Scottish leases granted before 1 April 2015

These rules explain when an older Scottish lease, originally taxed under Stamp Duty or SDLT, may partly come into the LBTT system after 1 April 2015. The aim is to avoid taxing the same lease twice, while making sure later changes such as assignations, rent increases, term extensions or added premises are taxed where the rules say they should be.

• Older leases do not usually move fully into LBTT; normally only the part created by a later change is treated as a new LBTT lease.
• A post-1 April 2015 rent increase can trigger LBTT if it happens within the first five years of the original lease, and LBTT generally applies only to the extra rent.
• An extension of the lease term or an addition of extra premises after 1 April 2015 can create a new LBTT lease covering only the extension period or extra area.
• The effective date for LBTT is usually the date the variation or agreement is signed, which can mean filing and three-year review returns start before the new lease period actually begins.
• A first assignation after 1 April 2015 of a lease that was originally exempt under certain reliefs may be treated as the grant of a new lease if the new tenant cannot claim the relief.
• Where a new lease overlaps with an older lease already taxed under SDLT, the overlap rent is generally left out of the LBTT charge to prevent double taxation.

Scroll down for the full analysis.

LBTT transitional rules for Scottish leases granted before 1 April 2015

This page explains how Land and Buildings Transaction Tax (LBTT) can apply to Scottish leases that were originally granted before LBTT started on 1 April 2015. The main purpose of these transitional rules is to stop the same lease being taxed twice, while also making sure that changes to older leases do not escape tax altogether.

What this rule is about

LBTT replaced SDLT in Scotland from 1 April 2015. That created an obvious problem for leases already in existence at that date. Many leases had already been taxed under SDLT, or even under the older Stamp Duty regime. If one of those leases was later assigned, varied or extended, there needed to be rules deciding whether SDLT, LBTT, or neither tax applied.

The transitional provisions in the Land and Buildings Transaction Tax (Transitional Provisions) (Scotland) Order 2014 deal with that handover. In broad terms, they aim to:

• prevent double taxation under both SDLT and LBTT,
• bring certain post-1 April 2015 changes into the LBTT regime, and
• treat some post-implementation events as if they were the grant of a new lease for LBTT purposes.

This guidance is specifically about pre-implementation leases, meaning leases granted before 1 April 2015.

What the official source says

The official material identifies four main situations where special transitional rules matter for older leases.

First, there are overlapping leases. If a new lease is granted after 1 April 2015 but overlaps with an older lease that had already been taken into account for SDLT, the overlap rules can still apply. The rent for the overlap period is effectively left with the old lease, so it is not taxed again under the new lease.

Second, an assignation of an older lease can sometimes be treated as the grant of a new lease for LBTT. This applies where:

• the lease was originally granted before 1 April 2015,
• it had been exempt from SDLT or Stamp Duty because one of the specified reliefs was claimed, and
• after 1 April 2015 there is a first assignation to a tenant who cannot use one of those reliefs.

In that situation, the assignation is treated as a new lease for the remaining term, on the assignee’s terms.

Third, a variation of a pre-1 April 2015 lease can be treated as a new LBTT lease if, after 1 April 2015, the rent is increased within the first five years of the original lease grant. That is Article 12 of the transitional order.

Fourth, an extension of a pre-1 April 2015 lease can be treated as a new LBTT lease if, after 1 April 2015, the term is extended or the premises are extended. That is Article 13.

The guidance also makes several important technical points:

• Only the part of the arrangement created by the variation or extension enters the LBTT regime. The original SDLT lease does not.
• The effective date is usually the date the variation is signed, or in some cases the date missives are concluded.
• For rent, LBTT applies only to the additional rent attributable to the new LBTT lease.
• The term of the deemed new LBTT lease depends on what changed. For an extension of term, it is the extension period. For an increase in rent within the first five years, it is the period over which the increased rent applies.
• Three-year lease review returns run from the LBTT effective date, even if the extended term itself does not begin until later.

What this means in practice

The practical effect is that an older Scottish lease can partly remain in the old tax world and partly enter the LBTT world.

That is the key idea. A post-1 April 2015 change does not usually pull the whole historic lease into LBTT. Instead, the new or changed element is treated as a separate LBTT lease.

For example:

• if rent is increased within the first five years of the original lease, LBTT looks at the extra rent, not the whole rent history of the lease;
• if the term is extended, LBTT generally looks at the rent payable during the extension period;
• if extra premises are added, LBTT looks at the rent attributable to those extra premises; and
• if both rent and term are changed in a way that engages both Article 12 and Article 13, there may be two deemed leases, which are then brought together under the successive linked lease rules.

This also affects compliance. A lease that originally sat under SDLT can trigger a fresh LBTT filing obligation after 1 April 2015. Once that happens, the LBTT lease review regime can apply for the rest of the lease contract, including review returns every three years and a termination return at the end of the LBTT lease.

The guidance also highlights a point that can surprise landlords and tenants: the effective date and the start date of the LBTT lease may be different. A variation may be signed now, creating an LBTT filing obligation now, even though the extended lease term does not begin until years later.

How to analyse it

A sensible way to analyse a pre-1 April 2015 Scottish lease is to work through these questions.

1. Was the original lease granted before 1 April 2015?

If not, these transitional rules are not the starting point.

2. What happened after 1 April 2015?

• Was there an assignation?
• Was the rent increased?
• Was the term extended?
• Were extra premises added?
• Was there a replacement lease creating an overlap period?

3. If there was a rent increase, when was the original lease granted?

Article 12 only applies if the increase happens within the first five years of the original grant. If the increase happens after that five-year window, that increase alone does not bring the lease into LBTT under Article 12.

4. If there was an extension, what exactly was extended?

• If the term was extended, the new LBTT lease usually covers the extension period only.
• If the premises were extended, the new LBTT lease usually covers the extra area, and the effective date may depend on when possession of that extra area is taken.

5. What rent belongs to the new LBTT lease?

The source material is clear that the original SDLT lease stays outside LBTT. So the calculation should focus on the rent attributable to the variation or extension:

• extra rent above the previous passing rent for an Article 12 case,
• full rent for the extension period in an Article 13 term-extension case,
• full rent for additional premises in an Article 13 premises-extension case.

6. Are there two deemed leases that need to be linked?

If the lease is both extended and the rent is increased within the first five years, the guidance says this is likely to create two deemed leases. The successive linked lease rules then treat them as a single lease for LBTT purposes.

7. Is this an assignation of a formerly exempt lease?

If the original lease was exempt because of one of the listed reliefs, check whether this is the first post-1 April 2015 assignation where no relief is available. If it is, the assignation may be treated as the grant of a new lease.

8. Is there an overlap period with an older lease already taxed under SDLT?

If so, rent for that overlap period may be left out of the new LBTT lease calculation, to avoid double counting.

9. What is the effective date, and when do review returns start?

The effective date is usually the date of the variation. That date drives the filing deadline and the timetable for three-year review returns, even if the LBTT lease term starts later.

10. Is part of the lease history under old Stamp Duty rather than SDLT?

Revenue Scotland’s view is that certain transitional rules can still apply to Scottish leases granted before SDLT existed, using a purposive interpretation. In particular, extensions and some other events that would have been brought into SDLT had SDLT still applied can fall within LBTT after 1 April 2015.

Example

Illustration: A lease was granted on 1 August 2013 for 10 years at £100,000 a year, and SDLT was dealt with at that time. On 1 August 2015, the parties sign a minute of variation extending the lease by five more years.

Under the transitional rules, that extension is treated as a new LBTT lease. The effective date is 1 August 2015, so an LBTT return is needed by the normal filing deadline from that date. But the term of the new LBTT lease does not start on 1 August 2015. It starts only when the extended period starts, on 1 August 2023. The tax calculation is based on the rent payable during the five-year extension period, not on the whole original lease term.

The lease will also enter the LBTT lease review cycle from the effective date, so review returns may fall due before the extension period even begins.

Why this can be difficult in practice

The main difficulty is that these rules split one commercial lease into different tax components.

A lease can have:

• an original historic lease taxed under SDLT or Stamp Duty, and
• a deemed new lease taxed under LBTT.

That can make it hard to identify:

• which rent belongs to which regime,
• when the LBTT lease term actually starts,
• whether a rent increase falls inside or outside the first five years,
• whether a variation creates one deemed lease or two, and
• how to apportion later rent changes between the SDLT part and the LBTT part.

Apportionment can be especially fact-sensitive where additional premises are added and rent later changes across the whole holding. The guidance says any apportionment should be made on a just and reasonable basis. That is a legal standard, not a fixed formula.

Another difficulty is the treatment of older Stamp Duty leases. The legislation refers to leases to which Schedule 17A FA 2003 applies, but Revenue Scotland says this should be read purposively so that certain pre-SDLT Scottish leases are also covered. That is an interpretative position explained in Revenue Scotland guidance and technical material. In practice, it matters because some leases granted before 1 December 2003 may still come within the transitional LBTT rules if they are later extended, assigned or otherwise changed in a relevant way.

There is also a procedural point in the source material: if an LBTT lease return is being submitted and the effective date is before 1 April 2015, Revenue Scotland says the return should be filed using 1 April 2015 as the date and followed by a secure message giving the correct effective date so Revenue Scotland can amend it.

Key takeaways

• A pre-1 April 2015 Scottish lease does not usually move wholesale into LBTT; only certain later changes are treated as new LBTT leases.
• Rent increases within the first five years, and extensions of term or premises, are the main events that can trigger LBTT under the transitional rules.
• The effective date for LBTT compliance may be earlier than the start of the new LBTT lease term, so filing and review obligations can arise before the extended period begins.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Guidance on LBTT transitional rules for pre-implementation leases in Scotland.

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