Guide on LBTT Returns for Lease Assignation and Tenant Responsibilities

LBTT on the Assignation of a Lease

When a notified lease is assigned to a new tenant, LBTT usually continues under the existing lease rather than starting again. The outgoing tenant normally must file a further LBTT return within 30 days of the assignation, and the incoming tenant then takes over future lease return duties, including three-year reviews based on the original lease date.

• The outgoing tenant must usually file an LBTT return within 30 days of the assignation date, even if nothing has changed since the last return.
• The incoming tenant takes over ongoing LBTT obligations for the lease, such as three-year review returns, termination returns, and returns triggered by later rent changes or linked transactions.
• The three-year review timetable does not restart on assignation; it continues from the original effective date of the lease.
• Any unpaid LBTT already due before assignation remains the outgoing tenant’s debt, but later extra LBTT caused by revised figures may fall on the incoming tenant.
• If the incoming tenant pays a premium for the assignation, a separate LBTT conveyance return may also be needed, with the nil rate band available.
• In some cases where the original lease benefited from certain reliefs that would not apply to the new tenant, the assignation is treated as the grant of a new lease for the remaining term.

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LBTT on assignation of a lease: who files, when, and what changes after the transfer

This page explains what happens for Land and Buildings Transaction Tax when a lease that has already been notified is later assigned to a new tenant. The rule matters because an assignation does not simply end the old tenant’s LBTT obligations and start a fresh lease cycle for the new tenant. Instead, the outgoing tenant usually has to file a further return at the point of assignation, and the incoming tenant then takes over the ongoing lease-return obligations for the remainder of the lease.

What this rule is about

LBTT has special rules for leases. A lease can trigger not just an initial return, but also later returns, for example on a three-year review, on termination, or when rent figures become certain.

If the tenant changes during the life of the lease, Revenue Scotland treats that change as important for LBTT. The key question is whether the lease is simply being assigned, so that the new tenant steps into the old tenant’s position, or whether the assignation is treated instead as the grant of a new lease because an earlier relief no longer applies.

The answer affects:

• who must file the next return,
• whether the original three-year review cycle continues,
• whether any premium paid for the assignation needs its own return, and
• whether the transaction is treated as a continuation of the existing lease or as a new lease for LBTT purposes.

What the official source says

Where a notifiable lease has already been notified and is later assigned, the assignor, meaning the outgoing tenant, must file a further LBTT return within 30 days beginning with the day after the assignation. The assignation date is the relevant date for that return.

That return must reassess the tax chargeable by taking account of any changes to the lease since the last return. A return is still required even if nothing has changed since the last return.

After the assignation, the assignee, meaning the incoming tenant, takes over the assignor’s LBTT obligations for the lease. This includes later returns required because:

• a contingency ends or consideration becomes known,
• a later linked transaction affects the position,
• a three-year review date arrives,
• the lease is later assigned again or terminated,
• a fixed-term lease continues after the end of the fixed term,
• the lease is for an indefinite term, or
• a variation to rent or term makes the transaction notifiable.

The three-year review cycle does not restart on assignation. It continues by reference to the effective date of the original lease.

The assignor remains liable for LBTT relating to the period before assignation. The assignee is liable for LBTT relating to the period after assignation. If tax for the pre-assignation period was already due but unpaid at the time of assignation, that debt stays with the outgoing tenant.

However, if extra LBTT later arises because rents for the pre-assignation period turn out to have changed, and that only becomes apparent after assignation, the guidance says the new tenant is liable for that additional LBTT and it would appear on the three-year review return.

If the incoming tenant pays a premium for the assignation, that may itself require a separate LBTT conveyance return if the premium makes the acquisition notifiable. The nil rate band is available for that return.

There is a separate rule where the original grant of the lease benefited from certain reliefs and, on assignation to a different tenant, none of those reliefs would apply. In that situation, the assignation is treated as the grant of a new lease by the assignor for the remaining term, on the terms agreed with the assignee. The reliefs listed in the guidance are:

• sale and leaseback relief,
• alternative finance investment bond relief,
• group relief,
• reconstruction relief,
• acquisition relief,
• charities relief, and
• public bodies relief.

The guidance also says this deemed-new-lease rule does not apply where group relief, reconstruction relief, acquisition relief or charities relief had already been withdrawn because of a disqualifying event before the effective date of the assignation.

What this means in practice

The practical starting point is that an assignation of a notified lease usually creates two separate LBTT consequences.

• The outgoing tenant must file an assignation return for the lease itself.
• The incoming tenant may also need to file a separate conveyance return if it pays a premium for taking the assignation.

Those are different returns for different chargeable events.

The outgoing tenant’s assignation return is not a fresh tax calculation for a brand-new lease. It is an updated lease return that brings the LBTT position up to date as at the assignation date, using the original lease framework and reflecting changes since the last return.

The incoming tenant does not get a new three-year timetable. If the original lease effective date was, for example, 1 November 2020, then the review dates remain tied to that date even if the lease is assigned in 2022 or 2024.

This catches people out. A tenant who has only just taken over a lease may still have to file a three-year review return quite soon after completion because the clock runs from the original lease, not from the assignation.

The guidance also draws an important distinction between liability for old tax debts and liability for later recalculations. If LBTT was already due before assignation and simply was not paid, that remains the outgoing tenant’s debt. But if later information changes the LBTT position, for example because rent figures for an earlier period were only estimates and are later revised, the incoming tenant may be the one who has to account for the extra LBTT in a later return.

This is why the parties should make sure, before assignation, that the lease history is understood and previous returns are up to date.

How to analyse it

A sensible way to analyse an assignation is to work through these questions.

• Was the original lease a notifiable lease?
• Has the lease already been notified to Revenue Scotland?
• Is this a full assignation or only a partial assignation?
• Have rent, term, or other relevant lease figures changed since the last LBTT return?
• What is the assignation date? That is the relevant date for the assignor’s return.
• Is any premium being paid by the incoming tenant for the assignation, and if so does that trigger a separate conveyance return?
• Does the original lease involve reliefs that could cause the assignation to be treated as the grant of a new lease?
• Are there any linked leases, and if so do they stop being linked after assignation because the assignee is unconnected?
• Who will be responsible for the next three-year review return, and when is it due by reference to the original effective date?

For partial assignations, the analysis becomes more technical. Revenue Scotland’s guidance treats the lease as effectively split from the point of assignation for future review purposes. The assignor keeps the retained part and the assignee takes over the assigned part, but the review cycle still runs from the original lease date. Future NPV comparisons are then made separately by reference to the rent for each part.

The guidance also says that where a premium was paid on the original grant, that premium and the tax on it do not need to be included in the partial assignation return. Revenue Scotland indicates that manual intervention may be needed so that its records correctly reflect the split lease, and the assignor should contact Revenue Scotland to explain the transaction.

Example

Illustration: A 10-year lease began on 15 September 2016 and was notified at that time. On 10 September 2018 the tenant assigns the lease to a new tenant.

The outgoing tenant must file an assignation return within 30 days of the assignation date. That return must update the LBTT position for the lease, taking account of any changes since the last return. The effective date of the lease remains 15 September 2016.

The incoming tenant then takes over the ongoing lease obligations. The first three-year review after assignation is still tied to 15 September 2019, because the review cycle runs from the original lease effective date.

If the incoming tenant also pays a premium for the assignation, that payment may require its own LBTT conveyance return. So one assignation can produce an outgoing-tenant lease return and an incoming-tenant conveyance return at the same time.

Why this can be difficult in practice

Several points are easy to misunderstand.

First, assignation does not usually reset the lease for LBTT purposes. The original effective date continues to matter. That can produce review-return deadlines sooner than the incoming tenant expects.

Second, there is a difference between an unpaid historic debt and a later recalculation. The guidance says old unpaid LBTT remains the outgoing tenant’s responsibility, but later additional LBTT caused by changes in rents for the pre-assignation period may fall on the incoming tenant because that tenant now carries the filing obligations. That allocation can be commercially significant.

Third, partial assignations are more complex than full assignations. Future returns need to reflect only the retained part or the assigned part, but still by reference to the original lease history. The guidance’s worked example shows that the tax-paid figure may need to be overridden to prevent the system from generating an incorrect repayment.

Fourth, some assignations are not treated as ordinary assignations at all. If the original lease obtained one of the listed reliefs and that relief would not apply to the new tenant, the law can treat the assignation as the grant of a new lease for the remaining term. That changes the analysis materially. It is therefore important to check the original filing position and any relief claimed on grant.

Fifth, partnership cases can be unusual. The guidance says that where Schedule 17 applies and the sum of lower proportions reduces chargeable consideration to nil, an assignation return is not required for the lease transaction because the original lease transaction would not have been notifiable. The same section also warns that artificial partnership arrangements may engage the Scottish general anti-avoidance rule.

Finally, the guidance treats a bequest of a lease by operation of law as an assignation for the lease-return rules once the tenancy interest is transferred to the beneficiary. But where the beneficiary gives no consideration, the passing of the lease is said to fall within the exemption in Schedule 1 paragraph 6. So the change in tenant still matters for lease administration even though the transfer may be exempt.

Key takeaways

• On assignation of a notified lease, the outgoing tenant usually must file a further LBTT return within 30 days, even if nothing has changed since the last return.
• The incoming tenant takes over the ongoing lease obligations, including future three-year review returns, and the review cycle continues from the original lease effective date.
• An assignation may also trigger a separate conveyance return for any premium paid, and in some relief cases the assignation is treated instead as the grant of a new lease.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Guide on LBTT Returns for Lease Assignation and Tenant Responsibilities

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