Assignation of Lease: LBTT Return Requirements for Tenants and Assignees

LBTT on Assigning a Scottish Lease

When a notifiable Scottish lease is assigned to a new tenant, the lease usually continues for LBTT purposes rather than starting again. The outgoing tenant normally has to file a further LBTT return within 30 days of the assignation, and the incoming tenant usually takes over future LBTT filing duties for that lease.

• The outgoing tenant must usually file a further LBTT return within 30 days of the assignation date, even if nothing has changed since the last return.
• The incoming tenant takes over future LBTT obligations for the lease, including later review returns, rent changes, termination returns, and other further lease returns.
• The three-year review timetable does not restart on assignation; it still runs from the original lease effective date.
• If a premium is paid for the assignation, this may trigger a separate LBTT conveyance return in addition to the lease assignation return.
• Special care is needed for partial assignations, linked leases, certain partnership cases, and leases that originally claimed relief, because these can change the normal LBTT treatment.
• In some relief cases, if the new tenant would not qualify for the original relief, the assignation may be 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 happens next

This page explains what happens for Land and Buildings Transaction Tax when a notifiable Scottish lease is assigned to a new tenant. The key point is that assignation does not usually end the lease for LBTT purposes. Instead, the outgoing tenant may have to file a further return at the point of assignation, and the incoming tenant usually takes over the ongoing LBTT obligations for that same lease.

What this rule is about

LBTT on leases is not dealt with only once at the start. A lease can trigger further returns later, for example on a three-year review, on termination, or when rent changes. Assignation creates a change in who holds the tenant’s rights, so the legislation needs to say:

• whether a return is required when the lease is assigned,
• who is responsible for filing it,
• who becomes responsible for future lease returns, and
• whether the assignation is treated in the normal way or as if a new lease had been granted.

The source material deals with all of those points, including full assignations, partial assignations, premiums paid for the assignation, and some special cases such as leases originally relieved from tax.

What the official source says

Where a lease was originally notifiable 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 LBTT position to reflect any changes to the lease since the last return. A return is still required even if nothing has changed since the last return.

After assignation, the assignee, meaning the new tenant, takes over the previous tenant’s LBTT responsibilities for that lease. This includes future returns that may arise because:

• a contingency ends or consideration becomes certain,
• there is a later linked transaction,
• a three-year review date is reached,
• the lease is later assigned or terminated,
• a fixed-term lease continues after the fixed term,
• the lease is for an indefinite term, or
• a variation to rent or term makes the transaction notifiable.

The important timing point is that the review cycle does not restart on assignation. The next three-yearly review is still measured from the effective date of the original lease, not from the date of assignation.

The source also says that where certain reliefs were claimed on the original grant of the lease, and the assignee would not qualify for that relief, the assignation is treated as the grant of a new lease for the remaining term on the assignee’s terms. This can apply where the original grant benefited from:

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

There is an exception where group relief, reconstruction relief, acquisition relief or charities relief had already been withdrawn because a disqualifying event happened before the assignation took effect. In that situation, the special “treated as a new lease” rule does not apply.

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.

What this means in practice

In the ordinary case, a lease assignation creates two LBTT consequences.

• First, the outgoing tenant files an assignation return for the lease.
• Second, the incoming tenant steps into the outgoing tenant’s place for future lease-related LBTT returns.

This does not mean the lease starts again. For LBTT lease administration, the existing history of the lease continues. The new tenant inherits that history.

So if a lease began on 1 June 2022 and is assigned on 1 May 2024, the next three-year review still falls on the third anniversary of 1 June 2022. It is not pushed back to 2027 simply because the tenant changed.

The outgoing tenant remains responsible for LBTT relating to the period before assignation. If tax was already due for that earlier period and remains unpaid, that remains the outgoing tenant’s debt.

But the source material also makes clear that the new tenant can become liable for additional LBTT that emerges after assignation, even where it relates to changes in rent for the pre-assignation period. In practice, this matters where the true rent position only becomes clear later, for example after a review or reconciliation. Revenue Scotland indicates that such additional amounts would show up on the later three-year review return.

This is why assignations of leases should not be treated as only a conveyancing exercise. The parties need to understand the lease’s LBTT history, whether all returns have been filed, whether estimates were used, whether any rent reviews are outstanding, and whether any premium is being paid for the assignation.

How to analyse it

A sensible way to analyse an assigned lease is to work through the following questions.

• Was the original lease notifiable? If not, the assignation return rules may not apply in the ordinary way.
• Has the lease been fully assigned or only partially assigned?
• What is the assignation date? That date drives the 30-day filing deadline and is the relevant date for the assignation return.
• Since the last LBTT return, have rent, term, contingencies, linked transactions or other relevant facts changed?
• Was any relief claimed on the original grant of the lease? If so, would the assignee qualify for the same relief?
• Has any relevant relief already been withdrawn because of a disqualifying event before assignation?
• Is any premium being paid for the assignation itself? If so, does that trigger a separate conveyance return?
• What future lease-return obligations will pass to the assignee, and when is the next three-year review due?

For partial assignations, the analysis becomes more detailed. The source treats the lease as effectively split for LBTT return purposes from the point of partial assignation. The original tenant keeps responsibility for the retained part. The new tenant becomes responsible for the assigned part. Each part continues on the original lease timeline rather than starting a fresh review cycle.

Where leases were linked before assignation, the source says that assignation of one linked lease to an unconnected party breaks the linkage for the post-assignation period. But the pre-assignation period still takes the linked lease into account.

Example

Illustration: a tenant takes a notifiable 10-year non-residential lease. Two years later, the tenant assigns the lease to a new tenant.

• The outgoing tenant must file a further LBTT return within 30 days of the assignation date.
• That return must reflect any changes to the lease since the last return, even if the revised calculation still produces no extra tax.
• The incoming tenant then takes over future LBTT lease obligations.
• The next three-year review is still due on the third anniversary of the original effective date, not three years after the assignation.

If the incoming tenant also pays a premium for the assignation, that premium may require a separate LBTT conveyance return. This is distinct from the assignation return filed by the outgoing tenant.

Partial assignation: the position is more complex

A partial assignation is not the same as a sublease. In a sublease, the existing tenant becomes landlord under a new lease to the subtenant. In a partial assignation, the original landlord stays the landlord, the assignor keeps part of the original lease, and the assignee takes over the tenant’s rights in the part assigned.

The source says the assignor must file a further LBTT return within 30 days of the partial assignation. That return must assess LBTT for the lease as a whole, reflecting changes since the latest return for the part assigned.

After the partial assignation:

• the assigned part continues under the original lease terms, as amended by the partial assignation terms,
• the assignee becomes responsible for future LBTT obligations for that part, and
• the retained part continues with the assignor, who remains responsible for future returns for that part.

The three-year review cycle still follows the original lease effective date for both parts.

The source also notes a practical system point. If a premium was paid on the original grant of the lease, that premium and the tax on it should not be included on the assignation return for a partial assignation, and Revenue Scotland may need to intervene manually so its records correctly reflect the split lease.

Special cases

There are several special situations mentioned in the source.

First, if the original lease was exempt because a full relief was claimed on the first return, and the assignee cannot claim that relief, the ordinary assignation treatment does not apply. Instead, the assignation is treated as the grant of a new lease, subject to the exception for certain reliefs already withdrawn after a disqualifying event.

Second, in some partnership cases under Schedule 17, an assignation return may not be required where the lower proportion rules reduce chargeable consideration to nil and the original lease transaction would not have been notifiable.

Third, a lease passing by bequest can be treated as an assignation for the lease further return rules. But where the beneficiary gives no consideration, the passing of the lease under a will or on intestacy is treated as an exempt transaction under Schedule 1, paragraph 6. The source also notes that whether a bequest is effective depends on whether the lease is assignable, although executors may have statutory power to transfer the interest despite a prohibition on assignation.

Why this can be difficult in practice

The source reveals several areas where the legal position is workable in principle but awkward in practice.

One difficulty is that liability and filing responsibility do not always line up neatly with the period to which the tax economically relates. The outgoing tenant remains liable for unpaid LBTT already due for the pre-assignation period. But if additional LBTT only emerges later because earlier rents turn out differently from what was expected, the incoming tenant may end up accounting for that on a later return.

Another difficulty is that assignation does not wipe the slate clean. The incoming tenant inherits the lease’s LBTT history, including earlier returns and assumptions. If those earlier returns were incomplete or based on estimates, the assignee may need enough information from the assignor to deal properly with future reviews.

Partial assignations are particularly fact-sensitive. The lease must effectively be tracked in separate parts from the assignation date, while still preserving the original effective date and review cycle. The source’s example shows that figures such as “tax paid” may need to be overridden to stop the system generating a repayment that is not actually due.

Relief cases also need care. The question is not simply whether relief was once claimed, but whether the assignation falls into the special rule that treats the transaction as a new lease, and whether any exception applies because the relief had already been withdrawn before assignation.

Finally, where there is a premium for the assignation, it is easy to focus only on the lease return and overlook the possible separate conveyance return for that premium.

Key takeaways

• On assignment of a notifiable 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 usually takes over the lease’s ongoing LBTT obligations, but the three-year review cycle continues from the original effective date.
• Check carefully for premiums, partial assignations, linked leases, partnership rules, and leases that originally benefited from relief, because these can change the LBTT treatment materially.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Assignation of Lease: LBTT Return Requirements for Tenants and Assignees

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