Sub-letting under a commercial lease

Sub-letting under a commercial lease (bail commercial) is a crucial issue for many shopkeepers and entrepreneurs faced with premises that are too large or with temporary economic difficulties. This practice, whereby a commercial tenant lets all or part of its premises to a third party, is subject to a strict legal framework that landlords and tenants must master to avoid pitfalls. Between prohibitions in principle, statutory exceptions and contractual negotiation, sub-letting under a commercial lease requires a rigorous approach to secure the transactions.

The principle prohibiting commercial sub-letting

Legal basis of the prohibition

French law lays down a principle prohibiting commercial sub-letting without the landlord's express authorisation. This rule stems from the intuitu personae nature of the commercial lease: the owner chooses its tenant on the basis of its legal personality, its solvency and its commercial project.

Article 1717 of the French Civil Code provides that "the lessee has the right to sub-let, and even to assign its lease to another, if this right has not been prohibited to it". However, in commercial matters, this right is subject to particular restrictions arising from contractual practice and case law. Assignment, a transaction close to sub-letting, is dealt with separately in our article on the procedure and documents for the assignment of a commercial lease.

The Cour de cassation considers that unauthorised sub-letting is a breach of the tenant's contractual obligations, capable of leading to termination of the lease for fault. This position in the case law protects the legitimate interests of the landlord, who must be able to control the occupation of its property and the activity carried on there.

Consequences of irregular sub-letting

Where a tenant sub-lets without authorisation, several sanctions may apply. The landlord may bring an action for termination of the commercial lease for breach of contractual obligations. This termination results in the eviction of the main tenant and, in consequence, of the sub-tenant.

The evicted sub-tenant has no direct recourse against the owner, even if it acted in good faith. Its only remedy is to turn against the main tenant to obtain damages. This precarious position explains the importance of checking the validity of any sub-letting before committing.

In addition, the landlord may demand payment of unpaid rent from both the main tenant and the sub-tenant, creating a de facto joint liability between the two debtors.

The statutory exceptions to the prohibition

Partial sub-letting for an ancillary activity

The case law accepts certain exceptions to the prohibition in principle, in particular where the sub-letting concerns an activity ancillary to the tenant's main activity. This exception generally concerns cases where a shopkeeper sub-lets a small part of its premises for a complementary activity.

Take a pharmacist holding a commercial lease who sub-lets a space of a few square metres to an optician. If the optical activity remains ancillary to the main pharmaceutical activity and does not alter the general nature of the business, the courts may tolerate this sub-letting even without express authorisation.

This tolerance nevertheless remains limited and depends on the sovereign assessment of the trial judges, who examine the relationship between the areas, the respective turnovers and the commercial coherence of the whole.

Provisions specific to precarious leases

Certain statutory schemes provide specific rules on sub-letting. Article L256-3 of the French Construction and Housing Code provides that, under solidarity-based real-right leases for business activity (baux réels solidaires d'activité), "the occupant may neither assign the occupancy contract nor sub-let the property". This absolute prohibition applies to premises for professional or commercial use that are the subject of this type of arrangement.

This provision illustrates the variety of regimes applicable depending on the legal nature of the occupancy title. Professionals must therefore identify precisely the legal regime of their lease before considering any sub-letting.

Contractual authorisation to sub-let

Express authorisation clauses

Most commercial leases contain specific clauses on sub-letting. These clauses may authorise sub-letting subject to conditions or prohibit it outright. Contractual authorisation is the safest way to secure a commercial sub-letting transaction.

A standard authorisation clause provides that "the tenant may sub-let all or part of the leased premises with the prior written consent of the landlord, such consent not to be refused without a legitimate reason". This wording balances the interests of the parties: the tenant has a right to sub-let, but the landlord retains a right of oversight over the transaction.

A legitimate reason for refusal may lie in the identity of the proposed sub-tenant, the unsuitability of the intended activity for the purpose of the premises, or the insufficiency of the financial guarantees offered.

Authorisation procedure

Where the lease provides for the possibility of sub-letting subject to authorisation, the tenant must follow a precise procedure. This procedure generally involves a written and reasoned request addressed to the landlord, accompanied by information on the proposed sub-tenant and the intended activity. The formalities of authorisation, the landlord's participation in the deed and the removal of the rent cap (déplafonnement) are analysed in our article on the landlord's control over sub-letting.

The landlord has a reasonable period in which to reply, generally fixed by the contractual clause. Failure to reply within the period allowed may be interpreted as tacit consent, depending on the terms of the lease. This interpretation varies, however, according to the drafting of the clause.

The authorisation request must include the essential elements: identity and references of the sub-tenant, nature of the planned activity, intended duration of the sub-letting, amount of the sub-letting rent, and guarantees offered. This information enables the landlord to assess the compatibility of the project with its interests.

Conditions and guarantees

The landlord may attach particular conditions to its authorisation. It may require the sub-tenant to take out specific insurance, to provide financial guarantees, or that certain alterations be made to the premises. These conditions must remain reasonable and proportionate to what is at stake.

A common practice is to ask the main tenant to remain jointly and severally liable for all the obligations under the lease, including those arising from the sub-letting. This joint liability protects the landlord, who keeps its original debtor while accepting the arrival of a new debtor.

The landlord may also require a clause providing for automatic termination of the sub-letting on expiry of the main lease, thus preventing the sub-tenant from claiming a right to remain in the premises.

Conditions for the validity of a commercial sub-letting

Compliance with the purpose of the premises

Any commercial sub-letting must comply with the contractual purpose of the premises. This condition applies even where the sub-letting is authorised by the landlord. The sub-tenant's activity may not derogate from the provisions of the main lease concerning the nature of the permitted business.

If the main lease limits the activity to the sale of clothing, the tenant cannot authorise a sub-tenant to carry on a catering activity, even with the owner's agreement. Any change of purpose requires an amendment to the main lease and, where applicable, completion of the required administrative formalities.

This rule protects the commercial coherence of the building and preserves the rights of other tenants who may have chosen their location according to the type of activities carried on in the building.

Compliance with co-ownership regulations

In buildings under co-ownership (copropriété), the sub-letting must also comply with the co-ownership regulations (règlement de copropriété). This document may contain particular restrictions on certain activities or impose specific conditions for carrying on commercial activities.

Co-ownership regulations may, for example, prohibit activities generating significant noise nuisance or requiring particular fittings. The main tenant and the sub-tenant must ensure that the project is compatible with these constraints.

Failure to comply with the co-ownership regulations may give rise to interference with the enjoyment of other occupants and expose the main tenant to liability claims, irrespective of the validity of the authorisation to sub-let granted by the landlord.

Duration of the sub-letting

The duration of the sub-letting may not exceed that of the main lease. This limit stems from the principle that no one can transfer more rights than they hold. If the main lease expires in two years, the sub-letting cannot be concluded for a longer period.

This time constraint may pose practical difficulties, in particular where the sub-tenant wishes to make substantial investments in the premises. Negotiating an early renewal of the main lease or obtaining commitments on renewal may secure the transaction.

Some leases expressly provide that any sub-letting ends automatically on expiry of the main lease, thus avoiding complications linked to possible challenges by the sub-tenant.

Practical management of three-party relationships

Relations between landlord and sub-tenant

In principle, there is no direct contractual link between the landlord and the sub-tenant. The latter cannot rely on the rights attached to the commercial lease, in particular the right to renewal or eviction compensation (indemnité d'éviction). This situation may create legal uncertainty for a sub-tenant who invests in its business.

However, certain obligations bear directly on the sub-tenant towards the landlord, in particular as regards the preservation of the leased property. The landlord may act directly against the sub-tenant in the event of damage or disturbance caused to the other occupants of the building.

This direct liability extends to obligations relating to the safety and healthiness of the premises. The sub-tenant cannot shelter behind the absence of a contractual relationship to escape these legal responsibilities.

Allocation of obligations

Sub-letting creates a layering of letting relationships that requires a clear allocation of obligations. The main tenant remains liable for all the obligations under the main lease towards the landlord, unless expressly agreed otherwise.

This liability extends to payment of rent, service charges and taxes, upkeep of the premises and compliance with the conditions of use. The main tenant must therefore ensure that the sub-tenant complies with these obligations in order to avoid being held liable by the landlord.

In the relations between main tenant and sub-tenant, a precise contractual allocation is necessary. The sub-letting contract must define who bears which charges, who carries out which works, and on what terms the obligations are performed.

Management of arrears and disputes

Non-payment of rent by the sub-tenant does not release the main tenant from its obligations towards the landlord. This de facto joint liability exposes the main tenant to proceedings even if it no longer occupies the premises and derives no benefit from them.

To guard against this risk, the main tenant may require enhanced guarantees from the sub-tenant: an increased security deposit, a joint and several surety, or unpaid rent insurance. These securities make it possible to cover the sub-tenant's defaults.

In the event of a dispute between the landlord and the main tenant resulting from the sub-tenant's conduct, the main tenant has a remedy against its sub-tenant. This remedy may be exercised both by way of damages and by early termination of the sub-letting contract.

Tax and accounting specificities

Tax regime of sub-letting

Commercial sub-letting has tax consequences for both the main tenant and the sub-tenant. Income derived from sub-letting constitutes commercial income taxable in the hands of the main tenant, even if its main activity falls under another tax regime.

This tax characterisation applies irrespective of the ancillary nature of the sub-letting activity. A professional in private practice who sub-lets part of his or her premises to a colleague must declare the corresponding income as business profits.

The sub-tenant, for its part, may deduct the rent paid from its taxable result under the rules applicable to its tax regime. This deduction follows the same terms as for a standard commercial lease.

Accounting and reporting obligations

Sub-letting may create particular accounting obligations, in particular as regards VAT. If the main tenant opts to subject rent to VAT, it must charge VAT to the sub-tenant and pay this tax over to the Treasury. The conditions of the option and its effects on the lease are set out in our article on VAT on commercial rent.

This VAT option must be notified to the tax office and applies to all lettings made by the taxable person. It may offer advantages in terms of recovering VAT on investments made in the premises.

Reporting obligations also include declaring sub-letting income in the annual tax returns and, where applicable, in the periodic VAT returns.

Negotiating and drafting the sub-letting contract

Essential elements of the contract

The sub-letting contract must contain all the elements necessary to secure the transaction. A precise description of the sub-let premises, with plans and floor areas, avoids later disputes over the extent of the rights granted.

The duration of the sub-letting requires particular attention. It may not exceed that of the main lease and must take account of the dates for revision or renewal of the latter. A clause for automatic termination on expiry of the main lease protects the main tenant.

The amount of the sub-letting rent is freely negotiated between the parties. This rent may be higher than, equal to or lower than the main rent, depending on market conditions and the services included. Indexation of the rent follows the same rules as for standard commercial leases.

Protective clauses

Several specific clauses make it possible to secure the sub-letting transaction. A clause under which the sub-tenant gives a joint and several guarantee for all the obligations under the main lease protects the main tenant against claims by the landlord.

The insurance clause requires the sub-tenant to take out all necessary insurance, in particular third-party liability cover and cover for fire and water damage risks. This obligation prevents the main tenant from bearing alone the consequences of a loss.

A clause providing for automatic assignment of insurance claims allows the main tenant to receive insurance payments directly in the event of a loss, giving it the means to meet its obligations towards the landlord.

Terms of termination

The conditions for terminating the sub-letting must be defined precisely. In addition to the cases of termination under the general law (non-performance of obligations, insolvency), certain particular circumstances justify early termination.

Recovery of the premises by the main tenant for the needs of its own activity may constitute a legitimate ground for termination, subject to a reasonable period of notice and, where applicable, payment of compensation.

Termination for a legitimate and serious reason allows the main tenant to end the sub-letting where the sub-tenant breaches its obligations, even if the breach does not directly affect its relations with the landlord.

Risks and precautions to take

Essential preliminary checks

Before entering into a commercial sub-letting, several checks are necessary. Careful examination of the main lease makes it possible to ensure that sub-letting is authorised or, failing that, to identify the steps needed to obtain that authorisation.

Checking the sub-tenant's financial situation is an elementary precaution. This due diligence includes obtaining account statements, recent balance sheets and, where applicable, bank or trade references. A sub-tenant in financial difficulty exposes the main tenant to unpaid rent.

Examining the administrative authorisations needed for the sub-tenant's activity avoids later complications. Certain activities require particular authorisations (licensed premises, pharmacy, banking), the absence of which may lead to closure of the establishment.

Management of legal risks

The main risk of sub-letting lies in the de facto joint liability that binds the main tenant to the sub-tenant's obligations. This liability extends to damage, neighbourhood disturbance and breaches of contractual obligations.

To limit this risk, the main tenant may require a joint inspection report on entry and exit, a bank guarantee or an increased security deposit. These precautions make it possible to cover the most common risks.

Taking out legal expenses insurance covering disputes linked to sub-letting may also prove useful, in particular for main tenants who sub-let regularly.

Anticipating difficulties

Changes in regulation, in particular in commercial planning or environmental matters, may affect the validity or the conditions of the sub-letting. Regulatory monitoring is necessary to anticipate these changes.

Early termination of the main lease, by termination or by eviction, automatically ends sub-lettings. This situation may give rise to claims for damages from evicted sub-tenants. Professional liability insurance generally covers this type of risk.

Alterations made to the premises by the sub-tenant require the prior authorisation of the main tenant and, often, of the landlord. Failure to obtain authorisation may result in costly obligations to reinstate the premises at the end of the sub-letting.

Frequently asked questions

Can a commercial lease be sub-let without the owner's authorisation?

Commercial sub-letting without the landlord's authorisation is in principle prohibited and constitutes a breach of the tenant's contractual obligations. This irregular sub-letting may lead to termination of the main lease and the eviction of the tenant and the sub-tenant. Only certain limited exceptions, such as sub-letting for an ancillary activity, may be tolerated by the case law. Securing the position involves obtaining the landlord's express authorisation or negotiating a contractual clause permitting sub-letting.

Does a commercial sub-tenant have a right to renewal?

The sub-tenant has no right to renewal of the commercial lease. It is not the holder of the commercial lease but only of a sub-letting contract that does not confer the rights attached to the status of commercial tenant. On non-renewal or termination of the main lease, the sub-tenant must leave the premises without being able to claim eviction compensation. Its only remedy is to turn against the main tenant to obtain redress for the loss suffered.

How is the rent for a commercial sub-letting set?

The sub-letting rent is freely negotiated between the main tenant and the sub-tenant. It may be higher than, equal to or lower than the rent under the main lease depending on market conditions and the services included. No specific regulation governs the setting of this rent, unlike the rent under the main commercial lease. Indexation of the sub-letting rent follows the same rules as standard commercial leases, generally on the commercial rent index (indice des loyers commerciaux) or the tertiary activities rent index (indice des loyers des activités tertiaires).

What happens if the sub-tenant fails to pay?

The sub-tenant's non-payment does not release the main tenant from its obligations towards the landlord. The landlord may sue the main tenant for recovery of all the rent due, creating a de facto joint liability between main tenant and sub-tenant. The main tenant then has a remedy against the defaulting sub-tenant to recover the sums paid to the landlord. To protect itself, the main tenant may require enhanced guarantees: an increased security deposit, a joint and several surety or unpaid rent insurance.

Is commercial sub-letting subject to VAT?

Sub-letting income constitutes commercial income taxable in the hands of the main tenant. The latter may opt to subject rent to VAT, in which case it must charge VAT to the sub-tenant and pay it over to the Treasury. This option, which applies to all lettings made by the taxable person, may offer advantages in terms of recovering VAT on investments made in the premises. The sub-tenant may deduct the rent paid from its taxable result under its tax regime.

Can a commercial sub-letting be terminated early?

Early termination of a commercial sub-letting is governed by the contractual rules defined between the parties. The contract may provide for specific cases of termination: non-performance of obligations, recovery of the premises by the main tenant, or a legitimate and serious reason. Automatic termination on expiry of the main lease is a standard protective clause for the main tenant. In the absence of a specific clause, termination may take place only in the cases provided for by the general law of contract or in the event of a serious breach by the sub-tenant.

How can an irregular commercial sub-letting be regularised?

Regularising an irregular commercial sub-letting requires the landlord's agreement to the existing situation. This regularisation may take the form of an amendment to the main lease authorising the current sub-letting, or of negotiating a new lease directly with the sub-tenant. The landlord may attach particular conditions to its agreement: additional guarantees, a change in rent, or specific clauses. Absence of the landlord's agreement leaves the situation irregular and the lease at risk of termination. Regularisation must take place quickly to avoid the legal situation worsening.

Mastering sub-letting under a commercial lease requires a rigorous approach combining legal analysis, contractual negotiation and risk management. Far from being a simple arrangement between main tenant and sub-tenant, this transaction involves a complex triangulation of interests and responsibilities. To secure a commercial sub-letting durably, always seek the landlord's express authorisation and set out the obligations of each party precisely. If in doubt about the validity of a planned or existing sub-letting, have your situation analysed by a real estate law professional before difficulties set in.