What Does “Sublet” Mean For Your Business? Commercial Subleasing In Australia

If you run a small business, your premises can be one of your biggest fixed costs - and one of your biggest commitments. So when business conditions change (a quieter season, a shift to online sales, a new location opportunity, or simply needing to cut overheads), it’s normal to start looking for flexibility.

That’s usually when you hear the term “sublet”. But what does it mean to sublet in a commercial leasing context in Australia, and what can go wrong if you get it wrong?

Subleasing can be a smart way to reduce costs, share space, or monetise unused parts of your premises. However, it’s also an area where small businesses often get caught out - because your rights and obligations depend heavily on your head lease, the type of premises, what your landlord will agree to, and (in some cases) the laws that apply in your state or territory.

Below, we break it down in practical, plain-English terms, with a focus on what matters for your business (not legal theory). We’ll also cover what to check before you agree to anything, and the key documents that can protect you.

What Does “Sublet” Mean In A Commercial Lease?

In simple terms, to sublet (or “sublease”) means you lease your leased premises (or part of it) to another business.

There are usually three parties involved:

• Landlord (Head Lessor): the owner of the premises.
• You (Head Tenant): the business that signed the original lease with the landlord.
• Subtenant: the business you allow to occupy the space under a sublease.

Importantly, in a typical sublease arrangement:

• your original lease with the landlord (the head lease) continues; and
• you remain responsible to the landlord for the obligations under the head lease (even if your subtenant doesn’t pay you, damages the premises, or breaches rules).

That “still responsible” point is the core risk. A sublease can help your cashflow, but you’ll want the paperwork and approvals right so you’re not left carrying all the downside.

Subletting All Vs Part Of The Premises

Subletting isn’t always “handing over the whole shop”. It can include:

• Subletting the entire premises: for example, you’re relocating but your lease still has 18 months left.
• Subletting part of the premises: for example, you have a spare office, consulting room, or storage area you want another business to use.

Part-subletting is common for shared retail spaces, studios, commercial kitchens, allied health clinics, and co-working-style arrangements. But it still needs to be done properly - especially if signage, customer access, or business hours overlap.

Sublease Vs Assignment Vs Licence: What’s The Difference?

If you’re trying to understand what subletting means for your situation, it helps to compare subleasing with two other arrangements that are often confused with it: assignment and licensing.

1) Sublease (Subletting)

A sublease is a new lease agreement between you (the head tenant) and the subtenant.

• You keep your lease with the landlord.
• The subtenant pays rent to you (not usually to the landlord).
• You are typically still on the hook for head lease compliance.

2) Assignment Of Lease

An assignment is when you transfer your interest in the lease to a new tenant (the assignee). After assignment, the assignee becomes the tenant under the lease (subject to the lease terms and landlord consent).

Depending on the lease terms, you may be released from future obligations - or you may remain liable in certain ways (for example, via guarantees or indemnities).

If you’re considering assignment, it’s common to document it with a deed. In many cases, businesses use a Deed of Assignment of Lease to record the transfer clearly and make sure everyone knows who is responsible going forward.

3) Licence To Occupy (Licence Agreement)

A licence is generally a more flexible permission to use space - often without granting the same rights as a lease. While “exclusive possession” is one factor courts look at, whether an arrangement is legally a lease or a licence depends on the overall substance of the arrangement, not just the label the parties use.

Licences can suit arrangements where:

• you want to share space with more control (for example, desk use or room booking);
• you need flexibility to move people around; or
• the “occupier” is using the premises on limited terms.

Many businesses use a Property Licence Agreement where subleasing isn’t appropriate, or where the lease restricts subletting but allows certain types of shared occupancy.

If you’re unsure whether your proposed arrangement is truly a sublease or actually a licence, it’s worth getting advice before you sign - because the wrong structure (and the wrong document) can create major disputes later.

Can You Sublet Commercial Premises In Australia?

Often, yes - but not automatically.

In most commercial leases, your ability to sublet depends on:

• what the head lease says about “dealing” with the lease (including subletting, licensing, or assignment);
• whether the landlord’s consent is required; and
• any laws that apply to your particular lease (for example, retail leasing laws in your state or territory, which can set specific rules around consent and procedure).

Check Your Lease First (Don’t Assume You Can Sublet)

Many leases include clauses that:

• prohibit subletting entirely;
• allow subletting but only with landlord consent;
• allow subletting of part of the premises only (or only in specific circumstances);
• require the subtenant to meet certain criteria (such as being reputable, operating an approved use, and having financial capacity); or
• require you to give the landlord a copy of the sublease and supporting documents.

If you sublet without the required consent, you could be in breach of the head lease. Depending on the lease and the circumstances, that can trigger default notices, termination risks, or claims for loss.

Landlord Consent: What “Reasonable” Often Looks Like

Even where consent is required, what a landlord can and can’t do will depend on your lease terms and the law that applies (including any retail leasing legislation). In practice, landlords often consider things like:

• the proposed subtenant’s business type and fit with the building/centre;
• the subtenant’s financial position and references;
• whether the sublease terms are consistent with the head lease (for example, not granting rights you don’t have); and
• whether the arrangement could increase risk, wear and tear, or compliance issues.

From your perspective, it’s helpful to prepare a “consent pack” early (details of the subtenant, proposed use, draft sublease/licence terms, and any required forms) so the process doesn’t drag out while you’re still paying full rent.

Key Legal And Commercial Issues To Think About Before You Sublet

Subletting can be a practical move, but it’s not just about finding someone to pay you rent. Before you lock anything in, it’s worth thinking through these risk areas.

1) Your Ongoing Liability Under The Head Lease

In most sublease arrangements, the landlord can still hold you responsible for:

• rent and outgoings;
• repair and maintenance obligations;
• make good obligations at the end of the lease;
• complying with permitted use and fit-out rules; and
• any damage caused by the subtenant or their customers.

This is why a strong sublease isn’t just a formality - it’s your main tool for shifting risk back to the subtenant and giving you enforceable rights if something goes wrong.

2) Permitted Use (And Avoiding “Use” Breaches)

Commercial leases almost always have a permitted use clause (for example, “retail sale of clothing and accessories”).

If your subtenant uses the premises outside the permitted use - even if it seems minor - you may be in breach of the head lease. That can become a real issue where the landlord is strict about compliance, or where the building has specific zoning or centre rules.

A practical tip: match the subtenant’s proposed use to your permitted use in writing, and include a clear obligation in the sublease that they must comply with the head lease rules.

3) Outgoings, Utilities, And Who Pays For What

Disputes often arise because parties assume different things about:

• outgoings (council rates, strata levies, building insurance contributions);
• electricity, water, internet, and waste services; and
• shared facilities (kitchens, bathrooms, common waiting areas).

If you’re subletting part of the premises, you’ll also need a fair method for apportioning costs (for example, fixed percentage, based on floor area, or a set monthly contribution).

4) Fit-Out, Signage, And “Make Good”

“Make good” is a classic end-of-lease pain point. If your head lease requires you to return the premises to base building condition, you’ll want to make sure your subtenant doesn’t install items that create extra removal costs later.

Think through:

• what fit-out changes are allowed;
• who owns fixtures (yours vs theirs);
• who pays for removal; and
• whether the subtenant must reinstate their part of the premises when they leave.

5) Insurance And Risk Allocation

Even if your subtenant is responsible for their own operations, an incident at your premises can still expose you to legal risk.

You’ll often want to consider:

• whether the subtenant must hold public liability insurance;
• whether you need to be noted as an interested party on the policy; and
• whether the subtenant must indemnify you for losses caused by their acts or omissions.

Insurance is a commercial issue as much as a legal one, but your contract terms should line up with the practical reality of how risk is managed day-to-day.

What Should A Sublease Agreement Include?

If you’re going to sublet, the goal is to put clear, enforceable rules in place - so you can protect your business and your relationship with the landlord.

While every situation is different, a good commercial sublease often covers:

• Parties and premises: exactly who is involved and what area is being sublet (especially important for partial subleases).
• Term and options: start/end dates, any extension options, and how that fits within the head lease term.
• Rent and payment terms: how much, when it’s paid, and what happens if payment is late.
• Bond/security: whether a security deposit is held, where it’s held, and conditions for deductions.
• Outgoings and utilities: who pays what, and how shared costs are calculated.
• Permitted use: the subtenant’s business activities must stay within your head lease permitted use.
• Compliance with head lease: the subtenant should be required to comply with the head lease obligations that relate to their use and occupation.
• Repair and damage: responsibilities for maintenance, repairs, and damage caused by the subtenant.
• Fit-out and alterations: approval processes, ownership of improvements, and reinstatement requirements.
• Insurance: what coverage is required and what proof must be provided.
• Default and termination: what counts as a breach, notice requirements, and when the sublease can be ended.
• Access and quiet enjoyment: how access works, especially in shared premises, and what boundaries exist between you and the subtenant.

One practical reality to keep in mind: your sublease can’t give the subtenant more rights than you have under the head lease. For example, you generally can’t grant a sublease term that extends beyond the head lease term (unless the landlord agrees and the lease is extended).

If you haven’t already had your head lease reviewed (or you’re not sure what it allows), it can be helpful to start with a Commercial Lease Review so you’re negotiating the sublease from a position of clarity.

How To Sublet Your Commercial Premises: A Practical Step-By-Step

If you’re trying to move quickly (without creating legal risks), a structured approach can help. Here’s a practical path many small businesses follow.

1) Review Your Head Lease And Identify Restrictions

Start with the clauses about “assignment”, “subletting”, “licences”, “dealing”, and “consent”.

Also check related clauses that might affect the arrangement, including:

• permitted use;
• signage rules;
• hours of operation;
• fit-out approvals;
• security and building rules; and
• any make good obligations.

2) Choose The Right Structure: Sublease Or Licence?

Ask yourself what you actually want in practice:

• Do you want them to have exclusive possession of a defined area? (This leans towards a sublease, though the right structure depends on the full arrangement.)
• Do you want flexibility, shared access, and more day-to-day control? (This may lean towards a licence.)

Getting this right early saves a lot of rework later.

3) Get Landlord Consent (If Required) Before Locking In Terms

If your lease requires consent, try not to “promise the space” to a subtenant before you have that consent pathway clear.

In many cases, you can negotiate commercially with a potential subtenant, but include clear wording that the arrangement is subject to landlord consent.

4) Document The Arrangement Properly

Handshake deals are where problems start - especially when there’s a dispute about rent, damage, access, or whether someone can be asked to leave.

A well-drafted agreement can also help you avoid issues that overlap with other compliance areas, like privacy and operational policies. For example, if you share a reception area and collect customer details on behalf of different businesses, you may need to think about how personal information is handled and whether your business needs a Privacy Policy that reflects what actually happens onsite.

5) Set Up Practical Processes For Shared Premises

If you’re subletting part of your premises, a few operational rules can reduce disputes, such as:

• who holds keys and access cards;
• opening/closing procedures;
• cleaning responsibilities;
• noise and customer management; and
• how shared equipment is booked or maintained.

These can be recorded in the sublease/licence itself, or in an attached policy that both parties agree to follow.

Key Takeaways

• To sublet means you lease out your leased commercial premises (or part of it) to another business, while your head lease with the landlord continues.
• In most subleases, you remain responsible to the landlord for the lease obligations - so if the subtenant breaches, you may still carry the risk.
• Subleasing is different from assignment (transferring your lease to someone else) and a licence (permission to occupy under more flexible terms, which may or may not amount to a lease depending on the substance of the arrangement).
• Always check your head lease for restrictions and whether landlord consent is required before you agree to sublet.
• A clear, tailored agreement should cover rent, outgoings, permitted use, repairs, fit-out rules, insurance, and what happens if something goes wrong.
• If you’re sharing premises, practical rules around access, shared facilities, and customer management can prevent disputes later.

This article is general information only and isn’t legal advice. If you’d like help subletting your commercial premises or reviewing your options, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.