How To Respond To A Commercial Rent Increase Notice

Getting a commercial rent increase notice can feel like a sudden hit to your cash flow - especially if you’re already juggling wages, stock, suppliers, and rising operating costs.

The good news is: a rent increase notice doesn’t always mean you have to accept the new rent as-is. In many cases, what you can (and should) do next depends on what your lease says, whether your premises are covered by retail leasing laws in your state or territory, and whether the landlord has followed the correct process.

In this guide, we’ll walk you through practical steps you can take to respond calmly and strategically - from checking your lease and validating the notice, to negotiating, disputing (if needed), and protecting your business relationship with your landlord.

And because each lease (and each state/territory regime) is different, we’ll also flag the points where it’s worth getting a lawyer involved before you commit to anything that could lock you into higher rent for years.

What Is A Commercial Rent Increase Notice (And Why It Matters)?

A commercial rent increase notice is a written notice from your landlord (or their agent) telling you that the rent under your lease is increasing. It usually states:

• the new rent amount (or how it will be calculated)
• the effective date of the increase
• the rent review method (for example CPI, fixed percentage, or market review)
• any supporting material (often needed for market reviews)

It matters because rent is typically one of the biggest overheads for small businesses - and a rent increase can affect your pricing, staffing decisions, and even whether the location is still viable.

It’s also important because “rent” in commercial leases can be broader than just the base rent. Depending on your lease, your overall occupancy cost may include outgoings, marketing levies (in some retail centres), and other charges. So even a seemingly small rent increase can compound with other costs.

Commercial Lease Vs Retail Lease: Why The Category Changes Your Options

One of the first questions to work out is whether you’re in a standard commercial lease, or a retail lease covered by retail leasing legislation in your state or territory.

If you’re covered by retail leasing laws, there are often additional rules around disclosure, certain rent review processes, and how disputes must be handled. Exactly what applies can vary significantly between jurisdictions (and some leases/premises are excluded), so it’s important to check your local regime and your lease. If you’re not covered, your rights will usually come down to the lease terms and general contract principles.

Either way, you should treat the notice as time-sensitive and worth reviewing carefully.

Step 1: Check Your Lease Rent Review Clause (Before You Reply)

Before you respond to a commercial rent increase notice, pull out your lease (including any variations, renewal documents, or side letters) and find the rent review clause.

This clause usually answers the key questions:

• When can rent be increased (annually, at option exercise, at set dates)?
• How is the increase calculated (CPI, fixed %, market review, “greater of” clauses)?
• What process must be followed (notice period, valuation steps, dispute timelines)?
• What deadlines apply if you disagree?

If your lease is approaching renewal and the rent increase is tied to extending the lease term, it’s also worth checking your renewal notice requirements. For example, if you’re in Queensland, these rules can be time-sensitive, and it can help to understand typical lease renewal notice periods before you commit to a new rent.

Common Rent Review Types You’ll See

• Fixed increase: rent increases by a set amount or percentage (for example, 4% annually).
• CPI increase: rent increases in line with inflation (Consumer Price Index), usually with a defined reference quarter.
• Market review: rent resets to market rent, often requiring valuation evidence and sometimes negotiation or an independent valuer process.
• “Greater of” clauses: rent increases by whichever is higher (for example, CPI or 3%).

If the notice doesn’t match what your lease allows, that’s an early sign you may be able to challenge it.

Step 2: Validate The Notice (Is It Actually Compliant With The Lease?)

Next, compare what the landlord has sent you against what the lease requires.

A commercial lease rent increase notice may be invalid (or at least disputable) if it doesn’t follow the lease process. Some common issues we see include:

• Wrong timing: the increase is sent too early, too late, or outside the permitted review date.
• Incorrect calculation: CPI applied incorrectly, wrong base rent used, or compounding errors.
• Insufficient notice period: the lease might require a certain number of days’ notice.
• Missing market review requirements: for example, no valuation information, or no explanation of the methodology (where the lease requires it).
• Rent can’t be increased during a fixed period: some leases “lock in” rent for part of the term.

If your lease is a retail lease, there may also be additional requirements (or mandatory steps) around market rent determinations and dispute procedures. These details vary between states and territories, so it’s worth checking the rules that apply to your premises.

Don’t Ignore The Notice (Even If You Think It’s Wrong)

Even if you believe the notice is incorrect, it’s rarely a good strategy to stay silent. Many leases include strict timeframes for disputing a market review or requesting further details. If you miss those timeframes, you may lose the chance to challenge the increase.

If you’re unsure how to interpret the clause, getting the lease reviewed can prevent an expensive mistake. This is a common point where a commercial lawyer can help you understand your leverage and your risks.

Step 3: Decide Your Commercial Response Strategy (Accept, Negotiate, Or Dispute)

Once you understand the lease clause and whether the notice is compliant, you have three broad options:

• Accept the increase (if it’s fair and consistent with the lease)
• Negotiate (if it’s technically valid but commercially unsustainable)
• Dispute (if it appears non-compliant or unreasonable, particularly for market reviews)

The “right” strategy depends on your broader business position. Ask yourself:

• Is the location critical to your revenue (foot traffic, logistics, customer base)?
• How long is left on the lease term, and do you have option periods?
• Would relocation cost more than the rent increase?
• Is this the start of a pattern (repeated aggressive increases)?
• Are you also dealing with other occupancy issues (repairs, maintenance, access problems)?

If You Plan To Negotiate: Put Your Proposal In Business Terms

Landlords are often more receptive when you negotiate in a way that protects their long-term income too.

Depending on your situation, you could propose:

• a smaller rent increase now, with a review again in 6–12 months
• a stepped increase (for example, 2% now, 2% later)
• a longer lease term in exchange for moderated rent
• a temporary rent relief period (if turnover has dropped)
• incentives (fit-out contribution, rent-free period) to offset the increase

If you’re negotiating changes, don’t rely on a phone call alone. Document any agreement properly, ideally as a lease variation, so there’s no confusion later.

If You Plan To Dispute: Follow The Lease Process Closely

For market reviews especially, leases often include formal steps and deadlines (for example, exchanging evidence and appointing a specialist valuer if you can’t agree).

What you do next should be guided by the lease wording and any relevant retail leasing laws that apply to your premises. A dispute handled correctly can lead to a fairer rent outcome. A dispute handled poorly can increase costs and strain the relationship.

Step 4: Respond In Writing (Use A Clear, Calm, Evidence-Based Letter)

Your response to a commercial rent increase notice should usually be in writing, even if you’ve had a phone discussion first.

You don’t need to be aggressive to protect your rights. A good response is clear, polite, and anchored in the lease wording.

What To Include In Your Response

• Acknowledge receipt of the notice and the date you received it.
• Reference the lease clause that governs the rent review (clause number and summary).
• State your position: accept, request clarification, propose negotiation, or dispute.
• Ask for supporting information if needed (for market reviews, CPI workings, or evidence used).
• Reserve your rights if you need time to consider (especially if deadlines apply).

Example Structure (Plain English)

As a general structure, your email/letter might look like this:

• “We acknowledge receipt of your rent review notice dated…”
• “We understand the rent review is governed by clause…”
• “Based on our review, we have concerns about…”
• “We request the following information…”
• “We would like to discuss a revised arrangement…”

If you end up agreeing to changes, remember the details matter. If you’re signing anything “on behalf of” your business entity, make sure it’s executed properly and by the right person (or under the right authority). Issues can arise if the signing block or authority isn’t correct, which is why it can help to understand p.p. signatures if you’re signing under delegation.

Step 5: Prepare For The Negotiation (And Watch For Hidden Lease Risks)

If you’re negotiating, you’ll get better outcomes if you prepare like you would for any other commercial decision: know your numbers, know your alternatives, and know what you can trade.

Get Clear On Your “Walk Away” Point

Before negotiating, calculate what the rent increase really means across the remainder of the lease term (not just monthly). Also consider:

• rent + outgoings together (total occupancy cost)
• cash flow impact during slower trading months
• how rent affects your pricing and margins
• cost to relocate and re-fit

This helps you decide whether your goal is to reduce the increase, delay it, or restructure the lease entirely.

Be Careful About “Agreeing” Without A Proper Variation

We often see situations where a landlord agrees to a concession informally, but the paperwork is never updated. Later, when there’s a dispute or sale of the property, the concession disappears.

If you’re changing key terms, a written variation is usually essential. Depending on what’s being changed, you may also need to look at the broader lease terms (for example, assignment rights, make good obligations, or termination triggers). If you’re already under pressure and considering an exit, it may help to understand the risks of breaking a commercial lease agreement before you take any steps.

Consider The Bigger Picture: Risk Management And Business Continuity

A rent increase can be a prompt to review whether your lease still supports your business goals.

For example:

• If you’ve grown, you may need more space or better terms.
• If your business has moved online, you might not need the same footprint.
• If foot traffic has dropped due to changes in the area, you may need rent that reflects that reality.

It’s not just about paying less rent - it’s about building a stable base so you can plan confidently.

Key Takeaways

• A commercial rent increase notice should match your lease rent review clause, including timing, calculation method, and any notice requirements.
• Start by checking whether the premises are covered by retail leasing laws in your state or territory, as this may affect the required process and dispute pathway.
• Validate the notice carefully - incorrect CPI calculations, wrong dates, and missing market review evidence (where required) are common issues.
• Your response strategy is usually to accept, negotiate, or dispute, and the best option depends on your business position and how critical the location is.
• Respond in writing, keep it calm and evidence-based, and don’t miss any lease deadlines that could limit your ability to challenge the increase.
• If negotiations change the deal, document it properly (typically via a lease variation) so the outcome is enforceable and clear.

If you’d like help reviewing a rent increase notice or negotiating changes to your lease, you can contact Sprintlaw at 1800 730 617 or team@sprintlaw.com.au.

Official Sources to Check

Rules and regulator guidance can change. Check the current official material most relevant to this issue before relying on the article:

• ACCC: Contracts and unfair contract terms