Ratchet Clauses In Commercial Leases: Australian Business Guide

If you’re negotiating a commercial lease, rent review clauses are one of the most important terms to get right. Among them, “ratchet clauses” can have a big impact on your long-term occupancy costs - especially when markets soften.

In this guide, we’ll explain what ratchet clauses are, when they’re allowed in Australia, how they interact with retail leasing laws, and practical steps to negotiate fair rent review terms. Our goal is to help you approach your next lease with confidence and a clear strategy.

What Is A Ratchet Clause In A Commercial Lease?

A ratchet clause is a rent review mechanism that stops the rent from going down at a review date - even if the market rent has fallen. In other words, the “ratchet” only allows rent to move one way.

Ratchets usually appear alongside one or more rent review methods, such as:

• Market review (rent is adjusted to current market)
• Fixed increase (for example, 3% per year)
• Indexation (for example, CPI + a margin)

Where a ratchet applies, a market review might find the market rent is lower than what you’re paying, but the clause says the new rent cannot drop below the current rent. That’s an upward-only review in practice.

Because rent is typically one of your largest overheads, it’s critical to understand how ratchets (and the broader rent review regime) will operate over the life of your lease.

Are Ratchet Clauses Legal In Australia?

It depends on the type of lease and the applicable state or territory law.

For retail leases, most jurisdictions prohibit ratchet clauses that prevent rent from decreasing on a market review. For example, the Retail Leases Act (NSW) restricts rent review provisions that would stop a reduction where the review is to “market rent.” Similar prohibitions exist in other states and territories for retail leasing.

For non-retail commercial leases (for example, offices in some contexts or certain industrial tenancies), ratchet clauses may be permitted and are subject to negotiation, the wording of the lease, and general contract law principles. This is why knowing which laws apply to your premises - retail vs non-retail - is an essential first step.

If you’re unsure whether your premises are covered by retail leasing legislation in your state, it’s best to get a Commercial Lease Review before you sign. This can help you identify any unlawful or high-risk rent review provisions early, while you still have leverage to renegotiate.

Types Of Ratchet Clauses You May See

Not all ratchets look the same. Here are the common versions you’ll encounter and what they mean in practice.

1) Upward-Only Market Review

On a market review date, the rent is assessed against current market conditions - but cannot drop below what you’re already paying. If market rent is higher, the rent goes up; if it’s lower, the rent stays the same.

2) Floor-To-Last-Rent (Or Floor-To-Base-Rent)

The lease sets a “floor” at the last reviewed rent or a defined “base rent,” preventing any reduction beneath that threshold at any review (market or otherwise).

3) Hybrid Ratchets

Some leases combine methods. For example, yearly CPI increases with a market review every three years - but the market review is subject to a ratchet. The complexity can mask the long-term effect, so it’s important to map the potential rent path across the full term and options.

4) Ratchets Hidden In Definitions

Occasionally, the restriction is embedded in definitions or formulas (for example, “the reviewed rent must not be less than the immediately preceding rent”). Always read the definitions and rent review schedule carefully - not just the clause headings.

Key Risks For Tenants (And How To Negotiate Fair Terms)

Ratchets shift market downside risk from the landlord to the tenant. That’s not necessarily a deal-breaker, but you should go in with eyes open and negotiate a fair balance.

Cash Flow Risk In Downturns

If local market rents fall, an upward-only review means you won’t share in that relief. This can squeeze margins and limit your ability to adapt to changing conditions.

Consider asking for market reviews without an upward-only ratchet. For retail leases, this may be a legal requirement. For non-retail, you can negotiate an unbiased market reset at option or major review dates.

Compounding Effects Over The Term

Fixed increases (for example, 3% per annum) plus a ratcheted market review can produce “step-ups on step-ups.” Over a multi-year term and options, this compounds significantly.

Test the numbers. Build a few scenarios (high, mid, and low market paths) and see how the clause behaves. If the tenant-favourable scenario never eventuates in your model (because of the ratchet), seek a more balanced mechanism.

Complexity And Disputes

Ambiguous drafting leads to valuation disputes, delays, and legal costs. Clear definitions - especially of “market rent,” assumptions, disregards, incentives, and outgoings - reduce the risk of disagreement at review time.

Ask the landlord to align the drafting with plain-language, market-standard rent review processes. And before you commit, consider a Commercial Lease Lawyer to translate the “what ifs” into practical advice for your business model.

Retail Leasing Law Compliance

For retail premises, a ratchet that prevents a decrease on a market review is often prohibited. Even if included in a draft lease, it may be void. That said, you shouldn’t rely on an unlawful clause falling away later - push for compliant, tenant-friendly wording up front.

If you’re negotiating in NSW, it’s worth reading this quick overview of commercial rent increases and how rent reviews are typically handled, so you know what to expect.

Fit With Options To Renew

Options to renew usually trigger a market review. If the option review is upward-only, you lose the main benefit of resetting the rent to actual market conditions.

When renewing, check the timeframe and rules in your state - for NSW, see lease renewal notice periods - and make sure the option review mechanism is compliant and balanced.

Practical Steps Before You Sign Or Renew

A little structure goes a long way when negotiating rent review clauses. Here’s a practical approach we see work for tenants.

1) Confirm Which Law Applies (Retail Or Not)

Identify whether your premises fall under retail leasing legislation in your state or territory. That classification shapes what’s permissible at law (including restrictions on ratchets) and the disclosure obligations on the landlord.

2) Map The Rent Review Cycle

Note each review date, the method used (CPI, fixed, market), whether an expert determination process is included, and where any ratchet applies. Lay this out on a simple timeline through the term and option periods.

3) Stress-Test The Numbers

Model different market scenarios over the term. Consider incentives, fit-out amortisation, promotion levies, and outgoings to get a fuller picture of occupancy costs. If the clause structure means rent only ever moves upward, recalibrate the mechanism in your negotiations.

4) Negotiate Balanced Wording

• For retail leases, remove any upward-only restriction on market reviews to align with retail leasing laws.
• For non-retail, consider neutral market resets at option or triennial reviews, or caps and collars that are genuinely two-way.
• Clarify “market rent” assumptions, including incentives, make-good, and what outgoings are included.
• Ensure any expert determination procedure is workable and time-bound.

5) Align With The Rest Of The Lease

Rent reviews interact with many other clauses: option notices, landlord works, relocation rights, make-good, and assignment/transfer. Make sure the rent regime still makes sense if you later assign the lease via a Deed of Assignment of Lease, extend the term through an Extension of Lease, or need to restructure your occupancy.

6) Get The Documents Reviewed Before Signing

If you’re starting from a heads of agreement, it’s wise to arrange an Agreement for Lease Review so rent review principles are locked in before the full lease is issued. You’ll have stronger leverage at this early stage than after a draft lease arrives.

Where timing is tight, a focused lease review can zero in on rent review, outgoings, make-good, and relocation rights - the clauses that most affect your day-to-day operations and costs.

7) Keep Renewal And Exit Options In Mind

Plan ahead for renewal or exit. For example, option notice dates, your right to request a market review, or whether you can negotiate alternative increases on renewal. And if you’re in Queensland, this quick primer on commercial tenancy agreements is a useful reference as different rules may apply to retail and non-retail premises.

How Landlords Typically Justify Ratchets (And Tenant Counterpoints)

Understanding the commercial logic on both sides helps you reach a fair middle ground.

Landlord Position

• Predictable income: Financing and asset valuation models assume stable or increasing rent.
• Incentives economics: Upfront incentives are “paid back” over the term; if rent falls, the economics can break.
• Market practice: In some non-retail segments, upward-only mechanisms are common.

Tenant Counterpoints

• Market symmetry: Market reviews should track actual market conditions, both up and down.
• Sustainability: A balanced rent path supports business sustainability and reduces default risk.
• Alternative protections: Caps/collars, staged increases, or incentive amortisation can protect value without a one-way ratchet.

Often, the outcome is a compromise: no ratchet on market reviews (particularly for retail), clearer market assumptions, and indexation or fixed increases in interim years.

What If You’re Already In A Lease With A Ratchet?

If you’ve already signed, you still have options. You can:

• Review the clause and rent review schedule to confirm whether the ratchet applies to market reviews, indexation, or both.
• Check compliance with retail leasing laws in your state or territory (a prohibited clause may be unenforceable).
• Prepare early for renewal - option negotiations are a prime opportunity to reset the rent mechanism.
• Explore a deed of variation if both parties are willing to rebalance the review regime ahead of a significant review.

Timing is everything. Start discussions months before key dates, and put any agreed changes in writing via a formal variation. If you’re approaching renewal in NSW, revisit your notice period and the process for market review well in advance.

Key Takeaways

• A ratchet clause stops rent from decreasing at review, shifting market downside risk to the tenant.
• For retail leases, upward-only market reviews are generally prohibited under retail leasing laws; for non-retail, ratchets may be negotiable.
• Model the rent review path across the full term and options so you understand compounding effects and cash flow impacts.
• Negotiate clear, balanced wording for market reviews, indexation, expert determination, and any caps/collars - and remove prohibited ratchets in retail leases.
• Align rent review clauses with renewals, assignments, and variations so the regime still works if your circumstances change.
• Get leases reviewed before you sign or renew - early advice can prevent costly surprises and position you for a sustainable occupancy cost base.

If you’d like a consultation on ratchet clauses and rent reviews in your commercial lease, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.