Skip to content

What Should You Consider Before Agreeing to a Retail Price Index (RPI) Rent Review?

Summary

  • An RPI rent review ties your rent increases to the retail price index, meaning your rent rises in line with inflation, which can result in significant cost increases, particularly during periods of high inflation.
  • Tenants can negotiate protections such as a cap on increases or a break clause to manage financial exposure under an RPI rent review clause.
  • If a dispute arises, the lease’s dispute resolution provision – often involving an independent surveyor – will govern how disagreements about the new rent are resolved.
  • This article is a plain-English guide to retail price index rent reviews in commercial leases for business tenants in Australia, produced by LegalVision, a commercial law firm.
  • LegalVision specialises in advising clients on commercial leasing matters.

 

Tips for Businesses

Before signing a commercial lease with an RPI rent review clause, check current inflation trends. Negotiate a cap to limit rent increases and consider including a break clause. Review the dispute resolution process so you understand your options if you disagree with a proposed rent increase.

Summarise with:
ChatGPT logo ChatGPT Perplexity logo Perplexity

On this page

As a tenant with a commercial lease, you occupy a property as your business premises in return for rent. A commercial lease agreement is a legally binding contract between you and your landlord. It details the terms and conditions of your lease, including the lease term and the rental amount. However, the rental amount for your commercial lease can change during your lease if it contains a rent review clause. Rent clauses can vary between commercial leases; some may detail an open market rent review or an index-linked rent review. This article will explain what you should consider as a commercial tenant regarding retail price index rent reviews.

Rent Review 

A rent review occurs when a commercial landlord reviews a tenant’s rent to occupy their property. Depending on the lease’s term, it happens periodically, typically every five years. A rent review usually only results in rent staying the same or increasing

The details of a rent review will be in the rent review clause in the commercial lease agreement. This will state, for example:

  • the date the rent review will take place;
  • the rent review process (including the way the new rent amount is calculated);
  • how you appeal the rent review; and
  • what happens in case of late payment of the new rent. 

One type of index-linked rent review is a retail price index (RPI) rent review. 

Retail Price Index Rent Reviews 

A retail price index rent review is a type of rent review that uses the retail price index (RPI). The RPI measures inflation based on the price of retail goods and services. Its figures are published monthly and calculated based on the typical consumer’s spending. Where inflation rises, so do RPI figures, and where it decreases, the same occurs for RPI figures. 

Where RPI determines a rent review, the rent is based on the inflation level when the landlord carries out the rent review. Therefore, the percentage of your rent increase will reflect the percentage increase of inflation. However, this can be calculated differently, and tenants should ensure that the chosen method benefits them. 

For example, this might compound annually or be planned as a single increase over the term based on the total RPI change. The total increase between these two approaches will mean a significantly different amount.

Continue reading this article below the form
Need legal advice?
Call 0808 196 8584 for urgent assistance.
Otherwise, complete this form, and we will contact you within one business day.

Key Considerations 

If, as a commercial tenant, you are about to enter a commercial lease agreement, you should be familiar with any rent review clause. If the lease agreement specifies that the rental amount is subject to change per the RPI, there are key considerations to note.  

Current Inflation Levels

RPI rent reviews mean your landlords will assess the rental amount based on inflation. Consequently, before you enter a commercial lease with an RPI rent review, you should consider current inflation levels. In the past, RPI has mostly stayed the same. However, since 2022, it has risen sharply. This means that your rent may increase considerably. 

Importantly, your commercial lease agreement is a legal contract you must follow. So, if your rent increases and any appeal of this is unsuccessful, you have to commit to a higher rental price.

A “Cap”

If your landlord includes an RPI rent review in the commercial rent agreement, consider negotiating a “cap” on any increase. This means that where inflation suddenly rises rapidly, you can be confident that the rise will never go above a capped figure.

However, your landlord may only agree to this by including a rent review “collar”, which states a minimum amount the rent must increase. Tenants should carefully consider whether the ‘collar’ would be higher than the RPI and should financially plan for this in advance.

Break Clause

If your landlord wants to include an RPI rent review clause in your commercial lease agreement, you might negotiate to include a break clause so you can exit the lease if the proposed rent increase is too high. Most break dates will be set to occur after the date the review is to occur, but, as you will have a good idea of how RPI is trending, including a break is a good risk mitigation strategy to avoid a sharp rent increase.

Front page of publication
Cheatsheet for UK Leasing Terms

This cheatsheet includes practical tips to understand key clauses and avoid disputes in leasing agreements.

Download Now

Dispute Resolution

The lease usually includes a dispute resolution provision as part of the rent review clause. Typically, this will consist of appointing a surveyor to review any disagreement on the increased rent. Some leases can also state that the rent increase is at the landlord’s absolute discretion, in which case tenants are bound by the landlord’s assessment except where there is an error, or it is contrary to the law. 

Key Statistics

  1. 72%: Proportion of UK commercial leases incorporating RPI rent review clauses in 2024, reflecting continued indexation preference among landlords.
  2. 3.2%: Average annual rent increase delivered by RPI-linked reviews in 2025, per RICS market analysis.
  3. 18%: Rise in RPI rent review disputes due to inflation volatility, as reported in academic research.

Sources

  1. British Property Federation (Industry Body) (2025)
  2. Royal Institution of Chartered Surveyors (RICS – Industry Body) (2025)
  3. University of Cambridge – Department of Land Economy (Academia) (2024)

Key Takeaways

An RPI rent review is where your landlord reviews the rental amount you pay in line with the retail price index. The RPI is based on inflation, such as changes to the price of goods and services. As an outcome, your rental costs will change, and you will have to pay an increased cost. 

Before you commit to a lease with an RPI rent review, you should consider recent increases in inflation. Rapidly rising inflation will impact the rate at which your rental amount increases. Therefore, you might wish to negotiate a cap on the rental increase or negotiate the inclusion of a break clause.

If you need help understanding retail price index rent reviews as a commercial tenant, our experienced leasing lawyers can assist as part of our LegalVision membership. For a low monthly fee, you will have unlimited access to lawyers to answer your questions and draft and review your documents for a low monthly fee. Call us today on 0808 196 8584 or visit our membership page.

Frequently Asked Questions

What is a rent review?

A rent review is where a commercial landlord assesses the tenant’s rent and then adjusts it.

What is a retail price index rent review? 

A retail price index rent review is a type of rent review in which the landlord assesses the rent based on the retail price index (RPI).

Can a landlord decrease rent following an RPI rent review?

Typically, no. A rent review usually results in rent staying the same or increasing – it rarely decreases, even if inflation falls.

What is a rent review cap?

A cap limits how much your rent can increase during an RPI review, protecting you from sharp inflation-driven rises.

Register for our free webinars

Funding Your Startup: Pros and Cons of Venture Capital vs Debt

Online
Register for our free webinar to understand the key differences between venture capital and debt financing for your business.
Register Now

Social Media Compliance: Safeguard Your Brand and Avoid Common Pitfalls

Online
Learn how to protect your brand on social media, manage influencer risks, and avoid costly IP and compliance pitfalls.
Register Now

A Handshake Is Not Harmless: The Hidden Costs of Verbal Agreements

Online
Learn how verbal agreements create risk for your business and how to avoid the disputes that may arise from them. Register today.
Register Now

AI at Work: Privacy Risks That Could Expose Your Business

Online
AI tools bring new privacy, regulatory, and IP risks. Learn what to watch for and how to manage them.
Register Now
See more webinars >

Louise Robillard

Trainee Solicitor | View profile

Louise is a Trainee Solicitor in the Leasing and Franchising team. She graduated with a BA in Politics and International Relations from the University of Nottingham in 2022. More recently, she passed the SQE1 examinations and earned a Master of Arts in Law from the University of Law.

Read all articles by Louise

About LegalVision

LegalVision is an innovative commercial law firm that provides businesses with affordable, unlimited and ongoing legal assistance through our membership. We operate in Australia, the United Kingdom and New Zealand.

Learn more

LegalVision is an award-winning business law firm

  • Award

    2025 Future of Legal Services Innovation Finalist - Legal Innovation Awards

  • Award

    2024 Law Company of the Year Finalist - The Lawyer Awards

  • Award

    2024 Law Firm of the Year Finalist - Modern Law Private Client Awards

  • Award

    2023 Economic Innovator of the Year Finalist - The Spectator

  • Award

    2023 Law Company of the Year Finalist - The Lawyer Awards