Receiving a letter from your landlord proposing a rent increase can be stressful. But how much can a landlord increase rent, and is there a limit?
Since the Renters’ Rights Act 2025 came into force on 1 May 2026, the rules around rent increases have changed significantly in favour of tenants. This guide explains exactly what the law says, what the most a landlord can raise rent is, and what you can do if you think a proposed increase is unfair.
How Much Can a Landlord Increase Rent in England?
There is no fixed percentage cap on how much a landlord can increase rent in England. However, the law places important restrictions on both how often a rent increase can happen and what the maximum amount of any increase can be.
Under the Renters’ Rights Act 2025 and the process set out in Section 13 of the Housing Act 1988, a rent increase must not exceed the open market rent for the property. This means the most a landlord can raise rent is to a level that reflects what a comparable property in the same area would realistically achieve on the open market at that time.
There is no legal percentage cap on rent increases in England. However, any increase must be no higher than the open market rent for your property. If your landlord proposes an increase above market rate, you have the right to challenge it.
What Is the Most a Landlord Can Raise Rent?
The most a landlord can raise rent is to the prevailing open market rent for a comparable property in the same area. This is the legal ceiling set by the Renters’ Rights Act 2025. In practice, this means:
- Your landlord cannot increase your rent to a level significantly above what similar properties nearby are being let for
- If your current rent is already at or above market rate, your landlord has limited grounds to justify a large increase
- If the proposed new rent is higher than open market rent, you can challenge it at the First-tier Tribunal, which will assess what the market rate actually is and set a fair rent accordingly
The First-tier Tribunal will look at evidence such as local comparable rental prices, the condition and size of the property, and current market conditions when determining whether a proposed increase is reasonable.
How Often Can a Landlord Increase Rent?
Since 1 May 2026, landlords in England can only increase rent once in any 12-month period. This applies to all private assured tenancies, which are now rolling contracts under the Renters’ Rights Act.
Before this change, some landlords used rent review clauses written into tenancy agreements to increase rent more frequently or by amounts set in advance. Those clauses can no longer be used. The only lawful mechanism for increasing rent on a private tenancy in England is the formal Section 13 process.
Rent review clauses in tenancy agreements are no longer enforceable from 1 May 2026. Your landlord must use the Section 13 process and can only raise your rent once per year.
How Must a Landlord Notify You of a Rent Increase?
A landlord cannot simply tell you verbally that your rent is going up. Under Section 13 of the Housing Act 1988, a landlord must give you written notice of any proposed rent increase using the official Form 4A. This form must be served at least 2 months before the proposed increase is due to take effect. You can download Form 4A from GOV.UK.
The notice must state:
- The proposed new rent amount
- The date from which the new rent would apply
- Your right to challenge the increase at the First-tier Tribunal if you disagree
If your landlord attempts to increase your rent without following this process, the increase is not legally valid. You are not obliged to pay the higher amount until a valid Section 13 notice has been served and the notice period has passed.
What Happens If You Disagree With a Rent Increase?
If you receive a Section 13 notice and believe the proposed rent increase is above the open market rate, you have the right to challenge it at the First-tier Tribunal (Property Chamber). This is a formal but free process, and you do not need a solicitor to use it.
How to Challenge a Rent Increase
To challenge a proposed rent increase, you must apply to the First-tier Tribunal before the date the new rent is due to take effect. You can apply online or by post. More information about how to apply is available on GOV.UK.
When assessing your challenge, the tribunal will consider:
- The current open market rent for comparable properties in your area
- The size, condition, and location of your property
- Any recent improvements made by the landlord that may justify a higher rent
- Current local and national rental market conditions
The tribunal can confirm the proposed rent, reduce it to a level it considers fair, or in some cases set a rent lower than what you are currently paying if it finds the existing rent is above market rate. The tribunal’s decision is legally binding on both you and your landlord.
Applying to the First-tier Tribunal to challenge a rent increase is free of charge. You do not need a solicitor. The process is designed to be accessible to tenants acting on their own behalf.
What Happens While Your Challenge Is Being Heard?
If you apply to the First-tier Tribunal to challenge a rent increase, you should continue paying your current rent while the case is being decided. Do not withhold rent during this period, as doing so could put you at risk of rent arrears proceedings. Once the tribunal reaches a decision, the new rent level (whether higher, lower, or the same as currently proposed) will apply from the date specified in the tribunal’s determination.
Can a Landlord Increase Rent During a Fixed Term?
Fixed-term tenancies no longer exist in England as of 1 May 2026 under the Renters’ Rights Act. All private assured tenancies are now rolling periodic tenancies.
Before this change, landlords generally could not increase rent during a fixed term unless the tenancy agreement contained a specific rent review clause allowing it. Those clauses are now unenforceable in any case. Going forward, rent increases can only happen once per year through the Section 13 process, regardless of the type of tenancy.
Can a Landlord Increase Rent Between Tenancies?
When a tenancy ends and a new tenancy begins with a different tenant, the landlord is free to set the rent at whatever level they choose, subject to market conditions. The restrictions on frequency and process that apply under Section 13 only apply during an ongoing tenancy.
This means that while existing tenants are protected against excessive rent increases during their tenancy, a landlord may set a higher starting rent when re-letting a property to a new tenant. This is why the open market rent is the relevant benchmark for tribunal challenges: it reflects what a landlord could realistically charge a new tenant on the open market.
Rent Increases and Universal Credit
If you receive Universal Credit or Housing Benefit to help cover your rent, a rent increase may affect how much financial support you receive. The Local Housing Allowance (LHA) sets limits on how much housing support is available in different areas. If your new rent exceeds the LHA rate for your area, you may face a shortfall. You can check current LHA rates on GOV.UK or contact your local council for advice.
If you are struggling to afford a rent increase, contact Citizens Advice or your local council as early as possible. There may be discretionary housing payments or other forms of support available to help bridge a shortfall.
What If a Landlord Tries to Increase Rent Informally?
Some landlords may attempt to raise rent without following the correct legal process, for example by simply sending a text message or email saying rent is going up from next month. This is not a valid rent increase under English law.
If your landlord attempts an informal rent increase, you should:
- Not agree to pay the higher amount without a valid Section 13 notice served on Form 4A
- Write to your landlord explaining that any rent increase must follow the Section 13 process
- Continue paying your current rent until a valid notice has been served and the notice period has passed
- Seek advice from Citizens Advice or Shelter if your landlord persists or threatens action
Paying a higher rent without a valid notice being served does not prevent you from later disputing whether the increase was lawful, but it can complicate matters. It is always better to address the issue before agreeing to pay more.
Rent Increases and Retaliatory Eviction
It is unlawful for a landlord to attempt to evict you in response to you exercising your legal rights, including challenging a rent increase at the First-tier Tribunal. This is known as retaliatory eviction, and the law provides protection against it.
Under the Renters’ Rights Act, landlords cannot use a Section 21 notice at all, which removes the most common tool previously used for retaliatory eviction. If you feel your landlord is attempting to evict you because you challenged a rent increase or exercised another legal right, seek advice from Shelter or Citizens Advice immediately.
How Much Can a Landlord Increase Rent: Key Facts at a Glance
- There is no fixed percentage cap on rent increases in England
- The most a landlord can raise rent is to the open market rent for a comparable property
- Landlords can only increase rent once in any 12-month period
- All rent increases must be notified using Form 4A with at least 2 months’ written notice
- Rent review clauses in tenancy agreements are no longer enforceable from May 2026
- Tenants can challenge any increase they consider above market rate at the First-tier Tribunal for free
- The tribunal’s decision on rent is legally binding on both parties
- Retaliatory eviction for challenging a rent increase is unlawful
Where to Get Help
If you have received a rent increase notice and are unsure what to do, the following free resources can help:
- GOV.UK private renting guidance: https://www.gov.uk/private-renting
- First-tier Tribunal (Property Chamber): https://www.gov.uk/housing-tribunal
- Shelter England (free housing advice): https://england.shelter.org.uk
- Citizens Advice (free legal and financial guidance): https://www.citizensadvice.org.uk
Final Thoughts
How much can a landlord increase rent? The honest answer is that there is no fixed cap in England, but the law provides meaningful protection. Any increase must reflect open market rent, can only happen once a year, and must follow the correct formal process. If you believe your landlord is proposing an increase that is above market rate or has not followed the correct procedure, you have clear legal rights and free routes to challenge it.
Knowing what the most a landlord can raise rent is, and understanding the process you are entitled to, puts you in a much stronger position to respond confidently when a rent increase notice arrives.
Received a rent increase notice and not sure what to do?
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