Landlords often ask: how much can a landlord raise rent in the UK? The answer is not always straightforward. While there is flexibility around the amount of a rent increase, there are now stricter legal rules and procedural requirements governing how increases must be carried out.

If you are considering a rent increase, it is important to understand both your rights and your obligations. Getting it wrong can lead to disputes, delays, or even an invalid increase.

At Burt Brill & Cardens, we advise landlords on how much rent can reasonably be increased and how to implement increases correctly using the current Section 13 procedure, minimising risk and ensuring compliance with current legislation.

How Much Can Rent Be Increased By?

The key question many landlords ask is: Is there a limit to how much a landlord can raise your rent?

The short answer: There is no fixed legal cap on rent increases for most private tenancies in England.

However, this does not mean landlords have unlimited discretion. While landlords can propose a market rent increase, there are strict legal procedures that must be followed and tenants retain the right to challenge increases they believe exceed the market rate.

What Does “Reasonable” Actually Mean?

Even though there is no set maximum, rent increases must still meet certain expectations. In practice, this means they should be:

Fair and realistic — not excessive or arbitrary

In line with market rates — comparable to similar properties in the same area

Supported by evidence — such as local listings or recent lettings

Carried out using the correct legal process — as rent increases must now be implemented using a Section 13 notice.

For most private residential tenancies, landlords can technically propose any increase, provided the increase is implemented through the Section 13 process and complies with the current statutory requirements.

Can a Landlord Increase the Rent by Any Amount?

Legally, yes — but practically, no.

This is where many landlords misunderstand the rules. While there is no statutory limit, there is an effective “market cap” created by:

The tenant’s right to challenge the increase
First-tier Tribunal oversight
Local rental market values.

If a landlord proposes a figure significantly above the market rate, it is unlikely to be upheld if challenged.

What Happens If the Tenant Thinks the Increase Is Too High?

Tenants have the right to challenge a proposed rent increase by applying to the First-tier Tribunal (Property Chamber).

The Tribunal will assess:

What similar properties in the area are renting for
The condition and features of the property
Whether the proposed rent reflects current market conditions.

If the Tribunal finds the increase excessive, it can set a lower rent, which then becomes legally binding.

What Should You Consider Before Increasing Your Tenant’s Rent?

Before deciding how much to raise the rent, ensure the proposed increase can be clearly justified. This becomes particularly important because rent increases must now be carried out using the formal Section 13 procedure.

A well-reasoned approach not only reduces the risk of disputes but also strengthens your position if the tenant challenges the increase before the First-tier Tribunal (Property Chamber).

Before serving a Section 13 notice, landlords should carefully consider whether the proposed increase reflects the current market rate and can be supported with evidence.

Key Factors to Consider

1. Local rental market values

The most important benchmark is what similar properties are currently achieving in your area. This includes:

Comparable properties of a similar size and type
Properties in the same neighbourhood or postcode
Recently agreed rents, not just advertised prices.

If your proposed increase significantly exceeds local market rates, it is more likely to be challenged.

2. Property size and condition

The condition of the property plays a major role in determining whether an increase is reasonable.

Consider:

Has the property been recently renovated or improved?
Is it well-maintained and in good repair?
Are there any outstanding issues that could affect value?

A higher-quality property can justify a higher rent — but only if that quality is evident.

3. Fixtures, fittings, and appliances

Modern, well-maintained features can support a rent increase, while outdated or poorly maintained ones may limit what is reasonable.

For example:

New kitchens, bathrooms, or flooring
Energy-efficient appliances
Furnished vs unfurnished arrangements.

If little has changed since the tenancy began, a significant increase may be harder to justify.

4. Location and amenities

Location remains one of the strongest drivers of rental value.

Take into account:

Proximity to public transport (stations, bus routes)
Access to schools, shops, and local services
Desirability of the neighbourhood.

Even small differences in location can have a noticeable impact on what is considered a reasonable rent.

5. Demand in the area

Rental demand can fluctuate with broader market conditions.

Higher demand may support an increase where:

There is a limited housing supply
Properties are letting quickly
The area is growing in popularity.

However, if demand has softened, pushing through a large increase may lead to vacancies or disputes.

6. Tenant relationship and history

Although not strictly a legal factor, it is often a practical one.

Consider:

Has the tenant paid rent reliably?
Have they looked after the property?
Would losing them create additional costs (void periods, re-letting fees)?

Sometimes, a modest increase is more beneficial than risking a good tenant leaving.

What Are Not Valid Reasons for Increasing Rent?

While there is no strict cap on how much a landlord can increase rent, proposed increases should still reflect the local market rate and be capable of justification if challenged.

Understanding what is unlikely to justify a substantial rent increase is just as important as knowing what factors may support one.

Rent Increases Based on Arbitrary Decisions

A landlord should not increase rent simply because they:

“Feel” the property is worth more
Want to meet a personal financial target
Have not reviewed the rent for several years and wish to impose a large increase all at once.

Without evidence to support the proposed increase, it is more likely to be challenged before the First-tier Tribunal.

Increases Significantly Above Market Value

One of the most common mistakes is proposing a rent increase that exceeds local market rates.

For example:

Increasing rent well beyond comparable properties nearby
Ignoring current rental trends in the area
Attempting to “test” the maximum a tenant might pay.

If challenged, the First-tier Tribunal will assess market value — not the landlord’s personal expectations.

Covering Unrelated Personal Costs

Landlords sometimes attempt to increase rent to cover rising personal or financial commitments, such as:

Mortgage increases or interest rate changes
Personal debts or financial pressures
Increased costs unrelated to the property itself.

While these pressures are understandable, the Tribunal’s focus will generally remain on the market rent for the property.

Penalising or Pressuring a Tenant

Rent should never be increased as a way to:

Encourage a tenant to leave
Respond to a disagreement or complaint
Penalise late payments or minor breaches.

Using rent increases in this way may not only be challenged but could also lead to wider legal issues.

Increases Without Any Change in Circumstances

If:

The property condition has not improved
The local rental market has remained stable
There have been no upgrades or added features

a significant increase may be more difficult to justify.

While rent can still be adjusted to reflect market conditions, large or sudden increases without supporting evidence are more likely to be challenged.

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How Can I Raise Rent Legally Using a Section 13 (S13) Notice?

Under the Renters Reform changes, all rent increases for private residential tenancies must now be carried out using a Section 13 notice. Landlords can no longer rely on rent review clauses within tenancy agreements to increase rent.

A Section 13 notice (Form 4 under the Housing Act 1988) is the formal method for proposing a new rent.

Key requirements for a valid Section 13 Notice:

It can only be used once every 12 months
Landlords must give tenants a minimum of two months’ notice
The correct prescribed form must be used.

If the process is not followed precisely, the notice may be invalid.

This is one of the most common areas where landlords make mistakes — and where legal support can make a real difference.

Does Section 13 Apply to All Types of Tenancies?

No — a Section 13 rent increase does not apply in every situation.

It does NOT apply to:

Regulated tenancies (generally pre-1989, governed by the Rent Act 1977)
Commercial tenancies, where the lease agreement dictates rent increases.
Tenancies in Scotland or Wales, where different rules apply.

The current requirement to use Section 13 notices for rent increases applies to private residential tenancies in England.

If you are unsure which rules apply to your tenancy, it is important to check before taking action. Serving the wrong type of notice can delay your ability to increase rent.

How Much Notice Must I Give My Tenant?

When planning a Section 13 rent increase, one of the most important legal requirements is providing the correct amount of notice.

Under the current rules, landlords must give tenants at least two months’ notice before the proposed rent increase can take effect.

This is the legal minimum — and it must be calculated carefully. Getting the timing wrong is one of the most common reasons a section 13 rent increase is deemed invalid.

When Does the Notice Period Start and End?

The notice period begins when the tenant is deemed to have received the notice, not when it is sent.

Landlords must ensure that:

The tenant is given at least the required minimum notice period
The proposed new rent does not take effect until the notice period has fully expired
The notice has been completed and served correctly.

Incorrect dates or procedural errors can invalidate the notice.

What Makes a Notice Valid?

To successfully increase rent, the notice must meet strict legal requirements. It must:

Be served correctly (for example, in accordance with the tenancy agreement or accepted legal methods)
Use the correct prescribed form (Form 4 for a Section 13 rent increase)
Clearly state the proposed new rent and the date it will take effect
Provide the correct minimum notice period
Comply with the current statutory requirements for Section 13 notices.

Failure to meet these requirements can render the notice invalid.

Common Mistakes Landlords Make

Many landlords underestimate how technical the Section 13 process can be. Common errors include:

Giving insufficient notice
Miscalculating the notice period
Using incorrect dates for the proposed rent increase
Serving the notice incorrectly (for example, using the wrong address or method of service)
Failing to use the correct prescribed Section 13 form
Attempting to increase rent more than once within a 12-month period.

Even small technical errors can invalidate the notice, meaning you may have to restart the process — delaying your ability to increase rent.

By using Burt Brill & Cardens to review, draft, or serve your notice (or all three), you can be confident that your rent increase notice is legally compliant and far less likely to be challenged — saving you the time, cost, and stress of tribunal disputes or having to re-serve notices due to technical errors.

Can the Rent be Increased in a Fixed-Term Tenancy?

Under the Renters Reform changes, rent review clauses can no longer be used to increase rent during a tenancy.

This means landlords cannot rely on contractual rent increase clauses within tenancy agreements. Instead, any rent increase must be carried out using the statutory Section 13 procedure.

How Can Rent Now Be Increased?

A landlord may only increase rent by:

Serving a valid Section 13 notice
Giving the tenant at least two months’ notice
Ensuring no Section 13 notice has been served within the previous 12 months.

Can the Tenant Still Agree to an Increase?

Yes. A landlord and tenant can still mutually agree to a higher rent in writing.

However, where a landlord wishes to formally impose a rent increase, the correct legal route is now the Section 13 process.

What if the Tenant Does Not Agree?

If the tenant does not agree with the proposed increase, they may challenge it through the First-tier Tribunal (Property Chamber), which will assess whether the proposed rent reflects the market rate for similar properties.

Why Use a Solicitor for a Section 13 Notice?

Many landlords ask whether they really need legal support for a Section 13 rent increase. While it is possible to serve a notice yourself, the process is far more technical than it first appears.

Even a small error can invalidate the notice — meaning the rent increase cannot be enforced, and you may have to start the process again from the beginning.

This can result in lost rental income, delays of several months, and unnecessary frustration.

How a Solicitor Adds Value

Instructing a solicitor is not just about avoiding mistakes — it is about ensuring the process is handled efficiently, professionally, and with minimal risk.

By instructing Burt Brill & Cardens, you benefit from:

Professional guidance
Clear advice on how much a landlord can increase rent and whether your proposed increase is reasonable
Accurate drafting and service
We ensure your Section 13 rent increase is correctly prepared, compliant, and served in line with legal requirements.
Reduced risk of disputes
A properly prepared notice is far less likely to be challenged by a tenant or scrutinised at Tribunal.
Time and cost savings
Avoid costly delays, repeated notices, and lost rental income caused by avoidable errors.
Peace of mind
Confidence that the process has been handled correctly from start to finish.

Summary

There is no fixed legal cap on how much rent can be increased by.
Any rental increases must still be reasonable and reflect local market conditions.
All rent increases must now be carried out using a Section 13 notice.
Landlords must give tenants a minimum of two months’ notice.
A Section 13 notice can only be served once every 12 months.
Rent review clauses can no longer be used to increase rent.
Several key legal requirements must still be followed for a Section 13 notice to be valid.
Section 13 does not apply to regulated tenancies or commercial tenancies.

If you are a landlord looking for advice on rental increases or any landlord and tenant dispute, contact our experienced team today on 01273 604123, via email at enquire@bbc-law.co.uk, or make an enquiry for expert guidance.

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