What Is the Maximum a Landlord Can Increase Rent in England?

There is no fixed percentage cap on how much a private landlord can increase rent in England. No universal 3%, 5% or inflation-linked ceiling applies to every property.

That does not mean a landlord can raise the rent without constraint. Since the first phase of the Renters' Rights Act 2025 reforms took effect on 1 May 2026, most private landlords must use a prescribed statutory process to increase rent. The tenant may challenge the proposal, and the First-tier Tribunal will determine the open market rent if the application is made in time.

The practical answer is therefore simple but important:

A landlord may propose an increase, but the amount must be defensible against the open market and the correct statutory process must be followed.

For portfolio landlords, the strongest approach is not to choose a percentage first and justify it afterwards. It is to establish the property's supportable market position, check the tenancy and compliance records, and then serve the correct notice with evidence behind the decision.

This guide explains the current position for most private-sector assured periodic tenancies in England. Different rules apply to social housing, regulated tenancies, lodgers, holiday accommodation and properties in Wales, Scotland or Northern Ireland. Specialist advice should be taken where the tenancy type or jurisdiction is unclear.

The Maximum Rent Increase: No Fixed Cap, but a Market-Rent Test

Under current legislation, a landlord can propose a new rent without being restricted to a nationally prescribed percentage. However, the proposal can be referred by the tenant to the First-tier Tribunal (Property Chamber)

The tribunal assesses what the property might reasonably be expected to achieved on the open market under an equivalent assured tenancy with the same relevant terms. It considers the property itself, its condition, local amenities and evidence of rents for comparable homes.

Following a challenge to a rent increase, the rent set will be the lower of:

Tribunal outcome Rent that can take effect

The tribunal's open-market figure The tribunal's open-market figure

is lower than the landlord's proposal

The tribunal's open-market figure is The landlord's proposed figure

equal to or higher than the landlord's proposal

This means the tribunal cannot impose more than the landlord proposed. Equally, a landlord should not assume that the existing rent creates a guaranteed floor. If the evidence supports a lower open-market assessment, the statutory wording allows the tribunal's lower figure to apply.

That is why phrases such as "the legal maximum is 5%" are misleading. The real question is not whether an increase falls within an arbitrary percentage. It is whether the proposed rent is properly evidenced, locally supportable and procedurally valid.

What Does Open-Market Rent Mean?

Open-market rent is not simply the highest advertised figure found online. Asking rents are useful indicators, but they do not prove what tenants have actually agreed to pay.

A strong assessment compares genuinely similar homes and adjusts for material differences, including:

Evidence factor Questions to test

Location Is the comparable is the same micro-market, with similar transport, schools and amenities

Property type Is it a flat, terraced house, semi-detached home or HMO room on a comparable basis

Size and layout Are the bedroom count, floor area and usable living spaces similar?

Condition Is the property newly refurbished, dated, furnished or unfurnished?

Facilities Are parking, gardens, appliances, broadband, bills or communal services included?

Tenancy terms Are the strength, restrictions, inclusions and responsibilities materially comparable?

Evidence quality Is the figure an advertised asking rent or an agreed recent letting?

For landlords, this is a commercial discipline as much as a legal one. A rent set too low can erode income and weaken a portfolio's ability to absorb maintenance, finance and regulatory costs. A rent set too aggressively can increase challenge risk, damage the landlord-tenant relationship and create avoidable void or arrears exposure.

The strongest rent is not necessarily the highest figure that can be advertised. It is the highest figure that the property, evidence and tenant market can sustainably support.

The Renters' Right Act 2025: What Changed on 1 May 2026?

For 1 May 2026, most existing assured shorthold tenancies in England moved into the new assured periodic tenancy framework, and Section 21 was abolished for the private rented sector. The reforms also standardized the route for in-tenancy rent increases.

For most assured periodic tenancies, landlord must now:

1. use the prescribed FORM 4A under section 13 of the Housing Act 1988;

2. give the tenant at least two month's notice;

3. ensure the new rent begins at the start of a tenancy period;

4. avoid increasing rent during the first year of a new tenancy; and

5. increase the rent no more than once a year.

A rent review clauses is no longer an alternative method for implementing a new increase after 1 May 2026. Even where the landlord and tenant have discussed the proposal, the landlord should still complete the statutory Form 4A process.

The First-Year Restriction

A landlord cannot increase the rent during the first year of a new assured periodic tenancy under the post-reform process. This point matters where a property has recently been re-let, where a portfolio has changed manager or where records from the tenancy start are incomplete.

The operational answer is straightforward: maintain a reliable rent schedule showing the tenancy start date, current rent, last increase date, tenancy period and earliest lawful date for the next review.

Once-a-Year Does Not Always Mean the Same Calendar Date

Form 4A explains that, in most cases, at least 52 weeks must pass between increases. Because 52 weeks is shorter than a calendar year, there can be occasions when at least 53 weeks are needed to prevent the effective date moving earlier from year to year.

Landlords should therefore calculate the date from the statutory rules and tenancy periods rather than automatically repeating last year's calendar date.

How to Increase Rent Correctly Using Form 4A

A valid rent review is a process, not a message informing the tenant that the standing order will change.

Step 1: Confirm That the Rules Apply

Before service notice, establish the tenancy type, jurisdiction and contractual rent. The rules in this article are directed at most private-sector assured periodic tenancies in England. They should not be applied automatically to social housing, licenses, company lets, holiday accommodation or homes elsewhere in the UK.

Where the tenancy legal status is uncertain, obtain independent legal advice before acting.

Step 2: Establish a Defensible Market Rent

Build a short evidence file before selecting the proposed figure. Use several recent, genuinely comparable properties and record relevant differences. Where possible, prioritize evidence of agreed lettings over unsupported asking prices.

For a portfolio, adopt a consistent review template. It should record:

Review record Why it matters

Current and proposed monthly rent Show the cash and percentage movement clearly

Comparable properties Support the market rationale

Adjustments for condition and facilities Prevents superficial comparisons

Tenancy start and last increase dates Tests timing compliance

Proposed effective date Confirms alignment with a tenancy period

Affordability and payment history Informs commercial risk management

Approval and communication record Creates an auditable decision trail

The evidence does not guarantee a particular tribunal outcome. It does, however, make the decision more consistent, explainable and commercially credible.

Step 3: Complete the Current Form 4A

Use the current government-prescribed Form 4A, not the previous Form 4 and not a template letter downloaded from an unverified source.

The form must identify the parties and property, state the current and proposed rent, and specify the date on which the new rent is intended to begin. The date must satisfy the notice period and align with the beginning of a tenancy period.

Step 4: Give at Least Two Months' Notice

The tenant must receive at least two months' notice. Service can be affected by delivery time, so landlords should not leave the process to the last possible day.

Government guidance states that Form 4A may be served in person, by post or by email where the tenancy agreement permits email service. Keep evidence showing what was served, when, how and to whom.

Step 5: Communicate the Commercial Rationale

A clear covering message can reduce confusion and help preserve the relationship. It should explain that the rent has been reviewed against relevant local evidence, identify the proposed rent and start date, and invite the tenant to raise any factual concerns.

The communication must not pressure a tenant to surrender a statutory right to challenge the increase. A measured approach is more effective than presenting the decision as non-negotiable.

Can a Tenant Challenge a Rent Increase?

Yes. A tenant who believes the proposed rent exceeds the open-market level can apply to the First-tier Tribunal. The application must be made before the proposed start date in Form 4A.

As at July 2026, the application fee for this type of post-reform private-rent determination is £47, although fee support may be available to eligible applicants.

The tribunal may decide the case on the papers or arrange a hearing or inspection. Both parties can provide evidence. For landlords, a concise schedule of recent comparable lettings, photographs, property details and the relevant tenancy terms is more persuasive than a large collection of loosely related property adverts.

When Does the Tribunal-Determined Rent Start?

The position requires careful wording. It is not accurate to say simply that the proposed increase is backdate automatically, nor that the matter remains paused indefinitely without consequence.

Under the post-reform rules:

Timing of determination General effective-date position

The proposed Form 4A date is on or after The new rent can begin on the proposed date.

the tribunal's determination.

The proposed date has passed before the The new rent generally starts from the first

tribunal determines the case. tenancy period beginning on or after the determination.

The normal date would cause undue The tribunal may direct a later date within the

hardship to the tenant. statutory limit.

These rules mean that a landlord should not budget on the assumption that the proposed increase will necessarily apply from the original date if a challenge remains unresolved.

How Much Are Rents Rising in 2026?

The latest official data available when this article was prepared were published by the Office for National Statistics on 17 June 2026. They show that the average monthly private rent in England was £1,442 in May 2026, up 3.4% over the year. Regional annual growth ranged from 2.0% in London to 5.9% in the North East.

Those figures provide useful context, but they are not a rent-setting formula. The ONS Price

Index of Private Rents covers new and existing tenancies and represents broad market movement. It does not establish the correct increase for an individual flat, house or HMO room.

A property may support more or less than the national rate because its existing rent is

below or above the local market, because it has been improved, or because local supply

and demand differ sharply from the national picture. Conversely, several years without a

review do not create an automatic right to recover every missed increase in one step.

Why Blanket Percentage Policies Create Risk

A portfolio-wide instruction to “increase every rent by 5%” may look efficient, but it can produce inconsistent results. One property may remain under-rented after the increase, while another may move above comparable market evidence.

A better policy is to segment the portfolio:

Portfolio position Strategic response

Rent is materially below evidenced Consider a phased or full review, subject to

market level. affordability, timing and evidence.

Rent is broadly at market level. Consider a modest adjustment or no change,

based on local movement and tenant risk.

Rent is above supportable market Do not increase automatically; reassess pricing

evidence. and retention strategy.

Property has unresolved condition or Resolve the underlying issues before treating a

service issues. rent increase as routine.

Evidence is weak or comparables are Obtain a professional rental assessment before

inconsistent. serving notice.

This approach protects income without treating every tenancy as identical.

A Strategic Rent Review Is More Than a Compliance Exercise

Rent is one part of a wider operating model. Before increasing it, landlords should consider

whether the property remains safe, well maintained and supported by complete records. A technically correct Form 4A does not cure unrelated failures concerning repairs, licensing, deposit protection, gas or electrical safety, Right to Rent, or other applicable duties.

The end of Section 21 also makes disciplined management more important. Where possession may later be required, landlords will generally need to rely on the relevant statutory route and evidence under the reformed framework rather than a no-fault Section

21 notice.

For professional landlords, this creates a clear strategic priority: make rent reviews part of

an auditable annual asset-management process. Pricing, compliance, tenant communication, maintenance planning and cash-flow forecasting should be reviewed together rather than in separate silos.

The Difference Between an Amateur and a Professional Rent Review

An amateur review starts with a desired percentage. A professional review starts with evidence.

An amateur review serves a notice and hopes it is correct. A professional review checks the tenancy period, prescribed form, service method and effective date before sending anything.

An amateur review focuses only on additional monthly income. A professional review also assesses challenge risk, tenant retention, arrears exposure, upcoming works and the property’s long-term position.

That difference is not bureaucracy. It is better portfolio control.

Landlord Rent Increase Checklist for England

Before proposing a new rent, confirm each of the following:

Compliance and strategy check Confirmed?

The arrangement is an assured periodic tenancy in ☐

England to which the section 13 process applies.

The tenancy has passed its first year. ☐

No increase has taken effect within the relevant ☐

annual period.

The proposed figure is supported by current, relevant ☐

comparables.

Differences in condition, size, facilities and tenancy ☐

terms have been assessed.

The current Form 4A has been completed accurately. ☐

At least two months’ notice will be received by the

tenant.

The proposed date is the beginning of a tenancy period. ☐

The service method is permitted and evidence of service ☐

will be retained.

The tenant communication is clear, measured and ☐

non-pressuring.

The cash-flow forecast allows for a possible tribunal ☐

timetable and outcome.

Independent legal, tax or financial advice has ☐

been obtained where required.

Frequently Asked Questions About Maximum Rent Increases

Q: Is there a 5% cap on rent increases in England?

A: No. Under current legislation, there is no universal 5% cap for most private assured periodic tenancies in England. The proposed rent may be challenged, and the tribunal can assess the open-market rent. A local average or inflation figure is context, not a legal ceiling.

Q: Can a landlord double the rent?

A: A landlord can state a large proposed increase, but that does not make it commercially sensible or immune from challenge. The landlord must follow the Form 4A process, and the tenant can apply to the tribunal before the proposed start date. A sharp increase will require particularly strong evidence that the resulting rent is supportable in the open market

Q: Can rent be increased during the first year of a tenancy?

A: For the assured periodic tenancies covered by the post-1 May 2026 rules, the landlord cannot increase rent during the first year of a new tenancy.

Q: How often can a landlord increase rent?

A: For most assured periodic tenancies in England under the new framework, rent can be increased no more than once a year. Timing must also comply with the detailed rules in At least two months’ notice will be received

Q: How much notice must a landlord give?

A: At least two months’ notice must be given using the current Form 4A. The proposed date

must also be the start of a tenancy period.

Q: Can a landlord increase rent by email?

A: The statutory notice may be served by email if the tenancy agreement permits email service. The landlord should use the current Form 4A and keep evidence of delivery. A casual email stating a new figure is not a substitute for the prescribed process.

Q: Can the tribunal set a rent higher than the landlord proposed?

A: No. Following a challenge to a Form 4A increase, the payable figure is capped at the amount proposed by the landlord. If the tribunal’s open-market assessment is lower, the lower figure applies.

Q: Can the tribunal set a rent below the existing rent?

A: The statutory formula applies the tribunal’s open-market figure where it is lower than the proposed rent. The legislation does not preserve the existing rent as an absolute floor for a challenge to a proposed increase. Specific cases should be discussed with an independent

housing solicitor.

Q: Does a tenant have to keep paying the current rent during a challenge?

A: The tenant should continue paying the rent lawfully due while the application is being determined. The effective date of any tribunal-determined rent depends on the statutory timing rules and the tribunal’s decision. Neither party should assume an informal outcome.

Q: Do these rules apply to Wales, Scotland and Northern Ireland?

A: No. Housing law is devolved, and each UK nation has its own framework. This article is limited to England. Landlords operating across borders should use jurisdiction-specific documents and advice.

Plan the Rent Review Before You Serve the Notice

A compliant rent review should protect the value of the property while supporting a stable, professional tenancy. That requires more than selecting a percentage. It requires good evidence, accurate records, correct notice, realistic financial modelling and clear communication.

If you would like to explore how the current rent-increase rules apply across your portfolio,our team can help you review the operational process, evidence base and management strategy. We provide practical guidance and portfolio insight; where legal, tax or financial advice is required, we will always recommend that you instruct an appropriately qualified independent adviser.

Speak with our team on WhatsApp: +44 330 341 3063

Visit: comfortandco.uk

Professional disclaimer: This article provides general guidance only and is not legal, tax or financial advice. It is based on the England position and guidance available in July 2026. Legislation, prescribed forms, fees and official guidance may change. Always seek independent legal, tax or financial advice before making decisions affecting your property, tenancy or business. Essential Management Ltd, Stay & Co and associated brands accept no responsibility for decisions taken solely in reliance on this article.