Rent Increase Myths Debunked: Why Confident Landlords Still Win Under the Renters’ Rights Act

A common myth circulating within the UK private rented sector is that landlords can no longer raise rent in any meaningful way. That is simply not true. Another pervasive myth is that if a tenant challenges a rent increase, the landlord automatically loses. That is not true either. What truly matters under the evolving legislative landscape—including the Renters’ Rights Act 2025—is whether the rent increase is supported by robust evidence, aligned with statutory rules, and handled through the correct legal process.

As the property market adapts to the abolition of Section 21 and the transition to Assured Periodic Tenancies, landlords must shift their approach. The rules have changed, but the fundamental right to achieve a fair market rent remains intact. This article debunks the most common rent increase myths and explains why confident, well-prepared landlords continue to protect their investments and thrive.

The Myths: What Landlords Believe About Rent Increases

There are two common myths about rent increases under the new regulatory framework. Both are fundamentally flawed. Both create unnecessary anxiety. Most importantly, both prevent landlords from effectively managing their portfolios and protecting their rental income.

Myth 1: Landlords Can No Longer Raise Rent in Any Meaningful Way

The myth: The introduction of the Renters’ Rights Act means landlords are entirely restricted from raising rent. Rent increases are now practically impossible, leaving landlords powerless against rising operational costs and inflation.

The reality: Landlords can still raise rent. Meaningful rent increases are still entirely possible, and landlords retain the authority to manage their investments. What has changed is the process required to implement these increases, not the underlying right to do so.

Myth 2: If a Tenant Challenges the Increase, the Landlord Automatically Loses

The myth: If a tenant disputes a rent increase through the First-tier Tribunal, the landlord is guaranteed to lose. The system is entirely weighted in favour of tenants, offering landlords no protection whatsoever.

The reality: If a rent increase is supported by solid market evidence, the landlord is in a strong position. If the statutory process is followed correctly, the landlord’s case is highly defensible. When an increase reflects genuine open market rent, the tribunal system provides a fair assessment, and prepared landlords frequently secure positive outcomes.

The Truth: What Actually Changed Under the Renters’ Rights Act

To understand why these myths are misleading, we must examine what has actually changed within the UK property sector. The Renters’ Rights Act 2025 introduces significant reforms, but it does not strip landlords of their commercial rights.

What Changed: The Statutory Process

The fundamental shift lies in the procedure for implementing a rent increase. Contractual rent review clauses (such as fixed percentage uplifts or RPI-linked reviews) are abolished for assured tenancies. All rent increases must now follow a formal statutory route.

The Old Process (Pre-Reform):

• Landlord decides to raise the rent based on internal calculations.

• Landlord informs the tenant, often informally or via a contractual clause.

• Tenant either accepts the new rent or chooses to vacate the property.

• The process was generally simple, quick, and highly flexible.

The New Process (Under the Renters’ Rights Act):

• Landlord must conduct thorough market research to determine the open market rent.

• Landlord must complete the prescribed statutory form (Form 4A) for a Section 13 notice.

• Landlord must serve the notice correctly, providing at least two months’ notice.

• Rent can only be increased once every 12 months.

• The tenant has the statutory right to challenge the increase at the First-tier Tribunal if they believe it exceeds market rates.

• The process is formal, heavily documented, and strictly evidence-based.

What Didn't Change: The Fundamental Right

What has not changed is the landlord’s right to seek a fair return on their investment.

Landlords can still raise rent to reflect current market conditions.

Landlord rights that remain firmly in place:

• The right to raise rent annually (subject to the 12-month restriction).

• The right to align rent with the current open market rate.

• The right to enforce a valid, evidence-based rent increase.

• The right to regain possession using strengthened Section 8 grounds if a tenant falls into significant rent arrears (e.g., mandatory Ground 8 now requires three months' arrears for monthly tenancies).

What Improved: Protection Through Compliance

While the new system requires more administrative rigour, it actually improves protection for landlords who operate professionally. If you follow the correct statutory process, your position is legally robust.

Protections for landlords who follow the correct process:

• An evidence-based rent increase is highly defensible at a tribunal.

• A properly served Section 13 notice is legally valid and enforceable.

• A documented, transparent process protects the landlord against claims of unfair practice.

• The First-tier Tribunal assesses cases based on open market rent; landlords who provide compelling comparable evidence are well-positioned for a favourable ruling.

Debunking Myth 1: Landlords Can Still Raise Rent Meaningfully

Let us thoroughly debunk the first myth. Landlords can still raise rent, and they can do so

meaningfully. The key is ensuring that the increase is justified by the local market.

The Evidence: What Professional Landlords Are Achieving

Professional landlords across the private rented sector, HMOs, and even serviced accommodation transitioning to long-term lets are still achieving significant, justified rent increases. They are protecting their yields by aligning their properties with current market dynamics.

Examples of strategic rent adjustments:

• Market-Aligned Adjustments: A property previously let at £1,500 per month may now command £1,750 on the open market. By serving a proper Section 13 notice supported by local comparables, the landlord can achieve a £250 (16.7%) increase. If the tenant accepts, the yield is protected.

• Inflation-Reflective Adjustments: While automatic inflation-linked clauses are banned, landlords can still propose increases that reflect broader economic conditions, provided the new figure does not exceed the open market rent. A 5% increase on a £2,000 per month property (£100) is often accepted without dispute when

communicated clearly.

• Significant Market Corrections: In areas with high demand and constrained supply, market rents have surged. A property let at £1,200 may now be worth £1,450. A properly evidenced notice for a £250 (20.8%) increase is legally sound. Even if the tenant chooses to relocate, the landlord can re-let the property at the new market rate.

The Key: An Evidence-Based Strategy

The cornerstone of a successful rent increase under the new regime is evidence. If your proposed rent is supported by robust data, you can raise the rent meaningfully and confidently.

Evidence required to support meaningful increases:

• Comprehensive market research demonstrating higher average rents in the immediate area.

• Specific comparable properties (similar size, condition, and location) currently advertised or recently let at higher rates.

• Data from credible rental indices showing regional market movement.

• Professional valuations or appraisals from experienced letting agents.

Strategic Considerations for Increases:

• Market-supported increases: 10-20%+ is possible if the property has been historically under-rented and the local market has moved significantly.

• Standard adjustments: 5-10% is typical for properties keeping pace with annual market growth.

• Excessive increases: Proposing a 20%+ increase without solid comparable evidence is highly risky and likely to be reduced by a tribunal.

The Reality: Strategic Growth is Still Possible

The reality is unequivocal: meaningful rent increases are still entirely possible. Landlords who prepare meticulously, research their local market, and adhere strictly to the Section 13 process can continue to achieve significant, compliant revenue growth.

Debunking Myth 2: Landlords Do Not Automatically Lose if Challenged

Let us dismantle the second myth. If a tenant challenges a rent increase at the First-tier Tribunal, the landlord does not automatically lose. In fact, the tribunal’s role is simply to determine the open market rent. A prepared landlord with strong evidence is highly likely to succeed.

The Evidence: Tribunal Outcomes

When tenants challenge rent increases, the outcome hinges entirely on the quality of the evidence presented. The tribunal does not exist to punish landlords; it exists to ensure fairness based on market reality.

Typical Tribunal Scenarios:

• Scenario 1: The Prepared Landlord. The landlord provides detailed market research, specific comparable properties, and proof of a correctly served Section 13 notice. The tribunal assesses the evidence and confirms the rent increase aligns with the open market. The landlord wins.

• Scenario 2: The Unprepared Landlord. The landlord proposes a large increase but provides no market research, no comparables, and relies on a flawed notice. The tribunal has no evidence to support the higher figure and reduces the rent. The landlord loses.

• Scenario 3: The Negotiated Settlement. The landlord serves a valid notice with good evidence. The tenant objects initially, but upon seeing the comparables, both parties agree to a negotiated lower rent before reaching the tribunal. This saves time and secures a reasonable increase.

The Key: Evidence Wins Disputes

The determining factor in any rent dispute is evidence. If you have compelling data, your position is secure. If you rely on guesswork or arbitrary percentages, your position is vulnerable.

Evidence that secures favourable outcomes:

• Market research: Must be specific, documented, and recent.

• Comparable properties: Must be genuinely similar, located nearby, and reflect current market conditions.

• Rental indices: Must be from official, credible sources.

• Documented process: Must include a valid Form 4A, proper notice periods, and clear, professional communication with the tenant.

The Reality: Preparation Dictates the Outcome

Landlords win rent increase disputes when they are prepared. They lose when they are not. The outcome is dictated by the quality of the landlord's preparation and evidence, not by an inherent bias in the new legislation.

The Principle: Better Process Equals Better Protection

The Renters’ Rights Act does not weaken professional landlords; it strengthens them by weeding out poor practices. Embracing a better process directly translates to better protection for your portfolio.

Why Better Process Means Better Protection

A rigorous process generates comprehensive documentation. Comprehensive documentation provides irrefutable evidence. Irrefutable evidence guarantees legal and financial protection.

The Compliance Chain: Process → Documentation → Evidence → Protection

When you follow the correct statutory steps, you automatically create the documentation

required to defend your position.

What a Robust Process Protects

Implementing a professional rent review strategy protects your business on multiple fronts:

• Defensibility: Your rent increase is logically sound. You can clearly explain your reasoning, present your evidence, and justify your commercial decision to both the tenant and a tribunal.

• Enforceability: Your Section 13 notice is legally valid. The increase is enforceable under the law, and your administrative process is beyond reproach.

• Dispute Resolution: If a tenant challenges the increase, you possess the necessary evidence to prevail at a tribunal. If enforcement action (such as a Section 8 notice for arrears) becomes necessary, your paperwork is flawless.

• Operational Confidence: You operate with the certainty that you are fully compliant with UK legislation. You can manage your portfolio decisively, knowing your income is protected.

The Strategy: How Confident Landlords Execute Rent Increases

Confident, successful landlords do not rely on luck or outdated methods. They follow a strategic, evidence-based approach. They understand their market, execute the correct legal steps, and protect their yields with absolute professionalism.

Step 1: Conduct Rigorous Market Research

Confident landlords begin with data. They determine exactly what the open market

supports before proposing any increase.

Actionable steps:

• Identify 3-5 comparable properties currently on the market or recently let.

• Analyse current rental trends in the specific postcode.

• Document all findings, saving property listings and agent valuations as evidence.

• Result: You establish a legally defensible target rent based on hard facts, not assumptions.

Step 2: Prepare the Statutory Documentation

Confident landlords do not cut corners on paperwork. They use the correct prescribed forms and ensure absolute accuracy.

Actionable steps:

• Obtain the official Form 4A for a Section 13 notice.

• Complete all fields accurately, ensuring the proposed rent and effective dates are correct.

• Ensure the new rent takes effect no earlier than 52 weeks after the tenancy start or the last increase.

• Result: Your notice is legally valid and cannot be dismissed on a technicality.

Step 3: Serve Notice Correctly

Confident landlords understand that a valid notice is useless if it is not served properly.

Actionable steps:

• Provide at least two months’ notice, as required by the new legislation.

• Use a valid method of service (e.g., recorded delivery or hand delivery with a witness).

• Retain definitive proof of service.

• Result: Your administrative process is watertight, preventing delays or legal challenges based on improper service.

Step 4: Communicate Professionally

Confident landlords manage tenant relationships proactively. They explain the commercial reality without being confrontational.

Actionable steps:

• Provide a professional covering letter alongside the formal notice.

• Explain that the increase aligns with current open market rates.

• Share a summary of the comparable properties to demonstrate fairness.

• Maintain a solutions-oriented, empathetic, yet firm tone.

• Result: The tenant understands the justification, reducing the likelihood of a tribunal challenge and preserving a positive working relationship.

Step 5: Maintain Flawless Records

Confident landlords treat property management as a serious business. They document every step of the process.

Actionable steps:

• Create a dedicated file for the rent review.

• Store the market research, a copy of the signed notice, proof of service, and all tenant correspondence.

• Result: You possess a complete, tribunal-ready evidence pack should a dispute arise.

The Outcome: Why Professionalism Pays Off

Landlords who adopt this strategic approach consistently achieve positive outcomes. They protect their yields, maintain compliance, and avoid the stress of protracted disputes.

Outcome 1: Successful, Undisputed Increases

The vast majority of properly evidenced and professionally communicated rent increases are accepted without formal dispute. When tenants see the market data, they generally understand the commercial reality. The landlord’s income is protected, and the tenancy continues smoothly.

Outcome 2: Favourable Dispute Resolutions

In the minority of cases that do proceed to a tribunal, the prepared landlord is in a dominant position. Because the tribunal assesses the open market rent, the landlord’s comprehensive evidence pack usually results in the increase being upheld (or negotiated to a mutually acceptable figure prior to the hearing).

Outcome 3: Strategic Confidence

Perhaps the most significant outcome is operational confidence. Landlords who master the new compliance landscape operate without fear. They know their processes are robust, their properties are profitable, and their business is secure against legislative changes.

The Verdict: Process Determines Profitability

The narrative that the Renters’ Rights Act has destroyed the ability to raise rents is a myth. The outcome of a rent review is not determined by the existence of new rules; it is determined by how well a landlord adapts to them.

Landlords who cling to outdated, informal processes will struggle. Landlords who embrace evidence-based, compliant processes will continue to win. The new legislation demands a higher standard of professionalism, and those who meet that standard are in a stronger position than ever to protect and grow their portfolios.

Next Steps: Secure Your Portfolio's Future

Are you ready to transition from an anxious landlord to a confident, strategic property

investor? The path forward requires precision, market knowledge, and strict compliance.

1. Analyse your current portfolio: Identify properties that are currently under-rented

compared to the open market.

2. Gather your evidence: Start compiling comparable property data for your target areas.

3. Master the paperwork: Familiarise yourself with the new Section 13 requirements and

Form 4A.

4. Execute with confidence: Serve properly documented, evidence-based notices.

If you’d like to explore how these legislative changes apply specifically to your portfolio,

or if you need a deeper assessment of your rent review strategy, our team can guide you.

We specialise in navigating complex compliance landscapes across the PRS, HMOs, and

supported living sectors.

Disclaimer: This article provides general guidance and strategic insight only. It does not constitute legal, tax, or financial advice. The legislative landscape, including the Renters’ Rights Act, is subject to change. Always seek independent professional advice before making decisions affecting your property, business, or tenancies. Essential Management Ltd accepts no responsibility for actions taken based on this general guidance.

Frequently Asked Questions (FAQs)

Q: Can I still increase the rent under the Renters' Rights Act 2025?

A: Yes. You retain the right to increase rent to align with the open market rate. However, you must now use the formal Section 13 statutory process and can only implement an increase once every 12 months.

Q: What happens if my tenant challenges the rent increase?

A: Tenants have the right to challenge a Section 13 notice at the First-tier Tribunal. The tribunal will determine the open market rent for the property. If you have provided strong evidence (such as comparable local properties) supporting your proposed increase, the tribunal is likely to uphold a fair market rate.

Q: How much notice must I give for a rent increase?

A: Under the new rules, landlords must provide at least two months’ notice when serving a Section 13 rent increase notice.

Q: Can I still use rent review clauses in my tenancy agreements?

A: No. Contractual rent review clauses (such as fixed percentage increases or those linked to inflation/RPI) are abolished for assured tenancies under the new legislation. All increases must follow the statutory Section 13 route.

Q: Do I need to provide evidence when proposing a rent increase?

A: While you are not legally required to send evidence with the initial notice, it is highly recommended as best practice. Providing market comparables helps the tenant understand the increase is fair and significantly strengthens your case if the matter goes to a tribunal.