Tenant Referencing Done Right: Lawful Affordability Checks That Don’t Cross the Line into Discrimination

Landlord reviewing tenant referencing and affordability checks on laptop

In today’s rental market, tenant referencing is more than a procedural step, it’s a critical safeguard for landlords and letting agents alike. Done correctly, it helps ensure rent is affordable, tenancies are sustainable, and risks are minimised. Done poorly, however, it can expose landlords to serious legal and reputational risks, particularly where affordability checks stray into discriminatory practices.

At Martin & Co, we understand the importance of striking the right balance: robust referencing that protects landlords while remaining fair, consistent, and aligned with evolving legislation such as the Renters’ Rights Act.

Related: Replacing rent-in-advance with smarter risk controls

Why Affordability Checks Matter More Than Ever

With ongoing cost-of-living pressures and changes to rental legislation, affordability assessments have become increasingly important. Landlords need confidence that tenants can meet their rental commitments, while tenants expect a fair and transparent process.

Affordability checks are not just about protecting rental income, they also help prevent arrears, reduce tenancy disputes, and support long-term tenancy stability. However, these checks must be grounded in objective financial criteria, not assumptions or bias.

The Legal Context: Staying Compliant Under the Renters’ Rights Act

The Renters’ Rights Act is reshaping expectations across the private rented sector, with a stronger focus on fairness, transparency, and tenant protections. While landlords retain the right to assess affordability, they must ensure their processes do not unfairly disadvantage certain groups.

This means avoiding blanket policies or practices that could be seen as exclusionary. Instead, referencing must be applied consistently, with decisions based on clear financial evidence rather than personal characteristics or assumptions.

What Constitutes a Lawful Affordability Check?

A lawful affordability check is one that is objective, consistent, and evidence-based. It focuses on a tenant’s financial capacity rather than personal circumstances.

Typically, affordability is assessed using an income-to-rent ratio. A common benchmark across the industry is that a tenant’s annual income should be at least 2.5 to 3 times the annual rent. While this is not a legal requirement, it is widely accepted as a reasonable indicator of affordability.

The key is consistency. The same criteria should be applied to every applicant to ensure a fair and transparent process.

Related: The landlord’s rent review calendar: Building a 12-month rent strategy

Avoiding Discrimination: Where Landlords Can Go Wrong

Discrimination in tenant referencing is not always obvious. Often, it arises from rigid or outdated policies that unintentionally exclude certain groups.

For example, blanket restrictions against tenants based on income source or employment type can be problematic if they are not backed by objective financial reasoning. Similarly, making assumptions about affordability without reviewing full financial evidence can lead to unfair outcomes.

Common pitfalls to avoid include:

  • Applying inconsistent affordability criteria between applicants
  • Rejecting tenants without properly assessing their full financial position
  • Over-relying on rigid income thresholds without considering context
  • Making assumptions based on employment type or income structure

The guiding principle should always be clear: decisions must be based on evidence, not assumptions.

Taking a Fair and Flexible Approach

While consistency is essential, flexibility is equally important. Not all tenants fit neatly into standard affordability models, and a rigid approach can unintentionally exclude suitable applicants.

For instance, self-employed tenants or those with multiple income streams may still demonstrate strong affordability when their full financial picture is considered. Likewise, tenants with savings or a strong rental history may present lower risk than initial figures suggest.

In these situations, landlords can consider alternative forms of reassurance, such as a guarantor, advance rent, or evidence of savings. Taking a broader view allows for better decision-making without compromising fairness.

The Role of Professional Referencing

Professional tenant referencing services play a key role in ensuring consistency and compliance. At Martin & Co, our approach is designed to be thorough, fair, and aligned with current expectations under the Renters’ Rights Act.

We focus on verified financial data, including income checks, credit history, and previous rental behaviour. This ensures decisions are grounded in evidence, reducing risk for landlords while maintaining a fair process for tenants.

Related: Making Tax Digital from April 2026: What Landlords Need to Know

Documentation and Transparency: Your Best Defence

Clear documentation is essential. Landlords should ensure affordability criteria are well defined, consistently applied, and supported by evidence.

Keeping accurate records of decisions and maintaining transparency with applicants not only builds trust but also protects if decisions are ever challenged.

Striking the Right Balance

Tenant referencing is not about excluding applicants, it’s about making informed, fair decisions that protect both landlords and tenants. By focusing on objective financial criteria and avoiding rigid or assumption-led practices, landlords can carry out affordability checks with confidence.

In a changing regulatory landscape, getting this balance right is more important than ever.

How Martin & Co Can Help

At Martin & Co, we combine local expertise with robust, compliant processes to support landlords at every stage of the letting journey. From tenant referencing to full property management, we ensure your investments are protected while delivering a fair and professional experience for tenants.

Get in touch with your local Martin & Co branch today to learn more about our expert tenant referencing and property management services.

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