What Is Tenant Referencing and How Does It Work?

Before handing over the keys, most landlords want some reassurance that the person moving in can comfortably afford the rent and has a sound record as a tenant. That is what tenant referencing is for. It is a structured set of background checks, carried out once an offer has been agreed, that builds a picture of an applicant's finances and rental history so you can make an informed, fair decision. Done well, it gives you confidence without slowing the let to a crawl; done poorly, it becomes a box-ticking exercise that tells you very little.

What referencing actually checks

Referencing pulls together a handful of independent sources to confirm that an applicant is who they say they are and can sustain the tenancy. The detail varies between providers, but a thorough reference usually covers the same core ground.

• Identity and address history, to confirm the applicant and where they have lived
• Affordability, by looking at income against the rent to see whether it is comfortably sustainable
• A credit check for County Court Judgments, bankruptcies or insolvency
• An employer reference confirming the role and income (or accountant's confirmation for the self-employed)
• A previous landlord reference on rent payment and how the property was kept

How the affordability assessment works

The heart of a reference is affordability. Referencing companies typically look for income that comfortably covers the rent with sensible headroom, rather than rent that swallows most of a person's earnings. The aim is not to set an arbitrary bar but to check that the tenancy is sustainable for the long term, which protects the tenant as much as it protects you.

Where an applicant's income alone does not meet the threshold, a guarantor is often the answer rather than a flat refusal. A guarantor agrees to cover the rent if the tenant cannot, and is referenced in much the same way. We explain who needs one and how the arrangement works in our guide to when a guarantor is required, which is worth reading before you turn an otherwise strong applicant away.

The documents an applicant provides

A smooth reference depends on the applicant supplying the right paperwork promptly. That generally means proof of identity, recent payslips or bank statements, and contact details for an employer and a previous landlord. Self-employed applicants may provide accounts or an accountant's letter instead. The more organised the applicant, the faster the process, so it helps to tell people at the outset what to gather; our checklist of the documents a tenant needs to pass referencing is a useful thing to share at the point of offer.

Where referencing fits among your legal checks

Referencing is about affordability and reliability. It sits alongside, but does not replace, the checks the law requires. Before any tenancy begins you must carry out a Right to Rent immigration check on every adult who will live in the property. Under the Tenant Fees Act 2019 you cannot charge the tenant for referencing or administration, so the cost of referencing sits with the landlord or agent, and any holding deposit you take is capped at one week's rent.

It is also worth remembering what referencing must never become: a way to screen people out by protected characteristic. The Renters' Rights Act 2025 reinforces this by prohibiting discrimination against families with children or tenants in receipt of benefits, and by banning rental bidding wars, so an advertised rent cannot be pushed up by inviting higher offers. For a fuller picture of how the new rules reshape letting in the capital, see our overview of the Renters' Rights Act 2025 for London landlords.

What a good reference can and cannot tell you

A strong reference reduces risk, but it is a snapshot, not a guarantee. It confirms income and history at a point in time; it cannot predict a job loss or a change in circumstances. That is one reason landlords pair referencing with sensible safeguards, such as a deposit protected in a government-approved scheme and, where appropriate, a guarantor or rent protection. Treating the reference as one input among several, rather than a single pass-or-fail gate, tends to produce better and fairer decisions.

Referencing also works best as part of a wider approach to choosing tenants well, from how a property is presented to how enquiries are handled. If you are building that process from scratch, our guide on how to find good tenants in London sets out the steps that lead up to referencing, and explains why a calm, consistent method beats gut feeling.

Letting an agent handle it

Many landlords prefer to delegate referencing to a managing agent, both to save time and to keep the process consistent and compliant. A good agent will brief applicants on what to provide, run the checks, interpret the results in context, and make sure the surrounding legal steps, from Right to Rent to deposit protection, are handled correctly. If you are weighing up whether to manage this yourself, our explainer on what a letting agent actually does and our wider guide to letting a property in London walk through where referencing fits in the overall journey. We also work with a range of corporate relocation tenants, and you can read more about letting to Japanese corporate tenants in London as one example among the many tenant profiles we reference and place.

Referencing need not be daunting. With clear expectations for applicants and a fair, consistent assessment, it gives you the confidence to let well while treating every applicant equally. If you would like a hand setting up a sound referencing process, or you would simply prefer to hand it over, our lettings team is always happy to talk it through. The above is general information and not legal or tax advice; for anything specific to your circumstances, do speak to a qualified professional.