Tenant screening that actually reduces risk
Referencing is not about finding the perfect tenant. It is about establishing whether the one in front of you will pay the rent.
The quality of a tenant determines whether a rental property is a source of income or a source of expense, and the reference is the only structured opportunity to assess that before the tenancy begins. Doing it properly costs a modest amount and is the highest-return money spent on the property.
It also has to be done lawfully. Discrimination law restricts what a landlord may ask and what may influence a decision, and the safe approach is to apply the same checks and the same criteria to every applicant.
What a reference should establish
The core question is affordability and reliability, and the evidence for each is specific.
- Identity, verified against documents rather than taken on trust
- Employment or income, verified with the employer or through accounts for the self-employed
- Affordability, commonly assessed at rent no more than 30–35% of gross income
- Previous landlord reference, and specifically whether rent was paid on time
- Credit history, including any county court judgments or insolvency
- Right to rent, checked and copied as the law requires
- Guarantor where affordability is marginal, with the guarantor themselves referenced
What a reference will not tell you
A previous landlord's reference is the weakest evidence, because a landlord who wants a problem tenant gone has an incentive to be generous. A reference from a letting agent for the same property is slightly better, and a reference that confirms payment dates is better still.
Credit history tells you about the past, not the future. A clean credit file with no rental history is a weaker signal than a small default two years ago followed by a period of regular payments. The pattern matters more than the single event.
Staying lawful
It is unlawful to discriminate on the basis of race, sex, disability, religion or belief, sexual orientation, or age, and in practice this means applying consistent criteria to every applicant and being able to demonstrate that you did.
The safe approach is a written policy applied to everyone: an affordability threshold, a reference requirement, and a clear decision. Where an applicant does not meet the threshold, the reason should be the threshold and not a characteristic. Note the reason for each decision.
Common questions
- Can I refuse a tenant because they have children or pets?
- Refusing a tenant because they have children can amount to unlawful discrimination, particularly indirect sex discrimination, and is risky. Pets are a different matter and a landlord may decline a pet, though the law is moving towards giving tenants a stronger right to request one. Apply consistent criteria and document the reason for any decision.
- Is a guarantor enough if a tenant fails referencing?
- A guarantor helps considerably, provided the guarantor is themselves referenced and is genuinely able to cover the rent. The guarantee should be taken properly — ideally by deed — and it should be clear what it covers: rent, damage, and legal costs. An unreferenced guarantor with no assets adds nothing.