Almost every tenancy that ends badly was knowable at the start. Arrears, neglect, abandonment — in most cases the warning signs were sitting in the application, unread. And the stakes rose in May 2026: with Section 21 abolished and every tenancy now periodic, the decision to hand over keys is harder to reverse than it has ever been. Referencing is now your single most important risk control. Here is how to do it properly.

Why referencing matters more since May 2026

Under the Renters' Rights Act, possession requires a legal ground, evidence and a court process. There is no longer a no-fault route out of a tenancy that merely feels wrong. At the same time, the Act capped rent in advance at one month, removing the old habit of de-risking a marginal applicant by taking six months up front. Both changes push risk management to the front door: the quality of your referencing now determines the quality of your year.

The five pillars of proper referencing

1. Identity and right to rent

Verify who you are dealing with before anything else: photo ID checked against the person, and right to rent checks completed for every adult occupier — not just the named tenant — using original documents or the Home Office online service. Keep dated copies. This is a legal requirement in England, not a courtesy, and it also quietly filters out applicants whose paperwork does not hold together.

2. Credit history

A credit check reveals CCJs, insolvencies and address history. You are not looking for a perfect score; you are looking for honesty and pattern. A disclosed, historic blip with a good explanation is often fine. An undisclosed CCJ, or an address history that does not match the application, is a red flag regardless of the score attached to it.

3. Income and employment

The common affordability benchmark used by referencing providers is that annual income should comfortably cover the rent — many work on a multiple of around 30 times the monthly rent. Verify it: an employer's reference confirming role, salary and contract status, plus payslips or, for the self-employed, an accountant's reference or tax returns. Confirm the employer exists and call the switchboard number you find independently, not the mobile number on the form — a surprisingly effective fraud check.

4. Previous landlord reference

The most predictive check of all, and the most commonly skipped. Ask specific questions: Did they pay on time, every time? Was the property returned in good condition? Would you let to them again? Speak to the landlord before the current one if you can — the current landlord of a bad tenant has an incentive to help them leave. Verify the referee actually owns or manages the property they claim to.

5. The whole-picture review

Individual checks catch individual problems; fraud lives in the gaps between them. Do the dates line up across the credit file, the employment history and the landlord reference? Does the stated salary fit the payslips, and do the payslips fit the bank statements? Professional referencing — the kind built into our tenant sourcing service — cross-checks documents as a set, and increasingly screens for edited PDFs and template payslips, which have become a genuine problem in the London market.

References do not tell you who a tenant is. They tell you who they have been — which is the best predictor you will ever get.

One more habit worth borrowing from professional referencing: write down your criteria before you market the property, not after applications arrive. An affordability threshold, the checks you will run, the evidence you will accept. Deciding the bar in advance keeps you consistent between applicants, makes decisions defensible if they are ever questioned, and — usefully — makes it much easier to say no to a charming applicant with paperwork that does not add up. Charm is not a reference.

Red flags worth slowing down for

Pressure to skip checks or move in unusually fast
Offers of large sums up front — which, since May 2026, you cannot lawfully accept beyond one month's rent in advance anyway
Reluctance to provide a previous landlord's details, or a referee who is vague on basic facts
Payslips, bank statements or references that share fonts, formatting quirks or metadata
Gaps or contradictions in the address history
A guarantor who has not seen the documents they are guaranteeing

Holding deposits and process discipline

Once you choose an applicant, the process itself needs to be as clean as the checks. A holding deposit — capped in England at one week's rent under the Tenant Fees Act — takes the property off the market while referencing runs, and sets expectations on both sides. Be clear in writing about what happens to it: it can generally be retained only in defined circumstances, such as the applicant providing false or misleading information or withdrawing, and otherwise must be returned or put towards the tenancy. Keep the referencing window short and communicative — good applicants have other options, and a week of silence loses them. Above all, do not let a strong-looking applicant rush you into keys-before-checks: the tenancy starts when referencing finishes, the agreement is signed, the deposit is protected and the move-in documents are served, in that order, every time. Process discipline is dull right up until the day it is the difference between a clean possession case and a compromised one.

Guarantors: the backstop, done properly

Where affordability is marginal — students, new arrivals to the UK, probation-period employment — a guarantor bridges the gap. But a guarantee is only as good as its paperwork: reference the guarantor to the same standard as the tenant, ensure they receive and sign the tenancy documents, and use a properly drafted deed. A guarantor who was never shown the tenancy agreement is an argument waiting to happen, not security.

Fair, lawful and consistent

Good referencing is rigorous, not discriminatory. Apply the same criteria to every applicant, keep records of decisions, and remember that blanket bans on renting to families with children or benefit recipients are unlawful. Rigour protects you; consistency protects you twice.

The bottom line

A week spent referencing properly is cheaper than a month of arrears — and immeasurably cheaper than a possession claim. If you would rather have this done by a team that references hundreds of applicants a year, our tenant sourcing service covers marketing, viewings, full referencing and tenancy setup, and it slots in whether we manage the tenancy afterwards or you do. A well-chosen tenant is also your best defence against the empty weeks we cover in our guide to void periods.

How to Spot a Good Tenant: Referencing Done Properly