Tenant referencing explained: what's checked, how long it takes and what happens if a tenant fails

What is tenant referencing?

Tenant referencing is the set of checks a landlord or letting agent runs on a prospective tenant before offering them a tenancy. At its simplest it answers three questions: is this person who they say they are, can they afford the rent, and have they been a reliable tenant before.

In practice that means a credit check, confirmation of identity and address history, verification of employment and income, and a reference from the applicant's current or previous landlord. Where the applicant can't meet the affordability test on their own, a guarantor is checked in the same way.

Referencing is not a legal requirement anywhere in the UK, but it is standard practice, and it is almost always a condition of rent guarantee insurance. It is also the landlord's or agent's cost to bear: since the Tenant Fees Act 2019 in England (and equivalent legislation in Wales and Scotland), tenants cannot be charged for their own reference.

Why referencing matters more since May 2026

For English landlords the ground shifted on 1 May 2026, when the main provisions of the Renters' Rights Act came into force. Four changes in particular make the decision to accept a tenant harder to unwind and easier to get wrong:

• Fixed terms and Section 21 are gone. All private tenancies are now periodic and can only be ended by the landlord on a specific Section 8 ground. There is no longer a fixed end date to fall back on if a tenancy isn't working.
• Rent in advance is capped at one month. Asking a marginal applicant for six months up front was a common way to manage risk. For tenancies signed on or after 1 May 2026 it is no longer allowed.
• Rental bidding is banned. You must advertise a rent and cannot accept offers above it, so you can't use price to filter applicants either.
• Blanket bans are unlawful. Policies such as "no benefits" or "no children" are prohibited. You can still decline an applicant on genuine affordability grounds, but the decision needs to be evidenced and applied consistently.

Put together, referencing is now the main risk control a landlord has before a tenancy starts, and a documented, consistent referencing process is also the best defence against a discrimination complaint. Wales and Scotland have their own regimes, but the direction of travel is the same everywhere: fewer blunt instruments, more weight on getting the assessment right.

What does a tenant reference check?

Identity and address history

The applicant's name, date of birth and current and previous addresses are confirmed against credit reference data and the electoral roll. This is less about catching fraud (though it does) and more about making sure the credit search is run against the right person, and that the address history they give matches reality.

Credit history

The credit check looks for County Court Judgments (CCJs), bankruptcies, IVAs, debt relief orders and other insolvency records, and confirms electoral roll registration. Lets Safe uses credit data supplied by TransUnion and returns a risk score in one of three bands: high (480–519), medium (520–569) or low (570–620).

Two things worth knowing. First, referencing credit checks, including Lets Safe's, are soft searches: they show on the applicant's own file but are invisible to lenders and don't affect their score. Second, a credit check on its own tells you about the past, not about affordability now. That is what the next check is for.

Affordability and employment

The applicant's employer is contacted to confirm their role, start date, contract type and salary, and that income is then tested against the rent using an income-to-rent ratio (IIR). Lets Safe's threshold is 2.4: monthly income must be at least 2.4 times the applicant's share of the monthly rent, so a tenant taking on £1,000 a month needs £2,400 a month coming in. Meeting the figure exactly passes; a shortfall is flagged as a warning on the report rather than treated as an automatic fail, so the landlord or agent can weigh it alongside everything else. Other regular monthly income counts towards the total, and confirmed future employment income can be taken into account where applicable. Other providers commonly use 2.5, but the principle is the same.

Self-employed applicants are usually assessed on tax returns or an accountant's reference rather than an employer's. Where an applicant's income includes benefits, that income counts towards affordability like any other, and refusing them for that reason alone is unlawful in England.

Previous landlord reference

The applicant's current or previous landlord or agent is asked whether rent was paid on time, whether the property was looked after and whether the tenancy ended properly. Two failure modes are common here: the referee never replies, and the "landlord" turns out to be a friend. A good referencing provider validates that the referee is genuinely connected to the property before relying on their answers.

Guarantor check

Students, people starting a new job, the self-employed and anyone newly arrived in the UK often can't pass the affordability test alone. A guarantor is checked in the same way as a tenant, and with Lets Safe to the same 2.4 income-to-rent ratio against the tenant's share of the rent; guarantors are also often expected to be UK-based and a homeowner. With rent in advance no longer available in England, the guarantor route has become the main way a marginal applicant can still proceed.

How the referencing process works

1. The agent or landlord creates the application. With Lets Safe that means entering the applicant's name and email address in the portal and choosing the check: an Express Check, a Complete Reference or a Guarantor Check.
2. The tenant completes their part online. They receive a link, confirm their identity and address history and, for a full reference, provide their employer's and previous landlord's contact details.
3. Credit-based checks run instantly. Identity, address, CCJ, insolvency and electoral roll results are returned as soon as the applicant submits.
4. Referees are contacted and validated. For a Complete Reference the employer and landlord are asked to confirm the details, and their responses are checked.
5. The report is delivered to the portal. The agent or landlord receives an advisory report summarising every check; the tenant is notified that the reference is complete.

How long does tenant referencing take?

Almost every delay in referencing is a referee who hasn't answered. HR departments that only process requests on certain days, landlords on holiday, a wrong email address typed by the tenant. Three things reliably speed it up: tell the applicant before you start that their employer and landlord will be contacted, ask them to warn those people to expect it, and double-check the contact details before submitting. If a referee still hasn't replied after a working day, the applicant is usually the fastest route to chasing them.

What tenants need to have ready

If you are the applicant, referencing goes quickly when you have the following to hand:

• Your full address history for the last three years, with dates
• Your employer's name, your job title and start date, and an HR or manager contact who can confirm your salary
• If self-employed, your accountant's details or your most recent tax return
• Your current or previous landlord's or agent's name and contact details
• If you need a guarantor, their agreement to be checked and their contact details

Answer everything honestly. Under the Tenant Fees Act a holding deposit can be kept if you provide false or misleading information, but it must be refunded if you simply don't pass after answering truthfully. A CCJ you disclose up front is a conversation; a CCJ you hide is a reason to keep your deposit.

Pass, conditional pass or fail: what the outcome means

A referencing report is rarely a simple yes or no. Most fall into one of three buckets:

• Pass. Identity confirmed, no adverse credit, income meets the affordability threshold, positive landlord reference. Proceed.
• Pass with conditions. Most of the picture is fine but one element falls short: income slightly under the threshold, a new job still in probation, a historic CCJ that has since been satisfied. The usual condition is a guarantor.
• Fail. Undisclosed adverse credit, a landlord reference reporting arrears or damage, or income well below what the rent needs.

When a tenant doesn't pass cleanly, the options in England are narrower than they were. Rent in advance beyond one month is no longer permitted and the security deposit is capped at five weeks' rent (six where the annual rent is £50,000 or more), so the practical routes are a checked guarantor, a different property at a rent they can afford, or declining the application. Whichever you choose, keep the report: a decision based on an evidenced affordability assessment, applied the same way to every applicant, is the position you want to be in if anyone later asks why.

Referencing and rent guarantee insurance

Rent guarantee insurance pays the rent if a tenant stops paying and covers the legal costs of regaining possession. Insurers price that risk on the assumption the tenant was properly referenced, so a satisfactory full reference, not just a credit check, is normally a condition of cover. If the landlord wants rent protection, run the Complete Reference from the start rather than upgrading later; it is cheaper and it avoids a gap. Lets Safe provides both, so the reference and the policy sit under the same account. See landlord protection for what the cover includes.

Six referencing mistakes to avoid

1. Accepting screenshots instead of verifying. Payslips and bank statements are easy to edit. Confirm income with the employer.
2. Not validating the landlord reference. Ask how the referee is connected to the property, and be suspicious of a glowing reference from a personal email address.
3. Running only a credit check on someone new to the UK. They will have no UK credit history, which looks like a clean file but proves nothing. Use employment verification and a guarantor instead.
4. Skipping the guarantor check. A guarantor who can't pay is no guarantor at all. Check them to the same standard as the tenant.
5. Relying on the risk score alone. The score summarises credit history. It says nothing about current income or how they treated their last property.
6. Starting too late. Referees take time to reply. Start the reference the day the holding deposit is taken, not the week before move-in.

Tenant referencing FAQs

This guide is general information about UK lettings practice, not legal advice. Legislation differs between England, Wales, Scotland and Northern Ireland and changes over time; check the current position for your jurisdiction.