Rent guarantor services: what they cover and whether to accept one

A rent guarantor service is a company that stands as guarantor for a tenant who cannot provide a personal one, in exchange for a fee the tenant pays. For a landlord, the practical question is not whether these services are legitimate, the established ones are, but whether the guarantee they offer is worth as much as a personal guarantor's, and what the deed actually commits them to. The answer varies more between providers than most landlords expect. Figures below were checked in September 2026 against each provider's published terms.

Rent guarantor service or rent guarantee insurance?

These are different products and the names are one letter apart, so it is worth being precise before going further. A rent guarantor service is bought by the tenant: the company becomes a party to the tenancy as guarantor and can be pursued for arrears in the same way an individual guarantor could. Rent guarantee insurance is bought by you: an insurer pays out when a tenant defaults, subject to the policy conditions and usually a satisfactory reference.

They are not alternatives so much as different layers. A tenant with a commercial guarantor can still default, and your insurance still responds. A guarantor service costs you nothing; insurance costs you a premium. Landlords with a marginal applicant sometimes end up with both.

The main UK rent guarantor companies

Around a dozen providers operate in the UK, with four names appearing on most tenancies.

Note what is and isn't published. Most providers state their rent ceilings and arrears caps clearly, which are the numbers that decide whether the guarantee is worth anything to you. Fees are much vaguer, often quoted as a "from" figure with no charging basis, and some pricing is partner-specific rather than universal. That asymmetry is fine for your purposes, since the caps matter more to a landlord than the fee does, but it means a tenant should get the fee in writing before paying anything.

What these services actually guarantee

This is where providers diverge, and where a landlord accepting one on trust gets caught out. Check four things against the specific product in front of you.

Scope. Some products guarantee rent only. Others extend to damage and dilapidations. If the deed covers rent alone, your deposit is still doing all the work on damage.

Ceiling. Every provider caps the rent it will guarantee and most cap total arrears exposure. A cap below your annual rent means the guarantee runs out before a possession case does.

Trigger and process. Ask at what point the company pays: on a missed payment, after a formal demand, or only after judgment. A guarantee that engages at judgment is worth considerably less than one that engages at month two, given how long a Section 8 arrears case now takes.

Joint tenancies. Some products guarantee the individual tenant's share, others the whole tenancy. On a four-person house share this is the difference between a useful guarantee and a quarter of one.

Should you accept one instead of a personal guarantor?

Usually yes, with the checks above done. A commercial guarantor is a solvent company with a published process, which compares well against an individual guarantor whose own finances you have referenced once and will never revisit. The practical risk with a personal guarantor is not bad faith but capacity: a parent guaranteeing three children's tenancies is a different covenant from the one you referenced.

The case against is narrower than it looks. It rests mostly on scope and ceiling, which the deed answers, rather than on the provider's reliability. Where the service genuinely adds nothing is a tenancy where the tenant already passes affordability comfortably; a guarantee bought to clear a bar the tenant has already cleared is a cost to them and a complication to you.

One thing you must not do is require it. Under the Tenant Fees Act 2019 you cannot compel a tenant to use a particular third-party service to satisfy your affordability check, and steering an applicant toward a named provider is a practice worth avoiding entirely. Set your criteria, apply them consistently to everyone, and let the tenant choose how to meet them. Our guide to assessing affordability sets out the common benchmarks, and a guarantor should be referenced to the same standard as the tenant, as our comparison of tenant referencing services covers.

What the Renters' Rights Act changed

Two changes bear directly on guarantors, both since 1 May 2026.

The Act limits guarantor liability after a tenant's death, but only for individuals. Section 19 inserts section 16N into the Housing Act 1988, under which a guarantee given by an individual who became a party on or after 1 May 2026 has no effect so far as it guarantees rent for the period beginning with the tenant's death. The provision is written around individual guarantors, so a professional guarantor company is unlikely to benefit from it.

For a landlord that produces an unexpected asymmetry. On a personal guarantee, your recovery stops at the tenant's death by operation of statute. On a commercial guarantee, the position is governed by the contract, which may continue, may terminate, or may be silent. It is one of the few respects in which a commercial guarantor may be worth more to you than a family member, and it is entirely a question of what the deed says. Read the death and termination clauses of any commercial product on their own wording.

What to check before you accept

Get the deed, not the brochure. A commercial guarantee is a contract and the marketing page is not it. Confirm the guaranteed amount and any arrears cap, whether damage is included, the trigger point for payment, the position on joint tenancies, what happens at renewal and whether the guarantee carries into a periodic term, and the notice and termination provisions.

Then keep it. Across the tenancies we see on August, the guarantee that fails at the point of need is almost never the one from a bad provider; it is the one nobody can find, or the one that expired at the end of the original term while the tenancy rolled on. Store the executed deed against the tenancy alongside the agreement and the referencing file, with the renewal date set as a prompt, keeping tenancy documents in one place is what makes a guarantee enforceable rather than theoretical. For the personal-guarantor equivalent, our guarantor agreement template covers what a deed of guarantee should contain.

Frequently asked questions

Are rent guarantor services legitimate?

The established providers are real companies with published terms, and several work with local authorities and universities. Legitimacy is not the issue; scope is. Read what the deed guarantees and up to what limit rather than relying on the provider's description of itself.

Who pays for a rent guarantor service?

The tenant, in every case. Costs typically run from a small application fee plus a charge based on the rent, often a percentage of the annual figure or a few weeks' rent. It costs the landlord nothing.

Can I insist a tenant uses a guarantor service?

No. You can set an affordability standard and require a guarantor, but you cannot require a particular third-party service to meet it. Apply the same criteria to every applicant and let them choose how to satisfy them.

Is a commercial guarantor as good as a family member?

Often better, because it is a solvent company with a defined process rather than an individual whose circumstances may have changed since you referenced them. The caveat is scope: many products cover rent only and cap total exposure, where a personal guarantee usually does neither. You can start for free with August to keep the deed and its renewal date against the tenancy.

Provider terms verified September 2026 and subject to change. This article is a guide and not intended to be relied upon as legal advice.