Alongside the headline possession and rent-increase changes, the Renters' Rights Act rewired the money mechanics of starting a tenancy. Three rules matter: the cap on rent in advance, the ban on rental bidding, and the advertised rent becoming the lawful maximum. Each one changes habits that were completely normal before May 2026.
Sources at the end. For rent increases on existing tenancies, see Section 13 step by step.
Rule 1 — Rent in advance is capped at one month
You can no longer require more than one month's rent in advance (28 days' worth for weekly tenancies) before or at the start of a tenancy. The old workarounds for marginal applicants — "six months up front and we're fine" — are gone.
What this means in practice:
- You can still take: one month's rent in advance plus a deposit (up to the five/six-week statutory cap that already applied).
- You cannot require: multiple months up front, however willingly the applicant offers it as a way of strengthening a weak application.
- Referencing has to do the work now. Where large advance payments used to paper over thin credit history — students, overseas applicants, the newly self-employed — the answer is now proper referencing plus, where appropriate, a guarantor.
Schemes that recreate multi-month advance payments in another shape — inflated deposits, "holding" arrangements, side agreements — are the obvious enforcement target. Take the rule at face value: one month, a lawful deposit, and referencing that actually references.
Rule 2 — Bidding wars are banned
You (and any agent acting for you) must advertise a clear asking rent, and must not invite, encourage, or accept offers above it. The days of "offers over" listings and letting applicants outbid each other are over.
- Advertise the rent you actually want — it is now a ceiling, not an opening position.
- If an applicant spontaneously offers more, you still cannot accept it.
- Under-pricing to generate a scramble no longer has an upside: you keep the scramble but not the uplift.
Rule 3 — The advertised rent is the lawful maximum
The rent you advertise is the most you can lawfully agree for that letting. Combined with the bidding ban, this makes your pre-listing pricing work the whole ballgame: comparable evidence, realistic assessment, and a figure you'd be content to hold.
Get it wrong on the low side and your correction route is a Section 13 increase — two months' notice, aligned to a rent period, and not within the first 52 weeks of the tenancy. In other words: a mispriced listing locks in for a year.
How letting changes, practically
| Before May 2026 | Now |
|---|---|
| Weak application? Take six months up front | One month max — reference properly, use a guarantor |
| "Offers in excess of £X" | Advertise the real figure; it's the maximum |
| Under-advertise, let demand bid it up | Price on evidence before listing |
| Fix pricing mistakes at renewal | No renewals — Section 13, 52 weeks later, is the correction route |
Checklist before your next listing
- Price from current comparables and keep the evidence
- Advertise a single clear rent figure
- Brief your agent (if any) that offers above asking must be declined
- Update application templates: no requests for more than one month up front
- Line up a guarantor process for marginal-but-good applicants
Sources
- gov.uk — Private renting
- Shelter — Renters' Rights Act changes for private renters
- Housing Act 1988 (as amended)
Change log: 20 Aug 2026 — first published.
