Under the Renters' Rights Act 2025, the rent you set on day one is the rent for life — here's why
Short answer: the Renters' Rights Act 2025 has removed every meaningful mechanism a landlord previously had to correct a mispriced tenancy. The asking rent you publish on day one is, in practical terms, the rent that property will earn for the life of the tenancy. This isn't an exaggeration. It's the cumulative effect of five separate provisions of the Act, each of which closes a recovery route landlords used to rely on.
This matters because most landlords are still operating under pre-RRA pricing instincts. Those instincts will lose them money for years.
The pre-RRA world: mispricing was recoverable
For thirty years, a landlord who set the wrong opening rent had several ways out. If you under-priced, you could accept a higher offer at let, push rent up sharply at renewal, lock the tenant into a fresh fixed term to crystallise the new figure, and if anything went wrong serve Section 21 notice and re-let at market. If you over-priced, you could take rent-in-advance from a wealthy applicant who didn't mind, or accept a slightly higher void in exchange for sticker price.
None of those levers still exist.
The five levers the RRA has removed
Lever 1: You can't accept a higher offer than your asking rent
Section 56 of the Renters' Rights Act 2025 bans rental bidding. Once a property is listed at an asking rent, that figure is the ceiling. No agent or landlord can lawfully accept a payment higher than the advertised rent.
In the pre-RRA market, under-pricing was self-correcting: list too low, get ten offers, accept the highest. That correction mechanism is now illegal. If you list at £2,400 and the market would have borne £2,650, you have donated £3,000 a year for the duration of that tenancy to the tenant who got there first.
The first-come allocation requirement also means the speed of your application process matters more than ever. We allocate strictly to the first applicant who meets the published criteria and passes referencing. See our application allocation protocol for the operational detail.
Lever 2: Rent increases are capped to one per year and the tribunal can only reduce them
Section 13 of the Housing Act 1988 is now the only mechanism to increase rent on an existing tenancy. It allows a landlord to propose a new rent once every twelve months, using Form 4A, with two months' notice.
Two features make this far more restrictive than it sounds:
First, the tenant has the right to refer the proposed increase to the First-tier Tribunal. If they do, the tribunal will compare the proposed rent against the open market rent for the property, and the tribunal can only reduce the landlord's proposed figure, never raise it. There is no upside to over-proposing.
Second, because the increase is capped to one per year, the gap between an under-priced opening rent and market rate compounds for at least a full year, and often longer. A property let at £200 below market loses £2,400 across year one, £2,400 across year two until you can lawfully propose an increase, and at best £1,800–2,000 of that gap closes at the first review. Even with a perfectly executed Section 13 each year, the deficit takes three years to clear, and that's before you account for the legal cost of any tribunal challenge.
Lever 3: The tenant can leave at any time with two months' notice
Every assured tenancy now begins as periodic by statute. Fixed-term ASTs no longer exist. Tenants have an automatic statutory right under section 5(1ZA)(a) of the Protection from Eviction Act 1977 (inserted by section 20 of the Renters' Rights Act) to give two months' written notice at any time and walk away.
This sounds like it cuts only one way — landlords lose the ability to lock tenants in — but it has a particular pricing implication: if you over-price, tenants are no longer trapped by a fixed-term commitment. They serve their two-month notice and you carry the void. The market clears price discrepancies through tenant departures rather than through rent re-negotiation, which means over-pricing now produces void cost rather than negotiation leverage.
In a soft market, an over-priced property will rotate tenants faster than a correctly priced one. Each rotation is a void period, a marketing cost, and the risk of having to drop the asking rent further on the re-let.
Lever 4: You can't take rent in advance to mask affordability
Section 8 of the Renters' Rights Act 2025 bans the long-standing practice of accepting six months' rent (or more) upfront from applicants who couldn't otherwise pass affordability referencing.
Routine first-month's rent at move-in is still permitted. Everything beyond that — voluntary lump-sum prepayment from an overseas applicant, advance rent as a substitute for a UK guarantor, the "I'll just pay you a year up front" approach — is now prohibited.
The pricing implication is that a previously-recoverable mispriced property could be propped up by cash flow from a non-standard payment arrangement. That escape valve is closed. Every tenancy now lives or dies on its monthly cash flow, which means the asking rent has to be right for the actual paying population, not for the small fraction who'd have paid upfront.
For applicants who can't pass affordability on income alone, the post-RRA route is the Goodlord Guarantor product — not advance rent.
Lever 5: There is no Section 21
The headline change everyone knows about. Section 21 no-fault eviction is abolished.
A landlord who wants to recover possession now has to demonstrate one of the grounds in Schedule 2 of the Housing Act 1988 (as comprehensively rewritten by Schedule 1 of the Renters' Rights Act). The most reliable mandatory ground for arrears — Ground 8 — now requires thirteen weeks of arrears for weekly tenancies or three months for monthly tenancies, up from eight weeks / two months.
The pricing implication is that "I can always evict and re-let" is no longer a viable correction strategy for a mispriced tenancy. Eviction is now slower, more expensive, evidentiary, and exposed to discretionary grounds. A tenant who is paying the rent in full and on time cannot be removed for the landlord's commercial convenience, full stop.
The compound effect
Each of the five levers, on its own, would be a meaningful constraint. Together, they are total. There is no longer any mechanism — legal, financial, or operational — by which a landlord can recover from a mispriced opening rent during the life of the tenancy.
This is why the marketing price you set on day one is functionally the price for the life of the tenancy. Not "for the next twelve months". Not "until renewal". For the life of the tenancy — which, under the periodic regime with no fixed term, is potentially indefinite.
How we handle this at Harvey W James
We are London Rental Analysts. The pricing decision is now the single most important commercial decision in the life of a tenancy, and our pricing methodology reflects that.
Our valuation process draws on three years of Rightmove and Zoopla listing-and-enquiry data across London, combined with our own portfolio of recent lettings. We model the open market rent for your property using the Comparable Rental Method (Section 1.3 of our Lettings Valuation Guide), cross-referenced against the click-through rate data from comparable listings in your micro-market.
We also engineer the re-letting cycle. Under the periodic regime, no agent can promise an August re-let, but we can plan tenant communications and (for managed properties) deploy the Assisted Tenancy Replacement Process so that the re-let lands in August, the month with the highest enquiries-to-listings ratio in London.
And — most importantly — we will not take an instruction at the wrong asking rent. If a landlord insists on a price our data does not support, we say so. Pre-RRA, taking that instruction cost the landlord some void weeks. Post-RRA, it costs them the lifetime yield of the tenancy. We're not interested in that arithmetic, on either side.
What you should do
If you are a landlord with property currently on the market or coming to market this year, three things:
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Get an evidenced valuation from an analyst, not an opinion from an agent. Ask any agent to show you the comparable data behind their suggested asking price. If they can't, find one who can.
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Don't list more than four weeks before your available date. This isn't an RRA point — it's a fundamental of how Rightmove and Zoopla listings decay — but it matters more now because of how expensive a mispriced re-list is to correct. See our Four Week Rule explainer.
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Engineer your re-let cycle. If your current tenancy is approaching its anniversary, plan now for the next vacancy to land in August. Talk to us about the Assisted Tenancy Replacement Process if your property is on managed service.
The RRA has made the pricing decision permanent. We've spent three years preparing the data and the process to make sure that permanent decision is the right one.
Sources
- Renters' Rights Act 2025 (chapter 26), enacted 27 October 2025 — legislation.gov.uk
- Housing Act 1988, sections 4A (inserted by RRA s.1), 5, 13, and Schedule 2 (as amended by RRA Schedule 1)
- Protection from Eviction Act 1977, section 5(1ZA)(a) (inserted by RRA s.20)
- MHCLG, "Grounds for possession: guidance for landlords and letting agents" (1 May 2026)
- Harvey W James, Essential Terms and Charges v2.1.5: §22 [BIDDING-001], §23 [RENTADV-001], §41 [RENT-003], §68 [ENDING-002], §68.0 [ENDING-003], §69 [POSSESSION-001]
- Harvey W James, Lettings Valuation Guide v2.0 (RRA-aligned): §1.3 (Comparable Rental Method), §4 (Four Week Rule), §5 (Days on Market), Timing Appendix
This page reflects Harvey W James' operational understanding of the Renters' Rights Act 2025 and the associated amendments to the Housing Act 1988 and Protection from Eviction Act 1977. It is not legal advice. For the published Act text refer to legislation.gov.uk; for your specific situation seek independent legal advice. Last reviewed against Essential Terms and Charges v2.1.5 (7 May 2026).