The clause is void. That is the part worth holding on to when a letting agent in Clapham tells you the landlord "prefers" six months upfront. Since 1 May 2026, when the main body of the Renters' Rights Act 2025 came into force, any term in a tenancy requiring more than one month's rent in advance has no legal effect, and the act of asking for money before you have signed anything can expose the landlord or agent to a civil penalty of up to £7,000. Government guidance issued in May set out worked examples of exactly this breach, including the classic "no UK credit history, so pay six months" demand.
Yet the requests keep coming, and September is when they peak. Students, new arrivals and anyone moving for an autumn job start are the ones being asked.
What an agent can lawfully ask for before you get the keys
Three payments survive. Everything else was killed off by the Tenant Fees Act 2019 and has stayed dead: referencing fees, admin fees, inventory fees, renewal fees, "contract preparation".
| Payment | Legal cap | When it can be asked for |
|---|---|---|
| Holding deposit | One week's rent (annual rent divided by 52, per Schedule 1 of the Tenant Fees Act 2019) | Before signing, to reserve the property while checks run |
| Tenancy deposit | Five weeks' rent where annual rent is under £50,000; six weeks where it is £50,000 or more | On or before the tenancy starting, then protected in a scheme |
| Rent in advance | One month (or 28 days for shorter rent periods) | Only after the tenancy has been entered into |
Run the numbers on a £2,000 a month flat, which is ordinary money for a one-bed in Zone 2. One week's rent is £461.54. A five-week deposit is £2,307.69. The first month is £2,000. Assuming the holding deposit is credited against what you owe, which is standard and should be agreed in writing, you are handing over £4,307.69 before you get the keys. Six months upfront on the same flat would be £12,000.
The six-week deposit band matters less in London than people assume. The £50,000 annual threshold works out at £4,166.67 a month, and the ONS Price Index of Private Rents put the highest average local-authority rent in the country at £3,591 in Kensington and Chelsea in May 2026. Outside genuinely prime lets, five weeks is your cap. If you are quoted six weeks on a £2,400 flat, that is simply wrong.
The holding deposit also has a clock on it. The default deadline for agreement is 15 days from the day it is paid, and if the tenancy goes ahead, or if the landlord pulls out, or if the deadline passes without agreement, it must be refunded within seven days. An agent can only hold one holding deposit on one property at a time.
The order of payments is the bit agents keep getting wrong
The old workflow was: transfer the first month's rent, and we will countersign once it clears. Under the current rules that sequence is backwards. Rent must not be asked for, encouraged or accepted before the tenancy has been entered into. Sign first, pay after.
This is not pedantry. It is the specific behaviour the guidance flags as a breach, and it is enforceable against the agent as well as the landlord where the breach happened with their knowledge or through their neglect.
What to say, verbatim, when the payment link arrives: "Happy to pay the first month's rent as soon as the agreement is signed by both parties. I can't pay rent in advance of the tenancy being entered into, since that is a breach of the rent in advance rules. Send the agreement over and I'll turn it round today."
Most agents will fold immediately, because most of them know. The ones who do not fold are telling you something useful about how the tenancy will be managed.
Why tenancies signed before May are treated differently
If your tenancy was agreed before 1 May 2026 and contains an arrangement for rent to be collected in advance, the NRLA's guidance for landlords is clear that the arrangement can continue until that tenancy comes to an end. So a student who paid a full year up front in August 2025 has no claim, and a tenant on a quarterly payment schedule agreed in March 2026 is stuck with it for now.
The wrinkle is that all existing assured shorthold tenancies converted automatically to periodic assured tenancies on 1 May 2026, without anyone having to sign anything. Deposit schemes made the switch on their side too. Conversion does not, by itself, cancel a pre-existing advance rent arrangement. What does end it is the tenancy ending.
Two practical consequences. First, if you are on an old arrangement and your landlord offers you a new tenancy agreement, the new one is caught by the cap and cannot require more than a month at a time. Second, since fixed terms and Section 21 are both gone for most of the sector, the old justification for paying a year in advance ("it locks in the term") has nothing behind it. You are periodic either way, and you can end the tenancy by giving the prescribed statutory notice.
If you are moving from a lump-sum arrangement to monthly payments for the first time, set up the standing order for the day rent falls due rather than the day after, and keep the reference clean. Payment history is now one of the few things you can actually show a landlord, which is why rent reporting and open banking tools have become more useful than they were a couple of years ago.
What the bidding ban changes about a competing offer
Section 56 of the Renters' Rights Act does two things. Every advertisement or written offer for a letting must state a specific proposed rent, a precise figure for a period of no more than a calendar month. And the landlord or agent must not invite or encourage offers above that figure, or accept one.
The advertised rent is a ceiling now, not an opening position. If two applicants want the same Walthamstow flat at £1,750, the agent cannot ask either of them to go to £1,800, cannot hint that "the landlord is looking for offers", and cannot accept £1,800 if you volunteer it. Nor can they use upfront rent as a tie-breaker, because the advance cap closes that door at the same time.
What they can still do is choose between applicants on other grounds: references, employment, affordability, a guarantor. Guarantors remain lawful, and for renters without UK credit history a guarantor or a paid guarantor service is now the realistic substitute for the six-months-upfront offer. Barristers at Field Court Chambers have publicly raised the concern that removing price competition pushes more weight onto these other criteria, which is worth knowing when you are deciding what to volunteer.
If an agent invites a higher offer, say this: "I'll offer the advertised rent. I understand you can't accept above it under the rental bidding rules, so I'd rather put my application in on strength of references."
Enforcement, and getting money back if you have already paid
Councils, not courts, are the front line. Every London borough's trading standards team enforces the Tenant Fees Act 2019, and the same authorities have the new powers under the Act.
- Civil penalties. Local authorities can impose up to £7,000 for a first or less serious breach of the prohibited conduct rules, rising to up to £40,000 for serious, repeated or continuing breaches, with criminal prosecution available as an alternative for the worst cases. Under the Tenant Fees Act, a first prohibited payment breach carries a penalty of up to £5,000.
- Recovering a prohibited payment. If you have paid a banned fee or an over-cap holding deposit or deposit, you can apply to the First-tier Tribunal (Property Chamber) for it back, or complain to the agent's redress scheme. Both routes are free to use and neither needs a solicitor.
- Rent repayment orders. The Act widened these considerably. Tenants as well as councils can apply to the First-tier Tribunal, and the maximum award is now up to two years' rent for the expanded list of offences.
- Challenging the rent itself. If you take a tenancy and think the rent is above market, you can ask the First-tier Tribunal to assess it within the first six months.
The first step costs nothing. Email the agent, quote the void term, and give a deadline: "The clause at [X] requiring six months' rent in advance is void under the Renters' Rights Act 2025. Please confirm in writing within seven days that the sum will be refunded or credited against future rent. Otherwise I will report this to [borough] trading standards and apply to the First-tier Tribunal." Copy the branch manager. Keep the advert screenshot, the WhatsApp messages and the payment reference, because the case turns on what was asked for, not on what was eventually signed.
One caution on tone at the viewing. You want the flat, and you are dealing with a person who can put your application to the bottom of a pile. Ask the question flatly and without a speech: "What's the total due before move-in, itemised?" Any answer containing more than one month's rent, a week's holding deposit and five or six weeks' deposit is either an error or a test.
The market backdrop is less brutal than it was. The ONS index recorded average UK private rent at £1,388 in June 2026, up 3.3% over twelve months, and London posted the lowest annual rent inflation of any English region at 2.0% in the twelve months to April 2026. Slower growth does not stop an autumn queue forming outside a well-priced two-bed, but it does mean fewer landlords hold the cards they held in 2023. If you are weighing where to compete, the boroughs on our list of areas that work for young professionals tend to reprice faster than the agents' asking rents suggest.
Pay one month. Not six.