Is it legal to raise rent without notice in the UK?

Plenty of tenants get a text on the 28th of the month saying “heads up, rent is going up on the 1st”. Most assume the landlord can do that because they own the place. They can't — at least, not in a way that legally binds you.

The short answer

No. In England a landlord can't legally raise your rent without proper notice. The statutory route — Section 13 of the Housing Act 1988, as amended by the Renters' Rights Act 2025 — requires:

• A completed Section 13 notice on the prescribed gov.uk form;
• At least two months' notice before the new rent starts;
• The new rent date aligning with the start of a rental period;
• No more than one Section 13 increase in any 12-month window.

A message that doesn't use the form at all doesn't put the rent up: keep paying the existing rent. If you have received a Section 13 form that looks defective, it may not take effect, but get advice before relying on that and keep treating its date as your tribunal deadline.

What ‘notice’ legally means

“Notice” isn't just “telling you in advance”. In English landlord and tenant law it's a piece of paper (or permitted equivalent) with prescribed content, served in a prescribed way, after a prescribed period. For a rent increase via Section 13 that means:

• The prescribed Section 13 form from gov.uk (the landlord's notice proposing a new rent).
• The current rent, the proposed rent, and the date the new rent is to take effect all clearly stated.
• At least two calendar months between service and the new-rent date.
• Service by hand, by post to the property address, or by another means specified in your tenancy agreement.

Any of those missing, and the notice may be “defective” — and a defective notice doesn't put up the rent. Get advice before relying on that, and keep treating the date in the notice as your tribunal deadline until an adviser confirms it's invalid.

What an informal email isn't

Landlords love informal channels — they're quick, friendly, and create no paperwork. An email saying “just letting you know rent is going to £X from next month” might feel like notice. It isn't. It's a proposal.

The distinction matters because of what each one does:

• A Section 13 notice imposes a new rent (subject to your right to challenge at tribunal). If you do nothing, you're on the new rent on the new-rent date.
• An informal proposal doesn't do anything by itself. You can accept, counter, or ignore. If you ignore it, the rent stays the same. (Until the landlord decides to use Section 13, which is its own clock.)

The one trap: don't act like you've agreed. If the landlord proposes a higher rent and you start paying it without comment, that can be argued as implied agreement. Either write back to decline, or keep paying the existing rent on the existing schedule.

Your three options if it happens

Your landlord just told you the rent is going up next month — by text, email, or a quick chat at the door. Here's the playbook:

1. Reply in writing to clarify the position. Something like: “Thanks — I've received your message about a proposed rent increase. As this isn't a Section 13 notice in the prescribed form, I'm treating it as a proposal rather than a formal notice. I'll continue paying the existing rent of £X per month. Please let me know if you intend to serve a formal Section 13 notice.” That's firm and polite. See our full response template for variations.
2. Keep paying the existing rent. Don't start paying the new figure. Don't miss a payment in protest either — that just gives the landlord a Section 8 ground.
3. If a Section 13 notice eventually arrives, run it through our Section 13 checker to confirm it's valid, and check the proposed figure against local market at RentCharter. If it's above the local upper quartile, you may have a case worth taking to the First-tier Tribunal — and under the RRA 2025 the tribunal can only confirm or lower the rent, never raise it.

For the full notice period rules, read our piece on rent increase notice periods in the UK. For how much they could legally ask for in a properly served notice, see how much a landlord can increase rent in 2026. And for the broader framework, our rent increase rights in England guide is the place to start.

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