How to Increase Rent in England 2026 (Form 4A)

Since 1 May 2026, there’s one way to increase rent: the statutory form under Section 13. Get it wrong and the notice is invalid. Your tenant keeps paying the old rent and you start again from scratch.

Use this checklist before serving the notice.

The checklist

Check eligibility. You can’t increase rent within the first 52 weeks of the tenancy, or within 52 weeks of the last increase. One increase per year, no exceptions. Not sure of your date? See when you can next increase rent.
Set a market rent. The proposed rent should be in line with the local market. If your tenant challenges and the tribunal finds it’s above market rate, they’ll set a lower figure. Do your homework first.
Use the right form. You must use the government-issued Form 4A. The old Form 4 has had no legal effect since 1 May 2026. You can generate yours here.
Get the effective date right. The date the new rent starts must fall on the first day of a rental period and be at least 2 months after you serve the notice.
Serve it properly. Every tenant named on the tenancy must receive their own copy. If you miss one, the notice may be invalid.
Include a covering letter. A brief plain-English letter explaining the increase can reduce disputes and show good faith.

Don’t confuse the 52-week gap with the 2-month notice

These are separate rules. The 52-week gap is the minimum time between the effective dates of increases. The 2-month notice is how far in advance you must serve the form. You need to satisfy both. Getting one right doesn’t cover the other.

Common mistakes that invalidate a notice

Using the wrong form: old forms or DIY letters don’t count
Insufficient notice: the effective date must be at least 2 months after the notice is served
Effective date doesn’t land on a rental period start: even a day off makes it invalid
Increasing too soon: within 52 weeks of the tenancy start or the last increase
Not serving every tenant individually: each named tenant needs their own copy

What happens next

Your tenant has three options: accept the increase, do nothing (the new rent takes effect automatically on the proposed date), or challenge it at the tribunal before the effective date. If challenged, the old rent stays in place while the case is pending. Once the tribunal decides, the determined rent applies going forward and can never exceed the figure you proposed.

For serving dates and notice validity, use the 52-week rule guide before you generate the Form 4A notice.

Frequently asked questions

Since 1 May 2026, at least 2 months before the proposed effective date. This applies to all private tenancies in England regardless of whether rent is paid monthly or annually.

Once per year maximum. The effective date of a new increase must be at least 52 weeks after the tenancy started and at least 52 weeks after any previous increase took effect. The 2-month notice period is a separate requirement. Both rules must be satisfied.

A notice is invalid if it uses the wrong form, gives less than 2 months' notice, proposes an effective date that isn't the start of a rental period, or proposes an increase within 52 weeks of the tenancy starting or the last increase. An invalid notice has no legal effect. The old rent continues until a fresh valid notice is served.

Yes, by applying to the First-tier Tribunal before the effective date. The tenant can submit the application for free, which keeps the old rent in place while the case is pending. There is then a £47 payment for the government to process it. The tribunal assesses open-market rent, but under the Renters' Rights Act 2025 it cannot set rent higher than the landlord's proposed figure. The worst outcome is the proposed rent is confirmed.

The notice has no legal effect. Your tenant can apply to the tribunal under section 14(A3) of the Housing Act 1988 to have it ruled invalid, and the old rent continues. You must serve a fresh valid notice and restart the clock, potentially losing months.