Rent Increases

Section 13 Rent Increase Notice Calculator

Since 1 May 2026, all assured tenancies are periodic and the only way to raise rent is a Section 13 notice on Form 4A. Notice must be at least 2 months, and rent can only be increased once every 52 weeks (a strict 364 day gap). Rent cannot be increased at all in the first 12 months of a new tenancy. Enter your dates to find the earliest date your increase can take effect.

Date of last rent increase

Leave blank if the rent has never been increased under this tenancy.

Date you plan to serve Form 4A

Current rent

Proposed rent

This calculator covers Section 13 rent increases for assured periodic tenancies under the Renters' Rights Act, in force from 1 May 2026. It does not cover rent review clauses agreed directly between landlord and tenant. This tool is for guidance only and does not constitute legal advice.

Serve Form 4A the right way

STEMHQ dates and tracks every Section 13 notice, enforcing the 2-month and 52-week rules per tenancy so an increase is never set aside on a technicality.

Start free