Rent increase date calculator
Rent can go up at most once every 12 months, not within the first 12 months of a tenancy, and you need to give at least 2 months' notice. Enter your dates to see when the new rent can start.
Not yet reviewed by a solicitor. This tool follows the rules as we understand them. Check the official guidance before you give notice.
How it works
We take three dates and use the latest: the day you give notice plus 2 months, the day the tenancy started plus 12 months (for the first increase), and the day the last increase took effect plus 12 months.
Example: the tenancy started on 1 March 2026 and the rent hasn't gone up yet. You give notice on 1 October 2026. 2 months' notice takes you to 1 December 2026, but the first increase can't take effect until 12 months after the tenancy started, on 1 March 2027. The later date applies, so the new rent can start on 1 March 2027 at the earliest.
The law behind it
For assured periodic tenancies in England, the landlord proposes a new rent with a notice under section 13 of the Housing Act 1988, as changed by the Renters' Rights Act 2025, using the prescribed form (Form 4A).
Questions
How much notice do I need to give for a rent increase?
At least 2 months, using the official notice form. For an assured periodic tenancy that's Form 4A.
Can the rent go up in the first year of a tenancy?
Not with a notice of increase. The first increase can't take effect until 12 months after the tenancy started. After that, the rent can go up at most once every 12 months.
Can the tenant challenge the increase?
Yes. The tenant can ask the First-tier Tribunal (Property Chamber) to decide the rent before the increase takes effect.
Is this calculator legal advice?
No. It follows the rules as we understand them and hasn't been reviewed by a solicitor yet. Check the official guidance before you give notice.
This page is general information about England, not legal advice. Rules change and every tenancy is different; if your situation is unusual, speak to a solicitor.