Rent Increase Calculator
Work out when you can next serve a Section 13 rent increase notice under the Renters' Rights Act 2025.
How Rent Increases Work Under the RRA 2025
The Renters' Rights Act 2025 fundamentally changes how landlords can increase rent. Under the new rules, rent review clauses in tenancy agreements are no longer enforceable. The only way to increase rent is by serving a Section 13 notice under the Housing Act 1988 (as amended).
You can only increase rent once every 12 months, and you must give at least two months' notice. The proposed new rent must reflect the open market rent for the property. Tenants have the right to challenge the increase by referring it to the First-tier Tribunal (Property Chamber), which determines the open-market rent for the property. Under the Renters' Rights Act, the Tribunal cannot set the rent above your proposed figure — but it could set it at any level below, including below the rent the tenant is currently paying. Landlords should consider this risk carefully before serving a Section 13 notice.
Key Rules to Remember
- Rent increases must use the Section 13 notice procedure — no other method is valid
- Minimum 12 months between increases (from the date the last increase took effect)
- Minimum two months' notice before the increase takes effect
- The increase must reflect market rent for the property
- Tenants can refer any proposed increase to the First-tier Tribunal
Related Resources
This calculator is for guidance only and does not constitute legal advice. Always check the latest legislation at www.gov.uk.