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Rent increase calculator
Use this if you’ve never increased the rent.
HouseFile reminds you before each rent review date you set.
Every property gets its own file, with a reminder before any certificate expires. When you share documents with your tenant, you'll see when they open each one.
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How rent increases work now
Since 1 May 2026, rent on a private tenancy in England can only go up through a Section 13 notice on Form 4A, with at least two months' notice. The new rent can't start until 52 weeks after the last increase or the start of the tenancy, and must start on the first day of a rent period. Rent review clauses no longer work.
Your tenant can refer the increase to the First-tier Tribunal before it takes effect. The tribunal sets the open-market rent, never more than you proposed, so keep the comparable rents you used and proof of when you served the notice. Email only counts as service if your tenancy agreement allows it.
More detail: how to fill in and serve Form 4A and what landlords must do now the Act is in force.
General guidance for landlords in England, not legal advice. Last reviewed September 2026.