A rent increase should never arrive as a vague demand or a difficult conversation without context. For tenants, the immediate concern is affordability. For landlords and portfolio owners, the issue is equally important: a rent review that is poorly evidenced or incorrectly served can create avoidable disputes, delay income and damage a good tenancy. The short answer is that, for the relevant assured periodic tenancies in England, there is no general percentage cap such as 5%,

The New Era of Rent Increase The landscape of UK property management has fundamentally shifted. If you operate within the Private Rented Sector (PRS), the days of informal rent adjustments and buried tenancy clauses are over. Under the Renters' Right Act 2025, which came into full force on 1 May 2026, the rules governing how and when you can increase rent have been entirely rewritten. A Section 13 notice is now the formal, and exclusively lawful, document that a landlord must