The Short Answer: There is no automatic percentage—but there is a process Landlords often ask whether a 3%, 5% or 10% rent increase is permitted. For most private rented homes in England, the answer is not a simple percentage. Since 1 May 2026, the Renters' Rights Act framework has required private landlords to use a clearer, more consistent route: for an assured periodic tenancy, rent can ordinarily be increased once in each year, not during the tenancy's first year, and onl