Calculate your new rent, the increase amount and Form 4A notice deadline.
Rent can only be increased once per 12 months · Minimum 2 months notice required
• Rent can only be increased once per 12 months
• Must use Form 4A (new prescribed format from 1 May 2026)
• Minimum 2 months notice before the new rent takes effect
• New rent must start on the first day of a tenancy period
• Tenant can refer to the First-tier Tribunal to challenge the amount
• Tribunal sets a market rent — which could be lower, same or higher