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Rent Increase Planner & Letter Builder
Online app · Renters' Rights Act 2026

Rent Increase Planner & Letter Builder

Under the Renters' Rights Act, rent can only go up once a year with a Section 13 notice on Form 4A and at least two months' notice. This app works out your dates and writes a professional covering letter for you.

£7.99 one-off · Opens in your browser

Visa · Mastercard · Amex · Apple Pay · Google Pay
Secure payment by Stripe on this page. Yours to keep – no subscription.

What's included

  • Earliest date you can serve notice and the earliest new-rent date
  • Checks the once-a-year and first-year rules
  • Increase in £ and % with a market-rent reminder
  • Ready-to-print covering letter to send with Form 4A
  • Checklist of how to serve and keep proof

How it works

  1. Buy once – it unlocks in your account.
  2. Enter tenancy start, last increase, current and proposed rent.
  3. Print the letter and send it with the official Form 4A from GOV.UK.

For assured periodic tenancies in England. Not legal advice. You must use the official Form 4A – the app does not replace it.

Rent Increase Planner & Letter Builder£7.99 · one-off