When this letter is useful
Use this response when you have received a proposed rent increase and you need a written record of your position. It works for asking for the correct notice, requesting market evidence, making a counter-offer, or saying that you do not agree to the increase as proposed.
From May 1, 2026, GOV.UK guidance says most assured shorthold tenancies in England became assured periodic tenancies. Rent increase rules changed with that shift, so a current response should avoid relying only on old fixed-term AST assumptions.
How to keep the tone strong but reasonable
A good rent increase response is calm, specific, and evidence-led. It should not accuse the landlord of acting unfairly unless you can explain exactly what is wrong. The aim is to create a paper trail that a landlord, agent, adviser, or tribunal could understand quickly.
If you can afford a smaller increase, include a counter-offer. If you cannot judge the increase yet, ask for the comparables the landlord used. If the proposed rent appears above local market rent, say so and attach your evidence.
Important limits
This draft is not a tribunal application and it does not pause any legal deadline by itself. If you have received a formal rent increase notice and want to challenge it, check the deadline on the notice and get advice before the new rent is due to start.