When you can challenge
You can challenge a rent increase if: the proposed rent is above market rate for similar properties in your area, the landlord has not served a proper Section 13 notice, the notice period is less than 2 months, or the increase is more frequent than once per year (from May 2026).
You cannot challenge a rent increase simply because you cannot afford it. The tribunal assesses whether the rent is in line with what similar properties are renting for — not whether it is affordable for you personally.
Step-by-step process
Step 1: Check the notice is valid. Is it a formal Section 13 notice? Does it give at least 2 months' warning? Does it state the new amount and the date it takes effect? If any of these are missing, the notice may be invalid.
Step 2: Gather evidence. Search for similar properties in your area on Rightmove, Zoopla, or SpareRoom. Note the rent, size, condition, and location of comparable properties. Print or screenshot the listings.
Step 3: Apply to the First-tier Tribunal. You must apply before the new rent takes effect. The application form is available on the GOV.UK website. There is no fee to apply.
Step 4: The tribunal assesses. They will determine what the open market rent would be for your property, taking into account its size, condition, location, and the amenities provided. They ignore any improvements you have made as a tenant.
Step 5: The decision is binding. The tribunal sets the rent, and both you and your landlord must accept it.
Warning: The tribunal can set the rent higher than what the landlord proposed if they believe the market rate is higher. Only challenge if you are confident the proposed increase is genuinely above market rate for your area.
Protection from retaliation
Under the Renters' Rights Act 2025, your landlord cannot evict you for challenging a rent increase. If you receive an eviction notice after challenging, this may be retaliatory and the court can refuse to grant possession.