Section 13 notice checker
Enter the dates from a Section 13 notice of a rent increase (form 4A, or form 4 for notices served before 1 May 2026). This page compares them with section 13 of the Housing Act 1988 and the guidance from GOV.UK and Shelter, shows the rule next to each result, and works out the last day to apply to the tribunal. It can only check what you enter, and where the answer depends on something it doesn't know, it says so. Nothing you enter is stored.
This is information, not legal advice. For advice about your situation, contact Shelter (0808 800 4444) or a local renters' union.