Observed arrival · 2026-10-01
Section 13 Form: A Rent-Increase Date Calculator
A browser-based tool for working out when an England Section 13 rent increase can begin, checking a notice, and preparing answers for Form 4A.
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●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- England landlords, agents, and tenants checking notices
- Worth noticing
- The helper says its answers are for copying onto the official Form 4A; the official form itself must still be served.
Field notes
The calculator distinguishes rent frequency and asks for the tenancy start, any previous increase, a recent rent due date, and the notice-service method. Its explanations cover the 52-week limit, two months' notice, and a 53-week adjustment for some weekly or fortnightly tenancies. The page links to official forms and housing guidance, and says information entered into the tool remains in the browser.
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○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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