Before 1 May 2026
Transitional branch
A notice served before 1 May 2026 continues under the earlier rules even where the proposed new rent begins after 1 May. Under that branch, the tribunal could set an amount above the proposal.
Procedure · Regimes
The notice date selects the branch.
The proposed start date, a later revised proposal and the date on which the tool is opened do not replace the original notice date.
On or after 1 May 2026
Revised branch
For an ordinary assured periodic tenancy within the revised Section 13 route, the notice is subject to the revised process and proposed-rent ceiling.
UNKNOWN is a result
If the notice date is absent, illegible or invalid, both branches remain blocked. The site does not infer a regime from today’s date, the proposed start date, a form filename or a later revised proposal.
Exceptions exist, including some low-cost or social forms, agricultural cases and notices from the earlier regime. The tools do not classify a tenancy’s wider eligibility.