Possession Notice Court-Filing Deadline Calculator
Use this calculator to identify the final date by which possession proceedings should be started where a Section 8 or Section 21 notice was served before 1 May 2026.
It compares the notice-specific validity period with the statutory transitional cut-off of 31 July 2026 and applies whichever deadline comes first.
Calculate the final filing date
Select the notice type and enter the date the notice was served. The result will show the earliest applicable deadline and explain which rule controls.
For Section 8 notices, it compares 12 months from service with 31 July 2026. For Section 21 notices, it compares the standard six-month validity period with 31 July 2026.



