Date of referendum - 18 September 2025
- publish information statement - Friday 8 August
- notice of referendum - Wednesday 13 August
- deadline for applications to be included on the register of electors to be used at the referendum - Tuesday 2 September
- last day for new applications to vote by post (5pm) (or to change existing absent vote details, for example, cancellation or redirection of ballot papers) - Wednesday 3 September
- last day for new applications to vote by proxy (5pm) - Wednesday 10 September
- last day for new Voter Authority Certificate applications (5pm) - Wednesday 10 September
- publish notice of poll - Wednesday 10 September
- deadline for counting officer to appoint polling or counting observers - Thursday 11 September
- publication of final referendum notice of alteration - Thursday 11 September
- first day to request replacement of lost postal ballots - Friday 12 September
- polling day (7am until 10pm) - Thursday 18 September
- last day for applications to vote by emergency proxy (due to medical/education/employment/Voter ID) and to re-issue lost or spoilt postal ballots (5pm) - Thursday 18 September
- deadline to issue Temporary Voter Authority Certificate (10pm) - Thursday 18 September
- verification and count (10pm) - Thursday 18 September
Richard Flinton, Counting Officer