Election timetable
This is the election timetable for the 2021 Mayor of London and London Assembly elections, along with the timetable for the by-elections that are being held in Cranford ward and Hounslow Heath ward on the same day as the Mayor of London and London Assembly elections.
Please note that the timetables may change in the event of days being appointed for public thanksgiving or mourning.
| Event | Mayor of London and London Assembly elections | Cranford ward by-election/Hounslow Heath ward by-election | Action |
| Publication of Notice of Election | Monday 22 March 2021 | Monday 22 March 2021 |
Click here to view Mayor of London and London-wude Assemby Member Notice of Election Click here to view South West constituency Notice of Election Click here to view Cranford ward and Hounslow Heath ward Notice of Election |
| Delivery of nomination papers | On any working day during the hours stated on the notice of election until 4pm on Tuesday 30 March 2021 | On any working day during the hours stated on the notice of election until 4pm on Thursday 8 April 2021 |
Click here for more information on how to stand as a South West Constituency Assembly Member candidate Click here to download Hounslow Heath ward by-election nomination paper |
| Deadline for delivery of nomination papers | 4pm on Tuesday 30 March 2021 | 4pm on Thursday 8 April 2021 | |
| Deadline for withdrawals of nomination | 4pm on Tuesday 30 March 2021 | 4pm on Thursday 8 April 2021 | |
| Deadline for notification of appointment of electon agents | 4pm on Tuesday 30 March 2021 | 4pm on Thursday 8 April 2021 |
Click here to view Cranford ward by-election Notice of Election Agents Click here to view Hounslow Heath ward by-election Notice of Election Agents |
| Publication of first interim notice | Tuesday 30 March 2021 | Thursday 8 April 2021 | |
| Publication of Statement of Persons Nominated | Not later than 4pm on Thursday 1 April 2021 | Not later than 4pm on Friday 9 April 2021 |
Click here to view Mayor of London election Statement of Persons Nominated notice Click here to view South West Constituency election Statement of Persons Nominated Click here to view Cranford ward by-election Statement of Persons Nominated Click here to view Hounslow Heath ward by-election Statement of Persons Nominated |
| Deadline for receiving applications for registration | Monday 19 April 2021 | Click here to register to vote | |
| Deadline for new postal vote applications and for changes to existing postal or proxy votes | 5pm on Tuesday 20 April 2021 | Click here to download a postal vote application | |
| Deadline for receiving new applications to vote by proxy (not postal proxy or emergency proxies) | 5pm on Tuesday 27 April 2021 | Click here to download a proxy vote application form | |
| Publication of notice of poll | Not later than Tuesday 27 April 2021 | ||
| Publication of final election notice of alteration | Wednesday 28 April 2021 | ||
| Deadline for notification of appointment of polling and counting agents | Wednesday 28 April 2021 | ||
| First date that electors can apply for replacements for lost postal votes | Thursday 29 April 2021 | ||
| Deadline for notification of appointment of sub-agents | Tuesday 4 May 2021 (Mayor of London and London Assembly elections only) | ||
| Polling day | 7am to 10pm on Thursday 6 May 2021 | Click here to find your polling station | |
| Last time that electors can apply for a replacement for spoilt or lost postal votes | 5pm on Thursday 6 May 2021 | ||
| Deadline for emergency proxy applications | 5pm on Thursday 6 May 2021 | Click here for more information on emergency proxy vote applications | |
| Last time to alter the register due to clerical error or court appeal | 9pm on Thursday 6 May 2021 | ||
| Deadline for return of election expenses | Not later than 35 calendar days after the date the election result is declared* | ||
*If you are a Mayor of London or London-wide Assembly Member election candidate, the deadline to return your election expenses to the Greater London Returning Officer is not later than 70 calendar days after the date the election result is declared. If the last day of the period falls on a weekend, bank holiday or any day appointed for public thanksgiving or mourning, the last day moves to the next working day.
