Originally scheduled to be held in June 2020, it was delayed a year to 2021 due to the COVID-19 pandemic before being brought forward to its final date.

The parties were partly created to help candidates cope with the 2020 change to an Island-wide voting system, it being considered difficult and expensive for one candidate to reach out to the 30,000 electors, with those holding similar views being able to produce a joint manifesto for a party.

On 16 October 2020, Peter Ferbrache was elected president of the Policy and Resources Committee by a vote of 23–17, ahead of incumbent Gavin St Pier.

[11] For the first time, a Guernsey election was scrutinised by a team of international observers who will produce two reports on the process.

Rick Lowe, a candidate for the Guernsey Party, withdrew from the election following a medical diagnosis.

[19] A small number of candidates paid the cost of sending their expanded manifestos to registered voters.