Electoral Act 2004

The applicable cap on electoral expenditure for an election applies to electoral expenditure incurred during each of the following periods (the capped expenditure period):

(a) for a general election other than an extraordinary general election –

the period starting on 1 January in the year in which the election is to be held and ending 30 days after election day;

(b) for any election to which paragraph (a) does not apply – the period from and including the day of the issue of the writ for the election to the end of 30 days after election day.