The buzz and controversy that has seen the Northland byelection dubbed a "buy election" might see a voting trend bucked in more ways than one.
National trends show byelections do not attract the same turnout as general elections but already in Northland more than twice the number of advance votes have been made than during November's general election.
By the end of Saturday, 5526 advanced votes had been cast, compared with 2294 at the same stage in 2014.
Monday's total of 45,578 people on the Northland roll is also expected to increase during the next few days, with Northland Registrar of Electors Deborah Darton reminding voters there are just a few days to go until the byelection on Saturday.
In the 2014 general election, 35,707 people voted, with National candidate Mike Sabin winning by a margin of 9300 against next highest, Labour's Willow-Jean Prime. The byelection, expected to cost taxpayers up to $1 million, was forced by the resignation of Mr Sabin last month.