The Labour Party needs to stop being vague and "flesh out" its tax policies to win back voters says political analyst Bryce Edwards.
Mr Edwards comments come after the latest Newshub-Reid Research poll which shows Labour taking its first dip since their new leader Jacinda Ardern took over.
National registered an approval rating of 47.3 per cent compared to Labour's 37.8 per cent in last night's poll.
Mr Edwards says the poll is showing that voters aren't resonating with Labour's tax policies.
"It's quite a big issue for voters.
"There are some problems with their vagueness on capital gains tax, their lack of clarity and of course National is hitting them hard on that."
He believes Ms Ardern should come out and be more upfront with her party's tax policies.
"Labour needs to take a bit of a more solid approach to taxation and be willing to flesh out some of those details."
Mr Edwards says the 1 NEWS Colmar Brunton poll out tomorrow night will confirm whether Labour has taken this massive dip.
The next 1 NEWS Colmar Brunton poll will be released Thursday, September 14, on TVNZ's 1's 6pm bulletin and online on 1 NEWS NOW.