National MP Amy Adams to retire from politics at 2020 election

National MP Amy Adams has announced she will retire from politics at the 2020 election - the second to stand down in an hour.

"I have been incredibly privileged to serve as the MP for Selwyn and a member of the National Party caucus for almost 12 years," she said in a statement on Tuesday.

"Making the decision to step away from politics has not been an easy one but it is the right time for me and my family and I'm looking forward to whatever the future holds."

Adams has been the MP for Selwyn since 2008 and is currently both the Finance spokesperson and the Shadow Attorney General. She says she has chosen to stand down from the spokesperson roles she holds.

"I have every confidence in the National Party under Simon Bridges' leadership and their prospects for the 2020 election," she says.

"My decision is purely about what is right for me and the life I want to lead going forward."