Allegations of branch stacking within the Victorian Liberal Party have led to the resignation of an electorate staffer, the day before Prime Minister Malcolm Turnbull is expected to call a federal election.

The party's administrative committee met on Thursday night and discussed allegations people had been signed up improperly in the Menzies seat of former defence minister Kevin Andrews.

It is understood the issue involved fewer than 20 memberships.

News Corp had alleged signatures were forged and people were signed up to the party without their knowledge and that an electorate officer for Mr Andrews has since resigned.

Victorian Liberal state director Simon Frost said the party did not comment on internal matters.

A spokeswoman for Mr Andrews said earlier on Friday it was "a matter for the Victorian Liberal Party" and has been contacted regarding the resignation of the electorate officer.

AAP