The Finance Minister-in-waiting is letting nothing slip on coalition negotiations.

National is in talks with ACT and New Zealand First, after special votes revealed all three are needed to form a Government.

A former New Zealand First MP, Andrew Williams, told Mike Hosking this morning leader Winston Peters would want to be Treasurer.

But Nicola Willis wouldn't be drawn on it.

"One of the things that's been really great about this process, and I think you've seen it from David Seymour, from Chris Luxon, from Winston Peters- is our respectful desire not to negotiate via the media."

LISTEN ABOVE

• Winston Peters wants 'a knighthood, deputy Prime Minister and Treasury' - former NZ First MP
• ACT Leader, David Seymour discusses 'triangle' talks to keep all parties in the loop
• Live: 'We can't all get what we want' - Winston Peters wants urgent coalition negotiations; Luxon keen to 'get cracking' on new Govt
• National Deputy Nicola Willis says coalition negotiations are complex