Both National and the Greens say they still would not work with Winston Peters, despite the police decision clearing New Zealand First of any wrongdoing over the party's donations returns.
The police say they are satisfied no offence was committed by New Zealand First failing to declare an $80,000 payment from the Spencer Trust in 2007.
National's leader John Key is still refusing to consider any kind of post-election deal with New Zealand First leader Winston Peters, while the Green Party says until other allegations have been investigated, they would not want him in Cabinet.
The police investigation is the third to clear New Zealand First of any wrongdoing in relation to donations to the party, following earlier decisions by the Electoral Commission and the Serious Fraud Office.
Mr Key says Mr Peters was still found to have misled parliament.
The Green Party cited fresh allegations that New Zealand First accepted donations from the wealthy Vela family in return for policy gains.
Greens co-leader Jeanette Fitzsimons says regardless of the police decision, her concerns about working with him remain.