UnitedFuture says it has more than the required 500 signatures to be re-registered as a political party and will take them to the Electoral Commission today.
Leader Peter Dunne said the Commission had told the party it would now take six to eight weeks to check the validity of a small random sample of memberships before approving its application to re-register.
Dunne lost his parliamentary funding as a party leader after United Future voluntarily de-registered because its membership records were out of date.
The party has been told it must now register as a new party.
Dunne said the time required by the Electoral Commission to check signatures was "as unreasonable as it is ridiculous".
"Even if it was to check every one of the memberships, not just a sample, it would not be unrealistic to expect the process to be completed within five working days," Dunne said.
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