ADELAIDE man Anders Holmdahl has started a legal challenge against compulsory voting and the Constitution.

The case has the potential to change the Australian Constitution.

He says he is determined to rid Australia of compulsory voting by taking his fight to the High Court for a legal definition of the word "vote" which doesn't appear in the Constitution.

The Macquarie Dictionary definition of vote is a "formal expression of free will", which was contradicted by being forced to vote, Mr Holmdahl said.

Kevin Borick, QC, for Mr Holmdahl, filed notice of the challenge to the Constitution in the Adelaide Magistrates Court last Friday.

He has written to all state attorneys-general seeking their opinions on the challenge and is now waiting to hear whether they will support the action.

The challenge was adjourned yesterday for hearing in the Adelaide Magistrates Court next month.