In short:

Several independent candidates have received from $15,000 through to more than half a million dollars from political funding body Climate 200 ahead of the election.

About half of the independent candidates backed by Climate 200 disclosed their donations so far to the ABC, in a move that integrity experts say should be the norm. 

What's next?

New federal donation disclosure laws will come into effect next year which experts say will promote election transparency.

Political funding body Climate 200 is bankrolling up to 75 per cent of campaign costs for several independent candidates this election.

Analysis by the ABC suggests 19 candidates being backed by Climate 200 have on average received about 40 per cent of their donations from the donor organisation.

In a landscape where donations are normally shrouded in secrecy during the campaign, declaring in real-time is a significant nod to transparency.

Climate 200, which describes itself as a "crowd-funded initiative" committed to "restoring integrity to politics", supported the election of several "teal" independents in 2022.

The group, which has insisted its support comes with "no strings attached", made $5.96 million in declared donations in 2022, according to disclosure documents made public after the May poll.

This year, Climate 200 has ramped up its support for a larger swathe of candidates across the nation.

The disclosed value of Climate 200 donations, which only accounts for roughly half of the candidates it is supporting this federal election, exceeds $3 million.

The value of donations differed vastly from candidate to candidate, ranging from $15,000 through to more than half a million dollars.

The ABC approached all 35 candidates Climate 200 has listed publicly as beneficiaries of its fundraising.

Just over half, or 19, were willing to provide information about their donors and the value of donations.

The remaining 16 either refused to provide the information, or did not respond to questions from the ABC.