Media blackouts, mobile polling booths and donation caps are all on the table to get the Indigenous voice over the line.

The Albanese government is preparing to make changes to how the referendum is conducted in the hope of garnering support from across parliament.

The amendments include a broadcasting blackout, which will restrict TV advertisements up to three days before the vote.

The threshold for disclosing donations will be frozen at $15,200, scrutineer numbers boosted and mobile polling periods extended in remote areas.

The changes won’t be enough to convince the coalition but could clinch support from the Greens and some independents.

The coalition wants “yes” and “no” campaign organisations set up to provide information, with equal public funding for both sides, but Labor is not budging.