Federal Labor and the Coalition have agreed on legislative changes that will affect the referendum on a constitutionally enshrined Voice to Parliament.

The changes to the legislation, known as the machinery bill, broadly set out how the referendum will be conducted, with amendments likely to be passed this week.

The bipartisan support for proposed amendments to the Act will see an official pamphlet which outlines both the yes and no case distributed nationwide.

A national campaign will also occur to ensure voters understand the process of a referendum and the constitutional changes that would occur should a "yes" vote be successful.

Support from both sides of the chamber drew the praise of Special Minister of State Don Farrell.

"I think it's an example of how (constructively) the government and opposition can work together to get the best result for the Australian people," he said.

Senator Farrell's position was supported by Shadow Special Minister of State Jane Hume.

"We would very much like to (give thanks for) the constructive way in which the government has engaged with the opposition," she said.

Labor did not agree to the Coalition's request for Commonwealth funds to be used for either side of the debate in the lead up to the referendum.

Country Liberal Party senator Jacinta Nampijinpa Price was unhappy with the funding arrangement agreed upon by Labor and the Coalition.

"I'd like for an official yes and no campaign to be funded and if that is not available I will be crossing the floor," Senator Price said.

"Obviously Mr Dutton has his reasons. I'm yet to have a conversation with Mr Dutton but I'd like to be able to have a conversation with (him)."

The deal between the major parties effectively eliminates input from the Greens and Senate crossbenchers, who had proposed amendments to the bill.

They included the Greens' suggestion to expand voting eligibility so people serving a sentence more than three years are able to vote (prisoners serving less than three years can vote currently).

A motion by the Greens to allow on-the-day enrolments is also set to be rejected.

Independent senator David Pocock's suggestion for the traditional media blackout period to include social media is set to be overlooked, along with his proposed changes to donations reform.

The agreement between federal Labor and the Coalition comes as the Referendum Working Group meets in Canberra for the final time before presenting specifics around the wording of the referendum question to the government.

Referendum Working Group member Professor Megan Davis said the 'finishing touches' were being put on the historic change.

"We are so close to finalising our advice so that the government can introduce the constitutional alteration bill into parliament next week," she told reporters.

"So close to doing what grassroots communities across the country have asked for. So close to taking the next historic steps towards a successful yes vote.

"We are putting the finishing touches on this historic change."

The government is expected to publicly announce the specific wording of the Voice referendum question next week.