The five federal politicians disqualified over their citizenship status collected close to $9 million in taxpayer-funded salaries they were not entitled to.

Former deputy prime minister Barnaby Joyce accounts for $2.8 million of that money and his former Nationals deputy Fiona Nash $2.6 million. Both first entered parliament in 2005 and have benefited from ministerial bonuses since 2013.

Barnaby Joyce at the Tamworth Regional Livestock Exchange on Monday. Credit:Peter Hardin

Former Greens senators Scott Ludlam and Larissa Waters were paid $1.8 million and $1.3 million respectively, and One Nation's Malcolm Roberts collected about $266,000 between the 2016 election and Friday's High Court verdict.

All up, they collected a total of $8,769,509 in base salary and ministerial bonuses. The figure - based on an analysis of MP pay rates and positions held over the last 13 years - does not include committee bonuses or any allowances.