Celebrity builder Scott Cam will give up the remainder of his $347,000 taxpayer-funded salary as national careers ambassador due to the coronavirus pandemic, the Federal Government says.

Key points: Mr Cam is foregoing the rest of his salary, or about $172,000

Mr Cam is foregoing the rest of his salary, or about $172,000 Mr Cam drew criticism over his apparent lack of output in the role

Mr Cam drew criticism over his apparent lack of output in the role Employment Minister Michaelia Cash says Mr Cam will continue as careers ambassador

The television tradie's 15-month appointment to the role has been the subject of significant criticism after it was revealed he had only attended one public event and appeared in a handful of social media videos in his first few months as ambassador.

Mr Cam hit out at questions about whether he was providing taxpayers with value for money, even telling one journalist his salary was "none of your business" in a live television interview.

The coronavirus outbreak in Australia, and the associated social restrictions that have shut down workplaces and TAFE colleges, have now hampered his attempts to become more visible.

"The nature of the role of national careers ambassador has also changed with face-to-face events being cancelled," Employment Minister Michaelia Cash said in a statement.

"Mr Cam will continue to work with the Australian Government and the National Careers Institute to amplify online training opportunities and engage with Australians through digital mediums.

"As his role has fundamentally changed, Mr Cam has also volunteered to forego his remaining salary payments over the coming months."

Cam was due to earn $262,000 between October 1, 2019, and the end of this financial year, with a further $85,000 paid from July 1 and the end of his appointment.

He has been paid $175,000 so far, meaning he is giving up the remaining $172,000.

Senator Cash had defended his appointment, arguing he was one of the most high-profile tradespeople in Australia and would bring considerable clout to the Federal Government's efforts to encourage the take up of apprenticeships.