Assistant Treasurer Stuart Robert has been charging taxpayers more than $2000 per month to use the internet at his Gold Coast home.

Mr Robert, who has a masters degree in information technology, racked up monthly bills 20 times higher than the average cost of data provided to other politicians' homes, averaging $1845 during the latest six months of expenses.

Stuart Robert has been charging taxpayers more than $2000 per month to use the internet at his Gold Coast home. Credit:Andrew Meares

In May, the most recent month reported, Mr Robert's internet use cost $2832, or about $90 per day.

The Fadden MP said he used "around" 300 gigabytes of data in that month and the bill was a result of exceeding his data limit of 50GB and having to pay per gigabyte after that.