The ACT Government has revealed it counts exactly how much toilet paper is being used in public bathrooms and by some of its staff amid concerns it is being stolen.

The odd details were explained during a budget estimates hearing after a member of the committee raised concerns public servants were stealing millions of dollars worth of Territory assets.

The director of City Services, Fleur Flanery, told the hearing it was something the directorate watched for.

"Quite recently I was quite concerned that toilet paper was going missing and so we do regularly audit down to how much is bought, how much is consumed both in public toilets and also all the depots," Ms Flanery said.

It followed allegations raised by Liberal MLA Alistair Coe about the large-scale theft of Government property from the Territory and Municipal Services (TAMS) directorate.

"I think it's well known across TAMS that a lot of people call TAMS 'Bunnings' because stuff goes missing," Mr Coe said.

"People have told us that perhaps millions of dollars of portable and attractive assets have gone missing in recent years and especially items that may not be deemed to be portable and attractive but are small scale all the same."

The Government describes portable and attractive assets as those under $5,000 in value, but susceptible to theft for personal use or resale, including computers, mobile phones, hardware and stationery.

Mr Coe offered no evidence for the claims, but denied he was attempting to attack the Government.

Ms Flanery said while no specific concerns had been raised with her, she conceded it was of ongoing interest.

"There has been an internal audit into small and attractive items. It is something that has been a matter of long-standing concern when you're managing lots of items," Ms Flanery said.

The Municipal Services Minister, Meegan Fitzharris, also was not aware of any issues, but said her directorate would check its register to ensure all items were accounted for.

"I have confidence they will be," Ms Fitzharris said.