Government says it expects to raise more than £5 million from the toilet tax this year.
The sewerage charge, which tied to the rateable value of homes, was introduced by the Manx Utilities Authority which says it'll need an extra £10 million a year by 2021.
This week, in the House of Keys, North Douglas MHK David Ashford asked MUA chairman Dr Alex Allinson how much the charge will raise this year.
In a written reply Dr Allinson said he expected to collect £5.38 million - at a rate of 98p in the pound.
High ground could see 4 inches of snow on Saturday night
Mountain Road unlikely to open before Monday
Yellow warning for freezing temperatures tonight
School bangers night called off
AK47 and Uzi handed in to police
"No dispute" over Liverpool Ferry Terminal, says main contractor
More weekend bus strikes to come after 10-day walkout?
Minister to face question about bus strike