Castletown commissioners chairman Tony Brown says the local authority has reduced its rates - despite bills rising.
In an update on social media, he said a number of people in the town had expressed doubts the board had cut rates this year.
He says the local authority had reduced both its general and refuse charges this year.
But he added water and sewage rates, set by government, had both risen - explaining why people's total bills have gone up.
Manx firm blasts TT podium with lasers
Woman launches online fundraiser for private neurology treatment
Hundreds of companies set for removal from register
Pharmacy applies to give TLC to former Peel bank
Ballajora bluebell butchery sparks bitter criticism
Your views wanted on moves to cut dentist waiting list
MHK to query car tax changes in Tynwald
Police issue pre-TT warning over licences and insurance