The standing charge for both tap water and waste water services will increase above inflation.
The sole States shareholder in Guernsey Water, the STSB, has lodged the legislation with the Greffe for inclusion in the December billet.
It proposes increasing the standing charge for tap water by 4.5% and the standing charge for wastewater by 4.1%.
The usage charge for drinking water will go up by 8.8%.
The wastewater usage charge also goes up for both domestic and business customers.
Inflation in Guernsey is currently 3.3%.
The STSB is also applying to vary mooring, airport and waste dumping charges.
Rents in Guernsey increase again
Plans to clear Leale's Yard for major regeneration of the north of Guernsey
Guernsey children design marine-themed bins for beaches
Guernsey donates 5,000 bikes to Africa and counting
Guernsey FC receives financial support from local entrepreneurs
Guernsey footballer Alex Scott called up to England squad
Guernsey's skin cancer rates higher than England
Guernsey ambulance subscriptions to increase by 1p a day
