Water and Sewer Bills for Tenant Occupied Properties

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Effective Oct 1, 2019, the City made changes to the content of courtesy tenant water/sewer bills and notices and made changes to the billing of tenant accounts as a result of report DF2019-23 Tenant Bills Water-Sewer approval by Council on Aug 13, 2019.

Courtesy tenant bill and notice content

The City removed all personal tenant information from water accounts due to privacy concerns.  The City sends the property owner the water/sewer bills and all applicable notices.  If requested by the property owner, a courtesy water/sewer bills and applicable notices for tenants will be sent to the service address and will be addressed to “C/O Tenant.”    

Billing of tenant accounts

As personal tenant information was removed from water/sewer accounts, the City stopped final reads and account roll overs for the change in tenants.  The City will only finalize a water account when there is a change in ownership.  It will be the responsibility of the property owner to calculate what the tenant(s) will owe based off their move in/out date.  If the property owner would like to determine the water/sewer bill charges at a tenant move out/in, please ensure that a meter reading is taken on the date of move out/in.  The City has provided an easy to use calculator below that requires only the previous water/sewer bill and the meter reading for the date of move out/in.

Water and sewer charges are a property debt

As per the Municipal Act, 2001 Reg 581/06, fees and charges for the supply of water and for the use of a sewage system may be added to the tax roll and have priority lien status.  

Should you have any questions, please contact the Water Clerk at (905) 227-6613 ext. 240 or the Manager of Revenues & Accounting at ex 238.

 Calculating Prorated Water / Sewer bills

Please use our Water Sewer Bill Proration Calculations for tenant move outs that don't coincide with the property's water/sewer billing cycle, for bill prepared:

before Mar 21, 2023 - 2022-23 Water Sewer Bill Proration Calculation

after Mar 21, 2023 - 2023-24 Water Sewer Bill Proration Calculation


All you need is the meter readings from the previous and current bills and the number of days from the start of the last bill to the date of move out for the calculation.

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© 2018 The Corporation of the City of Thorold, 3540 Schmon Parkway, PO Box 1044, Thorold ON, L2V 4A7

Hours of Operation: 8:30 a.m. to 4:30 p.m. Monday to Friday

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