Brock Township property tax: four instalments and supplementary bills
Brock mails an interim bill in January and a final bill in June, and its 2026 instalments were due February 25 and April 24, then July 24 and September 25. The Township collects tax for itself, the Regional Municipality of Durham and the school boards. A supplementary bill is a separate levy: under the Assessment Act it can cover omitted property for the current year plus up to two preceding years, or an assessment increase for the current year only. You can register for e-billing by December 15 for the interim bill or May 15 for the final bill.
Source: Township of Brock: tax collections and billing (opens in a new tab)