Retail Sales Tax (RST)
Ministry of Revenue33 King St. W.Oshawa, ON L1H 8H5
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This service is delivered and/or supported by the Provincial Government.
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PO Box 3012, 50 Church Street, St. Catharines ON L2R 7C2
City Hall Hours of Operation: Monday to Friday, 8:30 AM to 4:30 PM
Tel : 905.688.5600 | Fax: 905.682.3631