The hst.help (@utoronto.ca) email support account was established in 2010 when the HST was first introduced and was intended to assist with questions during the transition and initial implementation. After an extended period of activation, the email account has been shut down effective immediately.
Information related to HST applicability and Taxation can be found on the Financial Services Departments Taxation page below: https://finance.utoronto.ca/services/tax/
Question related specifically to FIS system tax codes can be directed to your FAST team representative.
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