- CT23 / Annual Returns / EFF Declaration
- Insurers
- Waivers
- Authorizing or Cancelling a Representative [PDF - 321 KB]
Complete this form to authorize the release of confidential information about the Corporations Tax, Mining Tax or Electricity Act account(s) to a representative or to cancel an existing authorization. - Application for Refund under the Ontario Tax Exemption for Commercialization [PDF - 100 KB]
This form is to be used when claiming the Refund under the Ontario Tax Exemption for Commercialization. - ServiceOntario
This link provides access to a number of services for businesses. - Schedules
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