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Ontario / Taxes & CRA

Find personal and business tax services in Ontario

Prepared by · Sources checked

Where do I find Ontario personal tax, corporation tax and HST services?

CRA handles Ontario personal income tax, corporation income tax and HST. Ontario also retains separate Retail Sales Tax for certain transactions, so an HST question and a provincial RST question can require different authorities.

Where to begin

  1. Open CRA’s Ontario personal package for your tax year; review ON428, applicable credits and ON-BEN where relevant.
  2. If the return belongs to a corporation, use CRA’s Ontario corporation-tax instructions rather than the personal package.
  3. For HST registration, filing or payment, use CRA; Ontario’s HST guide confirms that administrator.
  4. For insurance, benefit plans or a private purchase of a specified vehicle, check Ontario’s separate RST guidance linked from that guide.
  5. Confirm the responsible program before applying for a provincial rebate or making a payment.

Before you open the official service

  • Tax year and whether the filer is a person or corporation
  • Transaction type if asking about sales tax
  • Applicable notices, forms and supporting records

Keep your actual documents and account details off this website. Use the official service’s current checklist before applying.

What to check for your situation

HST does not eliminate every provincial sales-tax task. No credit entitlement, rebate amount or transaction-specific liability is determined here.

Fees, processing times and document rules can change. This page helps you navigate; it does not confirm eligibility or replace the government’s instructions.

Official sources

Prepared by Active K Digital from the linked public guidance. Read our source approach.