Business enquiries (provinces)

1-800-959-5525 Also written as 1-800-959-5525, +1-800-959-5525, +18009595525, 800-959-5525

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What this department does

This is the main CRA business telephone line for companies and organizations in the provinces. Agents help with GST/HST, payroll deductions, corporate income tax, business numbers, and My Business Account. Use it when the question is about a business account rather than a personal T1 return.

This toll-free line assists with:

  • GST/HST registration and filing
  • Payroll deductions and remittances
  • Corporate income tax
  • My Business Account access
  • Business number (BN) enquiries

Hours of operation

Monday to Friday, 8:00 a.m. to 8:00 p.m. (local time), except holidays. Payroll and GST/HST peak periods can mean longer waits.

Hours can change on holidays and during peak filing periods.

Why to call this department

  • You need to register, update, or ask about a GST/HST account.
  • You have a payroll remittance, T4, or source deduction question.
  • You need help with a corporation income tax return or a business instalment.
  • You cannot access My Business Account or need a business number (BN) explained.
  • You received a business notice and want to confirm what the CRA is asking for.

Why you may have received a call from this number

  • CRA may call a business contact number on file about GST/HST, payroll, or corporate accounts.
  • An agent may return your call after you left a message or requested a callback.
  • A review of a GST/HST return, payroll remittance, or missing business filing can generate a follow-up call.
  • Confirm the number matches this page. A caller who refuses to let you hang up and call back this published line is a warning sign.

Have this ready before you call

  • Business number (BN) and program accounts (RT, RP, RC)
  • Legal business name and owner or director details
  • The notice, period, or payment you are calling about
  • Access to My Business Account if the question is about online services

Other things to know

  • Businesses in the territories should use 1-866-841-1876.
  • CRA will not ask a business to pay a debt with gift cards or cryptocurrency over the phone.
  • If the issue is unpaid tax and you need a payment plan, also see the debt management line.

Related CRA numbers

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