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what is tin number in canada

In Canada, “TIN number” just means your tax identification number, and there isn’t one thing literally called a “TIN.” Instead, Canada uses a few different numbers that function as TINs for the Canada Revenue Agency (CRA).

Quick Scoop: What is a TIN number in Canada?

When someone says “TIN number in Canada,” they usually mean one of these identifiers used for tax and reporting:

  • Social Insurance Number (SIN) – for most individuals
  • Business Number (BN) – for businesses and organizations
  • Individual Tax Number (ITN) – for non-residents or people not eligible for a SIN but who must file Canadian taxes

So, in Canada:

  • Your SIN is normally your “TIN” as an individual.
  • Your BN is your “TIN” as a business.
  • Your ITN is your “TIN” if you’re a non-resident who still has Canadian tax obligations.

Types of “TIN” in Canada

1. Social Insurance Number (SIN)

  • 9‑digit number for individuals (e.g., 123‑456‑789).
  • Used for:
    • Filing personal income tax with the CRA
    • Employment/payroll reporting
    • Government benefits and credits (EI, CPP, child benefits)
  • Issued by Service Canada to citizens, permanent residents, and some temporary residents.

2. Business Number (BN)

  • 9‑digit number assigned by the CRA to businesses and other entities.
  • Used for:
    • Corporate income tax
    • GST/HST
    • Payroll deductions
    • Import/export and other federal tax accounts
  • You get it when registering a business or opening CRA business accounts.

3. Individual Tax Number (ITN)

  • 9‑digit number often starting with “9.”
  • For people who:
    • Are not eligible for a SIN (often non-residents)
    • Still need to file Canadian tax returns or claim Canadian tax credits
  • Requested from the CRA, usually using Form T1261.

Why the term “TIN” causes confusion

  • “TIN” is a generic international term used by banks, foreign tax forms, and global companies.
  • The CRA itself usually talks about SIN, BN, ITN instead of “TIN.”
  • If a foreign bank or platform asks you for your “Canadian TIN,” they’re almost always asking for:
    • Your SIN (if you’re an individual Canadian taxpayer), or
    • Your BN (if it’s a business account).

If an overseas form says “Provide your TIN (for Canada),” imagine it as “Provide your SIN/BN/ITN, whichever applies to you.”

Mini FAQ

Is my SIN my TIN in Canada?

  • For most individuals living and working in Canada: yes , your SIN is your functional tax identification number.

Does every Canadian have a TIN?

  • Most residents who work, study, or receive benefits have a SIN.
  • Only businesses have BNs.
  • Only non-residents who need to file Canadian taxes get ITNs.

What do I enter online if a form asks “TIN (Canada)”?

  • Personal banking / investment / foreign tax forms:
    • Use your SIN if you’re an individual resident taxpayer.
  • Business registrations or business bank accounts:
    • Use your BN.
  • If you’re a non-resident with no SIN but a CRA tax file:
    • Use your ITN.

TL;DR:
There is no single official “TIN number in Canada” label. For tax identification, Canada uses SIN (individuals), BN (businesses), and ITN (non‑residents), and any time a form asks for your “Canadian TIN,” you plug in whichever of those applies to you.

Information gathered from public forums or data available on the internet and portrayed here.