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Tax & Money

What is the main difference between TFN and ABN?

Answered by LandedAU · 2026-06-17

TFN vs ABN - Key Differences

TFN vs ABN: Main Differences

Tax File Number (TFN)

  • Who gets it: Individuals (employees, students, job seekers)
  • Purpose: Tracks your personal tax and welfare payments
  • Format: 9 digits (e.g., 123 456 789)
  • Required for: Working in Australia, claiming tax deductions, receiving government benefits
  • Cost: Free to apply

Australian Business Number (ABN)

  • Who gets it: Businesses and self-employed people
  • Purpose: Identifies your business for tax and GST purposes
  • Format: 11 digits
  • Required for: Running a business, invoicing clients, registering for GST
  • Cost: Free to apply

Quick Comparison

  • TFN = Personal tax identification
  • ABN = Business tax identification
  • You can have a TFN and an ABN if you're self-employed
  • Employees only need a TFN
  • Business owners need an ABN

How to Apply

  • TFN: Apply through the Australian Taxation Office (ATO)
  • ABN: Apply through the Australian Business Register (ABR)
  • Both are free and can be done online

Useful Links

This is general information only. Check official sources before acting.

This is general information only. Always check official sources before acting. ← More questions

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