Some employers ask casual workers for an ABN. Here's when you need one and when you don't.
An Australian Business Number (ABN) is a unique 11-digit number that identifies your business to the government. Many casual workers wonder whether they need one.
The short answer If you're a genuine employee (even casual), you don't need an ABN. If you're being engaged as an independent contractor, you do.
Employee vs contractor — the key question The ATO has specific criteria. Signs you're an employee: paid by the hour, work under direction, use employer's equipment, integrated into operations. Signs you're a contractor: paid per job, control how and when work is done, provide own tools.
What if an employer asks for your ABN? Some employers engage people as contractors to avoid payroll obligations. Before complying, consider whether the arrangement genuinely meets the contractor criteria. If it doesn't, you may be a "sham contractor" which is illegal under the Fair Work Act.
When you might genuinely want an ABN If you do genuinely freelance work across multiple clients (photography, graphic design, copywriting), an ABN makes sense. Get one free from the ATO at abr.gov.au.
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