Different businesses have different tax obligations. 

The obligations you have will depend on things like your business structure (for example, sole trader, company or partnership), your annual income, and whether you employ staff. 

You might need to lodge and make payments to the ATO annually, quarterly or even monthly depending on what you are registered for. For example, pay as you go (PAYG) instalments or withholding or goods and services tax (GST).  

If you delay lodging and paying what you owe, these amounts will start to grow as general interest charge (GIC) is applied to your debt. 

Even small, missed payments can snowball as a result of GIC, and the longer amounts are unpaid, the harder they can be to manage.