Tally.au

Depreciation Calculator

Calculates depreciation using the ATO prime cost and diminishing value methods.

Your result

Estimate only. Results update as you type.

How this calculator works

Prime cost = cost ÷ effective life. Diminishing value = base value × 200% ÷ effective life.

Worth knowing

Check whether the instant asset write-off applies to your business before depreciating an asset over several years.

Guides for this calculator

Questions

When do I need to register for GST?
When your annual GST turnover reaches $75,000, or $150,000 for non-profits. Taxi and ride-share drivers must register regardless of turnover.
What company tax rate applies?
25% for base rate entities with turnover under $50 million, and 30% for other companies.
Should I talk to an accountant?
Yes, for structure, tax planning and compliance. These calculators give quick estimates only.

This calculator gives general estimates using published Australian rates and formulas. It doesn’t consider your personal circumstances. Check current figures with the ATO, your state government or a qualified professional before making decisions. See our disclaimer.