Self-Employed Tax Set-Aside Calculator
Get a rough set-aside percentage for self-employed income, with GST and provisional-tax prompts for New Zealand sole traders.
What this estimates
Income tax estimate
GST reserve
Student loan estimate
Set-aside percentage
Frequently asked questions
Does this calculate my exact tax bill?
No. It is a planning estimate for sole traders. It does not include every tax credit, adjustment, ACC levy, or personal circumstance.
When should I think about provisional tax?
IRD says provisional tax generally applies when residual income tax from the previous return is more than $5,000. This calculator flags when the estimate is above that level.