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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

Suggested set-aside

0%

Total estimated reserve

$0

Income tax estimate

$0

GST reserve

$0

Estimate ready.

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.