Business Calculators
Calculators for GST, profit margins, hourly rates, and invoicing.
GST Calculator
Add or remove 15% GST from any amount. Quick and accurate for NZ businesses.
Profit Margin
Calculate profit margin, markup percentage, and required selling price.
Hourly Rate
Convert your hourly rate to weekly, monthly, and annual gross income.
Invoice Due Date
Calculate payment due dates based on invoice date and payment terms.