Tax split calculator
Separate net and tax amounts, then allocate the tax between two named components.
Runs on your deviceWorks offline after setupAll Business tools
Enter your values, then choose Calculate. Results stay on this device.
Limits
- Amounts use two decimal places; rates/shares accept four, from 0% to 100%. For included tax, net rounds first and tax is the remainder. Component A rounds half away from zero; B receives the remaining tax so the components reconcile exactly. This is a user-defined allocation, not a statutory GST-component or tax-liability calculation.
- Money inputs support 2 decimal places unless stated otherwise. Use one currency consistently. These estimates are not financial, tax or legal advice.
- Physical phones and real Safari remain unverified.
What happens to your data
Tax split calculator runs inside this browser tab, and the page's code comes from this site. There is no application server to receive your data, and the site's security policy limits connections to this site.
Good to know
- Amounts use two decimal places; rates/shares accept four, from 0% to 100%. For included tax, net rounds first and tax is the remainder. Component A rounds half away from zero; B receives the remaining tax so the components reconcile exactly. This is a user-defined allocation, not a statutory GST-component or tax-liability calculation.
- Money inputs support 2 decimal places unless stated otherwise. Use one currency consistently. These estimates are not financial, tax or legal advice.
- Physical phones and real Safari remain unverified.