About the gst / vat calculator
Whether you call it GST, VAT or sales tax, this tool quickly adds tax to a net price or extracts it from a tax-inclusive price. Useful for invoices, shopping and small-business bookkeeping.
Formula used
Add: Total = Amount × (1 + rate/100). Remove: Net = Total / (1 + rate/100).
How to use
Fill in the fields above and the results update instantly. Change any value to compare scenarios. Results are estimates for planning and education and may differ from figures provided by banks, tax offices or doctors.
Frequently asked questions
How do I remove GST from a price?
Choose Remove tax and enter the tax-inclusive amount.
Which rate should I use?
Use the rate that applies to your product and country.