Free GST & Tax Calculator
Tax Calculator
Calculate net, tax, and total values
USD ($)
$
Custom or Preset
%
Presets:
Calculation SummaryTax Excl.
Net Base Price$1,000.00
Tax (18%)+$180.00
Grand Total Amount$1,180.00
Tired of manual calculations?
Save Time
Automate your invoicing and never do this math manually again.
Look Professional
Generate stunning PDFs that get you paid 2x faster.
Stay Organized
Keep all your business records in one secure dashboard.
Frequently Asked Questions
How do I calculate GST?
To calculate exclusive GST, multiply the amount by the GST rate (e.g., 18%). To calculate inclusive GST, divide the total amount by (1 + GST rate).
What is inclusive vs exclusive tax?
Inclusive tax means the tax is already included in the total price. Exclusive means the tax is added on top of the base price.
Is this tool free?
Yes, this GST and Tax calculator is 100% free to use, provided by Invoixca.
Can I generate an invoice with this?
Yes! Once you calculate your tax, you can sign up for a free Invoixca account to generate professional, tax-compliant invoices instantly.