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GST Calculator
Calculate GST inclusive and exclusive amounts quickly
Actions:
How to Use
1Enter the base amount
2Select the GST rate percentage
3Choose inclusive or exclusive calculation
4View the GST amount and total
Features
GST inclusive calculation
GST exclusive calculation
Custom GST rate support
Common rate presets (5%, 12%, 18%, 28%)
Instant results
Benefits
Quick tax calculations for invoices
Verify GST on receipts
Business accounting support
Frequently Asked Questions
What GST rates are supported?
Common rates like 5%, 12%, 18%, and 28% are preset, plus you can enter any custom rate.
What is the difference between GST inclusive and exclusive?
GST exclusive means tax is added on top of the base price. GST inclusive means the tax is already included in the total.
Can I use this for other tax rates?
Yes. You can enter any custom tax percentage for VAT, sales tax, or other tax calculations.