Free business tool

Free online GST calculator for India.

Calculate GST amount, taxable value, invoice total, CGST and SGST. This tool is for quick estimates; your accountant should verify final GST treatment.

Amount

GST Rate

Amount Type

Taxable value₹0

Total GST₹0

CGST estimate₹0

SGST estimate₹0

Invoice total₹0

Why this matters

GST calculation is only one part of accounts work.

Fastbooks is being built to help prepare the full accounting entry around the transaction: party, amount, ledger hint, narration and GST review status.

Sales bills

Estimate GST and prepare sales entry details for review.

Purchase bills

Capture vendor bill details and GST hints before approval.

Accountant review

Keep final tax treatment under human review.

Need help getting started?

Message us about installation, business setup, existing data or the first accounting task.

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