GST Calculator is a verified tax & gst compliance calculation tool on Calcify. Calculate GST Exclusive and GST Inclusive amounts with quick slab tabs, manual custom GST %, and automatic CGST, SGST, and IGST splits. All calculations execute locally in your browser with multi-currency support, visual breakdowns, and white-label client exports.
Mode: GST Exclusive (+GST added) | Total GST (18%): ₹9,000.00 | CGST (9%): ₹4,500.00 + SGST (9%): ₹4,500.00 | IGST (18%): ₹9,000.00
Exclusive: GST = Amount × (Rate/100), Total = Amount + GST; Inclusive: Taxable = Amount / (1 + Rate/100), GST = Amount − Taxable; CGST = SGST = GST / 2
Example Inputs: Invoice / Base Amount: ₹50000 · GST Slab Rate (%) — Select Slab or Enter Manual %: 18 · GST Calculation Mode (Exclusive / Inclusive): exclusive
Example Output: Final Invoice Value (Including 18% GST): ₹59,000.00 (Mode: GST Exclusive (+GST added) | Total GST (18%): ₹9,000.00 | CGST (9%): ₹4,500.00 + SGST (9%): ₹4,500.00 | IGST (18%): ₹9,000.00)
The GST Calculator on Calcify applies the verified mathematical formula: Exclusive: GST = Amount × (Rate/100), Total = Amount + GST; Inclusive: Taxable = Amount / (1 + Rate/100), GST = Amount − Taxable; CGST = SGST = GST / 2. Every input is validated in real time with multi-currency formatting to ensure zero rounding or division errors.
Supports standard Indian GST slabs (0.25%, 3%, 5%, 12%, 18%, 28%) as well as any custom manual GST percentage, in both GST Exclusive and GST Inclusive modes.
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