Fast, Clean & Always Accurate

Online GST Calculator India (FY 2026-27)

GST calculator tools shouldn't make everyday arithmetic feel like rocket science. Whether you are an independent freelancer putting together your monthly invoices, a shop owner pricing incoming stock, or an accountant double-checking a supplier's tax breakdown, this free calculator gives you clean, audit-ready numbers in seconds. It automatically splits your taxes into CGST, SGST, or IGST based on current CBIC tax rules. Jump right into the calculator below, or check out our rate slabs breakdown and step-by-step formula guide.

Tax Calculation Statement

Platform: Online GST Tax Calculation Portal

Standards: CBIC & GST Council of India | Date:

₹
₹ Ten Thousand Rupees Only
Or Custom Rate: %
Your Calculation Breakdown Live Math
Net Taxable Base: ₹10,000.00
GST Rate Applied: 18%
Total GST Tax: ₹1,800.00
Total Gross Amount (Payable): ₹11,800.00
Tax Component Split
Central GST (CGST) (9%)
₹900.00
State GST (SGST) (9%)
₹900.00
How the Math Works Step by Step

Here is the plain-English calculation sequence applied to the amount you typed above. To learn the underlying algebra with worked invoice scenarios, visit our dedicated GST Formulas page.

GST Amount = (₹10,000 × 18%) / 100 = ₹1,800.00
Total Invoice Price = ₹10,000 + ₹1,800.00 = ₹11,800.00

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Ensure 100% Tax Accuracy with our GST Calculator

A small rounding error or incorrect tax rate can lead to mismatched returns and stressful notices. Keep your billing clean, consistent, and fully verified.