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Calculate inclusive and exclusive GST amounts with CGST and SGST splits for all GST tax slabs (5%, 12%, 18%, 28%).
GST Rate: 18% (9% CGST + 9% SGST)
Calculations follow official federal and central bank guidelines (IRS, RBI), statutory tax provisions, and standardized actuarial compounding.
Why our math is exact vs other portals →The GST Calculator (Goods and Services Tax) is built to eliminate financial ambiguity by applying exact Indian financial mathematics rather than generic, oversimplified online estimates.
Whether evaluating interest liability on bank credit, calculating compounding acceleration on systematic investments, or forecasting net post-tax maturity values, accurate forecasting ensures you never misjudge your cash flow or long-term corpus.
Evenly split into CGST (Central GST) and SGST (State GST) for intra-state transactions.
Outdated tax slabs or omitting the latest standard deduction ₹75,000
Budget 2024 & Finance Act updated: ₹75,000 standard deduction, Section 87A ₹7 Lakh threshold, and post-budget capital gains.
In India, retail lending follows RBI guidelines on reducing balance compounding and External Benchmark Linked Lending Rates (EBLR/RLLR). Fixed deposits follow RBI quarterly compounding mandates, while mutual fund equity investments adhere to SEBI NAV timing and post-Budget 2024 capital gains tax provisions (12.5% LTCG over ₹1.25L).
₹50,000 service at 18% standard GST rate.
Total GST = ₹9,000 (CGST: ₹4,500 + SGST: ₹4,500). Total bill amount = ₹59,000.
New Regime includes ₹75,000 standard deduction for salaried employees and Section 87A full tax rebate up to ₹7,00,000.
| Income Bracket | New Tax Regime Rate | Old Tax Regime Rate | Deductions Permitted? |
|---|---|---|---|
| ₹0 to ₹3,00,000 | Nil | Nil | Tax Free |
| ₹3,00,001 to ₹5,00,000 | 5% | 5% | Old: 80C, 80D, HRA | New: Std ₹75k only |
| ₹5,00,001 to ₹6,00,000 | 5% | 20% | Old: 80C, 80D, HRA | New: Std ₹75k only |
| ₹6,00,001 to ₹7,00,000 | 10% | 20% | Old: 80C, 80D, HRA | New: Std ₹75k only |
| ₹7,00,001 to ₹9,00,000 | 10% | 20% | Old: 80C, 80D, HRA | New: Std ₹75k only |
| ₹9,00,001 to ₹10,00,000 | 15% | 20% | Old: 80C, 80D, HRA | New: Std ₹75k only |
| ₹10,00,001 to ₹12,00,000 | 15% | 30% | Old: 80C, 80D, HRA | New: Std ₹75k only |
| ₹12,00,001 to ₹15,00,000 | 20% | 30% | Old: 80C, 80D, HRA | New: Std ₹75k only |
| Above ₹15,00,000 | 30% | 30% | Old: 80C, 80D, HRA | New: Std ₹75k only |
For intra-state sales (within same state), GST is split 50-50 into CGST and SGST. For inter-state sales (between different states), the entire tax is paid as IGST (Integrated GST).
Compare tax liability between Old and New Tax Regime for FY 2024-25 & FY 2025-26 with Section 87A rebate.
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Side-by-side comparison of tax liability under Old vs New Tax Regime for FY 2024-25 & FY 2025-26.
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