GST Inclusive / Exclusive Calculator
Add GST to an amount or extract GST from a GST-inclusive amount
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Base Amount
GST
CGST + SGST
Total
GST Inclusive / Exclusive Calculator — Complete Guide & Instructions
MakeCard GST Calculator works in both directions: add GST to a base price or extract the tax from a GST-inclusive amount — the calculation most people get wrong with a simple percentage. Choose the mode, enter the amount, pick a slab (5%, 12%, 18%, or 28%), and instantly see the base amount, the GST component, the CGST + SGST split, and the final total. It is built for Indian shopkeepers, freelancers, accountants, and buyers verifying invoices.
How to Use GST Inclusive / Exclusive Calculator
- 1 Select a mode: "Add GST (Exclusive → Inclusive)" to apply tax on a base price, or "Remove GST (Inclusive → Exclusive)" to back it out.
- 2 Type the "Amount (₹)" — the base price when adding, or the tax-inclusive total when removing.
- 3 Choose the "GST Rate" slab: 5%, 12%, 18%, or 28%.
- 4 Read the results: Base Amount, GST charged, the CGST + SGST halves, and the Total.
Key Features & Capabilities
- Two-way calculation — add GST to a net price or extract it from a gross price.
- All four standard Indian GST slabs: 5%, 12%, 18%, 28%.
- Automatic CGST + SGST split showing each half of the tax for intra-state billing.
- Correct reverse-calculation formula (GST = inclusive × rate ÷ (100 + rate)), not naive percentage.
- Indian-rupee formatted output on all four result cards.
- Instant live recalculation — no submit button needed after the first entry.
Supported Formats & Specifications
| Parameter | Specification |
|---|---|
| Modes | Add GST (exclusive → inclusive) and Remove GST (inclusive → exclusive) |
| Tax Slabs | 5%, 12%, 18%, 28% |
| Outputs | Base amount, GST amount, CGST (half), SGST (half), total |
| Reverse Formula | GST = inclusive amount × rate ÷ (100 + rate) |
| Access | Free, unlimited, client-side |
Practical Everyday Use Cases
- Shopkeepers pricing goods — turning a cost price into a GST-inclusive MRP.
- Verifying whether an invoice correctly charged 18% on the base amount.
- Freelancers extracting the GST portion of a received payment for return filing.
- Buyers checking how much tax is hidden inside an advertised inclusive price.
- Accountants computing the CGST and SGST halves for intra-state invoices.
Pro Tips for Best Results
- To find GST inside an inclusive price, never subtract a flat percentage — use the Remove GST mode, which applies the correct reverse formula.
- CGST + SGST each equals half the GST rate on intra-state sales; interstate sales charge IGST at the full rate instead.
- Goods and services fall into different slabs — confirm the correct rate on the CBIC rate finder before invoicing.
- For MRP labelling, the printed price must already be GST-inclusive — use Add GST mode to set it.
Common Problems & Solutions
A common mistake is taking 18% of the inclusive total, which overstates the tax. The Remove GST mode uses rate ÷ (100 + rate) — e.g., ₹1,180 inclusive at 18% contains ₹180 GST, not ₹212.40.
The tool covers the four main slabs (5/12/18/28). Special rates like 0.25% (precious stones) or 3% (gold) can be computed manually with the same formula.
Privacy & Security
100% Client-Side Execution
Amounts are calculated entirely in your browser — no figures are transmitted or stored.
Frequently Asked Questions
Everything you need to know about using GST Inclusive / Exclusive Calculator
Multiply the base amount by the rate and divide by 100: ₹1,000 at 18% = ₹180 GST, total ₹1,180. The Add GST mode does this instantly.
GST = inclusive amount × rate ÷ (100 + rate). At 18%, ₹1,180 inclusive → ₹180 GST and ₹1,000 base. Choose the Remove GST tab and enter the inclusive figure.
Within a state, GST splits equally into CGST (centre) and SGST (state). Between states, the full rate is charged as IGST. This tool shows the CGST + SGST halves automatically.
Most services are 18%, many essentials 5%, processed foods and common goods 12%, and luxury/sin goods 28%. Always verify your item's HSN code on the CBIC portal.
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