Instantly Add or Remove GST — Both Directions, Any Rate
Convert GST-inclusive prices to exclusive (remove GST) or add GST to exclusive prices to get the inclusive total. Supports India (5%, 12%, 18%, 28%), Australia (10%), New Zealand (15%), and any custom rate. Includes CGST/SGST/IGST split, formula, worked examples, and reference tables — free, no sign-up.
GST (Goods and Services Tax) is an indirect tax levied on the supply of goods and services. Prices can be quoted either inclusive of GST (the tax is already embedded in the price) or exclusive of GST (the tax is added on top). This converter handles both conversions instantly with exact formulas.
A GST-inclusive price (also called a tax-inclusive or gross price) already contains the GST component within it. For example, a retail sticker price of ₹1,180 at 18% GST means the product base price is ₹1,000 and ₹180 is the embedded GST. Customers pay the inclusive price at the point of sale — the GST portion is not separately visible at checkout. Retail and consumer-facing transactions typically use inclusive pricing.
A GST-exclusive price (also called tax-exclusive or net price) is the base price before GST is added. For example, a supplier quotes ₹1,000 exclusive of GST at 18% — the buyer pays ₹1,180 total. GST-exclusive pricing is standard in B2B transactions, wholesale invoices, and accounting systems where the tax component must be clearly separated for input tax credit (ITC) claims and GST return filing.
India uses multiple GST slabs: 0%, 5%, 12%, 18%, and 28% (introduced July 1, 2017). Australia has a flat 10% GST (introduced July 2000). New Zealand uses 15% GST. Singapore applies 9% GST (from 2024). Canada has a federal 5% GST plus provincial taxes. This converter supports all standard rates plus any custom rate you enter.
Choose direction, select GST rate, enter amount, and convert instantly
The two GST conversion formulas are mathematical inverses of each other. The key insight is that when GST is already included in a price, the price represents (100% + GST%) of the base — so you divide by the GST multiplier to extract the base. When adding GST, you multiply the base by the same multiplier.
The table below shows common GST-inclusive prices and their corresponding exclusive (base) prices, GST amount, and CGST/SGST split for India's most common 18% GST rate. All values use the exact formula: Base = Inclusive ÷ 1.18.
| Inclusive Price (with GST) | Base Price (Ex-GST) | GST Amount (18%) | CGST (9%) | SGST (9%) |
|---|---|---|---|---|
| ₹59 | ₹50.00 | ₹9.00 | ₹4.50 | ₹4.50 |
| ₹118 | ₹100.00 | ₹18.00 | ₹9.00 | ₹9.00 |
| ₹295 | ₹250.00 | ₹45.00 | ₹22.50 | ₹22.50 |
| ₹590 | ₹500.00 | ₹90.00 | ₹45.00 | ₹45.00 |
| ₹1,180 | ₹1,000.00 | ₹180.00 | ₹90.00 | ₹90.00 |
| ₹2,360 | ₹2,000.00 | ₹360.00 | ₹180.00 | ₹180.00 |
| ₹5,900 | ₹5,000.00 | ₹900.00 | ₹450.00 | ₹450.00 |
| ₹11,800 | ₹10,000.00 | ₹1,800.00 | ₹900.00 | ₹900.00 |
| ₹23,600 | ₹20,000.00 | ₹3,600.00 | ₹1,800.00 | ₹1,800.00 |
| ₹59,000 | ₹50,000.00 | ₹9,000.00 | ₹4,500.00 | ₹4,500.00 |
| ₹1,18,000 | ₹1,00,000.00 | ₹18,000.00 | ₹9,000.00 | ₹9,000.00 |
The table below shows how different GST rates affect a ₹10,000 base (exclusive) price — useful for comparing the GST burden across India's tax slabs and international rates.
| GST Rate | GST Amount | Total (Inclusive) | CGST | SGST | Country / Use |
|---|---|---|---|---|---|
| 0% | ₹0 | ₹10,000 | — | — | India — Essentials (milk, salt, cereals) |
| 5% | ₹500 | ₹10,500 | ₹250 | ₹250 | India — Packaged food, transport |
| 9% | ₹900 | ₹10,900 | — | — | Singapore GST |
| 10% | ₹1,000 | ₹11,000 | — | — | Australia GST |
| 12% | ₹1,200 | ₹11,200 | ₹600 | ₹600 | India — Processed food, clothing |
| 15% | ₹1,500 | ₹11,500 | — | — | New Zealand GST |
| 18% | ₹1,800 | ₹11,800 | ₹900 | ₹900 | India — Services, electronics, restaurants |
| 28% | ₹2,800 | ₹12,800 | ₹1,400 | ₹1,400 | India — Luxury goods, automobiles, tobacco |
Converting between GST-inclusive and exclusive prices is a daily requirement for businesses, accountants, freelancers, and consumers across India, Australia, New Zealand, Singapore, and any GST-registered country.
Registered businesses must issue tax invoices showing the base price, GST rate, GST amount, and total (inclusive) price separately. If a customer agrees to pay ₹11,800 all-in for a service, the invoice must show base = ₹10,000, CGST = ₹900, SGST = ₹900, and total = ₹11,800. This converter provides all four figures instantly from a single inclusive or exclusive input.
Businesses registered under GST can claim Input Tax Credit on GST paid on purchases. To calculate the ITC available, the GST component must be extracted from invoice totals. For a purchase of ₹59,000 (inclusive at 18%), the ITC claimable = ₹9,000 (= 59,000 × 18/118). This converter makes ITC extraction fast and error-free for bookkeeping and GST return filing.
Retailers set prices inclusive of GST for consumer-facing display. When calculating profit margins and cost of goods, the GST must be removed first. A product sold at ₹1,416 (28% GST) has a base price of ₹1,106.25. If the cost was ₹900, the gross profit margin is not 57.3% (on inclusive) but 22.9% (on exclusive base) — a critical difference for accurate margin analysis.
In accounting software and GST returns (GSTR-1, GSTR-3B in India), all sales are recorded at exclusive (net) values with GST shown separately. When receipts show only the total inclusive price — such as fuel receipts, restaurant bills, or utility invoices — the accountant must back-calculate the base price and GST for correct journal entries, expense categorisation, and tax filing.
In India, B2B buyers expect GST-exclusive quotes so they can assess the net cost and calculate their ITC. B2C customers see GST-inclusive retail prices. A supplier quoting ₹10,000 + 18% GST to a business buyer must show the total as ₹11,800 on the tax invoice. Switching between these representations for the same price is exactly what this converter does in one click.
When importing goods into Australia, New Zealand, or Singapore, customs duties and GST are assessed on the CIF (cost + insurance + freight) value exclusive of GST. Importers must convert all inclusive prices from foreign invoices to exclusive bases before applying the local GST rate. Converting GST-inclusive prices to exclusive is also required for cross-border service billing under GST reverse charge mechanisms.
India uses 5 GST slabs: 0%, 5%, 12%, 18%, and 28%. Most services attract 18%. Basic food items, healthcare, and education are typically exempt or zero-rated. Luxury goods, automobiles, and tobacco attract 28% plus additional cess. Always verify the HSN/SAC code for your goods or services on the GST portal.
More Converters →GST rates vary significantly: Australia 10%, New Zealand 15%, Singapore 9%, Canada 5% federal, UK VAT 20%, EU VAT typically 20–25%. This converter supports all these via the "Custom Rate" option. Always use the country-specific rate that applies to your transaction for accurate invoice and tax calculations.
More Tools →Registered businesses must file GSTR-1 (outward supplies) and GSTR-3B (summary return) monthly or quarterly. All invoices must clearly state whether prices are GST-inclusive or exclusive, the applicable rate, HSN/SAC code, and the GST registration number (GSTIN) of both parties.
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