--- title: "GST Calculator Guide: Rates by Country & Formulas (2026) | ShoutingNow" description: Calculate GST for India, Australia, Canada, Singapore, NZ, and more. Compare 2026 rates, learn forward and reverse formulas, with country-by-country examples. url: "https://shoutingnow.com/blog/gst-calculator-guide/" image: "https://shoutingnow.com/wp-content/uploads/2026/07/GST-Calculator-Guide-1024x683.webp" --- # GST Calculator Guide: Rates by Country, Formulas & Free Tools **Start calculating:** [Open the Indian GST Calculator](https://shoutingnow.com/tools/indian-gst-calculator/), multi-slab rates (5%-28%), live bidirectional math, and a visual breakdown. Every country and rate tool on this page uses the same formulas. On this page 12 1. 1 What is GST? 2. 2 CGST, SGST, and IGST in India 3. 3 How to calculate GST Worked example (18% GST) [ 4 GST rates by country (2026 reference) ](#gst-rates-by-country-2026-reference) [ 5 When to use a percentage GST calculator ](#when-to-use-a-percentage-gst-calculator) [ 6 GST vs VAT vs sales tax ](#gst-vs-vat-vs-sales-tax) [ 7 Who uses a GST calculator? ](#who-uses-a-gst-calculator) [ 8 All GST calculators on ShoutingNow ](#all-gst-calculators-on-shoutingnow) 1. Country GST calculators 2. Fixed-rate GST calculators ($) [ 9 Frequently asked questions ](#sn-section-faqs) Show 4 more sections ## What is GST? **Goods and services tax (GST)** is a consumption tax applied to most goods and services. Registered businesses charge GST on sales, claim credits on purchases, and remit the net amount to the revenue authority. The same math applies whether your country calls it GST, VAT, or sales tax, you need the *tax-exclusive* price, the *rate*, and the *tax-inclusive* total. ## CGST, SGST, and IGST in India India splits GST differently from single-rate countries. Use our [Indian GST Calculator](https://shoutingnow.com/tools/indian-gst-calculator/) for intra-state **CGST + SGST/UTGST** or inter-state **IGST** on the same invoice. Other countries on this page use one combined tax line at the standard rate. ## How to calculate GST Given a price **excluding** GST and a rate *r*%: When the receipt shows a tax-inclusive total, divide by (1 + rate) to back out the pre-tax price: ### Worked example (18% GST) A ₹1,000 pre-tax invoice at 18% GST adds ₹180 tax for a ₹1,180 total. If you only know ₹1,180, divide by 1.18 to get ₹1,000. Use the [Indian GST Calculator](https://shoutingnow.com/tools/indian-gst-calculator/) to switch between 5%, 12%, 18%, and 28% slabs instantly. ## GST rates by country (2026 reference) Rates change with legislation, always confirm with your tax authority before filing. As of 2026, headline standard rates include: CountryTax nameStandard rateCalculator IndiaGST18% (multi-slab)[Indian GST Calculator](https://shoutingnow.com/tools/indian-gst-calculator/) AustraliaGST10%[Australia GST Calculator](https://shoutingnow.com/tools/australia-gst-calculator/) SingaporeGST9%[Singapore GST Calculator](https://shoutingnow.com/tools/singapore-gst-calculator/) New ZealandGST15%[NZ GST Calculator](https://shoutingnow.com/tools/nz-gst-calculator/) CanadaGST / HST5% federal[Canada GST Calculator](https://shoutingnow.com/tools/canada-gst-calculator/) EgyptVAT14%[Egyptian GST Calculator](https://shoutingnow.com/tools/egyptian-gst-calculator/) JerseyGST5%[Jersey GST Calculator](https://shoutingnow.com/tools/jersey-gst-calculator/) JordanGST16%[Jordanian GST Calculator](https://shoutingnow.com/tools/jordanian-gst-calculator/) MalaysiaSST10% / 8%[Malaysian GST Calculator](https://shoutingnow.com/tools/malaysian-gst-calculator/) MaldivesGST8% / 16% TGST[Maldivian GST Calculator](https://shoutingnow.com/tools/maldivian-gst-calculator/) Papua New GuineaGST10%[PNG GST Calculator](https://shoutingnow.com/tools/papua-new-guinea-gst-calculator/) *Rates are for orientation. Exemptions, zero-rating, and provincial taxes may apply.* ## When to use a percentage GST calculator Not sure which country tool fits? Use a fixed-rate calculator when you already know the percentage: - 5% GST Calculator, Jersey GST, India 5% slab, Egypt reduced rate - 10% GST Calculator, Australia, PNG, Malaysia sales tax - 15% GST Calculator, New Zealand and other 15% jurisdictions ## GST vs VAT vs sales tax **VAT** and **GST** are both multi-stage taxes with input credits, the name depends on the country. **U.S. sales tax** is usually simpler at checkout but varies by ZIP code. Our GST suite covers international GST/VAT math; use the sales tax tool for U.S. receipts. ## Who uses a GST calculator? Shoppers Compare tax-inclusive shelf prices and spot the true pre-tax cost. Freelancers & small businesses Quote invoices with the correct GST split before issuing PDFs. Students Practice forward and reverse GST formulas with step-by-step breakdowns. Expats & travellers Switch between country calculators (India, Singapore, Australia, etc.) without re-learning the math. ## All GST calculators on ShoutingNow Each tool splits **price including GST**, **GST amount**, and **price excluding GST** with live updates, no submit button required. Pick your jurisdiction or a fixed percentage: ### Country GST calculators - Indian GST Calculator, Multi-slab GST (0.25%-28%) with ₹ currency - Australia GST Calculator, 10% GST for Australia (A$) - Canadian GST Calculator, Provincial GST, HST, PST, RST & QST by province (C$) - Singaporean GST Calculator, 9% GST from 2024 (S$) - NZ GST Calculator, 15% New Zealand GST (NZ$) - Malaysian GST Calculator, SST, 10% sales tax, 8% service tax (RM) - Egyptian GST Calculator, 14% VAT standard, 5% reduced (E£) - Jordanian GST Calculator, 16% general sales tax (JD) - Jersey GST Calculator, 5% Jersey GST (£) - Maldivian GST Calculator, 8% GST and 16% tourism GST (Rf) - Papua New Guinean GST Calculator, 10% PNG GST (K) ### Fixed-rate GST calculators ($) - 5% GST Calculator, 5% GST, Jersey, India reduced slab, Egypt reduced - 6% GST Calculator, 6% GST, blended or legacy rates - 10% GST Calculator, 10% GST, Australia, PNG, Malaysia goods - 15% GST Calculator, 15% GST, New Zealand standard rate Shopping in the United States? Try our [Sales Tax Calculator](https://shoutingnow.com/tools/sales-tax-calculator/) for state and local rates. ## Frequently Asked Questions ### How do I calculate GST from a tax-inclusive price? Divide the total by **(1 + rate ÷ 100)**. At an 18% rate, that means dividing by 1.18 to get the pre-tax price, then subtracting to isolate the GST portion. Every ShoutingNow GST calculator runs this live, including the [Indian GST Calculator](https://shoutingnow.com/tools/indian-gst-calculator/). ### What is the GST rate in India in 2026? India spreads GST across several slabs: **0.25%, 1.5%, 3%, 5%, 12%, 18%, and 28%**, with most goods and services falling under 18%. Match your invoice to the rate dropdown on the [Indian GST Calculator](https://shoutingnow.com/tools/indian-gst-calculator/). ### What GST rate does Australia use? Australia charges a flat **10% GST** on most taxable supplies, though basic food, health, and education categories are GST-free. The [Australia GST Calculator](https://shoutingnow.com/tools/australia-gst-calculator/) splits the tax out for you. ### Is GST the same as VAT? For most consumers, functionally yes, they are both consumption taxes with the same forward and reverse math. **GST** is what Australia, India, and Singapore call it; **VAT** is the term you will see across Europe and Egypt. The [GST calculator guide](https://shoutingnow.com/blog/gst-calculator-guide/) shows the formulas side by side. ### When should I use the 5% GST calculator? Reach for the [5% GST Calculator](https://shoutingnow.com/tools/5-percent-gst-calculator/) whenever your rate lands exactly on 5%, which covers Jersey GST, India's 5% slab, and Egypt's reduced VAT on qualifying goods. ### Where can I find all country GST calculators? The [GST Calculator Guide](https://shoutingnow.com/blog/gst-calculator-guide/) links out to every country tool we have, India, Canada, Singapore, New Zealand, Malaysia, Egypt, Jordan, Jersey, the Maldives, and Papua New Guinea, plus fixed-rate calculators at 5%, 6%, 10%, and 15%. ### Are these GST calculators official for tax filing? No, treat them as **free estimation tools** for shopping, invoicing, and learning rather than official filing documents. Always confirm current rates, exemptions, and rounding rules with your national revenue authority before you lodge a return. ```json [{"@context":"https://schema.org","@type":"Organization","name":"ShoutingNow","url":"https://shoutingnow.com/","logo":{"@type":"ImageObject","url":"https://shoutingnow.com/wp-content/themes/shoutingnow-theme/assets/images/logo.png"},"sameAs":["https://x.com/makani20","https://www.linkedin.com/in/makani20/","https://post-see.com"],"contactPoint":{"@type":"ContactPoint","contactType":"customer support","email":"support@shoutingnow.com","url":"https://shoutingnow.com/contact/"},"slogan":"Learn. Build. Grow."},{"@context":"https://schema.org","@type":"WebPage","name":"GST Calculator Guide: Rates by Country, Formulas & Free Tools","description":"Calculate GST for India, Australia, Canada, Singapore, NZ, and more. 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