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Reverse Sales Tax Calculator
Official 2026 Tax Guide

India Reverse GST Calculator: Find Original Price

Need to remove GST from a total in India? Use our free 18% reverse GST calculator to instantly extract tax and find the exact original price before tax.

SOURCE: LIVE RATES DATABASE & OFFICIAL AUTHORITIES
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The standard GST rate for India is pre-filled. You can adjust this manually if needed.

Standard Rate

18.00%

Alternative Rate

5% / 12% / 18% / 28%

Combined Rate

18.00%

Ritu Sharma Umesh Kant Sharma

Expert Verified

CPA Reviewed Resource

Update: Apr 2026

Data Research Lead

Ritu Sharma

Tax Research Analyst specializing in global tax compliance and rate tracking.

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Editorial Reviewer

Umesh Kant Sharma

Senior Revenue Technologist with over 15 years of financial systems expertise.

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Verified against official 2026 revenue schedules for India.

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Understanding India's Tax System

India's Goods and Services Tax (GST), introduced on July 1, 2017, replaced a complex web of central and state taxes including Central Excise, Service Tax, VAT, and over a dozen other indirect levies. The GST is one of the largest tax reforms in Indian history — a constitutional amendment was required to enable a unified national consumption tax across India's federal structure.

India's GST uniquely features five tax slabs: 0%, 5%, 12%, 18%, and 28%. The 18% rate is considered the "standard" rate for most services and manufactured goods. The 28% rate — the highest — applies to luxury goods, sin goods (tobacco, alcohol in certain contexts), and automobiles, often with additional Compensation Cess on top. The multi-slab system reflects India's diverse economic structure, where basic necessities (food, healthcare) must be kept affordable for a large low-income population, while luxury consumption can be taxed more heavily.

Why Reverse Tax Calculation Matters in India

India's GST is a dual system — CGST (Central GST) and SGST (State GST) are levied simultaneously on intra-state transactions, each at half the total rate. For interstate transactions, IGST (Integrated GST) is levied instead. This means a product with 18% GST on an intra-state sale actually has 9% CGST + 9% SGST, while the same product sold across state lines has 18% IGST. Understanding this structure is essential for Indian business accounting and invoice generation.

India's GST compliance system (GSTN — GST Network) is entirely digital, with mandatory e-invoicing for businesses above specified turnover thresholds, automatic reconciliation between buyer and seller data, and near-real-time government visibility into transactions. India's GST digital infrastructure is one of the most sophisticated in the world, handling billions of transactions monthly.

India Tax Rate Categories

GST Rate
28% (Luxury/Sin)
Category
Luxury goods and sin taxes
Examples
Cars (mid/large), motorcycles (>350cc), cigarettes, tobacco, aerated drinks, luxury hotels, casinos — often + Cess
GST Rate
18% (Standard)
Category
Most goods and services
Examples
Electronics, most manufactured goods, professional services, financial services, restaurants (AC), telecom
GST Rate
12% (Reduced)
Category
Selected goods
Examples
Processed food, edible oils, butter, cheese, apparel above ₹1,000, medicines, business class air travel
GST Rate
5% (Lower Reduced)
Category
Essentials and basics
Examples
Packaged food, apparel up to ₹1,000, footwear up to ₹1,000, economy air travel, small restaurants, healthcare services
GST Rate
0% (Nil Rated)
Category
Necessities
Examples
Fresh food, milk, eggs, vegetables, fruits, salt, cereals, bread, educational services, healthcare, hotels below ₹1,000/night

Real-World Reverse Tax Calculation Example

You hired a professional consulting firm in Mumbai, India. The invoice was ₹1,18,000 total (including 18% GST on professional services).

  • Convert GST rate: 18% ÷ 100 = 0.18
  • Add 1: 1 + 0.18 = 1.18
  • Divide: ₹1,18,000 ÷ 1.18 = ₹1,00,000 (pre-GST value)
  • GST: ₹1,18,000 − ₹1,00,000 = ₹18,000 (CGST: ₹9,000 + SGST: ₹9,000)
  • ✓ Pre-GST value: ₹1,00,000 | CGST (9%): ₹9,000 | SGST (9%): ₹9,000 | Total GST: ₹18,000

India Tax Compliance & Registration

Indian businesses must register for GST when annual aggregate turnover exceeds ₹40 lakhs (₹20 lakhs for service providers and special category states). Registration is done through the GSTN portal at gst.gov.in. GST returns (GSTR-1 for outward supplies, GSTR-3B for summary return) are filed monthly or quarterly. E-invoicing is mandatory for businesses above ₹5 crore turnover (approximately USD $600,000), requiring invoices to be reported to the IRP (Invoice Registration Portal) before issuance. The GST Council (comprising central and state finance ministers) periodically revises rate slabs and exemptions.

Official Citations & Sources

  • Information formatted according to the official GST Council and CBIC guidelines.
  • GST slab rates verified through the latest 2026 Indian tax notifications.
  • Official Link: GST Services — India

Frequently Asked Questions — India

India's GST is split between central and state governments. For intra-state sales (within the same state), CGST (Central GST) and SGST (State GST) are charged simultaneously, each at half the total rate. For interstate sales, IGST (Integrated GST) is charged at the full rate. So an 18% GST sale within Maharashtra shows ₹9 CGST + ₹9 SGST per ₹100. The same sale from Maharashtra to Delhi shows ₹18 IGST.
The 28% rate applies to luxury and sin goods including: large cars and SUVs, motorcycles above 350cc, aerated (carbonated) drinks, tobacco and cigarettes, luxury hotels (above ₹7,500/night), casinos, and betting. Many of these also attract additional Compensation Cess on top of the 28% GST, further increasing the effective tax rate on these goods.
India's e-invoicing requires businesses above ₹5 crore turnover to report invoice details to the Invoice Registration Portal (IRP) before (or at the time of) issuance. The IRP validates the invoice and returns a unique Invoice Reference Number (IRN) and a QR code. The invoice is only legally valid when it carries this IRN and QR code. This system allows the government to validate and auto-populate GST returns from invoice data.
Yes. Restaurants without AC (air conditioning) are taxed at 5% GST with no input tax credit. AC restaurants are taxed at 5% as well (reduced from 18% in 2018). Restaurants in hotels with room tariffs above ₹7,500 are taxed at 18%. Takeaway food from restaurants follows the same rate as the restaurant. This rate structure was simplified to encourage compliance in the restaurant sector.
The Composition Scheme allows small businesses (turnover up to ₹1.5 crore for goods, ₹50 lakhs for services) to pay a simplified flat GST rate (1-6% of turnover) instead of the regular multi-rate system, in exchange for not being able to claim input tax credits or issue GST invoices to their customers. This significantly reduces compliance burden for small traders and manufacturers.

Understanding Different Tax Jurisdictions

Looking for a different jurisdiction? Compare calculators for other global regions:

Poland

23.00%

Mexico

16.00%

Nova Scotia

15.00%

Saskatchewan

11.00%

Yukon

5.00%

Brazil

17.00%
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United States Tax Structure

Explore individual calculators and detailed tax rates for all 50 US states.

Explore All 50 States

Other World Tax Rates

United Arab Emirates (UAE) 5% VAT South Korea 10% VAT Australia 10% GST New Zealand 15% GST Japan 10% Consumption Tax India 18% GST Singapore 9% GST Mexico 16% IVA Brazil 17% ICMS

Legal Disclaimer: While we strive to maintain accurate and up-to-date tax rate information from reliable sources, tax rates can change frequently. Always verify current rates with your local tax authority or a qualified tax professional for official tax matters. This calculator is for informational purposes only and does not constitute professional tax, legal, or financial advice.

Last Updated: April 2026 Rates Subject to Change