GST Calculator India – Add or Remove GST Instantly
Calculate GST for any amount across all Indian slabs — 0%, 5%, 12%, 18%, and 28%. Forward and reverse GST calculation with CGST, SGST, and IGST breakdown. Free, accurate, and instant.
Instant Calculation
All 5 GST Slabs
Forward & Reverse
Add or Remove GST
CGST + SGST + IGST
Intra & Inter State
Accurate 2026 Rates
CBIC Compliant
Quick Answer: How do I calculate GST?
To add GST: Gross Amount = Net Price × (1 + GST Rate/100).
To remove GST: Net Price = Gross Amount ÷ (1 + GST Rate/100).
For example, adding 18% GST to ₹10,000 gives ₹11,800. Removing 18% GST from ₹11,800 gives net price of ₹10,000 and GST of ₹1,800 (CGST ₹900 + SGST ₹900 for intra-state). For inter-state, the entire ₹1,800 is IGST.
What are the current GST slabs in India (2026)?
India follows 5 GST slabs: 0% (Nil-rated — fresh vegetables, milk, books, eggs), 5% (packaged food, coffee, rail tickets, spices), 12% (computers, medicines, processed food, mobile phones), 18% (most services, telecom, banking, industrial goods), and 28% (luxury items — cars, ACs, aerated drinks, tobacco). A special 3% rate applies to gold. The GST Council periodically revises these rates.
Calculate GST — Add or Remove Tax
Enter an amount, choose a GST slab, and select intra or inter-state. Get instant CGST, SGST, and IGST breakdown.
Enter the net price. GST will be added on top.
Common Items at This Rate
Results appear here
Enter an amount and select a GST slab to see the complete tax breakdown.
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GST Impact Across All Slabs
See how different GST rates affect the final price for a ₹1,00,000 base amount. The higher the slab, the bigger the tax bite.
Gross Amount by GST Slab (Base: ₹1,00,000)
Common Purchase Scenarios
| Item | Base | Rate | GST | Total |
|---|---|---|---|---|
| Restaurant Bill (AC) | ₹2,000 | 18% | ₹360 | ₹2,360 |
| New Smartphone | ₹25,000 | 12% | ₹3,000 | ₹28,000 |
| Hotel Room (₹5000/night) | ₹5,000 | 18% | ₹900 | ₹5,900 |
| AC Purchase (1.5 Ton) | ₹40,000 | 28% | ₹11,200 | ₹51,200 |
| Movie Tickets (2 x ₹180) | ₹360 | 18% | ₹65 | ₹425 |
| Laptop (₹60,000) | ₹60,000 | 12% | ₹7,200 | ₹67,200 |
| Car Purchase (₹8 Lakh) | ₹800,000 | 28% | ₹224,000 | ₹1,024,000 |
| Medicine Purchase | ₹1,500 | 12% | ₹180 | ₹1,680 |
| Packaged Food | ₹500 | 5% | ₹25 | ₹525 |
| Cement (50 bags) | ₹20,000 | 28% | ₹5,600 | ₹25,600 |
₹100,000
GST: ₹0
₹105,000
GST: ₹5,000
₹112,000
GST: ₹12,000
₹118,000
GST: ₹18,000
₹128,000
GST: ₹28,000
How GST Is Calculated — The Formula
Master the GST math with these simple formulas. No more confusion about CGST, SGST, or IGST.
Gross Amount = Net Price × (1 + GST Rate ÷ 100)
₹10,000 + 18% GST = ₹10,000 × 1.18 = ₹11,800
Net Price = Gross Amount ÷ (1 + GST Rate ÷ 100)
₹11,800 ÷ 1.18 = ₹10,000 (GST = ₹1,800)
CGST = GST Amount ÷ 2
₹1,800 ÷ 2 = ₹900 (Intra-state)
SGST = GST Amount ÷ 2
₹1,800 ÷ 2 = ₹900 (Intra-state)
IGST = GST Amount
₹1,800 = Full GST (Inter-state)
All 5 GST Slabs — What Falls Where
The definitive guide to which items and services attract which GST rate in India. Updated for 2026.
Nil-Rated (0% GST)
Essential items that the government has exempted from GST. These are basic necessities that should be affordable for all.
Covered items: Fresh vegetables, fresh milk, eggs, curd, lassi, buttermilk, books, newspapers, journals, jute, unbranded atta/maida/besan, sanitary napkins, kajal, bindi, sindoor, contraceptives, education services, healthcare services, children's drawing and colouring books.
Lower Rate (5% GST)
Commonly consumed items at a concessional rate. Most packaged daily-use items fall in this bracket.
Covered items: Packaged food items, tea, coffee, sugar, spices, edible oils, cashew nuts, raisins, frozen vegetables, pizza bread, rusk, skimmed milk powder, condensed milk, LPG for domestic use, kerosene, coal, medicines (specified), railway tickets (AC and first class), economy class air tickets, fertilizers, footwear below ₹500, apparel below ₹1,000.
Standard Rate I (12% GST)
Processed goods, electronics, and some services. This is a moderate tax bracket for slightly premium items.
Covered items: Computers, laptops, mobile phones, printers, processed food, fruit juices, flavoured refined sugar, namkeen, bhujia, butter, cheese, ghee, dry fruits in packaged containers, packaged coconut water, diagnostic kits, allopathic medicines, spectacles, corrective lenses, exercise books, note books, umbrellas, sewing machines, handmade matches, work contracts.
Standard Rate II (18% GST)
Most services and manufactured goods. This is the most common GST slab that applies to the majority of transactions.
Covered items: Restaurant services (AC and non-AC with liquor license), telecom services, internet services, IT/software services, banking and financial services, insurance, cinema tickets (₹100+), hotel rooms (₹1,001–₹7,500), outdoor catering, ACs (some categories), refrigerators, washing machines, vacuum cleaners, TV up to 32 inches, CCTV cameras, weighing machines, biscuits, branded garments.
Highest Rate (28% GST)
Luxury items and demerit goods. These are non-essential or premium products with an additional cess in some cases.
Covered items: Air conditioners (domestic), cars and automobiles, aerated drinks, paan masala, tobacco products, cigarettes, cement, paint, shampoo, sunscreen, deodorants, washing powder, weighing machines, vending machines, dishwashers, water heaters, hair dryers, shavers, vacuum cleaners, digital cameras, video game consoles, TV above 32 inches, marble and granite.
GST Concepts Every Indian Should Know
Essential GST knowledge for consumers, business owners, and freelancers in India.
Intra-State: CGST + SGST
When you buy from a seller in your own state, GST is equally split: half goes to the Central Government as CGST, and half to your State Government as SGST. For 18% GST, that's 9% CGST and 9% SGST.
Inter-State: IGST
When buying across state lines, the entire GST is collected as Integrated GST (IGST). The Centre collects it and later distributes the state's share to the destination state. For 18% GST, it's a single 18% IGST charge.
Reverse Charge Mechanism
In certain cases, the buyer (not the seller) is liable to pay GST. This applies to purchases from unregistered dealers, services from advocates, or goods from specific notified categories like cashew nuts in shell and silk yarn.
Input Tax Credit (ITC)
Businesses can claim credit for GST paid on their purchases against GST collected on their sales. This prevents cascading of tax. Only GST-registered businesses can claim ITC. The net GST payable = Output GST minus Input GST.
Composition Scheme
Small businesses with turnover below ₹1.5 crore (₹75 lakh for special category states) can opt for a simplified GST scheme. They pay a flat rate (1-6%) on turnover without claiming ITC and file quarterly returns instead of monthly.
E-Way Bill Requirements
For goods movement valued above ₹50,000 across state lines, an electronic waybill (e-way bill) is mandatory. Generated on the GST portal, it includes the invoice, vehicle number, and transporter details. Valid for 1 day per 100 km of travel.
Still Confused About GST?
Use our calculator above to instantly compute GST for any amount. Bookmark this page for quick reference whenever you shop, invoice, or file returns.
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GST FAQs — 20 Common Questions Answered
Quick, detailed answers to the most searched GST questions in India. Optimized for Google Featured Snippets and AI Overviews.
To add GST: Gross Amount = Net Price × (1 + GST Rate ÷ 100). For example, ₹10,000 with 18% GST = ₹10,000 × 1.18 = ₹11,800. To remove GST: Net Price = Gross Amount ÷ (1 + GST Rate ÷ 100). For example, ₹11,800 ÷ 1.18 = ₹10,000, and GST = ₹1,800. Our calculator above does both calculations instantly for any amount and any slab.
GST rates and rules are subject to change based on GST Council decisions. This calculator uses the latest publicly available rates as of June 2026. For official tax compliance, always refer to gst.gov.in or consult a tax professional.