GST Calculator — Calculate GST Amount Online Instantly
Enter the base price before GST
₹
Examples at 18% slab:
Most servicesConsumer electronicsRestaurants (AC)Cement
Share:
Original Amount
₹10,000
Total Amount
₹11,800
GST Breakdown
CGST @ 9%(Intra-state)
₹900SGST @ 9%(Intra-state)
₹900IGST @ 18%(Inter-state)
₹1,800Total GST
₹1,800Key Insights
What is a GST Calculator?
A GST Calculator is a free online tool that instantly computes the Goods and Services Tax amount for any transaction in India. It works in two modes: Add GST (enter base price, get the final price including GST) and Remove GST (enter GST-inclusive price, get original price and GST paid separately). You also get the full CGST + SGST breakdown for intra-state transactions.
Whether you're a business owner creating invoices, a consumer checking what tax you paid, or an accountant reconciling GST returns — this calculator handles all 5 GST slabs instantly: 5%, 12%, 18%, 28%, and more.
How to Use the GST Calculator
- Select Mode: Choose "Add GST" (exclusive price) or "Remove GST" (inclusive price).
- Enter Amount: Type the price in rupees.
- Select GST Rate: Choose the applicable slab — 5%, 12%, 18%, 28%, or custom rate.
- Read Results: See GST amount, CGST, SGST, and final/original price instantly.
GST Rates by Product/Service Category
| GST Rate | Category Examples |
|---|---|
| 0% | Fresh vegetables, milk, eggs, books, newspapers, healthcare, educational services |
| 3% | Gold, silver, precious metals, gems and jewelry |
| 5% | Packaged food, coal, economy air tickets, fertilizers, hand tools |
| 12% | Mobile phones, computers, processed food, business class air, medicines |
| 18% | Most services, AC restaurants, electronics, cement, capital goods, insurance |
| 28% | Luxury cars, tobacco, aerated drinks, AC, large TVs (>32"), casinos |
CGST + SGST Split for Each GST Rate
- 5% GST: CGST 2.5% + SGST 2.5% (intra-state) or IGST 5% (inter-state)
- 12% GST: CGST 6% + SGST 6% (intra-state) or IGST 12% (inter-state)
- 18% GST: CGST 9% + SGST 9% (intra-state) or IGST 18% (inter-state)
- 28% GST: CGST 14% + SGST 14% (intra-state) or IGST 28% (inter-state)
GST Formula
Adding GST: GST Amount = Price × Rate ÷ 100 | Total = Price + GST Amount
Removing GST: Original Price = Total ÷ (1 + Rate ÷ 100) | GST = Total − Original Price
Example: ₹50,000 laptop at 18% GST → GST = ₹9,000, Total = ₹59,000. To reverse: ₹59,000 ÷ 1.18 = ₹50,000 original, GST = ₹9,000.
Disclaimer: GST rates may change per government notifications. Always verify with the official GST portal (gst.gov.in) before filing returns. This GST calculator is for informational purposes only.
Frequently Asked Questions
What is a GST calculator?
A GST calculator is a free online tool that instantly computes the Goods and Services Tax amount for any transaction. It works in two modes: (1) Add GST — enter base price and GST rate to get the GST amount and final price, (2) Remove GST — enter a GST-inclusive price to extract the original price and exact GST paid. It also shows the CGST, SGST, and IGST breakdown.
What are the GST slabs in India 2025?
India has 5 primary GST rate slabs: 0% — essential items (fresh food, milk, books, healthcare), 5% — packaged food, coal, economy air tickets, 12% — processed food, computers, mobile phones, 18% — most services, electronics, restaurants with AC, 28% — luxury goods, tobacco, aerated drinks. Plus special rates: 3% on gold/silver, 0.25% on cut/polished diamonds, 1.5% on precious stones.
How to calculate GST?
Adding GST (exclusive): GST Amount = Original Price × GST Rate ÷ 100. Total Price = Original Price + GST Amount. Example: ₹1,000 item at 18% GST → GST = ₹180, Total = ₹1,180. Removing GST from inclusive price: Original Price = Total ÷ (1 + GST Rate ÷ 100). GST Amount = Total − Original Price. Example: ₹1,180 inclusive price at 18% → Original = ₹1,180 ÷ 1.18 = ₹1,000, GST = ₹180.
What is the difference between CGST, SGST, and IGST?
CGST (Central GST): Collected by Central Government on intra-state sales. SGST (State GST): Collected by State Government on intra-state sales. Both CGST and SGST are each half the applicable GST rate — for 18% GST intra-state: CGST = 9%, SGST = 9%. IGST (Integrated GST): Collected by Central Government on inter-state sales and imports — the full 18% goes as IGST instead of being split. IGST is shared between centre and state.
What is GST on gold and jewelry in India?
GST on gold and jewelry: Gold (raw) — 3% GST. Silver — 3% GST. Making charges on jewelry — 5% GST (on making charges, not total price). Diamonds (cut and polished) — 0.25% GST. Imitation jewelry — 3% GST. Example: ₹1L gold + ₹5K making charges. GST = ₹1L × 3% + ₹5K × 5% = ₹3,000 + ₹250 = ₹3,250 total GST. Total price = ₹1,08,250.
What is GST on real estate?
GST on real estate: Under-construction properties — 5% GST (effective from 2019) without ITC for residential, 12% for affordable housing (below ₹45L stamp value). Ready-to-move/completed properties — 0% GST (no GST on sale of completed property). Land purchase — no GST. Rental income: residential rent exempt from GST. Commercial rent — 18% GST if landlord is GST registered. Note: Stamp duty is separate and not part of GST.
What is GST on restaurant food?
GST on restaurants: Non-AC restaurants, takeaways, and delivery — 5% GST (no Input Tax Credit). AC restaurants and restaurants in 5-star hotels — 5% GST (effective from 2019, down from 18%). Alcohol served in restaurants — 18% GST on the food portion (alcohol itself not under GST, taxed by state). Outdoor catering (weddings, events) — 18% GST. Swiggy/Zomato delivery — 5% GST collected at platform level.
What is GST on mobile phones and electronics?
GST on electronics: Mobile phones (smartphones) — 18% GST. Laptops, computers, tablets — 18% GST. Earphones/headphones — 18% GST. Televisions (32 inches and below) — 18% GST. Televisions (above 32 inches) — 28% GST. Refrigerators — 18% GST. Washing machines — 18% GST. Air conditioners — 28% GST. Solar panels — 12% GST. LED bulbs and tubes — 12% GST.
Who needs to register for GST in India?
GST registration is mandatory for: Businesses with annual turnover above ₹40L (goods) or ₹20L (services) in regular states. ₹10L threshold for NE states. Inter-state suppliers regardless of turnover. E-commerce operators. Casual and non-resident taxable persons. Input service distributors. Voluntary registration is allowed even below threshold. GST number is a 15-digit GSTIN. Registration penalty: up to 10% of tax due or ₹10,000 minimum for not registering when required.
What is Input Tax Credit (ITC) in GST?
Input Tax Credit (ITC) allows GST-registered businesses to deduct the GST paid on inputs (purchases) from the GST collected on outputs (sales). Example: Manufacturer buys raw material paying ₹18,000 GST and sells finished goods collecting ₹45,000 GST. Net GST payable = ₹45,000 − ₹18,000 = ₹27,000. This eliminates the 'tax on tax' (cascading effect) from the old VAT/excise regime. Conditions: supplier must have filed their GST return and tax must appear in your GSTR-2A.
What is reverse charge mechanism (RCM) in GST?
Reverse Charge Mechanism (RCM): Instead of supplier collecting and paying GST, the receiver (buyer) pays GST directly to the government. Applies when: Buying from unregistered dealers (for notified categories), specific services (legal, GTA transport, import of services), government services. Example: If you pay a lawyer (not GST registered) ₹1L, you must pay 18% GST = ₹18,000 directly to the government under RCM. You can claim ITC for this RCM payment.
What is the GST return filing deadline?
GST return filing deadlines: GSTR-1 (outward supplies) — 11th of next month (monthly) or quarterly for QRMP filers. GSTR-3B (summary return with tax payment) — 20th of next month for large taxpayers, 22nd/24th for small. Annual return GSTR-9 — December 31 of next financial year. Composition scheme (GSTR-4) — 30th April annually. Late fee: ₹50/day (₹20/day for nil returns) capped at ₹10,000 per return. Always file on time to avoid interest at 18% per annum on late tax.
What is the GST composition scheme?
GST Composition Scheme is for small businesses with turnover ≤ ₹1.5 crore (₹75L for services). Rates: Manufacturers/traders — 1% GST (0.5% CGST + 0.5% SGST), Restaurants — 5%, Service providers — 6%. Benefits: simplified compliance (quarterly filing instead of monthly), fixed low rate, no ITC filing burden. Restrictions: Cannot collect GST from customers, cannot claim ITC, cannot sell inter-state, cannot supply through e-commerce.
What is the GST rate on insurance and financial services?
GST on financial services: Term life insurance premium — 18% GST. ULIPs — 18% GST on charges. Health insurance — 18% GST (a key concern — pre-Budget 2025 many requested reduction). Mutual fund management charges — 18% GST. Brokerage on equity/commodity — 18% GST. Bank charges (account maintenance, NEFT, RTGS) — 18% GST. Home loan processing fee — 18% GST. Note: The government is considering reducing GST on health insurance from 18% to lower slabs.
How is GST different from VAT?
GST replaced VAT (and other indirect taxes) in India from July 1, 2017. Key differences: GST is a single unified tax vs multiple taxes (VAT, service tax, excise, CST) under old regime. GST allows Input Tax Credit across the supply chain vs VAT's limited ITC. GST is destination-based vs origin-based VAT. One national registration vs state-by-state under VAT. Electronic filing under GST vs paper-based VAT compliance. GST has eliminated the cascading tax effect that added 25–30% to product costs.