The EzyToolz GST Calculator helps you calculate Goods and Services Tax on any amount in seconds — whether you are adding GST to a base price or removing GST from a tax-inclusive total. Enter the amount, select the applicable GST rate, choose exclusive or inclusive mode, and the tool instantly displays the GST amount, base price, total payable, and a full CGST/SGST/IGST breakup.

The calculator is updated for the GST 2.0 reforms effective from September 22, 2025, which replaced the old four-slab structure with a simplified three-tier rate system.

Who Should Use This Calculator?

Business owners and retailers preparing GST-compliant invoices — verify the correct tax amount and CGST/SGST split before billing customers.

Freelancers and service providers calculating GST on professional fees, consulting charges, or digital services — most services attract 18% GST, and this tool confirms the exact amount to charge clients.

E-commerce sellers checking tax-inclusive product pricing — use inclusive mode to extract the base price and GST component from any listed price.

Consumers verifying whether the correct GST rate was charged on a purchase — useful for checking restaurant bills, hotel invoices, or retail receipts.

Accountants and tax consultants doing quick cross-checks during GST return filing (GSTR-1, GSTR-3B) without needing a spreadsheet.

Key Features

Exclusive and inclusive modes — add GST to a base price, or remove GST from a total price, with one click
GST 2.0 rates — updated with September 2025 slabs: 5%, 18%, 40%, and 0% (exempt)
CGST/SGST/IGST breakup — Breakdown mode shows the exact split for intra-state and inter-state transactions
Custom rate — enter any GST rate for special categories or export calculations
Real-time results — output updates instantly as you type, no submit button needed
Copy and reset — copy results to clipboard or clear and start a new calculation

How to Use the GST Calculator

Step 1 — Select calculator type: Choose Basic for a quick total, or Breakdown for CGST/SGST/IGST split.

Step 2 — Select calculation mode: GST Exclusive if you have the base price and want to add tax. GST Inclusive if you have the final price and want to extract the tax component.

Step 3 — Select GST rate: Choose 5%, 18%, 40%, 0% (exempt), or enter a custom rate.

Step 4 — Enter amount: Type the base price or total price depending on the mode selected.

Step 5 — View results: GST amount, base price, and total payable appear instantly. In Breakdown mode, CGST and SGST (or IGST for inter-state) are shown separately.

GST 2.0 — Updated Rates from September 22, 2025

The GST Council’s restructuring effective September 2025 simplified the previous 5%–12%–18%–28% structure into three main slabs:

Slab	Rate	Applies To
Merit rate	5%	Essential goods — unbranded food, medicines, basic agricultural inputs
Standard rate	18%	Most goods and services — electronics, clothing, restaurant meals, professional fees
Luxury/sin goods	40%	Tobacco, aerated drinks, luxury cars, premium consumer goods
Exempt	0%	Life and health insurance, UHT milk, Indian breads (roti, paratha), labelled paneer

Key rate changes under GST 2.0: Cement moved from 28% → 18%. Small petrol cars (up to 1200cc) and motorcycles (up to 350cc) moved from 28% → 18%. Hair oil, soaps, shampoos, toothpaste moved to 5% or 18%. Hotels with room tariff up to ₹7,500 — 18%. Life insurance and health insurance premiums — fully exempt.

CGST, SGST, and IGST — When Each Applies

For intra-state transactions (buyer and seller in the same state), the GST is split equally as CGST and SGST. On an 18% GST transaction within Maharashtra, 9% goes to the central government as CGST and 9% to the Maharashtra state government as SGST.

For inter-state transactions (buyer and seller in different states, or imports), the full GST is collected as IGST by the central government, which then shares the state’s portion with the destination state.

Use the Breakdown mode in this calculator to see the exact CGST/SGST or IGST split — useful for invoice preparation and input tax credit (ITC) reconciliation.

Frequently Asked Questions (FAQ)

To add GST (exclusive mode): multiply the base price by the GST rate and divide by 100 to get the GST amount, then add it to the base price. Example — ₹10,000 at 18% GST gives ₹1,800 GST and a total of ₹11,800. To remove GST from a total price (inclusive mode): divide the total by (1 + GST rate ÷ 100). For ₹11,800 inclusive of 18% — base price = ₹11,800 ÷ 1.18 = ₹10,000.

Freelancing and professional services attract 18% GST under GST 2.0. This applies to IT services, consulting, content writing, design, legal services, accounting, and other professional work. Freelancers with annual turnover above ₹20 lakh (₹10 lakh for special category states) are required to register for GST and charge 18% on invoices. Below this threshold, GST registration is optional.

GST on rent depends on the type of property and tenant. Commercial property rented to a GST-registered business attracts 18% GST under the reverse charge mechanism — the tenant pays GST directly to the government, not through the landlord. Residential property rented for residential use is exempt from GST. Renting a residential property for commercial use attracts 18% GST.

GST exclusive means the price shown does not include tax — GST is added on top. A product priced at ₹5,000 exclusive of 18% GST costs ₹5,900 after adding the tax. GST inclusive means the price already includes the tax — ₹5,900 inclusive of 18% GST means the base price is ₹5,000 and GST is ₹900. Most retail prices in India are GST inclusive; most B2B invoices quote prices exclusive of GST.

Life insurance and health insurance premiums are fully exempt from GST (0%) from September 22, 2025. Before this change, insurance premiums attracted 18% GST. Term life insurance, health insurance, and top-up health plans are all covered under this exemption.

Businesses with turnover above the GST threshold (₹40 lakh for goods, ₹20 lakh for services) that fail to register under GST face a penalty of 10% of the tax amount due or ₹10,000 — whichever is higher. For wilful tax evasion, the penalty is 100% of the tax amount due. Late GST return filing attracts a late fee of ₹50 per day (₹20 per day for nil returns), subject to a maximum of ₹5,000.

Input tax credit (ITC) allows GST-registered businesses to deduct the GST paid on purchases from the GST collected on sales — so only the net value added at each stage is taxed. For example, a trader who pays ₹1,800 GST on a ₹10,000 purchase and collects ₹3,600 GST on a ₹20,000 sale pays only ₹1,800 net GST to the government. ITC can be claimed only if the supplier has filed their GSTR-1 and the purchase reflects in the buyer’s GSTR-2B.

These calculations are based on GST Council notifications and published rate schedules. GST rates are subject to revision. For official compliance and filing, refer to the GST portal at gst.gov.in or consult a chartered accountant.