Tax & Business Calculator

GST Calculator

Add or remove GST in one click, see the exact CGST, SGST and IGST split, and build a full multi-item GST invoice, all in your browser.

✓ Inclusive & Exclusive ✓ CGST / SGST / IGST Split ✓ Profit Margin & Invoice ✓ GST Rate Finder ✓ 100% Private
₹
Enter an amount between 0 and 1,00,00,00,00,000.
Quantity must be between 1 and 1,000,000.
%
Margin must be between 0 and 10,000%.
%
Custom rate must be between 0 and 100.
Dotted = legacy slab
    %
    Cess must be between 0 and 300%.

    Total Amount (incl. GST)

    ₹0.00
    0% tax share
    Profit & GST Summary

    What you earn and what you actually pay to the government.

    Cost Price--
    Profit--
    Margin on Selling Price--
    Net GST Payable--

    Net / Taxable Value

    --

    Total GST

    --

    CGST

    --

    SGST / UTGST

    --
    Tax Breakdown

    Line-by-line, the way it would appear on a tax invoice.

    ComponentRateAmount
    Total--
    How It Was Calculated
      Compare Every GST Slab

      Same amount at every rate. Click a row to switch to that rate.

      GST RateNet AmountGSTTotal
      Recent Calculations

        Saved only in this browser. Click one to load it again.

        Item / Description HSN/SAC Qty Rate (₹) Disc % GST % Taxable GST Amount
        Some values were out of range and have been ignored. Check quantities, rates, discounts (0–100%) and GST (0–100%).
        Rate-wise Tax Summary

        Grouped by GST rate, as needed for GSTR-1.

        Invoice Total
        Grand Total ₹0.00

        Your items are auto-saved in this browser only.

        Item / ServiceHSN/SACGST Rate

        Indicative rates after the 22 Sep 2025 GST rationalisation, for common items only. The exact rate depends on the full HSN/SAC code and conditions, so confirm with official CBIC notifications before invoicing or filing.

        Why FileReadyNow

        More Than a Simple GST Calculator

        Built for shop owners, freelancers, accountants and shoppers who need the exact tax figure, not a rough guess.

        Add or Remove GST

        Work forward from a base price or backward from an MRP that already includes tax. One click switches between the two.

        CGST, SGST & IGST Split

        Pick intra-state or inter-state supply and the calculator splits the tax correctly, the same way it appears on an invoice.

        Multi-Item Invoice

        Add items at different GST rates, seller and buyer GSTIN (validated), get a rate-wise summary, then print, save as PDF or export as CSV.

        Selling Price & Profit

        Enter your cost and margin to get the final selling price with GST, your profit, and the net GST you pay after input tax credit.

        GST Rate Finder

        Not sure of the rate? Search an item or HSN/SAC code and apply the current GST 2.0 rate in one click.

        100% Private

        All calculations run in your browser. Prices, items and totals are never sent to any server.

        What Is a GST Calculator?

        A GST calculator works out the Goods and Services Tax on a price. Enter an amount and a GST rate, and it tells you the tax, the final price, and how the tax is split between the Centre and the State. It works in both directions: adding GST to a base price, or removing GST from a price that already includes it.

        GST Calculation Formulas

        To add GST (exclusive price):

        GST Amount = Original Price × GST Rate ÷ 100
        Final Price = Original Price + GST Amount

        To remove GST (inclusive price):

        Original Price = Final Price × 100 ÷ (100 + GST Rate)
        GST Amount = Final Price − Original Price

        Example: A product costs ₹10,000 before tax at 18% GST. GST = 10,000 × 18 ÷ 100 = ₹1,800, so the final price is ₹11,800. Going the other way, if the MRP is ₹11,800 including 18% GST, the base price is 11,800 × 100 ÷ 118 = ₹10,000.

        Selling Price with Profit Margin and GST

        Selling Price (before GST) = Cost × (1 + Margin ÷ 100)
        Final Price = Selling Price + GST on Selling Price
        Net GST Payable = GST on Sale − GST paid on Purchase (ITC)

        Example: You buy an item for ₹1,000 (+18% GST) and add a 20% margin. Selling price before GST is ₹1,200, GST is ₹216, and the customer pays ₹1,416. With input tax credit of ₹180, you pay only ₹36 to the government, which is 18% of your ₹200 profit.

        CGST, SGST, UTGST and IGST Explained

        • CGST (Central GST): collected by the Central Government on sales within a state. It is half the total GST rate.
        • SGST (State GST): collected by the State Government on the same intra-state sale. It is the other half.
        • UTGST (Union Territory GST): replaces SGST in Union Territories without their own legislature, such as Chandigarh or Ladakh.
        • IGST (Integrated GST): charged on inter-state sales and imports. It equals the full GST rate and is collected by the Centre, then shared with the destination state.
        Sale of ₹10,000 at 18%CGSTSGSTIGSTTotal
        Within the same state₹900 (9%)₹900 (9%)-₹11,800
        To another state--₹1,800 (18%)₹11,800

        Current GST Rate Slabs in India

        After the GST Council's rate rationalisation (often called GST 2.0), effective 22 September 2025, most goods and services fall into two main slabs, 5% and 18%, with a special 40% rate for luxury and sin goods. A few special rates continue.

        RateTypical items
        0% (Nil)Fresh fruit and vegetables, milk, curd, eggs, unbranded flour, books, and individual life and health insurance
        0.25%Rough and cut diamonds, precious stones
        3%Gold, silver and jewellery
        5%Packaged food staples, toiletries such as soap and toothpaste, medicines, economy hotel stays, many daily-use items
        18%Most services, electronics, small cars, ACs, TVs, cement, restaurants inside premium hotels
        40%Luxury cars, aerated and sugary drinks, pan masala, and other luxury or sin goods
        12% / 28%Legacy slabs, now largely merged into 5% and 18% (some items, such as certain tobacco products, may still apply them during the transition)

        Rates depend on the exact HSN/SAC code. Always confirm the current rate for your item on the official CBIC rate notifications before filing returns.

        How to Read a GSTIN

        A GSTIN is a 15-character number. The first 2 digits are the state code (27 = Maharashtra, 07 = Delhi, 29 = Karnataka), the next 10 are the business PAN, the 13th is the entity number, the 14th is usually "Z", and the 15th is a check character. The invoice tab checks the format and the check character, and uses the state codes to suggest CGST + SGST or IGST automatically.

        GST Inclusive vs. GST Exclusive

        • GST exclusive: the price does not include tax yet. Common in B2B quotes and wholesale price lists ("₹10,000 + GST").
        • GST inclusive: the price already contains the tax. Every MRP printed on a retail product in India is GST-inclusive.

        Who Should Use This Calculator

        • Businesses and shopkeepers preparing quotes, bills and tax invoices.
        • Freelancers and consultants adding 18% GST on professional services.
        • Accountants and CAs checking invoices and splitting tax by rate for returns.
        • Shoppers who want to know how much of an MRP is actually tax.

        Step by Step

        How to Use the GST Calculator

        1

        Choose Add GST if your price is before tax, Remove GST if it already includes tax, or Selling Price to add a profit margin.

        2

        Enter the amount and, if needed, the quantity.

        3

        Pick a GST rate, type a custom one, or search your item to find its rate.

        4

        Select Intra-State for CGST + SGST or Inter-State for IGST. Results update instantly.

        5

        For a full bill, switch to Multi-Item Invoice, add your items, then print or download it.

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