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Free GST Calculator

Calculate GST Instantly (Inclusive & Exclusive)

Use this free GST calculator by Startup Movers to evaluate your GST liability in seconds, based on:

  • Transaction type: intra-state (CGST + SGST) or inter-state (IGST)
  • Applicable GST rate slab: 0%, 5%, 18%, or 40%
  • Whether your amount is GST inclusive or exclusive

Please enter a valid amount.

Base amount โ‚น0.00
GST (0%) โ‚น0.00
CGST (0%) โ‚น0.00
SGST (0%) โ‚น0.00
Total amount โ‚น0.00

This calculator gives an indicative figure based on the rate you select. Actual GST liability depends on your HSN/SAC classification, place of supply and any applicable cess or exemption.

How to Use the GST Calculator? (Follow 3 Simple Steps)

Step 01: Choose Calculation Type:

GST Exclusive: Use this when your entered amount does NOT include GST. The calculator will add GST on top and show you the final amount payable.

GST Inclusive: Use this when your entered amount already includes GST. The calculator will break it down into the base price and GST component.

Step 02: Enter the Amount:

Type in the base amount for exclusive calculation or the total amount for inclusive calculation.

Step 03: Select the GST Rate:

Choose the applicable rate: 0%, 5%, 18%, or 40% (or enter a custom rate if your product/service falls under a different slab).

Step 04: Type of Supply:

Choose if the supply is Intra-state (CGST + SGST) or Inter state (IGST).

Instantly Calculation view:

That's it. No sign-up, no downloads - just quick, accurate GST calculations whenever you need them.

What Does This GST Calculator Offer?

Dual Calculation Modes: Switch seamlessly between GST-inclusive and GST-exclusive calculations depending on your invoicing or pricing need.

All GST Slabs Covered: Supports standard rates (0%, 5%, 18%, 40%) plus custom rate entry for special cases.

Instant, Error-Free Results: Removes the risk of manual calculation mistakes on invoices, quotations, and financial statements.

CGST/SGST & IGST Breakdown: Get a clear split of tax components so you know exactly what's applicable.

Free & Unlimited Use: No login, no restrictions, calculate as many times as you need.

Mobile-Friendly: Works smoothly on any device, so founders and finance teams can calculate on the go.

Who can use this Calculator?

Startup founders, freelancers, small business owners, accountants, and anyone who needs to quickly calculate GST while creating invoices, setting product prices, or reviewing vendor bills, can use this calculator. This is completely free of cost and for error free calculations.

What is GST?

GST (Goods and Services Tax) is a single, unified indirect tax levied on the supply of goods and services across India. Introduced on July 1, 2017, GST replaced multiple cascading taxes like VAT, Service Tax, Excise Duty, and others, bringing India under a "One Nation, One Tax" system.

GST is charged at every stage of the supply chain but is ultimately borne by the end consumer, with businesses able to claim Input Tax Credit (ITC) on the tax they've already paid on purchases.

GST is categorized into:

CGST (Central GST): Collected by the Central Government

SGST (State GST): Collected by the State Government

IGST (Integrated GST): Applicable on inter-state transactions, collected by the Central Government

Benefits of GST Registration for Your Startup

Legal Recognition: GST registration gives your business legal standing to collect tax from customers and issue GST-compliant invoices.

Input Tax Credit (ITC): Claim Input Tax Credit for GST paid on business purchases, reducing your overall tax outgo.

Seamless Interstate Business: Sell across state lines without the compliance headaches of the pre-GST regime.

Higher Credibility: A GSTIN builds trust with vendors, investors, and B2B clients, especially important when working with larger companies or government tenders.

Eligibility for E-commerce Selling: Mandatory for selling on e-commerce platforms like Amazon, Flipkart, and Meesho.

Composition Scheme Access: Small businesses with turnover under the threshold can opt for the Composition Scheme, enjoying lower tax rates and simplified compliance.

Avoid Penalties: Operating above the mandatory turnover threshold without GST registration attracts penalties, registering keeps your startup compliant from day one.

Access to Loans & Funding: Many lenders and investors view GST compliance as a sign of a legitimate, well-run business.

Planning to Apply for GST Registration?

Connect with Startup Movers, and we will guide you throughout the process.

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