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GST Calculator

GST Calculator

Add or remove Goods and Services Tax (GST) with standard tax brackets and CGST/SGST splits.

Tax Compliant
100% Client-Side • No server data transfer • Private & Free Forever
Updated for 2026 GST Council (October 27, 2026): Standard 5%, 12%, 18%, 28% brackets + 3% Gold slab; CGST/SGST 50:50 revenue split
$
10,000 $
0 $250000 $
Quick Presets:

GST Tax Computation

Total Payable Amount
$11,800
Total GST Amount
$1,800
Central GST (CGST - 50%)
$900
State GST (SGST - 50%)
$900
Total Payable$11,800
Private & Secure: 100% computed in browser. Zero data or files sent to servers.

Direct Answer: Our GST Calculator computes both GST-inclusive and GST-exclusive amounts, giving exact splits for Central GST (CGST) and State GST (SGST).

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About GST Calculator

Navigating Goods and Services Tax (GST) is an everyday necessity for accountants, freelance professionals, e-commerce sellers, and enterprise finance teams. ConvertSheet's GST Calculator simplifies tax compliance by providing instant breakdowns between buyer-paid totals, seller revenues, and CGST/SGST allocations.

Formula & Computation Model
Exact Computation
Exclusive: GST = Base × Rate / 100
Inclusive: Base = Total / (1 + Rate / 100)
Tax = Total - Base.
Step-by-Step Guide

How to Convert GST Calculator to Result Online in 3 Simple Steps

Convert your data effortlessly with zero installations and complete local privacy.

  1. 1Step 1:

    Enter Amount

    Type the net base amount or the gross final price.

  2. 2Step 2:

    Select Tax Slab

    Pick a standard rate (5%, 12%, 18%, 28%) or enter a custom percentage.

  3. 3Step 3:

    Choose Mode

    Toggle between 'Add GST' (Exclusive) or 'Remove GST' (Inclusive).

Help & Documentation

Frequently Asked Questions: GST Calculator

Answers to common questions regarding inputs, calculations, and mathematical methodology.

How is GST split between CGST and SGST?

For intra-state transactions within the same state, GST is divided equally: 50% as Central GST (CGST) and 50% as State GST (SGST).

When is IGST applied instead?

Integrated GST (IGST) is applied to inter-state sales and international imports where the central government collects the full tax.

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