What are the common GST slabs in India?

The primary GST tax slabs in India are 0% (exempt), 3%, 5%, 12%, 18%, and 28%.

What is the difference between CGST, SGST, and IGST?

CGST (Central) and SGST (State) are split equally for sales within the same state. IGST (Integrated) is applied as a single combined tax for interstate sales.

Business Tool

GST Calculator

Calculate CGST, SGST, IGST and totals for all GST slabs including 18% and 28%. Perfectly formatted for Indian business standards.

Base Amount (?) *

Calculation Type

GST Tax Slab

Calculating...

Calculation Summary

Net / Base Price:

CGST ():

SGST ():

Total Tax Amount (IGST):

Final Inclusive Amount

How to Use the GST Calculator

Enter Amount

Provide your bill amount. It can be just the base price of your commodity, or the total inclusive amount you received.

Select Slab & Type

Choose "+ Add GST" to apply tax on top of your amount. Choose "- Remove GST" to reverse-calculate the hidden tax inside the total.

Copy Result

The correct CGST, SGST and IGST breakdowns calculate automatically. Copy them straight into your accounting books.

GST in India - What Every Business Owner Must Know

GST simplified indirect taxation by merging multiple central and state taxes into a unified framework. Correct GST calculations are essential for compliant invoicing and accurate pricing.

Whether you are adding GST to base prices or reverse-calculating tax from inclusive totals, fast and error-free computation saves time and reduces filing issues.

This calculator helps businesses, freelancers, and accountants quickly compute total GST, taxable value, and tax split components.

💼 GST Compliance and Tax Planning Tips

Track Thresholds

Monitor turnover and interstate supply criteria to determine timely registration obligations.

File on Time

Maintain return calendars to avoid late fees, interest, and input credit disruptions.

Use Correct HSN/SAC

Accurate classification reduces mismatch notices and improves return consistency.

Reconcile Regularly

Match invoices, ledgers, and portal data monthly to catch tax differences early.

Frequently Asked Questions

Goods and Services Tax (GST) is an indirect tax used in India on the supply of goods and services. It is a comprehensive, multi-stage, destination-based tax.

To add GST to a base amount: Amount * (1 + (Rate/100)).

To remove GST from an inclusive amount: Amount / (1 + (Rate/100)) to find the base price. Our calculator performs these complex equations instantly when you click "Remove GST".

The primary GST tax slabs mapped by the government in India are 0% (exempted), 3%, 5%, 12%, 18%, and 28%. We have provided all standard buttons in the tool for your ease.

CGST (Central) and SGST (State) are split equally for sales within the same state (Intra-state). IGST (Integrated) is applied as a single combined tax for interstate sales (Inter-state) across separate state lines.

Select 'Remove GST' in the calculator above. Enter your final inclusive price. It will extract the original base price and the tax components backwards from your total inclusive amount.

Yes, our GST calculator is 100% free with no login required, serving Indian businesses and startups permanently.

Imports attract IGST at customs on assessable value plus applicable duties, with credit available subject to eligibility.

The composition scheme allows eligible small taxpayers to pay tax at a fixed rate with reduced compliance, but with restrictions like no input credit claims.

HSN/SAC codes define tax classification and rates. Incorrect coding can cause return mismatches and notices.

An e-way bill is generally required for movement of goods beyond threshold value limits, subject to notified exemptions.

Refunds are filed on the GST portal with supporting documents for cases like zero-rated supplies or excess tax paid.

Audit requirements depend on prevailing legal thresholds and notifications. Businesses should follow current GST rules and advisor guidance.

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