GST Calculator

Compute GST without logging in. Choose the rate, enter the amount, and see both values instantly. No account, no login ever needed.

Calculate GST

GST Amount

0

Net Amount / Gross Amount

0

Net Amount

0

Gross Amount

0

GST Rate Information

GST Rate Applicability
0% Certain essential goods and services (e.g., specific food grains, certain health services, religious services).
5% Commonly used goods and services (e.g., packaged food items, certain medicines, essential services, transport services).
12% Processed food items, certain textile products, some services (e.g., non-AC restaurants, specified construction services).
18% Most goods and services (e.g., financial services, telecom services, IT services, branded garments, industrial intermediaries).
28% Luxury goods, sin goods, and certain services (e.g., automobiles, aerated drinks, tobacco products, cinema tickets, gambling).
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Step-by-Step Guide

Calculate GST Payments in 4 Easy Steps

Quickly add or remove Goods and Services Tax (GST) from any transaction amount.

1
Enter Base Amount

Enter the initial amount of the transaction before tax (or the total cost if extracting tax).

Gross Amount Net Amount
2
Select GST Rate

Choose from standard regulatory slab rates (e.g. 5%, 12%, 18%, 28%) or enter a custom tax rate.

Tax Slab Custom Slabs Standard Percentages
3
Choose Calculation

Choose whether to add tax (GST Inclusive) or remove tax (GST Exclusive) from the base amount.

GST Inclusive GST Exclusive Back-Calculation
4
Analyze Breakdown

Instantly view the net price, tax amount, CGST/SGST split, and the total gross sum.

Tax Split Stats Final Bill Price
Local sandbox processing
Statutory formula alignments
100% Private offline session
Financial Tools

Accurate GST Computations for Businesses & Shoppers

Calculate inclusive/exclusive taxes, determine state splits, and plan transaction values dynamically.

Dual Calculation Modes

Toggle between adding tax to get the final bill or removing tax to determine the original pre-tax value.

CGST & SGST Split

Automatically divides the calculated GST into Central GST (CGST) and State GST (SGST) for local tax filing.

Standard Tax Slabs

Quick-click buttons for regulatory tax rates, making standard audits and billing fast.

Instant Calculations

Values calculate instantly as you type, with zero lag or screen reloads.

Formulas aligned with standard revenue rules
Calculations remain private in your browser
Perfect for invoicing and retail pricing plans
FAQ

Common Questions

Get answers to common questions about tax rates, state splits, inclusions, and exclusions.

What is the difference between GST Inclusive and GST Exclusive?
GST Inclusive means the price of the item already includes the tax amount. GST Exclusive means the price shown is the base price, and the tax needs to be added to find the final cost.
How is GST Inclusive calculated (extracting tax)?
To remove tax from an inclusive price, the formula is: GST Amount = Original Price - [Original Price * (100 / (100 + GST%))]. The base price is then found by subtracting this tax from the original price.
What are CGST, SGST, and IGST?
Under a dual GST system (like India's), CGST (Central GST) and SGST (State GST) are levied on intra-state transactions and are split 50:50. IGST (Integrated GST) is collected on inter-state transactions and goes directly to the central government.
Can I enter a negative or zero tax rate?
No. Tax rates must be positive numbers. For zero-tax or exempt goods, set the tax rate to 0% to see a matching base-to-gross ratio.
Are the calculations compliant with official government calculators?
Yes. Our GST calculator uses standard mathematical tax rules, producing identical results to official tax portals.