GST Calculator India (2026)

Instantly extract hidden tax from a final bill or add GST to a base invoice with institutional precision.

₹

Logic Core: In Add GST mode, tax is added ON TOP of your base price. In Extract GST mode, the hidden tax is extracted FROM INSIDE your total bill.

Stop Losing Money to Bad Math

When negotiating B2B contracts or setting retail MRPs, confusing inclusive and exclusive GST destroys your profit margin. This engine prevents the infamous "subtraction error" used by amateur accountants.

💡 Did You Know?

In India, the 18% slab is the most widely applied GST rate, covering over 60% of all goods and nearly all software, consulting, and digital services. However, if you are dealing in precious metals like Gold, a special micro-slab of 3% applies.

How to read the Calculator Output

Once you input an amount, the engine breaks the transaction down into three critical lines required for your tax filings:

1
Net Base Price (Your Revenue)
2
CGST / SGST (The 50/50 Split)
3
Total Amount (Customer Pays)

Master Invoice Engineering

Learn the exact reverse-calculation formula and how to structure your invoices to avoid Input Tax Credit (ITC) rejections from the GST portal.

Read the GST Master Guide

Disclaimer & Logic Assumptions:

This calculator is a self-help planning tool for illustrative purposes only and does not constitute a contract or a legal guarantee of returns.

Projected Values:

Calculations are based on compounded annual growth rates (CAGR) and constant interest assumptions. Actual market performance is volatile and may vary significantly.

Statutory Changes:

Government schemes (SSY, PPF, NPS) have interest rates revised quarterly by the Ministry of Finance. This tool uses the current prevailing rate which is subject to change.

Data Accuracy:

While Rupee Logics strives for mathematical precision, users are advised to verify final maturity values with official bank/post office records. Rupee Logics shall not be held liable for any financial decisions made based on these estimates.

Official References:
GST Portal (Govt of India) CBIC Input Tax Credit Rules
Net Base Price
₹10,000
Actual Revenue
Total Tax
₹1,800
18% Slab Applied
Final Total Amount
₹11,800

Tax Split Breakdown

CCGST (9%)
₹900
SSGST (9%)
₹900

Financial Discovery

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