GST Calculator

Precision tax modeling for modern enterprise. Calculate GST inclusive or exclusive amounts with institutional-grade accuracy and instant CGST/SGST breakdown.

Fiscal Parameters

Aurora Fiscal v2.0

Amount

₹

₹ 1₹ 10,00,00,000

Initial base or total amount

GST Rate (%)

0100

Standard GST rates (5%, 12%, 18%, 28%)

Calculation Mode

Fiscal Intelligence

ITC Benefits: Ensure you collect valid GST invoices to claim Input Tax Credit on business expenses.

Filing Deadlines: Monthly filing is mandatory for regular taxpayers to avoid heavy late fees.

Composition Scheme: Smaller businesses can opt for a lower fixed tax rate without ITC benefits.

Compliance Checklist

Verify GSTIN of your suppliers

Match HSN/SAC codes accurately

Maintain digital records for 6 years

Check for RCM (Reverse Charge) applicability

HSN Precision

Businesses with turnover > ₹5Cr must use 6-digit HSN codes on all B2B and B2C invoices for absolute compliance.

GRAND TOTAL₹11,800

NET AMOUNT₹10,000

TOTAL GST₹1,800

Fiscal Load

Tax Ratio15.3%

Base Value

₹10,000

Tax Component

₹1,800

Compliance Ledger

Audit View

Component	Rate	Value
CGST (Central)	9%	₹900
SGST (State)	9%	₹900
IGST (Inter)	18%	₹1,800
Effective Tax		₹1,800

Institutional Tax Audit

Generate a comprehensive compliance summary using the Aurora AI Engine.

The Math Behind GST

How is GST Exclusion calculated?

To add GST to a base price, we use: GST Amount = (Base Price x GST%) / 100. Total Price = Base Price + GST Amount.

How is GST Inclusion calculated?

To remove GST from a total price, we use: Net Price = (Total Amount x 100) / (100 + GST%). GST Amount = Total Amount - Net Price.

What is the 50/50 tax split?

For intrastate sales, the tax is split equally between the Central Government (CGST) and the State Government (SGST). This ensures balanced revenue distribution.