Simplifying GST for Every Indian Business
My GST Calc (mygstcalc.in) is a fast, modern, and 100% free Goods & Services Tax calculation suite engineered to eliminate guesswork, speed up invoicing, and ensure statutory compliance for FY 2026-27.
Our Mission
India's GST ecosystem is comprehensive and dynamic. Our mission is to democratize access to accurate, instantaneous, and zero-clutter tax calculation tools so that small traders, freelance creators, accountants, and enterprises can determine their exact tax liabilities in seconds.
The Client-Side Difference
Most online calculators send your confidential numbers to remote servers, causing latency and privacy concerns. At My GST Calc, 100% of the mathematical calculations happen locally in your browser. It is instantaneous, offline-ready, and guarantees that your financial data remains yours alone.
Comprehensive Compliance & Calculation Suite
Every tool is specifically designed to adhere to the Central Goods and Services Tax (CGST) Act, State GST (SGST) Acts, and Integrated GST (IGST) rules.
Universal GST Calculator
Calculate Inclusive, Exclusive, CGST/SGST/IGST split, and multi-item invoices.
GST Invoice Generator
Create stylish tax invoices with 5 themes, bank details, and A4 PDF download.
ITC Calculator (Sec 16 & 17)
Determine net eligible Input Tax Credit and handle Section 17(5) blocked credit.
Reverse Charge (RCM) Calc
Section 9(3) Reverse Charge computations for GTA freight, legal services & more.
Late Fee & Penalty Calc
Automated Section 47 late fees & Section 50 interest calculations on delayed returns.
TDS on GST (Sec 51)
Calculate 2% statutory TDS deductions for public sector, government & local bodies.
Composition Scheme Calc
Calculate CMP-08 quarterly turnover tax liabilities for traders, manufacturers & dining.
HSN & SAC Code Finder
Instant search across 20,000+ official Indian goods and service tariff codes.
GST Due Date Calendar
Statutory monthly and quarterly return deadlines for GSTR-1, GSTR-3B, CMP-08 & QRMP.
How GST is Calculated: Verified Worked Examples
Transparent, standard computational formulas compliant with Indian GST statutory guidelines for FY 2026-27.
Consider a taxable service or goods sale of ₹10,000 attracting an 18% GST rate:
For inter-state supplies, the full 18% is billed as IGST (₹1,800.00). Formula: GST = Base Amount × Rate / 100.
Consider a retail MRP or final billing amount of ₹11,800 that already includes 18% GST:
Reverse formula: Base = (Total × 100) / (100 + Rate); GST Component = Total − Base.
Why Indian Taxpayers Trust Us
Client-Side Privacy
Zero server data storage. Your financial calculations remain on your device.
100% Free Forever
No subscriptions, no mandatory logins, and no hidden paywalls.
FY 2026-27 Aligned
Updated in accordance with official GST Council notifications and CBIC circulars.
Have Questions or Suggestions?
We are constantly working to improve My GST Calc for Indian taxpayers, accountants, and businesses. If you encounter an issue or have an idea for a new feature, our team is here to assist.