Free tools

Business calculators

Quick GST, loan EMI, margin, break-even, and discount calculators for invoicing and pricing decisions.

Compute CGST, SGST, or IGST. Use reverse mode to extract tax from a gross amount.

Forward GST (base → gross)

Base amount (excl. GST)

GST rate (%)

Tax type

Taxable value₹10,000.00

Total GST₹1,800.00

CGST₹900.00

SGST₹900.00

Gross amount₹11,800.00

Use these figures on your MamaInvoice estimates and invoices.