Formulas

Invoice Total with Tax

Finance

GST-aware invoice total used for Sales and Purchase invoices.

Expression

Total = Subtotal + (Subtotal × Tax_rate)
Tax_amount = Subtotal × Tax_rate

Inputs

Subtotal
₹
Tax_rate
%

Typically 12% or 18% GST.

Output

Total
₹

Worked Example

Subtotal

₹15,00,000

Tax_rate

12%

Result:Tax ₹1.80 L · Total ₹16.80 L

Where it's Used
2

Sales Invoices — Create

Auto-calculates tax on subtotal entry.

/invoices

Purchase Invoices — Detail

Displays subtotal, tax, and total.

/purchase-invoices