Invoice Total Calculator
Calculate final invoice amount with tax.
Input Values
Adjust parameters below
10100,000
₹
030
%
RESULT
Invoice Total
$1,180
MONEY
Tax Amount
$180How It Works
Guide and Formula
Invoice Total Calculator
Calculate the final invoice amount including tax.
Invoice Formula:
\text{Invoice Total} = \text{Subtotal} \times (1 + \frac{\text{Tax Rate}}{100})
\text{Tax Amount} = \text{Subtotal} \times \frac{\text{Tax Rate}}{100}
Invoice Components
Subtotal: Sum of all line items before tax
Tax Rate: Applicable tax percentage (GST, VAT, Sales Tax)
Tax Amount: Calculated tax on the subtotal
Invoice Total: Final amount the customer pays
Common Tax Rates
India: 5%, 12%, 18%, 28% (GST)
US: Varies by state (0-10%+)
UK: 20% (VAT)
EU: Varies by country (17-27%)
?FAQs
How do I calculate tax backwards from total?
Subtotal = Invoice Total ÷ (1 + Tax Rate%). For example, if total is ₹1180 including 18% GST: Subtotal = ₹1180 ÷ 1.18 = ₹1000.
What's the difference between subtotal and total?
Subtotal is the sum of items before tax/discount. Total is the final amount including tax and after any discounts.
Should I include tax in my invoice?
In most jurisdictions, you must show tax separately on invoices if you're registered for tax (GST, VAT, etc.). Check local tax regulations.