Free Tax and VAT Invoice Calculator
Use this tax and VAT calculator to quickly work out invoice tax amounts and the final total your client should see.
Why this page exists
Calculate subtotal, tax amount, and invoice total using a custom VAT or tax rate.
Built for real invoice workflows
Once your totals look right, InvoiceAgent can turn them into a scheduled PDF invoice.
Subtotal
$2,400.00
Tax
$360.00
Total
$2,760.00
How to use it
Enter your invoice subtotal before tax.
Add the tax or VAT percentage that applies to the invoice.
Review the tax amount and the final invoice total.
Why it helps
Check your numbers before creating the invoice.
Useful for freelancers, consultants, and agencies handling mixed tax rates.
Makes it easier to price retainers and project invoices confidently.
From free tool to live invoice workflow.
Once your numbers and dates look right, InvoiceAgent can create the scheduled invoice, generate the PDF, send reminder emails, and dispatch it with live FX conversion at send time.