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Invoice Total Calculator

Free online invoice total calculator — no signup required. Generate and download professional documents instantly.

Add Line Items

About This Tool

Calculate invoice totals accurately with our free invoice calculator. Add multiple line items, apply percentage or fixed discounts, set tax rates (sales tax, VAT, or GST), and see the final amount due in real time. Supports multiple tax rates on different line items. Great for double-checking invoices before sending or estimating project costs. Our calculator handles complex invoices with ease, including partial payments, deposits already paid, and late fees.