Top 30 Free Invoicing Software with Automatic Tax Calculations

Curated list of the top 30 free invoicing tools that automatically calculate taxes for invoices.

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Verified Options & Solutions

Free accounting suite with unlimited invoices, automatic tax calculation, and receipt scanning.

Free tier (up to 5 customers) with automatic tax rules, multi‑currency support, and client portal.

Free plan (up to 100 clients) includes tax‑aware invoicing, recurring invoices, and online payments.

Free cloud invoicing with automatic tax calculations, expense tracking, and receipt OCR.

Free PayPal‑based invoicing that auto‑applies tax rates and lets customers pay instantly.

Free invoicing from Square with built‑in tax calculation, payment links, and delivery tracking.

Free tier (unlimited invoices) with tax‑enabled templates, multi‑currency, and client portal.

Open‑source accounting platform; free invoicing module auto‑calculates taxes and supports extensions.

Self‑hosted, open‑source invoicing tool with customizable tax rules and PDF generation.

Free, open‑source invoicing software that lets you define tax rates per client or product.

#12 ZipBooks

Free plan includes unlimited invoices, automatic tax calculation, and basic reporting.

Free community edition of Odoo with invoicing module that supports tax rules and multi‑company.

Open‑source ERP that includes a tax‑aware invoicing engine and client management.

#15 ERPNext

Free, open‑source ERP with robust invoicing, automatic tax calculations, and GST support.

UK‑focused free accounting software with automatic VAT calculation on invoices.

#17 Hiveage

Free plan for freelancers (up to 5 clients) with tax‑enabled invoices and online payments.

#18 Fakturama

Open‑source invoicing app with configurable tax rates, multi‑currency, and PDF export.

Free online invoicing with tax fields, customizable templates, and email delivery.

#20 SlickPay

Free invoicing platform that auto‑applies tax percentages and integrates with Stripe.

Mobile‑first free invoicing app with automatic tax calculation and client management.

Free for qualified non‑profits; includes tax‑aware invoicing, GST/VAT handling, and reporting.

30‑day free trial with tax‑enabled invoicing, auto‑calculated sales tax, and expense tracking.

30‑day free trial offering automatic tax calculations, multi‑currency invoices, and online payments.

Free 30‑day trial with tax‑aware invoicing, time‑tracking integration, and client portal.

#26 SleekBill

Free invoicing SaaS with built‑in tax rules, recurring invoices, and PDF generation.

Open‑source self‑hosted version; unlimited invoices with automatic tax calculations.

#28 Billdu

Free invoicing app for small businesses with tax calculation, multi‑currency, and client reminders.

Free for Indian users; includes GST auto‑calculation, e‑way bill generation, and compliance reports.

Free tier (up to 5 invoices/month) with tax‑aware templates and Stripe/PayPal integration.

#31 Paydirt

Free invoicing platform with automatic tax calculations, recurring billing, and client portal.

Free web‑based invoicing with tax rules, multi‑currency support, and email delivery.

Free plan includes unlimited invoices, automatic tax calculations, and online payment links.