Looking for a free invoicing solution that goes beyond basic invoice templates? Below are 20 free invoicing software options that offer customizable templates, automated billing, client portals, and more—perfect for freelancers, small businesses, and startups.
Get targeted exposure with custom position pinning and highlighted placement.
Comprehensive free accounting suite with unlimited invoicing, receipt scanning, and bank reconciliation.
Feature‑rich invoicing tool with customizable templates, automated reminders, and multi‑currency support for up to 5 customers.
Open‑source invoicing platform offering unlimited invoices, proposals, and time tracking for up to 100 clients.
Simple, free invoicing integrated with PayPal payments; includes basic templates and automatic payment reminders.
Free invoicing tool with customizable templates, instant online payments, and automatic receipt generation.
Free tier provides unlimited invoices, multi‑currency support, and basic reporting for small businesses.
Free invoicing and expense management with auto‑data entry via MagicBot and customizable invoice designs.
Time‑tracking focused invoicing with free plan for one user; includes simple invoice templates and expense capture.
Mobile‑first invoicing app offering basic templates, client management, and instant PDF generation.
Free tier for very small businesses; provides professional invoice templates, automated reminders, and client portal.
Open‑source, self‑hosted invoicing system with unlimited invoices, recurring billing, and template customization.
Simple cloud invoicing with clean templates, automatic tax calculations, and client portal (free 30‑day trial).
Freelancer‑focused invoicing with customizable templates, time tracking, and expense integration.
Free mobile app version offering on‑the‑go invoice creation, template editing, and instant payment links.
Free online invoicing with over 100 template designs, automatic tax calculations, and PDF export.
PHP‑based open‑source invoicing system with unlimited invoices, custom fields, and template editing.
Free invoicing for startups with unlimited invoices, recurring billing, and integration with Stripe/PayPal.
Desktop invoicing software with customizable templates, multi‑currency, and offline capability.
Free plan includes API access for developers to generate invoices programmatically with custom templates.
Free tier offers up to 5 invoices per month, basic template customization, and online payment links.