The Best Free Invoicing Software in 2026

Barış Çelik — Thu, 18 Jun 2026 14:50:28 +0000

📌 Originally published on the Inkvoice blog.

"Free" invoicing software ranges from genuinely free forever to "free until you need the one feature you actually want." This is an honest rundown of the best free options in 2026, what each is really good at, and where the catch is.

Disclosure: we build one of the tools on this list (Inkvoice). We've tried to keep the comparison fair — every tool here is a reasonable pick depending on what you need.

What "free" should actually get you

Before the list, the bar. A free invoicing tool worth using should let you:

Create unlimited, professional invoices (no per-invoice cap).
Reuse clients and line items instead of retyping them.
Send quotes/estimates and recurring invoices.
Track what's paid and what's outstanding.
Export your own data, so you're never locked in.

A quick note on "online payments": several tools advertise "get paid online," which means they take a processing fee per transaction. That's a paid feature wearing a free hat — worth knowing when you compare.

The shortlist

Tool	Free tier	Open source	Self-host	Best for
Inkvoice	Full, no caps	Yes (MIT)	Yes	Owning your data; freelancers who self-host
Wave	Invoicing + accounting	No	No	US/Canada small businesses
Zoho Invoice	Generous, polished	No	No	Solo users inside the Zoho ecosystem
Invoice Ninja	Free tier + OSS	Yes	Yes	Power users who want every feature

Inkvoice

Free and open-source (MIT), with no invoice caps. You get the get-paid-faster toolkit — recurring invoices, quotes, customer statements, and read receipts (see when a client opened the invoice) — plus professional PDF templates, multi-currency and multi-language (EN/TR). The wedge versus the hosted-only tools is ownership: you can self-host it in minutes (Docker, Dokploy, Coolify) or use the hosted version, and your data is always yours to export. It records payments rather than processing them, so there are no transaction fees — you mark invoices paid as the money lands.

Best for: freelancers and small teams who want a clean, modern tool and want to own their data.

Wave

Wave has long been a popular free pick because it bundles invoicing with real accounting. The trade-offs: it's closed-source and hosted-only (your data lives on their servers), and its strongest features are oriented around US/Canada. If you want bookkeeping and invoicing in one free place and you're in a supported region, it's solid.

Zoho Invoice

Genuinely free and very polished, especially if you already live in Zoho's ecosystem. It's closed-source and hosted-only, and the free tier is aimed at solo users — but for a clean, no-cost invoicing experience it's hard to fault.

Invoice Ninja

The other big open-source name. Very feature-rich with a free tier and a self-host option. That power comes with more setup and a heavier footprint than a minimal tool — great if you want every knob, more than you need if you just want to send clean invoices fast.

How to choose

Want to own your data / self-host? → an open-source tool (Inkvoice or Invoice Ninja).
Want bookkeeping bundled in and you're in the US/Canada? → Wave.
Want the most polished hosted free tier and you use Zoho? → Zoho Invoice.
Want lightweight, modern, and yours, without transaction fees? → Inkvoice.

The honest summary: any of these will send a professional invoice for free. The real differentiator in 2026 is lock-in — whether you can pick up your data and leave. If that matters to you, start with an open-source option.

Get the free invoice-template pack

Five polished, ready-to-send invoice templates (Google Docs, Excel, Word & PDF) — free, no payment, no lock-in.

Download the free templates →

Rather skip the busywork? Inkvoice is free, open-source invoicing you actually own — self-host it free, or let us host it. Try Inkvoice free.

Free Invoice Template (Google Docs, Excel, Word & PDF)

Barış Çelik — Thu, 18 Jun 2026 14:50:24 +0000

📌 Originally published on the Inkvoice blog.

A clean, correct invoice is the difference between getting paid in a week and chasing a client for a month. You don't need accounting software to send one — a good template will do. This post gives you free invoice templates in the formats you actually use (Google Docs, Excel, Word and PDF) and walks through what belongs on every invoice so nothing slows down the payment.

What every invoice must include

Whether you build it in a spreadsheet or a dedicated tool, an invoice that gets paid quickly has all of these:

The word "Invoice" and a unique invoice number (e.g. 2026-014). Sequential numbers keep your records clean and make late invoices easy to reference.
Your details — name or business name, address, email, and tax/VAT number if you have one.
Your client's details — the company name, a contact person, and their billing address.
Issue date and due date (or terms like "Net 14"). A concrete due date gets paid faster than "due on receipt."
Line items — a clear description, quantity, unit price, and line total for each piece of work.
Subtotal, tax, and total — show tax as its own line so the client can reconcile it.
Payment details — bank/IBAN, or whatever method you've agreed on, plus any reference the client should include.
A short note — a thank-you and your terms (late fees, deposit policy) in one line.

Which format should you use?

Format	Best for	Watch out for
Google Docs / Sheets	Editing from anywhere, sharing a link	Always export to PDF before sending
Excel / Sheets	Auto-calculating totals and tax	Easy to leave a stray formula or typo
Word	A polished, design-controlled layout	Manual math — double-check the totals
PDF	The version you actually send	Not editable, so keep your source file

The golden rule: edit in Docs/Sheets/Word, but always send a PDF. A PDF looks identical on every device, can't be accidentally changed by the client, and reads as more professional.

How to fill it in (2 minutes)

Duplicate the template so you keep a clean original.
Set the invoice number — bump it by one from your last invoice.
Fill your details once; save that as your master copy.
Add the client and the line items. Keep descriptions specific ("Homepage redesign — 12 hrs") so there are no questions.
Check the math, set a real due date, and export to PDF.
Email it with a one-line message and the due date in the subject.

Common mistakes that delay payment

No due date. "Due on receipt" is vague; a date isn't.
A vague description. "Consulting" invites questions; "Q2 analytics setup — 8 hrs @ $90" doesn't.
Reused invoice numbers. Duplicates confuse your records and your client's accounts payable.
Forgetting tax. If you're registered, show it as its own line.
Sending an editable file. Send the PDF; keep the source.

When a template stops scaling

Templates are perfect for your first dozen invoices. The friction shows up later: you're copy-pasting client details, manually bumping invoice numbers, rebuilding the same recurring bill every month, and you have no idea whether the client even opened the last one.

That's the point where a lightweight tool pays for itself. Inkvoice is free, open-source invoicing that keeps the simplicity of a template but automates the tedious parts — reusable clients and line items, automatic sequential numbering, recurring invoices, quotes, customer statements, and read receipts so you can see when a client has opened an invoice. (Payments are recorded by you — Inkvoice tracks what's paid and outstanding; it doesn't process card payments.) You can self-host it in minutes or use the hosted version, and your data is always yours to export.

Start with the free template pack below — and when copy-pasting starts to hurt, you'll know where to look.

Get the free invoice-template pack

Five polished, ready-to-send invoice templates (Google Docs, Excel, Word & PDF) — free, no payment, no lock-in.

Download the free templates →

Rather skip the busywork? Inkvoice is free, open-source invoicing you actually own — self-host it free, or let us host it. Try Inkvoice free.

DEV Community: Barış Çelik

The Best Free Invoicing Software in 2026

What "free" should actually get you

The shortlist

Inkvoice

Wave

Zoho Invoice

Invoice Ninja

How to choose

Get the free invoice-template pack

Free Invoice Template (Google Docs, Excel, Word & PDF)

What every invoice must include

Which format should you use?

How to fill it in (2 minutes)

Common mistakes that delay payment

When a template stops scaling

Get the free invoice-template pack