7 Best Free Invoice Software in 2026: The Complete Guide to Free Invoicing Apps

You need to send invoices. You do not want to pay €30/month for the privilege. Fair enough.

The good news: there are genuinely good free invoice software options in 2026. The bad news: "free" does not always mean what you think it means. Some tools limit you to 5 invoices per month. Others charge transaction fees. A few are truly generous.

This guide compares the 7 best free invoicing apps honestly — what you actually get for free, where the catches are, and which free invoice maker fits your situation best.

Quick Comparison Table

Software	Free Invoices	Free Quotes	Clients	AI Assistant	Languages	Hidden Costs
KipBill	Unlimited	Unlimited	5	Yes (voice + chat)	12	None
Wave	Unlimited	Unlimited	Unlimited	No	2	Payment processing fees (2.9%)
Zoho Invoice	5/month	5/month	5	No	15	Upgrade required past limits
Invoice Ninja	Unlimited	Unlimited	Unlimited	No	12	Self-hosted or $10/month for hosted
Factura Directa	3/month	No	3	No	2	Severe limits on free plan
Billin	30/year	No	Unlimited	No	1	Annual invoice cap
Contasimple	5/month	Limited	10	No	1	Very small free allowance

1. KipBill — Best Free Invoice Software for International Freelancers

Free plan includes: Unlimited invoices, unlimited quotes, 5 clients, 3 templates, AI assistant (10 messages/month), receipt scanning

KipBill is the only free invoicing app that includes an AI assistant. You can create invoices by speaking: "Invoice María for web design, €3,500, 21% VAT" — and the invoice is ready in seconds. No forms, no clicking through menus.

What makes KipBill stand out as an invoice generator free option:

• AI-powered invoice creation — by voice or chat, in 12 languages
• Receipt scanning with AI — photograph any receipt, every line item is extracted with correct tax rates
• 12 languages natively — your interface, invoices, and client portal all adapt
• 30+ currencies — invoice international clients without workarounds
• 25 industry-specific templates — photography, construction, legal, dental, fitness, and more

The free plan has no time limit, no trial period, and no credit card required. You can invoice forever at €0. The only limitation is 5 clients — if you have more, the Starter plan is €3/month.

Best for: Freelancers, consultants, and small businesses who invoice internationally or want AI-assisted invoicing.

Try KipBill free →

2. Wave — Best Free Invoice Maker for North American Solopreneurs

Free plan includes: Unlimited invoices, unlimited quotes, unlimited clients, basic reports

Wave has been the go-to free invoice software for years, and for good reason. The core invoicing is completely free with no limits on the number of invoices or clients.

The catch: Wave makes money through payment processing (2.9% + $0.60 per credit card transaction) and payroll services. If your clients pay by bank transfer, you can genuinely use Wave at zero cost. If they pay by card through Wave, those fees add up quickly.

Other limitations:

• Only 2 languages (English and French)
• Limited currency support
• No AI features
• Templates are basic and not industry-specific
• US/Canada-focused — tax calculations and bank integrations are North American

Best for: Solopreneurs in the US or Canada who receive bank transfers and need simple, unlimited invoicing.

3. Zoho Invoice — Best Free Invoice Software for Zoho Ecosystem Users

Free plan includes: 5 invoices/month, 5 quotes/month, 5 clients, time tracking, basic reports

Zoho Invoice is a solid product, but the free plan is quite restrictive at just 5 invoices per month. For most active freelancers, that is not enough.

Where Zoho shines is integration. If you already use Zoho CRM, Zoho Books, or other Zoho products, the invoicing module fits seamlessly into your workflow. The paid plans (starting at $9/month) are competitive.

The free invoice generator free tier works for someone who invoices a handful of clients monthly and wants a professional-looking result. But scaling beyond 5 invoices means paying.

Best for: Users already in the Zoho ecosystem who invoice fewer than 5 clients per month.

4. Invoice Ninja — Best Free Self-Hosted Invoicing App

Free plan includes: Unlimited invoices, unlimited quotes, unlimited clients (self-hosted)

Invoice Ninja is open-source and genuinely free — if you host it yourself. The self-hosted version has no limits at all. You get full invoicing, quoting, expense tracking, and payment integration.

The trade-off is that self-hosting requires technical knowledge. You need a server, a domain, and the ability to maintain a PHP application. For developers or tech-savvy freelancers, this is excellent. For everyone else, it is a barrier.

The hosted version costs $10/month, which removes it from the "free" category entirely.

Best for: Developers and tech-savvy freelancers who want full control and do not mind managing their own server.

5. Factura Directa — Free Invoicing App for Spanish Micro-businesses

Free plan includes: 3 invoices/month, 3 clients, basic templates

Factura Directa is a Spanish invoicing platform that offers a very limited free tier. At 3 invoices per month and 3 clients, it is only suitable for the smallest of businesses.

The platform is solid for Spanish compliance (Modelo 303, Modelo 347, SII), but the free plan is essentially a trial. Most users will need to upgrade within the first month.

Best for: Spanish freelancers who want to test the platform before committing.

6. Billin — Free Invoice Software for Spanish Autónomos

Free plan includes: 30 invoices/year, unlimited clients, basic templates, Modelo 303 preparation

Billin targets Spanish autónomos specifically. The free plan allows 30 invoices per year — roughly 2-3 per month. For a freelancer with a handful of regular clients, this might be enough.

Billin's strength is its Spanish tax compliance features. Even the free plan helps prepare the quarterly Modelo 303 VAT declaration.

However, 30 invoices per year is a hard cap. And there is no AI, no receipt scanning, no multi-language support.

Best for: Spanish autónomos with very few monthly invoices who value tax preparation features.

7. Contasimple — Free Invoicing and Basic Accounting

Free plan includes: 5 invoices/month, 10 clients, basic accounting, expense tracking

Contasimple combines invoicing with basic accounting. The free plan is limited to 5 invoices per month, but it includes expense tracking and basic financial reports.

For Spanish freelancers who want a combined invoicing + accounting solution without paying, Contasimple offers more than most free plans. But 5 invoices per month is still restrictive.

Best for: Spanish freelancers who want basic accounting bundled with their invoicing.

What Does "Free" Really Mean? Exposing Hidden Costs

When evaluating free invoicing apps, watch for these common traps:

1. Invoice Caps

Many tools advertise as "free" but limit you to 3-5 invoices per month. For any active freelancer, that is insufficient. KipBill and Wave offer truly unlimited invoicing on their free plans.

2. Payment Processing Fees

Wave's core invoicing is free, but if clients pay through Wave, you pay 2.9% + $0.60 per transaction. On a €1,000 invoice, that is €29.60. Over a year of €10,000 in payments, you have paid €296 for your "free" software.

3. Feature Gates

Some platforms offer free invoicing but charge for features you will inevitably need: recurring invoices, automatic reminders, multiple currencies, or exporting to PDF. Read the fine print.

4. Trial Periods Disguised as Free Plans

A "free 14-day trial" is not a free plan. After the trial, you pay or lose access. True free plans have no expiration.

5. Client Limits

A limit of 3-5 clients on the free plan is common. If your business grows — and you want it to — you will hit this ceiling quickly. KipBill allows 5 clients free (Starter at €3/month for 50), while Wave allows unlimited.

6. Data Export Restrictions

Some platforms make it easy to import data but difficult to export. Before committing, verify you can export your invoices, client list, and financial data in standard formats (CSV, PDF).

Which Free Invoice Maker Should You Choose?

The answer depends on your situation:

Choose KipBill if:

• You want the most modern free invoice software with AI
• You invoice in multiple languages or currencies
• You want to create invoices by voice or chat
• You need receipt scanning with line-item extraction
• You value professional, industry-specific templates

Choose Wave if:

• You are based in the US or Canada
• You need unlimited clients on the free plan
• You do not need multi-language support
• Your clients pay by bank transfer (avoiding Wave's card fees)

Choose Invoice Ninja if:

• You are a developer comfortable with self-hosting
• You want open-source with no limits
• You do not mind maintaining your own server

Choose Zoho Invoice if:

• You already use other Zoho products
• You invoice fewer than 5 clients per month
• You value ecosystem integration over features

Choose Billin or Contasimple if:

• You are a Spanish autónomo
• You need tax compliance (Modelo 303) built in
• You have very few monthly invoices

The Bottom Line

For most freelancers and small businesses searching for a free invoicing app, KipBill offers the best combination of features at zero cost. Unlimited invoices, unlimited quotes, an AI assistant, 12 languages, and 30+ currencies — no other free plan matches this.

The AI assistant alone sets KipBill apart. Creating an invoice in 15 seconds by voice instead of 5 minutes of form-filling changes how you feel about invoicing. It goes from a chore to a non-event.

If you are ready to try the best invoice generator free, start with KipBill. No credit card, no trial period, no catches.

Start invoicing free with KipBill →