Freelancers and small businesses have dozens of invoicing tools to choose from, at wildly different price points and with very different tradeoffs. Here's an honest comparison of the top options.
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Most invoicing tools are priced for full accounting suites, freelancers pay $21 to $65/month for features they don't need
Closed SaaS tools mean your client data, invoice history, and payment records are owned by someone else's servers
Per-client or per-invoice pricing tiers are a common gotcha, read the fine print before committing
True open-source options (MIT license) are rare, most 'open source' tools have commercial-use restrictions baked in
Avoid tools that escalate costs based on client count, invoice volume, or team size. One flat price is a sign of a tool built for your scale.
Stripe and PayPal integration built in means clients pay directly from the invoice. Getting paid faster is the whole point.
If you manage retainer clients, automatic recurring invoices remove a manual task from every billing cycle.
Can you export everything cleanly? Is there a self-hosted option so your data never leaves your infrastructure?
MIT or Apache 2.0 licenses mean no commercial-use restrictions. Elastic License v2 tools are source-available, not open source.
Check for caps on active clients, users, or invoices on lower tiers, these are upsell traps, not features.
Honestly reviewed, including real alternatives, not just our own product.
The lowest-priced professional invoicing tool, cloud from $9/mo, or self-host free with MIT license.
Best for: Freelancers and small businesses who want professional invoicing at the lowest possible price, with full data ownership
Strengths
Limitations
Clean invoicing + accounting for service businesses. Starts at $21/mo with client caps.
Best for: Service businesses and freelancers who want accounting + invoicing in a polished interface, and can afford $21 to $65/month
Strengths
Limitations
The most powerful small business accounting suite. Overkill for pure invoicing.
Best for: SMBs needing full accounting: payroll, inventory, 1099 filing, detailed P&L
Strengths
Limitations
Free invoicing and accounting for micro-businesses. Ad-supported.
Best for: Very small businesses or new freelancers with zero budget and low volume
Strengths
Limitations
Free invoicing, designed to pull you into the Zoho product ecosystem.
Best for: Businesses already using Zoho CRM or other Zoho products
Strengths
Limitations
Feature-rich open-source invoicing, Elastic License v2, not MIT.
Best for: Power users who need extensive features (proposals, time tracking, client portal) and want self-hosting
Strengths
Limitations
| Tool | Price | Free Option | Open Source | Self-Hostable |
|---|---|---|---|---|
| SolidInvoice(recommended) | from $9/mo | Free self-hosted | MIT License | |
| FreshBooks | $21 to $65/mo | |||
| QuickBooks Online | $35+/mo | |||
| Wave | Free | Free forever | ||
| Zoho Invoice | Free (1 user) / $15/mo | Free (1 user limit) | ||
| Invoice Ninja | $10 to $14/mo hosted | Free self-hosted | Elastic License v2 |
I just need to send invoices and get paid, nothing else
→ SolidInvoice (from $9/mo or free self-hosted)
Purpose-built invoicing at the lowest price. No accounting complexity, no client caps.
I need accounting + invoicing in one tool
→ FreshBooks (freelancers) or QuickBooks (SMBs)
FreshBooks is cleaner and cheaper for service businesses. QuickBooks is the standard for businesses needing full accounting.
I want zero cost and can accept limitations
→ Wave (cloud) or SolidInvoice (self-hosted)
Wave is free cloud-based. SolidInvoice self-hosted is free with Docker, you own the data entirely.
I need truly open-source code I can audit and modify
→ SolidInvoice (MIT License)
MIT license, no restrictions, no commercial-use carve-outs. Full source code on GitHub.
I'm heavily invested in the Zoho ecosystem
→ Zoho Invoice or Zoho Books
Native Zoho integrations are a real advantage if you're already in the ecosystem.
SolidInvoice: free cloud plan plus paid plans from $9/mo, or self-host free. 14-day Pro trial on signup, no credit card.