SaaSMon vs Wave
Wave offers accounting and invoicing for small businesses and freelancers, with paid add-ons such as payment processing and payroll in some countries. SaaSMon is narrower and SaaS-specific: per-product income and expenses, recurring costs, KPI reports and a runway estimate.
At a glance
| Aspect | SaaSMon | Wave |
|---|---|---|
| Built for | Indie founders running SaaS products | Small businesses and freelancers |
| Accounting model | Simple income and expense ledger | Double-entry accounting |
| Invoicing customers | No | Core feature |
| SaaS metrics (MRR, ARR, churn) | Built in | Not the focus |
| Runway forecast | Built in | Not the focus |
| Per-product view | Every transaction belongs to a project | Not the focus |
Wave is described in general terms as of November 2026. Check their site for current features and pricing.
Where they differ
Invoices versus subscriptions
Wave is shaped around a business that sends invoices and records what clients pay. SaaS revenue usually arrives as many small subscriptions through a billing provider, and the useful questions are about MRR, churn and runway, which is what SaaSMon reports on.
Several products
SaaSMon treats each product as a project with its own totals, budgets and KPIs, plus a portfolio view across all of them.
Accounting depth
Wave produces accounting reports such as balance sheets. SaaSMon does not attempt a general ledger. If you need real books for tax, use accounting software or an accountant.
Choose SaaSMon if
- Built around SaaS products, not client invoices.
- MRR, ARR, burn, CAC, LTV and churn reports.
- Recurring costs posted automatically on schedule.
- Portfolio overview across every project.
Choose Wave if
- You invoice clients for services or consulting work.
- You want free double-entry bookkeeping for a single small business.
- You need accounting reports like a balance sheet.
Using both
If you also do client work, Wave can handle invoicing and the books while SaaSMon tracks your SaaS products. Keep the consulting income out of your SaaS projects so product margins stay honest.
Related guides
Other comparisons
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