Wave

Wave proves that professional invoicing doesn't require a subscription. The platform's core invoicing and accounting features are genuinely free forever—no trial period, no upsell trap. You can send unlimited invoices, track expenses, manage customers, and reconcile bank transactions without paying a dime. Wave is ideal for freelancers, consultants, and service-based solopreneurs who want to avoid subscription bloat while handling straightforward invoicing workflows.\n\nThe free tier includes recurring invoices, payment reminders, multi-currency support, and mobile access. Wave monetizes through optional premium services (payroll, payment processing) but doesn't nickel-and-dime you for core features. For indie hackers bootstrapping on a tight budget, Wave eliminates a fixed cost line item and lets you scale payments as revenue grows.