Wave is a free accounting and invoicing tool that's genuinely useful for small businesses watching their overhead. It handles invoicing, expense tracking, and basic financial reporting at no cost. For a music teacher just starting out, it's a reasonable way to get paid without spending money on software. But as your school grows, free invoicing becomes the most expensive tool in your stack.
What Wave Does Well
Wave provides free invoicing, basic accounting, and payment processing for small businesses. The interface is clean and the price is hard to argue with. For tracking income and expenses, it covers the basics.
The Manual Billing Problem
Wave invoices don't send themselves. You create them, send them, track who paid, and follow up on who didn't — manually, every billing cycle. For a school with 50 students, that's 50 invoices to manage every month. For 100 students, it's 100. The time cost of manual billing at scale far exceeds what automated billing software costs.
ZiroWork Billing Runs Itself
ZiroWork's Bub billing agent handles recurring charges, sends invoices automatically, processes payments, and follows up on overdue accounts without you touching any of it. You set it up once. It runs every month. The time you save pays for ZiroWork many times over.