Guide
A free Notion client tracker you can set up in five minutes
Three databases are enough
Clients, Projects and Invoices cover most solo work. Link each project to a client and each invoice to a client. Everything else can wait.
Three views to check
Active work: projects not yet delivered, grouped by stage. Waiting on client: anything stuck on a reply. Unpaid invoices: everything not marked Paid, with the due date.
Start free, add fields later
The free version has no trade-specific fields on purpose. If you bill by revision round, by word, or by usage rights, the paid versions add those.
General information, not tax or legal advice.