Invoicing + time tracking in one app

Freelance Invoicing Software

Most freelance invoicing software is just a form for typing numbers — you still track your hours somewhere else and copy them across by hand. Timebook tracks the time and sends the invoice, so your billable hours turn into a professional PDF in a couple of clicks. No separate billing tool, no re-typing, no forgotten hours.

  • Tracked hours become invoice line items automatically
  • Let your AI agent stage invoices — Timebook in the ChatGPT app store and over MCP for Claude
  • $29.99/mo for Pro — never per-seat
Send your first invoice free

14-day Pro trial · no credit card

Professional PDF invoices in a couple of clicks

Draft, preview, and email a polished PDF invoice with your own payment instructions — bank details, PayPal, whatever you use. No template wrangling in a word processor, no exporting to a separate billing app. The invoice your client receives looks like it came from a business, because it did.

Tracked hours become invoice line items

Most freelance invoicing software makes you re-type your hours from wherever you tracked them. Timebook tracks the time too, so billable hours flow straight onto the invoice. Bill exactly what you worked — no rounding from memory, no forgotten sessions, no copy-paste between two apps.

Know who has paid and who has not

Every invoice carries a status — draft, sent, paid — so you can see at a glance what is outstanding. Connect your bank via Plaid and paid invoices reconcile against the money that actually landed. Chasing late payment starts with knowing it is late.

Built for AI agents

Let your AI agent prep the invoice

Timebook is in the ChatGPT app store and speaks MCP, so ChatGPT, Claude, or any AI agent can pull your tracked hours together and stage an invoice for you to send. Tell your agent "invoice Acme for last week" and review the draft.

Invoicing and bookkeeping, one app

When a client pays, the income is already in your books — because the invoicing tool and the bookkeeping tool are the same tool. No exporting to accounting software, no reconciling two systems at tax time. Invoicing, time tracking, and bookkeeping live in one app — free to start, $29.99/mo for Pro.

Why freelancers invoice with Timebook

Frequently asked questions

What is the best freelance invoicing software?

The best freelance invoicing software for a one-person business is one that also tracks your time, so your hours become invoice line items without re-typing. Timebook does exactly that — invoicing, time tracking, and bookkeeping in a single app for $29.99/month for Pro.

Can I turn tracked hours into an invoice?

Yes. Timebook tracks your billable time and your tracked hours flow directly onto a professional PDF invoice, so you bill exactly what you worked instead of re-typing hours from a separate timer.

Can I see which invoices have been paid?

Yes. Every invoice has a draft, sent, or paid status, and if you connect your bank via Plaid, paid invoices reconcile against the deposits that actually landed.

Can my AI assistant create invoices for me?

Yes. Timebook is in the ChatGPT app store and exposes an MCP server, so ChatGPT, Claude, and other AI agents can gather your tracked hours and stage an invoice for you to review and send.

How much does Timebook cost?

$29.99/month for Pro, including invoicing, time tracking, and bookkeeping. There's a 14-day Pro trial with no card required.

Freelance Invoicing Software — Timebook