Your Friend in Billing

Quote it. Track it. Get paid.

Billing for shops that sell their people’s time. One ritual from priced scope to hours to invoice to paid — without gluing a time tracker, QuickBooks, and your inbox together by hand.

Join the waitlist See how it works

Works in the browser. Optional: drive it from the assistant you already use.

The BillPaisan invoice draft for Twin Lane Homeowners Association, September 2026: two labor lines, a fixed maintenance charge, and a seasonal plantings line awaiting an amount.

Or skip the clicks and just ask. Sherwin Landscaping, from their AI assistant:

What will the September invoice say?

BillPaisan · preview_invoice

The 21 hours plus common area maintenance at $1,200. Seasonal plantings still needs an amount — the draft is waiting in BillPaisan for you.

In your browser

The month is already written

Everything from the first logged hour to the payment arriving happens in BillPaisan itself, and all of it is running today.

Loghours in seconds, from a panel that remembers your recent client, project and taskDraftrecurring templates and unbilled time become a draft invoice you review — plus deposits, fixed fees and subcontractor bills at costSendissue it and send from your own domain and mail server, to the contacts you chooseTracka private page per invoice, no client login, and a count of how many times it was openedGet paidrecord payments in full or in part — or, with QuickBooks connected, they come back from thereSyncoptionally, issued invoices appear in QuickBooks with the same number

QuickBooks is optional. Connected, it is the one place payments are written; without it, BillPaisan never mentions QuickBooks at all.

Join the waitlist

Pricing

Priced by seat, not by invoice

A trial when billing opens — no forever-free full shop.

Solo$9.99per month

Shop$29.99per month, 5 seats

Extra seat+$5per month

EnterpriseCalllet’s talk

Indicative — subject to change before launch. No usage meters on invoices, projects, or revenue.

Full detail on the waitlist →

Built on MCP

Also works with the assistant you already use

MCP is the open standard AI assistants like Claude use to connect to other apps. BillPaisan gives yours twenty tools for your hours, clients and invoices, so you can ask in your own words. A few of the things people ask:

“Log two hours trimming at Amy’s Bird Sanctuary this morning.”

Recorded against the right client, project and task. Amy’s has two projects, so it asks which one instead of guessing.

“What haven’t I billed yet?”

Unbilled hours by client and project, with the value and how long each has been waiting.

“Here’s Ridgeline Tree Service’s bill. Re-bill it to Twin Lane at cost.”

It reads the PDF, drafts the invoice line by line, and refuses one already processed, like R-4471.

It drafts. You send.

Your assistant can prepare any invoice, but issuing and sending are not among its tools. Putting a document in front of a client is always a button a person presses.

It signs in as you.

Connecting is an ordinary sign-in, not an API key pasted into a settings file. Your assistant sees exactly what you can see in your account, and nothing of anyone else’s.

No chatbot inside.

There is no AI built into BillPaisan and we run none on your data. It works with Claude and other assistants that support MCP.

End the month-end chase.

Accounts open soon. Join the waitlist and we’ll email you the day they do.

Join the waitlist