Invoicing in one pass: Claude drafts invoices, logs them in Google Sheets, and prepares client emails

Shubham Sharma India · 1H AGO

My wife came up with this workflow, and I recently copied it for my own invoicing. It turns a finished project into an invoice, a bookkeeping entry, and a drafted client email in one pass. It suits anyone who bills several clients and sends records to an accountant. 1. She keeps a log of each client's billing details and email address, along with the details of her own entity. Claude uses this log and data in a project. 2. When a client project is done, she tells Claude the client's name, the work completed, and the amount due. 3. Claude pulls the rest from the log and prepares the invoice in the format she defined, using a sample given at the start. It adds the relevant line items and assigns the next invoice number. 4. Once the invoice is ready, Claude adds a row to the Google Sheet our CA uses. The row includes the date, client, invoice number, amount, and the invoice file. The file is also saved in a separate Google Drive folder, so the books stay current as I work. 5. Once logging is done, Claude drafts a brief standard email in Gmail to the client with the invoice attached. 6. She sits in the final layer, reading everything, checking the invoices, and changing the wording if needed before hitting send. Invoicing, logging it for accounting, and sending emails used to be four small jobs in four places. Now it is one message to Claude and one review. It saves a lot of time and helps make sure invoices always go out on time.