AI for business operations: 41 real cases with prompts

Michel, in San Diego, works in a tight-margin business with basic back-office software, and sending late-invoice reminders was repetitive manual work. Claude Cowork walked them through setting up an agent that logs in every Monday night, checks overdue accounts receivable and matches customer names against a Google Sheet of contacts. Using Michel's email template, it adds the contact name, invoice number, amount and due date, puts the emails in the Drafts folder and sends Michel a report of which customers were included, what each owes and the totals. Michel reviews the drafts and sends them, saving about an hour every Monday night.

Claude Cowork · Ops · Source date: Oct 13, 2026

jedberg regularly negotiates OEM agreements with vendors that mostly use the same template and draw the same objections. They tried Claude first, and their lawyer was impressed that it found things the lawyer had missed. jedberg then used Claude to redline that type of contract, and the other side remarked that the lawyer had been surprisingly thorough. The lawyer did the final check and by then basically said it looked good, and jedberg saved a lot of money by doing the first three rounds with Claude.

Claude · Ops · Source date: Oct 12, 2026

badlibrarian runs a business and sometimes buys things on Amazon. At tax time they used to search for the big business items and categorise them in QuickBooks Online until they gave up, using a janky browser plugin and two monitors full of Excel windows. Now Claude does it and doesn't give up, despite QuickBooks being slow. It will even click 19 times to split a transaction because they'd put a router and shampoo in the same Amazon cart one night in February 2025.

Claude · Ops · Source date: Oct 11, 2026

idopmstuff runs several small consumer brands. For the most recent one they acquired, customers got in touch through Facebook and Instagram comments and messages as well as email, so they had Claude build an app that pulls those messages in as they arrive and drafts a reply, including any actions needed, for them to edit or send. Their edits feed back into its playbook, and it has got pretty good. It handles warranty claims (ask for a photo of the damage and the order number, create a replacement order, email a confirmation) and most common questions. Every reply is still approved by a human, though they plan to let it handle common cases on its own soon.

Claude · Ops · Source date: Sep 16, 2026

mattmaroon runs a seasonal business and noticed their state unemployment insurance rate had jumped from 0.75% to 12.75%. Instead of hours on the state website and on hold, they asked ChatGPT what had happened. It worked out that they were being charged a penalty rate because their new payroll provider doesn't file wage reports for the one quarter with no wages, and without a report the business counted as delinquent. ChatGPT filed the correct wage report and went to the support site to request a retroactive rewrite, which was granted, saving many thousands of dollars without hitting the 5-hour usage limit.

ChatGPT · Ops · Source date: Aug 27, 2026

Sridhar Katakam used Claude Cowork to go through the statements and transactions from several bank accounts, Stripe, PayPal and Wise and prepare business expense and income spreadsheets. Their accountant reviewed them and said they were good enough that Katakam no longer needed the accountant's services for BAS and could file it themselves, a saving of about $530 AUD per quarter. The accountant also suggested having Claude do the same for the whole year, and said the fee for filing the income tax return would come down.

Claude Cowork · Ops · Source date: Aug 10, 2026

mikeocool asked Claude about converting their LLC to an S Corp. Claude said it was a great idea and estimated how much they would save in taxes. Their accountant said it would actually cost more, because of how New York City taxes S Corps. They hadn't told Claude they lived in NYC, because it didn't occur to them that it mattered. Their takeaway: tax questions are full of details like this, often subtler than where you live.

Claude · Ops · Source date: Aug 2, 2026

A client called Alper Ortac on a family holiday at Europa Park needing an invoice urgently for their end-of-year accounts. With no laptop, Ortac opened Claude on their phone in a roller coaster queue, attached the last invoice and asked it to recreate it. Claude wrote and ran a Python script that produced a replica of the PDF, then changed the invoice number, billing period and costs as asked. Ortac drafted the email, attached the new invoice and sent it in roughly 20 minutes, right before boarding.

Claude · Ops · Source date: Jul 8, 2026

Pete Hickerton, chair of their school's PTA, wanted to save the treasurer an evening on the year-end accounts. The job meant exporting bank transactions, categorising everything, reconciling and formatting it for the Charity Commission. They gave the bank exports to Claude, and four minutes later had a set of accounts ready to upload. Claude explained what it had done, flagged where it had checked the formulas and showed the reconciliation. Hickerton and the treasurer went through it looking for errors and found none.

Claude · Ops · Source date: Jun 11, 2026

John Fong had a box of receipts that had sat on their desk for 1.5 years, some crumpled, some with faded ink, and some restaurant meals split across two receipts with the tip on its own. They started a Claude Cowork project called AP Agent, photographed 63 receipts into a folder and asked for an Excel sheet they could batch upload to QuickBooks. They took a shower and 8 minutes later came back to a completed file with every receipt allocated to an account and amount. It flagged 3 receipts it had only partly read, asking them to check those, and 3 that weren't valid expenses under CRA (Canada Revenue Agency) rules.

Claude Cowork · Ops · Source date: Jun 10, 2026