Claude to audit billing rates against contracts
Chartered accountant Nupur S. Babbar used Claude Cowork during an audit of a growing services company. The workbook connected vendor rosters, platform-recorded hours, invoiced hours, payments, client billing and costs. The goal was to understand mismatches and produce a report the founders could act on.
nupurbabbar.com
Suggested prompt
Suggested prompt written by Agents In Use, not the source author. Replace bracketed inputs and review tool permissions first.
Cross-check this accounting workbook for roster, hours, billing-rate and payment mismatches. Preserve evidence for each finding and separate data, process and control gaps.
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Sourced account- Source author
- Nupur S. Babbar
- Original account
- Read the source ↗
- Published
- Source link checked
- Reported result
- Billing-rate, vendor and hours mismatches organized into an audit report; published monetary amounts were anonymized.
- Human involvement
- Babbar independently checked the data and rewrote priorities and report structure.
A linked account supports attribution. It does not mean we independently reproduced its result.
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How the agent did it
- Provide the interconnected accounting workbook to Cowork.
- Run independent manual roster, duplicate and hours checks.
- Prioritize the findings and rewrite the leadership report.
Chartered accountant Nupur S. Babbar used Claude Cowork during an audit of a growing services company. The workbook connected vendor rosters, platform-recorded hours, invoiced hours, payments, client billing and costs. The goal was to understand mismatches and produce a report the founders could act on.
Cowork worked directly with the files while Babbar ran her own checks in parallel, including roster matching, duplicate detection and hours reconciliation. It flagged a vendor-count mismatch between the roster and payment ledger. It also identified repeated identical hours across months and a client being billed below the contracted rate. A broader difference between recorded work and billing affected the reliability of margin reporting.
The outputs organized findings by severity and separated data gaps, process gaps and control failures. But the draft was not ready for leadership: it repeated background and buried urgent findings. Babbar took over the prioritization, deciding what belonged at the start and what could move to an appendix.
The published names, numbers and identifying details were deliberately changed for confidentiality. Its monetary examples should therefore not be treated as verified loss or recovered revenue. The source says the process and nature of the findings are real. The copyable workflow is independent human reconciliation alongside cross-sheet agent analysis, followed by a human edit that makes the financial decisions clear.
Prompt
Suggested prompt (written by Agents In Use, not the author's)
Source: nupurbabbar.com · Nupur S. Babbar
Frequently asked questions
Were the published dollar amounts the client's actual figures?
No. The author explicitly changed numbers and identifying details for confidentiality.
What did the accountant check independently?
Roster matching, duplicates and hours reconciliation.
Why was the report rewritten?
Repeated context buried urgent findings and failed to prioritize the opening page.
More details
About this account
Cowork cross-referenced files and generated categorized audit findings.
Firsthand source opened and read. Suggested prompt written by us from the reported workflow; no original task prompt is quoted.
Credit: Nupur S. Babbar
Source published
Added to Agents In Use
Source checked
Tools and topics
Claude Cowork · Spreadsheets
Billing-rate audit · Contract reconciliation · Vendor records
Editorial completeness: 100/100. Measures documented fields, not agent performance or verified outcomes.