Claude Cowork reconciles bank records and invoices
Cupareanu reports Cowork producing a reconciliation workbook, consistently renamed invoices and flags for transactions whose invoices she had not supplied.
Suggested prompt
Suggested prompt written by Agents In Use, not the source author. Replace bracketed inputs and review tool permissions first.
Reconcile this bank statement with the supplied invoices. Normalize vendor labels, show source references for each match, keep ambiguous items separate, flag missing invoices and return an Excel workbook for my accountant’s review.
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See placements →Evidence at a glance
Sourced account- Source author
- Daria Cupareanu
- Original account
- Read the source ↗
- Published
- 12 Feb 2026
- Source link checked
- 15 Oct 2026
- Reported result
- Cupareanu reports Cowork producing a reconciliation workbook, consistently renamed invoices and flags for transactions whose invoices she had not supplied.
- Human involvement
- Cupareanu reviews the result and prepares it for her accountant. Private underlying financial records are not published for independent verification.
A linked account supports attribution. It does not mean we independently reproduced its result.
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How the agent did it
- Provide a bank statement and a partial invoice set in a local folder.
- Normalize vendors, categorize expenses and match invoices with bank transactions.
- Flag unmatched transactions, generate an Excel reconciliation and rename invoice files.
Daria Cupareanu tested Claude Cowork on the monthly preparation she normally performs for her accountant. She supplied a bank statement and only some of the corresponding invoices in a local folder, then asked for a complete reconciliation. The supplied invoice set was partial; the account does not explain why the other documents were absent.
Cowork cleaned up vendor names, categorized expenses, matched the supplied documents with transactions and marked the records without invoices. It also generated a formatted Excel workbook and renamed the invoice files consistently. Cupareanu reports that the extraction and missing-document identification were correct in her review.
The source provides a concrete firsthand outcome but withholds the private financial material and a recording of this run. That limits independent checking of the categories, matches and totals. It also does not establish that all unmatched items were errors or that the work constituted audited accounts. The useful result is a structured reconciliation package and a visible list of documents still needed. The author retains the accountant handoff and her own assessment of correctness rather than delegating final financial responsibility to the agent.
Prompt
Suggested prompt (written by Agents In Use, not the author's)
Source: Blog · Daria Cupareanu
Frequently asked questions
What happened to invoices not supplied?
The agent marked the corresponding transactions as missing documentation.
Which artifact was produced?
A formatted Excel reconciliation, alongside consistently renamed invoice files.
Can the reported matches be independently checked?
The author does not publish the private records or a recording of this run.
More details
About this account
Cowork read the bank and invoice files, matched available records and produced a reconciliation workbook with unresolved items.
Firsthand account read. Primary Substack article visibly dated Feb 12, 2026. Private financial inputs and matching results are author-verified, not independently audited. Reported outcomes were not independently reproduced. Suggested prompt written by Agents In Use.
Credit: Daria Cupareanu
Source published 12 Feb 2026
Source checked 15 Oct 2026
Tools and topics
Claude Cowork · Bank statement · Invoice PDFs · Excel
Claude Cowork · Bank statement · Invoice PDFs
Editorial completeness: 100/100. Measures documented fields, not agent performance or verified outcomes.