AI agents for finance: 13 real examples
Agentic Feats lists 13 sourced examples of AI agents in finance work; 7 link the artifact; most common agent: Claude Code (7). Newest first.
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- Oct 14
Agents used here9
Industries here3
Codex caught real errors, including a wrong Schedule L field mapping, and the author found their own 2025 mistakes.
S-Corp taxes with two agents
Claude Code wrote Python scripts that compute the author's S-Corp tax forms from QuickBooks and bank data, while Codex reviewed the code.
The author's overdue Q3 2025 German VAT statements were filed in one day, with a recorded video of the submission.
German VAT filing
Claude Cowork prepared quarterly accounts from invoice PDFs, then Claude in Chrome filled and submitted the German VAT forms in Elster.
Documind extracts invoice data in under four seconds; a 130-invoice demo caught four anomalies, including an $875 duplicate and a 60% vendor price increase.
Invoice processing app on Replit
The author built Documind, an invoice platform, on Replit by prompting Claude, with extraction, anomaly detection, workflows, and plain-English queries.
The organizer was filled in with no errors found on review, and Claude flagged a missed brand-acquisition depreciation deduction the CPA had not filed for.
Tax organizer and return review
Claude in Chrome and Claude Code filled a web-only tax organizer, then Claude Code reviewed last year's return for errors.
The author says it saved 6-8 hours and produced the most organized package they had given their accountant, including a discrepancy checklist.
Bookkeeping and tax prep
Claude Cowork organized the author's tax documents, built a bookkeeping spreadsheet, and prepared a tax summary and an accountant briefing.
The author says 200 invoices were processed in four minutes with zero errors, replacing a Friday afternoon and a $300 Upwork job.
Invoice PDFs to spreadsheet
Claude Code scanned 200 mixed-format PDF invoices, extracted client, amount, currency and date, renamed and sorted the files, and exported a summary spreadsheet.
A full equity research workflow on Adyen, from data pull to investment memo, was done in under 15 minutes using prompts only.
Adyen equity research in Cowork
Claude Cowork pulled Adyen filings and data, built an Excel model, ran a DCF, wrote an investment memo, and set up a weekly update task.
Setup took about 6 to 8 hours of active work and cut routine month-end bookkeeping by an estimated 85 to 90 percent.
SaaS accounting automation
Hermes Agent, connected to Zoho Books, Gmail, Aspire Bank, Stripe and Telegram, ran bookkeeping for the author's Singapore SaaS company.
It reconciled 200 transactions with 11 miscategorized, a 94.5% hit rate; the author's review covered only the 18 flagged rows plus spot-checks.
Monthly bookkeeping reconciliation
Claude Code built a bookkeeping pipeline that pulled a month of transactions over MCP, matched receipts, drafted categories, and flagged uncertain rows.
The operator reports +19.04% versus +12.24% for the S&P 500 from March 3 to August 4, 2026, with $27 million copying the trades.
Claude-assisted stock portfolio
A Claude Code agent on Opus 4.6 researched positions for a $50,000 real-money account under human-set risk rules, aiming to beat the S&P 500.
A test run processed 40 PDFs, created the QuickBooks records, attached the PDFs, and cleaned up automatically, cutting hours to minutes.
QuickBooks vendor invoice automation
Claude Code upgraded the author's existing QuickBooks Online integration to attach original PDFs, self-update the item list, clean up files, and skip duplicate invoices.
About 1,570 entries posted in Claude Code alone, and Codex caught a VAT return error days before filing.
AI bookkeeping for Swedish companies
Claude Code and Codex kept the books for several Swedish limited companies over ten weeks, handling receipts, VAT, bank matching and posting.
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