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Financial Document Parser

financeautomationdata-extractionocraccounting
β˜… 4.5 (99)⭐ 187πŸ“„ MITπŸ•’ 2026-06-08Source β†—

Install this skill

npx skills add OneWave-AI/claude-skills

Works across Claude Code, Cursor, Codex, Copilot & Antigravity

What this skill does

  • β€’Automatic extraction of line items, totals, and metadata from financial PDFs and images
  • β€’Categorization of expenses into standard labels like software, travel, or utilities
  • β€’Identification of subscription patterns and recurring charges
  • β€’Detection of potential duplicate entries and high-value anomalies
  • β€’Generation of structured summaries and CSV-exportable tables

When to use it

  • βœ“Converting a stack of receipt images into a monthly expense report
  • βœ“Reconciling bank statement transactions against internal project budgets
  • βœ“Analyzing recurring vendor charges to identify redundant subscriptions
  • βœ“Extracting invoice details to prepare data for accounting software imports

When not to use it

  • βœ•Processing highly sensitive legal contracts that require human legal review
  • βœ•Generating tax filings or official financial statements for regulatory compliance
  • βœ•Scanning documents with extremely low resolution or handwritten text that is illegible

How to invoke it

Example prompts that trigger this skill:

  • β€œParse this invoice PDF and give me a CSV of the line items.”
  • β€œCategorize all transactions in this bank statement.”
  • β€œExtract the merchant name, date, and total from these receipt images.”
  • β€œCheck these invoices for any duplicate charges.”
  • β€œGenerate an expense report summary from these document uploads.”

Example workflow

  1. User uploads a set of receipts or invoices to the agent context.
  2. The agent scans the document types and extracts merchant, date, and itemized data.
  3. The agent categorizes each transaction based on standard accounting labels.
  4. The agent detects recurring payments and flags any potential duplicate charges.
  5. The agent compiles a summary table and generates a formatted CSV string for user export.

Pitfalls & limitations

  • !Performance depends entirely on the clarity and resolution of the input document.
  • !Requires manual verification for high-value transactions to ensure data integrity.
  • !Does not replace professional accounting advice or official tax software.

FAQ

What document formats are supported?
The parser works with common image formats and standard PDF documents containing financial data.
Does it handle foreign currencies?
Yes, it tracks currency symbols and formats, providing a space for exchange rate notes if relevant.
How does it handle sensitive information?
The skill includes best practices for masking account numbers and protecting sensitive financial details during processing.
Can it export to formats other than CSV?
While CSV is the primary output for data portability, it produces structured markdown summaries that are easily converted to other formats.

How it compares

Generic prompts often fail to maintain consistency across different document layouts, whereas this skill applies a rigid, schema-based extraction process specifically tuned for financial data.

Source & trust

⭐ 187 starsπŸ“„ MITπŸ•’ Updated 2026-06-08πŸ›‘ no risky patterns found

From the source: β€œ# Financial Document Parser Extract structured data from financial documents with automatic categorization and analysis. ## When to Use This Skill Activate when the user: - Provides invoices, receipts, or bank statements - Asks to "parse this invoice" or "extract data from this receipt" - Needs expe…”

View the full SKILL.md source

# Financial Document Parser

Extract structured data from financial documents with automatic categorization and analysis.

## When to Use This Skill

Activate when the user:
- Provides invoices, receipts, or bank statements
- Asks to "parse this invoice" or "extract data from this receipt"
- Needs expense categorization
- Wants to track spending patterns
- Asks to generate expense reports
- Mentions financial document analysis
- Provides PDF or image of financial documents

## Instructions

1. **Identify Document Type**
   - Invoice (business to business)
   - Receipt (point of sale)
   - Bank statement
   - Credit card statement
   - Expense report
   - Tax document

2. **Extract Core Information**

   **For Invoices:**
   - Invoice number
   - Invoice date and due date
   - Vendor/supplier name and contact
   - Client/recipient name
   - Line items (description, quantity, unit price, total)
   - Subtotal, tax, and grand total
   - Payment terms
   - Payment methods accepted

   **For Receipts:**
   - Merchant name and location
   - Date and time
   - Items purchased
   - Individual prices
   - Subtotal, tax, total
   - Payment method
   - Last 4 digits of card (if present)

   **For Bank/Credit Card Statements:**
   - Statement period
   - Account number (last 4 digits)
   - All transactions (date, description, amount, balance)
   - Beginning and ending balance
   - Total credits and debits
   - Fees or interest charges

3. **Categorize Expenses**
   - Business expenses: Office supplies, software, equipment
   - Travel: Transportation, lodging, meals
   - Utilities: Internet, phone, electricity
   - Professional services: Legal, accounting, consulting
   - Marketing: Advertising, subscriptions
   - Entertainment: Client meals, events
   - Other: Miscellaneous

4. **Identify Patterns**
   - Recurring charges (subscriptions)
   - Duplicate charges
   - Unusual or high-value transactions
   - Tax-deductible expenses
   - Foreign currency transactions

5. **Generate Structured Output**
   - Create CSV-ready format
   - Summarize totals by category
   - Flag items needing attention
   - Calculate tax implications (if relevant)

## Output Format

```markdown
# Financial Document Analysis

## Document Details
- **Type**: Invoice / Receipt / Statement
- **Date**: [Date]
- **Vendor/Merchant**: [Name]
- **Document Number**: [Number]
- **Total Amount**: $X,XXX.XX

## Line Items
| Description | Quantity | Unit Price | Total |
|-------------|----------|------------|-------|
| [Item] | X | $XX.XX | $XX.XX |

## Financial Summary
- **Subtotal**: $X,XXX.XX
- **Tax**: $XXX.XX
- **Total**: $X,XXX.XX
- **Payment Method**: [Method]

## Expense Categorization
| Category | Amount | Items |
|----------|--------|-------|
| Software | $XXX | Slack, GitHub |
| Office | $XX | Supplies |

## Insights
- Tax-deductible business expenses: $X,XXX
- Recurring charges detected: 3 subscriptions ($XXX/month)
- Foreign transaction fees: $XX

## Flagged Items
- [ ] Large expense ($X,XXX) - verify approval
- [ ] Duplicate charge detected on [date]

## Export Data (CSV Format)
```csv
Date,Vendor,Description,Category,Amount,Tax Deductible
2025-01-15,Adobe,Creative Cloud,Software,52.99,Yes
```

## Recommendations
- Track recurring $XXX/month for [subscription]
- Consider negotiating bulk discount with [vendor]
- Set up payment reminder for [invoice due date]
```

## Examples

**User**: "Extract data from this invoice PDF"
**Response**: Parse PDF β†’ Extract vendor info, line items, totals β†’ Categorize as business expense β†’ Format as structured data β†’ Generate CSV export

**User**: "Analyze my bank statement and categorize expenses"
**Response**: Extract all transactions β†’ Categorize each (dining, software, travel) β†’ Identify recurring charges β†’ Calculate totals by category β†’ Flag unusual transactions β†’ Generate spending report

**User**: "Parse these 10 receipts and create an expense report"
**Response**: Process each receipt β†’ Extract merchant, date, amount, items β†’ Categorize expenses β†’ Calculate totals β†’ Generate consolidated report β†’ Create CSV for expense submission

## Best Practices

- Preserve exact amounts (don't round)
- Maintain currency symbols and formats
- Note when data is unclear or illegible
- Flag suspicious or duplicate transactions
- Provide tax-relevant categorization
- Use standard expense categories
- Generate export-ready formats (CSV, JSON)
- Protect sensitive info (mask account numbers)
- Identify missing information (no date, unclear vendor)
- Calculate totals and verify against document
- Note discrepancies or calculation errors
- Include exchange rates for foreign currency

Quoted from OneWave-AI/claude-skills for reference β€” see the original for the authoritative, latest version.

πŸ“„ Full skill instructions β€” original source: OneWave-AI/claude-skills
Financial Document Parser transforms raw images and PDFs of fiscal documents into structured, machine-readable data. It extracts essential fields from invoices, bank statements, and receipts, while automating the categorization of spending. For developers and business owners, this tool eliminates manual data entry and human error by parsing line items, totals, and vendor details into clean formats like CSV. Beyond simple extraction, it identifies recurring charges, potential duplicate transactions, and tax-deductible items. This skill assists in maintaining organized expense reports and clear financial oversight without requiring complex OCR software or dedicated accounting suites. By normalizing data from various sources, it creates a consistent foundation for financial analysis, tax preparation, or budget management.

How to Use This Skill Unit

Option A: Project-Specific (Recommended)

  1. Click "Download" above
  2. In your project, create the directory: .agent/skills/financial-parser/
  3. Save the file as SKILL.md
  4. The agent will automatically discover the skill based on its description.

Option B: Global Installation (All Agents)

Save the file to these locations to make it available across all projects:

  • Claude Code: ~/.claude/skills/OneWave-AI/claude-skills/financial-parser/SKILL.md
  • Cursor: ~/.cursor/skills/OneWave-AI/claude-skills/financial-parser/SKILL.md
  • Antigravity: ~/.gemini/antigravity/skills/OneWave-AI/claude-skills/financial-parser/SKILL.md

πŸš€ Install with CLI:
npx skills add OneWave-AI/claude-skills

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Complete Guide

How to use this Skill in Claude Code & Cursor

For Claude Code (CLI)

To use this skill in Claude Code, copy the rule content into your project's custom instructions or follow our Add-Skill CLI guide. This ensures Claude follows your standards during every code generation.

For Cursor & Windsurf

For Cursor or Windsurf, individual skills are best used in the "Rules for AI" section. This specific unit helps the agent avoid documents issues, leading to cleaner, more efficient code.

Why the skill format matters: the standardized Agent Skills format lets your AI agent load detailed instructions only when they are relevant, keeping your prompt clean while improving results.

Source & attribution

This skill is categorized under Documents and is published by OneWave-AI, maintained in OneWave-AI/claude-skills.

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