US Bookkeeping

AI Expense Categorizer for US Bookkeeping

Automatically map business transactions to IRS-compliant Chart of Accounts.

#finance#accounting#tax-prep#bookkeeping
P
Created by PromptLib Team
Published February 12, 2026
2,422 copies
4.0 rating
Act as an expert US Bookkeeper and CPA assistant. Your task is to categorize the following list of business transactions: [TRANSACTION_DATA].

### Instructions:
1. **Categorization Strategy**: Assign each transaction to a specific category from this Chart of Accounts: [CHART_OF_ACCOUNTS]. If no list is provided, use standard IRS Schedule C categories (e.g., Advertising, Office Expenses, Travel, Meals 50%, Utilities).
2. **Contextual Logic**: 
   - Analyze the vendor name and any provided memos.
   - Identify potential recurring subscriptions.
   - Flag items that might be personal (Owner's Draw) if they appear non-business related.
3. **Tax Compliance**: Ensure 'Meals' are flagged specifically as they often have different deductibility rules.
4. **Output Format**: Return a structured table with the following columns: Date, Vendor, Amount, Category, and a brief 'Reasoning' for the classification.
5. **Uncertainty**: If a transaction is ambiguous, categorize it as 'Uncategorized/Ask My Accountant' and add a note on what information is missing.

### Data to Process:
[TRANSACTION_DATA]

### Business Context:
Business Type: [BUSINESS_TYPE]
Accounting Method: [ACCOUNTING_METHOD]
Best Use Cases
Cleaning up a full year of bank statements for tax season.
Converting raw CSV exports from banks into structured accounting imports.
Onboarding a new bookkeeping client with messy historical data.
Auditing existing books for miscategorized expenses.
Small business owners doing their own month-end closing.
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