Fee Auditor

This tool analyzes Stripe Balance Transaction CSV exports to calculate the real effective processing rate and all-in cost, revealing how refunds, international payments, and other factors inflate fees beyond the advertised 2.9%. It is designed for founders, fractional CFOs, and finance teams at small to mid-sized businesses that use Stripe for payments. The tool differentiates itself by requiring no OAuth connection or API keys, processing data locally in memory, and providing a deterministic, non-LLM-based audit report with actionable insights.

Key features

• Upload Stripe Balance CSV
• Calculate effective processing rate
• Calculate all-in cost rate
• Identify high-fee charges
• Show monthly fee trends
• Estimate directional savings
• Export report as CSV or print
• No OAuth or API keys required
• Raw CSV not stored
• Deterministic analysis, not LLM