Find the money
hiding in your clients' bills.
Subscription creep, merchant fee overcharges, and vendor billing errors cost businesses thousands annually. Warnvo gives CPAs a systematic way to find and recover that money.
What you're dealing with every day
The billing fraud and overcharge patterns that cost your clients money — and your practice time.
SaaS subscription creep
Unused software seats, duplicate subscriptions, and auto-renewed annual plans that should have been cancelled cost businesses $1,200–$4,000/year on average.
Merchant processing abuse
Processors routinely charge above the contracted interchange-plus rate — often unnoticed because statements are complex and rates change frequently.
Bank fee overcharges
Wire fees, ACH fees, and account maintenance fees that exceed the fee schedule disclosed at account opening — a common compliance violation.
Vendor invoice errors
Duplicate invoices, quantity discrepancies, and price-per-unit errors that slip through accounts payable without a systematic review.
Payroll processor overcharges
Per-employee fees, year-end processing fees, and tax filing fees that exceed the contracted rate — often buried in complex statements.
Expense report fraud
Employee expense reports with inflated mileage, duplicate receipts, and personal expenses submitted as business expenses.
Built for your workflow
Tools designed specifically for professionals who deal with billing disputes and consumer protection every day.
Systematic bill audit
ShieldEngine™ analyzes vendor invoices, bank statements, and subscription charges against contracted rates and market benchmarks.
Vendor dispute letters
Generate formal dispute letters for each overcharge, citing the specific contract terms, fee schedules, and applicable regulations.
Audit report generation
Export a complete audit report showing all flagged charges, dispute letters, and recovery amounts — ready to present to clients.
Frequently Asked Questions
Start protecting your clients today
Free for individual consumers. Pro Business starts at $99/month.
No credit card required. Cancel anytime.
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