EXECUTIVE SUMMARY
Outsourced payroll processing vendors and automated tax filing services frequently stack hidden per-employee surcharges, unearned wire fees, and redundant module add-ons, increasing payroll overhead by 10% to 18%. Payroll invoice reviews eliminate hidden costs.
Outsourced payroll vendors charge a base fee plus per-employee, per-run, and per-transaction surcharges. These surcharges are often added quietly as the vendor expands fees — per-employee processing, extra payruns, off-cycle checks, and wire or direct-deposit fees.
Automated tax filing adds redundant module fees for state, federal, and local filing, and wire fees are charged even when no wire was used. Because the invoice is large and line items are not scrutinized, these hidden charges accumulate into substantial payroll overhead.
Normalizing payroll expense means line-item review of every vendor invoice to strip hidden surcharges and redundant modules. The protocol verifies usage, removes unearned fees, and benchmarks the corrected structure against the market.
Verify per-employee, per-run, and off-cycle charges against actual payroll activity and active headcount.
Flag and remove wire and direct-deposit charges that were billed but never actually used or delivered.
Evaluate state, federal, and local filing add-ons and remove the modules that duplicate a bundled service.
Compare the right-sized payroll pricing against alternative providers to confirm competitive alignment.
A payroll processing and tax filing audit strips per-employee surcharges, unearned wire fees, and redundant modules — cutting up to 18% of payroll overhead. The first step is a confidential advisory conversation.