How to Calculate HR Software ROI
ROI (Return on Investment) measures whether the cost of a new system is justified by the value it delivers. For HR software, savings come from four sources:
1. Admin Time Savings
Manual HR processes — running payroll, managing leave requests, onboarding new hires with paper forms — consume a large share of HR staff time. Cloud HR software automates these workflows, freeing up time for strategic activities.
Time Savings = (HR Staff × Admin Hours/Week × 52 weeks) × your admin-time-reduction assumption
Value = Time Saved (hrs) × Hourly HR Rate
2. Payroll Error Reduction
Manual payroll is error-prone. An Ernst & Young survey reported in December 2022 found errors in one in five US payrolls, at an average correction cost of $291 each. How much automation reduces that depends on which step was going wrong.
Error Savings = Annual Error Cost × your payroll-error-reduction assumption
3. Improved Retention
Better HR tools correlate with higher employee satisfaction and retention. Even a small improvement in turnover on a 50-person team saves meaningful recruitment and onboarding cost, because replacing an employee carries both direct hiring spend and lost productivity.
Turnover Savings = Employees × (Turnover% × 5% improvement) × (Avg Salary × 50%)
4. Net ROI Formula
Gross Savings = Time Value + Error Savings + Turnover Savings
Net Savings = Gross Savings − HRMZY Annual Cost
ROI % = (Net Savings ÷ HRMZY Cost) × 100