How to calculate automation ROI
Automation ROI is the value of the time a tool saves, minus what the tool costs, divided by that cost. Enter the monthly cost of the tool, the one-time setup cost, the hours it saves a month, the hourly cost of that work and the years to count. It works for workflow software, AI tools and agents, robotic process automation (RPA) and accounts payable automation alike.
In the example, a $500 a month tool with $1,000 of setup saves 40 hours a month of work that costs $35 an hour. We assume 75% of the saved time goes to useful work and that it takes 2 months to get up to speed. Over 3 years the saved time is worth $37,275 against $19,000 in costs: a net gain of $18,275 and a 96% ROI. It pays for itself in month 3 and frees about 360 hours a year.
We also ask what share of saved time goes to use. Hours saved only pay if people spend them on work that matters, or if you avoid a hire. At 100% the example returns 162%. At 50% it returns 31%. Set it under More options, along with how long it takes to get up to speed. A 6-month ramp lowers ROI from 96% to 85%.
Use the full hourly cost of the work: wages plus payroll taxes and benefits, often 20% to 40% on top of pay. Measure hours saved by timing the task before and after on a sample, not by the vendor's estimate. If the tool saves 10 hours a month instead of 40, the example loses $9,681 over 3 years. Results are estimates to plan with.