Gusto vs OnPay

Both Gusto and OnPay sit in AI Payroll Tools, and firms regularly shortlist them together. They are not interchangeable: Gusto is aimed at us small business payroll, while OnPay is built for us small businesses. Gusto does not publish a public price, and OnPay does not publish a public price.

Choose Gusto if

• You need us small business payroll
• Strong accountant partner programme
• Handles multi-state filing well

Choose OnPay if

• You need us small businesses
• Transparent flat pricing
• All filings included

What to watch either way

• Gusto: US only
• OnPay: US only

Testing them

Gusto has no free tier, so testing needs budget approval first, and OnPay has no free tier, so testing needs budget approval first. Whichever you trial, run it on your messiest real documents rather than a clean demo file — that is where the difference between these two actually shows up.