I've now helped six small businesses migrate payroll platforms. Three of those migrations were avoidable. Here's the pattern that causes unnecessary payroll switches — and how to choose correctly the first time.
Migration #1: Gusto to ADP (Mistake)
A 28-person professional services firm moved from Gusto to ADP Run because a new CFO came from a large company where ADP was standard. The implementation took four months. The team hated the interface. They moved back to Gusto eighteen months later.
Lesson: Don't let enterprise software assumptions drive SMB decisions.
Migration #2: Paychex to OnPay (Good Call)
A 40-person manufacturing company was paying $18,000 per year for Paychex Flex. A benefits broker mentioned OnPay as an alternative. They switched. Current cost: $6,200 per year for identical functionality, plus a UI the HR coordinator actually uses without calling support.
OnPay's strength is its transparent pricing and genuinely responsive support. For a detailed look, this review of the best HR and payroll software for small businesses covers the top options with honest comparisons.
Migration #3: Rippling to Gusto (Lateral Move)
A 55-person tech company found Rippling's HR and IT automation too complex for their actual needs. The feature breadth became maintenance overhead. They moved to Gusto for simplicity.
Lesson: Don't buy capability you won't use.
The Framework That Actually Works
Before choosing payroll software: count states, list benefits you administer, identify your accounting software, and check whether HR self-service matters to your team. Those four criteria narrow the field faster than any feature comparison chart.
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