Justworks

Justworks is a PEO (Professional Employer Organization) platform that bundles payroll, benefits, compliance, and HR administration for small businesses. As a PEO, it co-employs workers alongside the client business, which enables access to enterprise-level benefits — health insurance, 401(k), dental, vision, commuter benefits — at group rates that small businesses cannot typically access on their own.

Accounting firms encounter Justworks when clients use the PEO model for payroll and benefits. The platform handles payroll tax calculations, filings, and payments automatically, and provides clean reporting that firms can use for reconciliation, tax preparation, and financial reviews.

Justworks is best suited for small US businesses (typically under 100 employees) that want payroll, benefits, and compliance handled through a single provider. The PEO model is not right for every business, so firms should consider whether clients need the benefits access that a PEO provides or whether a standalone payroll platform would be more appropriate.