The definitive payroll and HR platform for small businesses and accountants, combining simplicity with enterprise-grade tax filing.
OnPay is a high-performance, cloud-native payroll and HR management platform positioned in 2026 as the premier choice for SMBs requiring robust tax compliance and multi-state functionality without the complexity of enterprise suites like Workday. Technically, OnPay's architecture is built on a highly available cloud infrastructure that handles complex tax engine calculations across 50+ jurisdictions simultaneously. Its core value proposition lies in its 'all-inclusive' pricing model, which eliminates the tiered feature-gating common in competitors like Gusto or ADP. The platform integrates deeply with accounting ecosystems such as QuickBooks and Xero, utilizing bi-directional data syncing to ensure general ledger accuracy. By 2026, OnPay has expanded its automated tax filing engine to include proactive compliance monitoring, using machine learning to detect payroll anomalies before filing deadlines. The interface focuses on UX efficiency, allowing administrators to run payroll in under two minutes while maintaining strict data integrity for both W-2 employees and 1099 contractors.
OnPay takes 100% responsibility for the accuracy of federal, state, and local tax filings and payments.
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Calculates and pays taxes in all 50 US states with no additional surcharge per state.
Digital enrollment for health, dental, and vision insurance directly within the payroll workflow.
Permanent digital portal for employees to access pay stubs and tax forms even after leaving the company.
System automatically notifies state agencies of new hires as required by law.
Integration with financial wellness tools allowing employees to access earned wages before payday.
Deep API integration with QuickBooks Online, Xero, and FreshBooks for real-time ledger updates.
Manual calculation errors and missed tax filing deadlines.
Registry Updated:2/7/2026
Complex state-specific withholding and unemployment tax registrations.
Segmenting payroll and contractor payments within a single workflow.