Justworks PEO model and co-employment structure
The foundation of Justworks is the professional employer organization model.
The foundation of Justworks is the professional employer organization model. When you sign up, Justworks becomes the employer of record for your employees for tax, benefits, and workers' compensation purposes. Your company retains day-to-day management control — hiring, firing, assignments, and performance — but Justworks handles payroll processing, tax filings, benefits administration, and compliance support.
This co-employment arrangement is what enables the benefits access. Because Justworks pools employees from hundreds of small businesses, it negotiates group insurance rates that individual companies could not access. The trade-off is structural dependency: exiting a PEO requires migrating multiple systems simultaneously, which is more complex than switching software vendors.
How co-employment works in practice
Employees see Justworks as their employer on tax documents (W-2s list Justworks as the employer), but your company name appears on offer letters, business cards, and day-to-day operations. The co-employment relationship is transparent to employees for practical purposes, though it appears on their tax records.
PEO exit process and what to plan for
Exiting Justworks requires setting up new payroll, benefits, workers' comp, and tax filing systems before the transition date. Most companies need 4-8 weeks to prepare. Justworks does not charge an exit fee, but the operational complexity of migrating mid-year (especially during benefits enrollment periods) can be significant.
Justworks payroll processing and tax filing
Payroll on Justworks handles salaried and hourly employees, direct deposit, tax withholding for federal, state, and local jurisdictions, W-2 and 1099 preparation, and year-end tax filing.
Payroll on Justworks handles salaried and hourly employees, direct deposit, tax withholding for federal, state, and local jurisdictions, W-2 and 1099 preparation, and year-end tax filing. The system processes payroll on a two-day cycle, with runs typically initiated on Wednesday for Friday deposit. Same-day direct deposit is available as an option.
Multi-state payroll is supported natively, which matters for distributed teams. Justworks handles state tax registration, withholding calculations, and filing for all 50 states. Garnishment processing, child support deductions, and retirement plan contribution deductions are automated. The payroll system is reliable — Capterra reviewers rate it highly for accuracy and on-time delivery.
Off-cycle payroll and bonus payments
Justworks supports off-cycle payroll runs for bonuses, commissions, and corrections without waiting for the next regular pay cycle. Off-cycle runs follow the same two-day processing timeline and include full tax calculations.
Contractor payments and 1099 processing
The platform handles contractor payments alongside employee payroll. Contractors receive direct deposit payments, and Justworks generates 1099 forms at year-end. This eliminates the need for a separate contractor payment tool for companies that use a mix of employees and contractors.
Justworks benefits administration and enrollment
Benefits on the Plus plan include medical insurance through Aetna and UnitedHealthcare, dental and vision coverage, health savings accounts, flexible spending accounts, life and disability insurance, 401(k) retirement plans, commuter benefits, and ClassPass gym memberships.
Benefits on the Plus plan include medical insurance through Aetna and UnitedHealthcare, dental and vision coverage, health savings accounts, flexible spending accounts, life and disability insurance, 401(k) retirement plans, commuter benefits, and ClassPass gym memberships. Employees enroll during onboarding or annual open enrollment through a self-service portal.
The benefits enrollment experience is straightforward. Employees see available plans, compare costs and coverage, and enroll without needing HR assistance. Plan changes during qualifying life events (marriage, birth, move) are handled through the platform. Justworks manages carrier communication, premium payments, and COBRA administration.
Medical plan options and network coverage
Justworks offers multiple medical plan tiers through Aetna and UnitedHealthcare, including HMO, PPO, and high-deductible health plans. Plan availability varies by state and employee location. Employers can choose which plans to offer and set contribution levels.
HSA and FSA account management
Health savings accounts and flexible spending accounts are available on the Plus plan. Contributions are deducted from payroll pre-tax and deposited into employee accounts automatically. Justworks partners with a third-party HSA/FSA administrator for account management and debit card access.
Justworks compliance support and employment law guidance
Compliance support is built into both the Basic and Plus plans.
Compliance support is built into both the Basic and Plus plans. Justworks' HR support team provides guidance on employment law questions, ACA compliance, workers' compensation claims, COBRA administration, and state-specific regulatory requirements. Support is available via chat, email, and phone during business hours.
The compliance layer is particularly valuable for small businesses operating in multiple states, where employment law varies significantly. Justworks tracks state-level requirements for wage and hour laws, paid leave mandates, and posting requirements. The platform also handles ACA reporting for applicable large employers on the Plus plan.
Workers' compensation insurance coverage
Workers' comp is included in both the Basic and Plus plans at no additional cost. Justworks manages the policy, handles claims processing, and adjusts rates based on your industry classification codes. For small businesses, bundling workers' comp into the PEO eliminates the need to shop for a separate policy and manage audits.
State-specific compliance tracking
Justworks monitors compliance requirements for every state where your employees are located. This includes paid sick leave laws, minimum wage updates, harassment training requirements, and workplace posting obligations. The platform alerts you when new requirements take effect in your employees' jurisdictions.
Justworks time tracking and PTO management
Time tracking on Justworks captures hours for hourly employees through a web-based clock-in and clock-out interface.
Time tracking on Justworks captures hours for hourly employees through a web-based clock-in and clock-out interface. The system calculates overtime automatically based on federal and state rules, and approved timesheets feed directly into payroll. Managers approve timesheets before each pay cycle.
PTO management handles accrual policies, request and approval workflows, and balance tracking. Employees request time off through the platform, managers approve or deny with a single click, and balances update automatically. Multiple PTO policies can be configured for different employee groups, and the system supports unlimited PTO policies as well as accrual-based tracking.
Overtime calculation rules
The time tracking module applies federal and state-specific overtime rules automatically. For states like California with daily overtime thresholds, the system calculates overtime based on daily hours rather than just weekly totals. This eliminates manual overtime calculations for multi-state teams.
PTO accrual policy configuration
PTO accrual policies can be configured by employee type, tenure, and location. The system supports annual accrual, per-pay-period accrual, and front-loaded policies. Carryover limits and maximum balance caps are configurable per policy.
Justworks integrations and platform connectivity
Justworks integrates with accounting software (QuickBooks, Xero), expense management (Expensify), and various HR and productivity tools.
Justworks integrates with accounting software (QuickBooks, Xero), expense management (Expensify), and various HR and productivity tools. The integration library is smaller than competitors like Rippling or BambooHR, reflecting Justworks' focus on being the central employment platform rather than a hub that connects to dozens of point solutions.
An API is available for custom integrations, supporting employee data sync and payroll data export. The API documentation is adequate for basic integrations but lacks the depth and webhook support that developer-heavy teams expect. For most small businesses, the pre-built QuickBooks and Xero integrations cover the primary need — getting payroll data into accounting software without manual journal entries.
Accounting software integration
The QuickBooks and Xero integrations sync payroll journal entries automatically after each pay run. This eliminates the manual data entry that accountants and bookkeepers otherwise perform. The integration maps payroll categories to chart-of-accounts line items during setup.
API access and custom integrations
Justworks provides a REST API for custom integrations covering employee records, payroll data, and time-off information. The API is suitable for basic data sync but does not support real-time webhooks, which limits its utility for event-driven automation workflows.