Gusto vs. Justworks: buy payroll software or a PEO?
This is not one product category with two interchangeable vendors. Gusto sells payroll-centered plans with benefits and HR capabilities. Justworks sells both payroll software and a PEO that uses co-employment to take on defined employer administration. Decide which operating model you need before comparing feature lists.
Start with the employment model, not the payroll screen.
Evaluate Gusto first if you want transparent payroll pricing, automated tax filings, benefits administration, time and HR options, and control over the company's existing employer, broker, insurance, and compliance structure.
Evaluate Justworks Payroll first if you want a lower published software price at your employee count and value Justworks' payroll and support approach without entering a PEO relationship.
Evaluate Justworks PEO first if benefits access, workers' compensation, multistate administration, 24/7 support, and an explicit sharing of employer responsibilities justify a materially higher per-employee fee. Do not treat the PEO premium as software markup; test whether its bundled services replace real broker, HR, compliance, insurance, and administrative costs.
Gusto vs. Justworks at a glance
| Decision point | Gusto | Justworks |
|---|---|---|
| Product model | Payroll software with benefits and HR capabilities. | Separate Payroll product or co-employment through PEO Basic and PEO Plus. |
| Published entry price | Simple: $49 base plus $6 per person monthly. | Payroll: $50 base plus $8 per employee monthly. |
| PEO option | Not part of the standard published payroll plans compared here. | PEO Basic: $79 per employee; PEO Plus: $124 per employee monthly. |
| Health benefits | Brokerage and benefits administration tied to an active payroll account; availability varies. | Payroll benefits options plus broader PEO Plus access and administration; verify plans by state and census. |
| Workers' compensation | Available through the platform; price and policy terms require confirmation. | Access is included in the PEO structure and coverage is charged separately; exceptions apply. |
| Support | Plan-dependent support; Premium includes a dedicated service adviser and certified HR experts. | PEO plans advertise 24/7 phone, email, and chat support; Payroll support scope differs. |
1. Separate payroll pricing from the PEO decision
Gusto currently publishes Simple at $49 per month plus $6 per person, Plus at $80 plus $12 per person, and Premium at $180 plus $22 per person. Simple centers on single-state payroll. Plus adds multistate payroll, next-day pay, and time tracking. Premium adds a dedicated service adviser, certified HR experts, deeper reporting, priority support, and migration help.
Justworks publishes three distinct US choices: Payroll at $50 per month plus $8 per employee, PEO Basic at $79 per employee with no base fee, and PEO Plus at $124 per employee with no base fee. The PEO tiers include services that a payroll-only quote does not, so their higher price should be compared with displaced costs rather than only Gusto's subscription.
| 25-employee example | Published monthly price | Published annual price |
|---|---|---|
| Justworks Payroll | $250 | $3,000 |
| Gusto Plus | $380 | $4,560 |
| Gusto Premium | $730 | $8,760 |
| Justworks PEO Basic | $1,975 | $23,700 |
| Justworks PEO Plus | $3,100 | $37,200 |
These calculations use regular published platform prices and are not quotes. Add health premiums, employer contributions, workers' compensation, retirement fees, state registrations, time tracking, optional HR consulting, promotions, implementation, and termination costs. Obtain a written proposal using the same employee census and effective date.
2. Understand what co-employment changes
Justworks describes co-employment as a legal arrangement in which the customer continues to employ its team while Justworks becomes a co-employer for responsibilities allocated in the customer service agreement. Justworks says this lets it administer payroll, secure workers' compensation, consolidate certain tax and insurance functions, and provide benefits access.
The company still controls hiring decisions, day-to-day work, compensation, performance, and termination decisions. The contract—not a marketing summary—determines which party performs filings, responds to notices, maintains insurance, handles claims, and bears a given risk. Finance, HR, legal counsel, and the insurance adviser should review that allocation before approval.
Gusto's standard payroll relationship leaves the company's employer structure intact. That can be preferable when existing benefits, workers' compensation, HR support, and compliance processes work well or when the company wants the freedom to change one provider without unwinding a bundled PEO relationship.
3. Price the PEO premium against costs it can actually replace
Keep insurance premiums and employer benefit contributions visible. Bundling them into one payment does not make them platform savings.
Build a current-state cost ledger before requesting proposals. Include payroll software, broker fees or commissions where visible, HR consulting, employment counsel, workers' compensation administration, EPLI, COBRA, benefits enrollment, state registrations, tax-notice work, time tracking, and internal payroll/HR hours.
Then classify each cost as eliminated, reduced, unchanged, or newly added under each proposal. Require the owner of every remaining task. A PEO only creates economic value when the services are used, the risk transfer is real under the contract, or the benefits and insurance economics improve enough to offset the fee.
4. Compare benefits with an employee census, not a logo list
Gusto says it offers medical, dental, and vision options, licensed advisers, 401(k), HSA, FSA, commuter, life, and disability benefits. It can also integrate eligible existing plans, and its pricing page notes that some broker integration has a per-eligible-employee fee depending on plan.
Justworks PEO Plus publishes medical, dental, vision, HSA/FSA, life and disability, commuter, COBRA administration, mental-health, and family-building benefits. Its PEO materials also describe small-group, large-group, and ICHRA coverage models. None of this proves a specific plan is available or economical for one company.
Provide the same census, states, dependents, contribution policy, effective date, and desired networks to both providers. Compare premiums, deductibles, out-of-pocket maximums, networks, employer contributions, employee deductions, waiting periods, renewal process, COBRA, invoice reconciliation, and continuation options after leaving the provider.
5. Map payroll taxes, registrations, and notices by jurisdiction
Gusto advertises federal, state, and local tax calculation, filing, and payment, with state tax registration available as part of its broader payroll offering. Justworks Payroll advertises employer payroll tax filings, while its PEO model centralizes additional state tax and unemployment administration under the co-employment structure.
Create a matrix for every work and home location. Record withholding, unemployment, local tax, paid leave, disability, reciprocity, registration status, deposit schedule, agency credentials, and notice owner. Ask who files amendments, handles prior-provider errors, updates unemployment rates, and pays penalties when either the vendor or customer supplied incorrect data.
A multistate promise is not a control. Test a new state, employee move, local-tax change, off-cycle bonus, termination, retroactive correction, and agency notice. Preserve reports and agency confirmations outside the payroll platform.
6. Treat workers' compensation as insurance diligence
Justworks says PEO customers are generally covered under its workers' compensation policies, with exceptions, and are automatically enrolled and charged. Gusto offers workers' compensation access within its platform, but the insurer, pricing, eligibility, audit mechanics, and claims process should be confirmed in the quote.
Compare class codes, rates, payroll basis, minimum premiums, experience modification, state exceptions, owners and officers, remote employees, pay-as-you-go mechanics, certificates, claims handling, year-end audit, cancellation, tail exposure, and how coverage transitions on the PEO start and end dates.
Do not approve a migration until the broker or insurance adviser confirms there is no coverage gap and finance understands every deposit, audit adjustment, credit, and cancellation charge.
7. Protect the accounting close and cash forecast
Payroll software can calculate pay correctly and still create a poor finance workflow. Test the journal detail for wages, employer taxes, employee deductions, benefits, reimbursements, garnishments, contractor payments, departments, locations, classes, projects, clearing accounts, and cash.
A PEO may combine payroll, tax, benefit, insurance, and service charges into funding events that differ from a traditional payroll provider. Require a funding calendar and reconciliation package showing gross-to-net, taxes, benefit deductions, employer costs, platform fees, insurance, credits, corrections, and the bank withdrawal timing.
Run a month-end close with real data before cutover. Finance should be able to reconcile each bank debit to the payroll register and general ledger without relying on undocumented spreadsheets or one employee's memory.
Run this payroll-and-PEO diligence process
- Choose the models. Decide whether the shortlist includes payroll software, Justworks Payroll, a PEO, or all three.
- Issue one census. Give vendors identical employees, states, dependents, pay types, benefit elections, and effective dates.
- Normalize three-year cost. Separate platform fees, premiums, contributions, insurance, add-ons, implementation, internal labor, and exit costs.
- Review responsibility. Map every payroll, tax, benefits, HR, compliance, insurance, and notice task to the company or provider.
- Test a real payroll. Include salary, hourly, overtime, bonus, reimbursement, deduction, garnishment, leave, contractor, correction, and termination cases.
- Reconcile the close. Tie gross-to-net, liabilities, bank withdrawals, benefit invoices, insurance, fees, and journal entries.
- Review contracts. Inspect co-employment, service levels, indemnities, insurance, data access, renewal, pricing changes, and termination obligations.
- Plan the transition. Reconcile year-to-date taxes and balances, confirm coverage dates, assign notice ownership, preserve exports, and document rollback.
Recommendation by operating profile
Lean team with existing advisers
You primarily need payroll, filings, benefits administration, and HR tools, while your current broker, workers' compensation, counsel, and internal ownership work well.
Price-sensitive payroll buyer
You do not need co-employment. Compare Gusto with Justworks Payroll using the required plan, employee count, states, time tools, support, and accounting workflow.
Small multistate team seeking bundled administration
You value a co-employer, benefits access, workers' compensation, compliance infrastructure, and 24/7 support enough to test whether the PEO fee replaces real cost and risk.
Compare the wider payroll market.
Use the rules-based matcher or browse the Payroll directory if Gusto and Justworks are not the only reasonable candidates. Vendors cannot pay for a higher position.
Frequently asked questions
Is Gusto or Justworks better for a small business?
Gusto is usually the more direct evaluation when a small business primarily needs payroll software, tax filing, benefits administration, and HR tools while retaining its existing insurance and employer structure. Justworks PEO is the more relevant evaluation when the business wants a co-employer to assume defined payroll, tax, workers' compensation, benefits, and compliance administration responsibilities. Justworks also offers a non-PEO Payroll plan, so compare the actual product rather than only the vendor names.
What is the main difference between Gusto and Justworks PEO?
The central difference is co-employment. With Justworks PEO, the customer remains responsible for its employees and day-to-day management while Justworks becomes a co-employer for responsibilities allocated in the customer service agreement. Gusto's standard payroll plans are payroll and HR software services, not the same PEO operating model.
How much do Gusto and Justworks cost for 25 employees?
At current published regular prices, Gusto Plus is $380 per month and Gusto Premium is $730. Justworks Payroll is $250 per month, Justworks PEO Basic is $1,975, and PEO Plus is $3,100. These figures exclude benefit premiums, workers' compensation, optional services, implementation work, promotions, and other charges, and the products do not provide equivalent scope.
Can Justworks provide health insurance?
Justworks PEO Plus advertises medical, dental, and vision administration along with HSA/FSA accounts and other benefits. Availability, carrier, plan design, network, underwriting, employee eligibility, and employer contribution should be verified for the company's states and census before deciding.
Does using a PEO mean giving up control of employees?
No. Justworks states that the customer continues to employ and manage its employees while the contract allocates specified administrative responsibilities to the PEO. Buyers should review the customer service agreement carefully because responsibility varies by subject and cannot be inferred from the word PEO alone.
Method and limitations
This guide compares official public US product, pricing, help-center, and program information reviewed on October 3, 2026. It does not rely on vendor payment, private demonstrations, customer-review averages, or claimed hands-on experience. A PEO decision has legal, tax, benefits, and insurance consequences beyond software selection. Pricing, eligibility, coverage, carriers, plan networks, tax responsibilities, and service terms can change. Validate requirements with company data, qualified advisers, current proposals, and final contracts.
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