How Much Does ASO Cost? Administrative Services Only Pricing Guide

ASO costs $50–$200 per employee per month. That buys you payroll processing, benefits administration, HR compliance support, and tax filing — without the co-employment arrangement that defines a PEO. You stay the sole employer. You keep your own benefits plans, your own workers’ comp policy, and your own liability. The ASO provider handles the paperwork.

For a 75-person company, expect to pay $3,750–$15,000/month for comprehensive ASO services. That’s 30–50% less than a comparable PEO engagement — but you’re giving up the PEO’s pooled benefits buying power, shared workers’ comp risk, and co-employment liability shield. Whether that trade-off makes sense depends on your company’s size, risk profile, and how much you value control over your employment infrastructure.

What Drives ASO Pricing

Five factors determine where your quote lands within the $50–$200 range.

To operationalize this in Aso Cost Guide, cross-check country-specific EOR options, live job demand, and pricing risk signals before final budget approval.

1. Service scope. Payroll-only ASO sits at the low end ($50–$80/employee/month). Add benefits administration and you’re at $80–$130. Full-service ASO — payroll, benefits, compliance monitoring, onboarding support, and HR advisory — pushes toward $150–$200. The more functions you outsource, the higher the per-employee cost.

2. Employee count. ASO providers have fixed overhead per client. Spreading that across 200 employees costs less per head than across 25. Expect meaningful price breaks at 50, 100, and 250 employees. Below 25 employees, many ASO providers won’t engage — the per-client economics don’t work.

3. Payroll complexity. Single-state payroll with salaried employees is simple. Multi-state payroll with hourly workers, shift differentials, garnishments, and tip reporting adds complexity — and cost. Companies operating in 10+ states pay more than single-state employers. International payroll (even for a handful of expats) can add $100–$250/employee/month on top of the base ASO fee.

4. Benefits administration complexity. If you offer a single health plan and a 401(k), administration is straightforward. If you offer multiple medical plan tiers, HSA/FSA, dental, vision, life, disability, commuter benefits, and a stock option plan — each additional plan adds administrative work. Some ASO providers charge per-plan fees on top of the per-employee rate.

5. Service level and technology. Self-service ASO platforms where your team handles data entry cost less than full-service models with a dedicated account manager. The technology gap matters too — an ASO provider with a modern platform (real-time dashboards, employee self-service, API integrations) charges more than one running on legacy systems with email-based workflows.

ASO Pricing vs. PEO Pricing

This is the comparison most buyers are making. Both models handle similar administrative functions, but the employment structure — and the pricing — differ.

The headline ASO fee looks cheaper, but the total cost of employment may not be. A PEO at $120/employee/month includes access to large-group health insurance rates that can save $200–$400/employee/month compared to small-group plans. A PEO’s pooled workers’ comp policy may save another $50–$150/employee/month for higher-risk industries.

For a 50-person company with $400K/year in health insurance premiums, a PEO that saves 15% on benefits costs saves $60,000/year — more than the difference between PEO and ASO fees.

When ASO wins on cost: Companies with 100+ employees that already have competitive benefits rates through their own broker. At that scale, your group is large enough to negotiate decent premiums, and paying for the PEO’s pooled benefits adds no value. You’re paying the PEO margin for benefits buying power you don’t need.

When PEO wins on cost: Companies with fewer than 75 employees in standard-risk industries. The PEO’s benefits savings typically exceed the higher per-employee fee, and the co-employment risk-sharing has real value.

For the full model comparison, see EOR vs ASO.

Hidden Costs

You own every compliance risk. ASO providers help with compliance, but they don’t share liability. If your ASO provider miscalculates overtime in California and the DLSE comes knocking, that’s your problem. PEOs share this risk. With ASO, you’re buying administrative execution, not a liability shield. Budget for employment practices liability insurance (EPLI) separately — $1,500–$10,000/year depending on headcount and industry.

Benefits brokerage is separate. Your ASO provider administers your benefits, but you still need a broker to negotiate and place your health insurance, dental, vision, life, and disability plans. Broker fees add $50–$150/employee/year, and the quality of your broker directly impacts your premiums.

Workers’ comp is your problem. ASO providers don’t pool workers’ comp risk. You procure your own policy at your own experience modification rate. For low-risk industries (tech, professional services), this is negligible. For construction, manufacturing, or healthcare, standalone workers’ comp can cost 5–15% of payroll — significantly more than a PEO’s pooled rate.

Implementation takes longer than quoted. ASO providers typically quote 4–8 weeks for implementation. Reality is often 6–12 weeks, especially for multi-state employers with complex payroll configurations. The parallel-run period (running your old system alongside the new one) adds cost and administrative burden.

Annual price increases. Most ASO contracts include annual escalation clauses of 3–5%. Over a 3-year contract, a $100/employee/month rate becomes $109–$116. Negotiate a cap or lock rates for the contract term.

ASO vs. EOR Costs

ASO and EOR serve different purposes, but companies expanding internationally sometimes wonder if ASO can handle their overseas hires. It can’t.

ASO makes your existing HR infrastructure run more efficiently. EOR provides the infrastructure where you don’t have it. A company with 200 US employees and 15 international hires might use ASO domestically and EOR for the international team.

The Break-Even Analysis

When does ASO make more financial sense than handling HR administration in-house?

The crossover sits around 250–350 employees. Above that, dedicated HR staff who know your business provide better service than an ASO’s standardized delivery model, and the per-employee economics favor in-house operations.

When Not to Use This Approach

You don’t have a local entity. ASO requires co-employment through your own entity. Without one, ASO isn’t available to you — that’s EOR territory.

You want to transfer employment liability. ASO doesn’t shift it. You remain the employer of record for tax and legal purposes. If that’s the risk you’re trying to offload, you need an EOR.

You have fewer than 5 employees per entity. Below this threshold, the ASO management overhead typically costs more per employee than just hiring a part-time HR coordinator or outsourcing payroll alone.

Your headcount is entirely outside markets where your entity operates. ASO only applies where you have an established entity. International teams without local entities need EOR, not ASO.

Frequently Asked Questions

Is ASO just payroll outsourcing with a fancier name?

No, though the line blurs. Payroll outsourcing is a single function — processing payroll, filing taxes, issuing pay stubs. ASO bundles payroll with benefits administration, HR compliance support, onboarding/offboarding processing, and sometimes HR advisory services. If you’re only outsourcing payroll, you’re buying payroll services, not ASO. The distinction matters because ASO’s value comes from the integrated bundle.

Can I switch from PEO to ASO?

Yes, and companies commonly do this at 75–150 employees when they’ve outgrown the PEO’s benefits buying power advantage. The transition takes 60–90 days to move payroll, set up standalone benefits plans, and transfer workers’ comp coverage. Time it to coincide with your benefits renewal to minimize employee disruption.

Do ASO providers handle multi-state compliance?

Most comprehensive ASO providers do — they file state tax registrations, manage state-specific withholding, and flag compliance issues. But “handling compliance” means advising and filing, not absorbing liability. If their advice is wrong, you face the penalty. For companies in 15+ states, verify that the ASO provider has specific expertise and registered agent capability in each state.

What’s the minimum company size for ASO?

Most ASO providers set minimums at 25–50 employees. Below 25, the per-client implementation and management costs don’t work for the provider. Companies under 25 employees are better served by a PEO (which bundles more value at that scale) or standalone payroll software plus an HR consultant.

To connect this guidance with live hiring demand, see hiring your first international employee and remote jobs by country.

Further Reading

• EOR vs ASO — When administrative outsourcing vs. legal employment
• How Much Does HRO Cost? — Adjacent outsourcing model cost benchmarks
• PEO Cost Guide — PEO pricing for direct comparison
• PEO vs HR Outsourcing — Co-employment vs. vendor service models
• What Is a PEO? — How co-employment works
• Global Hiring Models Overview — ASO, PEO, EOR, HRO, and staffing compared
• Compare EOR providers
• Top EOR reviews
• Hiring your first international employee

Anchal Katyal · Founder, eorHQ

Anchal has spent over a decade in product strategy and market expansion across Asia and the Middle East. She evaluates EOR providers on compliance depth, entity ownership, payroll accuracy, and in-country support quality.

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