Most teams don't start by choosing a hiring model. They start with a constraint: a role they can't fill locally, a compliance question nobody on the team can answer, or a deadline that won't move. The model choice follows from the constraint, not the other way around.
The problem is that EOR, PEO, staffing agencies, and staff augmentation get blurred together in sales conversations. Each solves a different problem, carries different risk, and costs money in different ways. Picking the wrong one doesn't just waste budget; it can create compliance exposure that takes months to unwind.
This guide breaks down when each model fits, what it actually costs, and where the traps hide, with specific attention to LatAm hiring scenarios that engineering and HR leaders encounter most often.
TL;DR: 6 decision rules to start with
If you need to hire a full-time employee in a country where you have no legal entity, use an EOR.
If you already have a US entity and want to outsource HR administration, benefits, and payroll, use a PEO.
If you need to fill a short-term or temporary role and want someone else to source candidates, use a staffing agency.
If you need to add specific skills to an existing team while keeping day-to-day management in-house, use staff augmentation.
If you're a startup with fewer than 50 US employees and want better benefits pricing, a PEO can help domestically, but you still need an EOR (or a partner like Howdy) for international hires.
If you're replacing an offshore outsourcing vendor because quality or retention is suffering, staff augmentation gives you more control over who joins your team and how they work.
Plain-English definitions
Employer of Record (EOR): A company that legally employs workers on your behalf in a country where you don't have an entity. The EOR handles payroll, taxes, benefits, and local compliance; you direct the person's daily work.
Professional Employer Organization (PEO): A co-employment arrangement where the PEO shares employer responsibilities (payroll processing, benefits administration, HR compliance) with your existing company. You must already have a legal entity in the country where the employee works. The IRS classifies PEOs as third-party payer arrangements, not as standalone employers.
Staffing agency: A firm that recruits and often employs temporary or contract workers, then places them with client companies for a defined period. The agency typically handles sourcing, screening, and payroll for the placement.
Staff augmentation: A model where external professionals are embedded into your internal team, working under your management and processes. You retain control over delivery; the provider handles recruiting, employment logistics, or both. The core distinction from outsourcing is that staff augmentation keeps management authority with you, while outsourcing shifts delivery ownership to a vendor.
EOR vs PEO: The difference in one paragraph
| Factor | EOR | PEO | Staffing Agency | Staff Augmentation |
| Compliance liability | Transfers to EOR (EOR is the legal employer) | Shared via co-employment (client retains obligations for hiring decisions, workplace safety, and wage/hour compliance) | Agency carries liability for its employees; client has workplace safety duties | Depends on who is the legal employer: the provider, an EOR, or the client directly |
| Speed to hire | Days to weeks (no entity setup needed) | Weeks (requires existing entity + PEO onboarding) | Days to weeks for temp roles | 2 to 6 weeks depending on vetting depth |
| Cost structure | Per-employee monthly fee or % of salary, plus local statutory costs | % of payroll (typically 2% to 12%) as admin fee | Markup on hourly/daily bill rate (often 20% to 75%) | Monthly rate or markup on salary; Howdy charges an inclusive 15% fee |
| Control over work | Client directs daily work; EOR handles employment admin | Client directs all work; PEO handles HR admin | Client directs work on-site; agency manages employment | Client manages day-to-day work, tasks, and processes |
| IP and security | IP assignment via employment contract (drafted by EOR under local law) | Standard employment IP terms (client's own contracts) | Requires explicit IP assignment in placement agreement | IP terms must be in the service agreement; LatAm countries like Brazil and Argentina require locally specific assignment language |
| Termination risk | EOR manages compliant termination per local law (severance, notice periods) | Client drives the decision; PEO advises on compliance and processes offboarding | Agency handles termination of its employee; lower long-term commitment | Provider handles offboarding if they are the legal employer; otherwise the client manages termination directly |
When to use an EOR
An EOR makes sense when you want to hire a full-time employee in a country where you have no legal entity and don't plan to set one up soon. Entity incorporation in most LatAm countries takes 2 to 6 months and carries ongoing administrative costs, so for a small number of hires, an EOR is the faster and cheaper path.
Best-fit triggers:
- No local entity. You want to hire in Mexico, Colombia, Brazil, or Argentina but don't have a subsidiary there.
- Compliance transfer. You want someone else to own payroll tax filings, statutory benefits, and labor law compliance in the local jurisdiction.
- Speed. You need a person onboarded in weeks, not months.
- Single-country or small-team hires. You're hiring 1 to 10 people in a specific country and the volume doesn't justify entity setup.
The tradeoff: EOR fees add up per head, and you're relying on the EOR's local legal expertise. Not all EOR providers own their own entities; some subcontract to local partners, which adds a layer of opacity. Ask directly whether the provider operates its own in-country entity or uses a third party, and review how EOR contracts are structured in LatAm before signing.
When to use a PEO
A PEO fits when you already have a legal entity in the country (usually the US) and want to pool HR services, benefits purchasing power, and payroll administration across your workforce. PEOs are popular with US companies between 10 and 150 employees that want access to large-company benefits plans.
Best-fit triggers:
- Existing US entity. You employ people in the US and want help with benefits, payroll, workers' comp, and HR compliance.
- Benefits leverage. You're too small to negotiate competitive health insurance on your own.
- HR administration relief. You want to offload the operational burden of running payroll, managing open enrollment, and tracking compliance deadlines.
The joint employment concept is worth knowing before you sign a PEO agreement. Under co-employment, both your company and the PEO share employer responsibilities. Your company still makes hiring, firing, and day-to-day management decisions; the PEO handles administrative employer functions, not people management.
PEO gotchas to watch for: Co-employment means your company retains responsibility for wage and hour compliance, workplace safety, and anti-discrimination obligations, even though the PEO files payroll taxes on your behalf. Confirm in the contract who is responsible for employment tax deposits and W-2 filings, because the IRS can hold both parties liable if something goes wrong. Benefits renewals deserve scrutiny too: many PEO contracts allow annual rate adjustments, and some can revise benefits costs mid-year, so ask whether rates are locked for the contract term and what happens if your claims experience triggers a repricing.
A PEO does not solve international hiring. If you need to employ someone in Colombia and you have no Colombian entity, a PEO cannot help. You need an EOR or a partner with a local entity.
When to use a staffing agency
Staffing agencies are the right tool when you need people quickly for defined, often temporary, assignments and want someone else to handle sourcing and screening.
Best-fit triggers:
- Short-term or project-based roles. You need 3 QA testers for a 4-month sprint, not permanent team members.
- Rapid sourcing at scale. You need 20 warehouse workers or 5 customer support agents by next month.
- Variable demand. Your headcount needs fluctuate seasonally or by project phase.
- Recruiting capacity gap. Your internal recruiting team can't handle the volume or the role is outside your usual hiring profile.
Staffing agencies typically charge a markup on the worker's bill rate. For technical roles, that markup can be substantial (40% to 75% is common for specialized engineering talent), and transparency varies widely. If you're hiring engineers in LatAm, salary benchmarks can help you evaluate whether a quoted rate is reasonable.
When to use staff augmentation
Staff augmentation is for teams that need specific skills integrated into their existing workflows. The augmented engineers, designers, or analysts work alongside your internal team, attend your standups, use your tools, and report to your managers.
Best-fit triggers:
- Skill gaps on a current team. You need a senior backend engineer with Elixir experience for 6+ months, and your team will manage the work directly.
- Flexible capacity. You want to scale a team up or down without the overhead of direct hiring in a new country.
- Retained control. You want to decide how the work gets done, what tools are used, and how quality is measured.
- Transition from outsourcing. You're replacing an outsourced team because you lost visibility into quality, process, or individual contributor performance.
Howdy operates in the staff augmentation space but covers the full chain: recruiting, legal employment through its own LatAm entities, compliance, payroll, benefits, equipment, and retention support. The 15% fee is inclusive, and the model is designed for companies that want one partner instead of stitching together separate EOR, recruiting, and HR vendors.
Common scenarios and a decision tree
Scenario 1: US startup hiring 1 engineer in Mexico
You're a 30-person Series A startup based in Austin. You've found a strong backend engineer in Guadalajara through your network. You have no Mexican entity.
Decision: Use an EOR or an end-to-end partner like Howdy. A PEO can't help (no Mexican entity). A staffing agency is overkill for one known candidate. If you want the provider to handle recruiting, employment, and compliance in one relationship, the staff augmentation path covers all three.
Scenario 2: Building a 10-person LatAm engineering pod
You're a growth-stage company that wants to build a dedicated LatAm team (5 engineers, 2 QA, 2 designers, 1 PM) working in your sprint cycles.
Decision: Staff augmentation with an end-to-end partner. You need recruiting at scale, compliant employment across potentially multiple countries, and retention infrastructure. An EOR alone doesn't recruit for you. A staffing agency recruits but doesn't typically invest in long-term retention or team development.
Scenario 3: Replacing an offshore dev shop
Your outsourced team has high turnover and inconsistent quality. You want individual contributors you can manage directly.
Decision: Staff augmentation. You're moving from an outsourcing model (vendor owns delivery) to an augmentation model (you own delivery). The key shift is management control. Look for a partner that provides retention support, not just placement.
Scenario 4: US company with 80 employees wants better benefits
You have a US entity, 80 employees, and your health insurance renewal just came in 18% higher.
Decision: PEO. You already employ everyone in the US. A PEO pools your employees with thousands of others to negotiate better rates on health, dental, vision, 401(k), and workers' comp.
Scenario 5: 3-month QA surge before a product launch
You need 6 QA engineers for 12 weeks to hammer on a release candidate. Your internal QA team is 2 people.
Decision: Staffing agency or short-term staff augmentation. If you want the agency to manage the QA process, that's closer to outsourcing. If you want the QA engineers embedded in your team and managed by your QA lead, staff augmentation fits better.
Scenario 6: Hiring a contractor in Colombia (and you're not sure about classification)
You've been paying a Colombian developer as an independent contractor for 8 months. They work 40 hours a week, use your tools, attend your meetings, and have no other clients.
Decision: That arrangement likely creates misclassification risk under Colombian labor law. Convert the relationship to formal employment via an EOR or a partner with a Colombian entity. Continuing as-is exposes you to back-pay claims, benefits obligations, and penalties.
Scenario 7: Offering equity to a LatAm engineer hired through an EOR
You want your new senior engineer in Argentina to participate in your stock option plan, but the EOR is the legal employer.
Decision: Equity grants through an EOR are possible but require careful structuring. Tax treatment varies by country, and the grant agreement needs to account for the three-party relationship. Review how startups structure equity for remote engineers hired through an EOR before making promises.
Quick decision tree
- Do you have a legal entity in the worker's country? No → EOR or end-to-end partner. Yes → Continue.
- Do you need help with US HR admin and benefits? Yes → PEO. No → Continue.
- Is the role temporary (under 6 months) with variable demand? Yes → Staffing agency. No → Continue.
- Do you want to manage the person's daily work directly? Yes → Staff augmentation. No → Outsourcing (different article).
Cost and contract gotchas
Markup opacity. Some staffing agencies and EOR providers quote a "flat fee" that excludes local statutory costs (social security contributions, holiday bonuses, severance accruals). Always ask for a total cost-to-employer breakdown, not just the provider's fee.
Currency and FX markups. If your provider invoices in USD but pays workers in local currency, check whether an FX spread is embedded. A 2% to 3% hidden spread on every payroll cycle adds up over a year.
Minimum commitment periods. Many EOR contracts include 12-month minimums or early termination fees. If you're testing a new market with one or two hires, negotiate a shorter commitment or confirm the exit terms before signing.
Benefits inflation. PEO contracts often include annual benefits cost adjustments. Confirm whether the PEO guarantees rates for the contract period or can adjust mid-year.
IP assignment gaps. In several LatAm countries (Brazil and Argentina, notably), IP assignment clauses in employment contracts require specific language to be enforceable. A generic US-style IP assignment may not hold up. Verify that your EOR or partner drafts locally compliant IP provisions.
Severance accrual. In countries like Mexico, Colombia, and Brazil, severance and termination costs are significant and statutory. If your EOR isn't accruing these costs monthly, you may face a lump-sum bill at termination. Ask whether severance is included in the monthly fee or billed separately.
Pass-through vs. bundled pricing. Some providers quote low management fees but pass through every local cost at a markup. Others (like Howdy's 15% inclusive fee) bundle workspace, benefits, and equipment. Compare total cost, not just the headline rate.
Compliance and risk checklist for LatAm hiring
Use this before signing with any EOR, PEO, or staff augmentation provider for LatAm roles.
Classification and entity structure:
- Is the person classified as a full-time employee under local law? If paying as a contractor, have you confirmed the arrangement meets local independent contractor criteria (multiple clients, own tools, no fixed schedule)?
- Does the provider own its own entity in-country, or does it subcontract to a local partner? Direct entity ownership typically means better compliance control.
Payroll, tax, and benefits:
- Who is responsible for monthly payroll tax filings, social security contributions, and annual tax reporting?
- Are mandatory benefits (health insurance, pension, vacation, holiday bonuses like Mexico's aguinaldo, profit-sharing like Mexico's PTU) included in the cost breakdown?
IP, data, and security:
- Has the employment contract been reviewed by local counsel to confirm IP assignment clauses are enforceable?
- If the worker will access production systems or customer data, are security policies (device management, VPN, access controls) in place? Does the provider supply managed equipment?
Termination and compliance readiness:
- Do you understand the local notice period, severance calculation, and any additional termination costs? Is severance being accrued monthly or billed at termination?
- Has the provider conducted background verification appropriate to the role and permissible under local law?
- Is the provider prepared to handle local labor authority audits or inspections on your behalf?
FAQs
What is the difference between an EOR and a PEO?
Should a startup use an EOR or a PEO?
For domestic US employees, a PEO can unlock better benefits and reduce HR burden, which is valuable for startups with 10 to 100 employees. For international hires, you need an EOR or a partner that operates as one. Many startups use both: a PEO for their US team and an EOR or end-to-end partner for LatAm hires.
How is staff augmentation different from using a staffing agency?
A staffing agency primarily solves a recruiting and temporary placement problem. Staff augmentation solves a team capacity and skill gap problem. With staff augmentation, the person integrates into your team long-term, works under your management, and the provider may handle employment, retention, and development.
Is an EOR the same as hiring a contractor?
No. An EOR employs the person as a full-time employee under local law, with all statutory benefits, tax withholdings, and labor protections. A contractor is an independent worker with a commercial services agreement. Using an EOR eliminates misclassification risk that comes with incorrectly labeling a full-time worker as a contractor.
Can a PEO help me hire international employees?
A traditional PEO operates under co-employment in a single country (usually the US) and requires you to have an entity there. A PEO cannot create employment relationships in countries where you lack an entity. Some providers market "global PEO" services, but those are functionally EOR arrangements. Read the contract to understand who the legal employer actually is.
How do I choose between staff augmentation and outsourcing?
If you want to manage the people, set priorities, and own the delivery process, use staff augmentation. If you want to hand off a defined scope of work and measure results by deliverables (not by managing individuals), outsourcing fits better. The deciding factor is where management authority sits.
Sources and further reading
- IRS: Professional Employer Organizations (third-party payer arrangements)
- US Department of Labor, WHD Fact Sheet #28N: Joint Employment under the FMLA
- Field Nation: Staff Augmentation vs Outsourcing
If you're evaluating how to hire engineers in LatAm and want a partner that handles recruiting, employment, compliance, and retention in one relationship, book a call with Howdy to see how the model works for your team.