By TL;DR: Onshore, nearshore, and offshore are the three geographic IT staffing models defined by Staffing Industry Analysts (SIA). They differ on cost (a 3 to 4 times spread between onshore and offshore senior engineer rates), time-zone overlap, and compliance complexity. Forrester reports that 62 percent of enterprise IT leaders use at least one offshore or nearshore provider in 2026. This guide covers what each model means in practice and how to pick.
Once you have picked an engagement model (covered in the previous article), the next decision is geographic: where will the workers actually be based. SIA classifies geographic models in three categories, and the choice affects cost, time-zone overlap, cultural alignment, and compliance complexity.
The Three Geographic Models, Defined
SIA’s Global Workforce Solutions Buyer Survey uses three industry-standard terms for geographic IT staffing models.
Onshore means the workers are in the same country as the buyer. For a US buyer, onshore IT staffing means workers based in the US. SIA notes that onshore engagements typically command the highest rates and the lowest friction (time zone, language, and compliance overhead are all minimal).
Nearshore means the workers are in a different country but on the same continent or in an adjacent time zone. For a US buyer, nearshore IT staffing commonly means Mexico, Colombia, or Brazil. For a UK or German buyer, it commonly means Poland, Portugal, or Romania. Nearshore typically offers 75 to 90 percent time-zone overlap with the buyer at 40 to 60 percent of onshore cost.
Offshore means the workers are in a different region with limited time-zone overlap, typically 8 or more hours away. For a US buyer, offshore IT staffing commonly means Vietnam, the Philippines, Indonesia, India, or other Asia-Pacific markets. Offshore offers the largest cost advantage (typically 65 to 75 percent below onshore) but requires async work patterns and adds compliance complexity that EOR services address.
The Cost Difference Is Real
The cost spread between geographic models is the largest single financial lever in IT staffing decisions. According to BLS Occupational Employment Statistics and SIA regional rate data, senior software engineer fully-loaded monthly rates via a staffing provider vary roughly as follows.
A few practical notes on the numbers:
- Rates shown are fully-loaded monthly costs charged by the staffing provider to the buyer. They include salary, employer taxes, benefits, payroll administration, vetting, and provider margin.
- The 3 to 4 times spread between US onshore and offshore APAC is the single largest source of runway extension in IT staffing decisions. A team of five senior engineers in Vietnam costs roughly the same as one senior engineer in San Francisco.
- Within offshore, market-specific factors matter. Vietnam tends to be slightly cheaper than India for senior roles per SIA’s 2025 IT Staffing Report, but India has deeper supply for specific specialties (data engineering, enterprise Java).
- Country-specific rate cards for each major Asian market are available in the Second Talent developer rate cards.
Talent Supply Depth by Region
Cost is the surface-level signal. Underneath, what separates a workable offshore engagement from a stalled one is the depth of the talent pool in the chosen market. SIA’s 2025 Global IT Talent Supply Index ranks markets by both the absolute engineer count and the share of that population with senior-level experience. The picture varies more than the rate card suggests.
India remains the largest absolute pool. NASSCOM reports roughly 5.4 million tech workers in 2025 with an annual pipeline above 1.5 million STEM degrees. Specialty depth is strongest in enterprise Java, data engineering, SAP, and Oracle. The trade-off is that the top 5 percent of senior engineers is contested by domestic IT services giants (TCS, Infosys, Wipro) and Bangalore product companies, compressing senior availability for external buyers.
Vietnam has roughly 530,000 tech workers per VINASA 2025, with the cohort growing 9 to 11 percent per year. Depth concentrates around full-stack JavaScript, Go, mobile (Flutter, React Native), and AI/ML engineering tooling. Senior availability is higher relative to demand than in India because local product-company gravity is smaller, and FX exposure is muted by a managed-band currency.
Philippines reports approximately 1.6 million ICT workers per IBPAP 2025, with a structural English-fluency advantage (Education First EPI high-proficiency band). Specialty depth covers customer-facing engineering, QA, and DevOps support functions where real-time English matters.
Mexico holds around 700,000 software engineers per the Mexican Internet Association (AMITI), concentrated in Guadalajara, Monterrey, and Mexico City. Specialty depth is strongest in fintech and cloud platform engineering. Senior-tier depth (8+ years) is shallower than India or Vietnam.
Poland has roughly 450,000 software developers per PARP, with deep pools in enterprise .NET, embedded systems, cybersecurity, and game development. EU labor alignment makes Poland the default nearshore option for German, UK, and Nordic buyers, though senior rates have converged on Western Europe more than rate-card narratives suggest.
The Time-Zone Math, Spelled Out
Cost is the obvious advantage of offshore. The less-obvious cost is time-zone overhead. Forrester’s 2026 Workforce Survey reports that distributed teams with less than 4 hours of daily overlap take 23 to 35 percent longer to complete the same project as fully co-located teams, unless they invest in async-by-default practices.
The actual overlap windows are worth working out precisely. The table below assumes a 9am to 6pm working day in each location, ignoring daylight savings shifts (which add a half-hour of slippage twice a year).
- New York (ET) and Vietnam (ICT): 12 hours apart, zero default overlap. Practical overlap of 1 to 2 hours daily requires the Vietnam team starting at 3pm local or buyer leadership taking 8am ET calls (8pm ICT).
- San Francisco (PT) and Philippines (PHT): 15 hours apart. Stretching the Philippines side to 11am to 8pm local gives a clean 3-hour overlap with PT mornings.
- London (GMT) and Vietnam (ICT): 7 hours apart. The buyer’s morning maps to the engineer’s afternoon, yielding 2 to 3 hours overlap with no schedule engineering.
- Berlin (CET) and Bangalore (IST): 4.5 hours apart. Overlap of 4 to 5 hours daily by default; most teams treat this as functionally co-located.
- New York (ET) and Mexico City (CST): 1 hour apart. Full overlap, the nearshore pitch in full.
- Sydney (AEDT) and Philippines (PHT): 3 hours apart, 6 to 7 hours overlap. The cleanest offshore pairing in the industry.
The async overhead can be more than paid for by the cost advantage, but only if the team is set up for it. Most failed offshore engagements failed on async practices, not on talent. Teams operating below 4 hours of daily overlap need clear specs, written communication, and tools (Linear, Notion, GitHub Issues) tuned for async-first workflows.
Regulatory, Tax, and FX Considerations by Region
Cross-border worker engagement adds compliance complexity. SIA’s 2025 Compliance Benchmark and the World Bank’s 2025 Doing Business indicators identify three risk vectors that vary materially by region.
Worker classification enforcement: Mexico’s 2021 Reforma de Subcontratacion restricts contracted personnel for core business activities, making EOR or local staffing effectively mandatory for nearshore extended-team engagements. India’s draft Industrial Relations Code tightens the contractor definition past 12 months. Vietnam and the Philippines retain flexible contractor frameworks but treat sustained, manager-directed engagements as employment under Labor Code Article 13 (Vietnam) and DOLE Department Order 174 (Philippines). Direct 1099-style engagement while directing day-to-day work has been litigated heavily in the US, UK, and EU per Forrester’s 2026 Contingent Workforce Compliance research.
IP enforcement strength: The US Chamber International IP Index ranks Poland, the UK, Singapore, and Japan in the top tier for software IP. India and Mexico fall mid-band; the Philippines, Vietnam, and Indonesia rank lower for enforcement speed though contractual IP assignment clauses remain enforceable. Practical mitigation is contractual: assignment-of-invention clauses with US or UK governing law, plus source-code escrow for sensitive builds.
Permanent establishment tax exposure: Hiring workers where the buyer has no legal entity can trigger permanent establishment tax under OECD Article 5 (dependent agent or fixed place of business). EOR services solve this by hosting workers on the EOR’s local entity. The Second Talent EOR covers ten Asian markets.
FX volatility: Quoted-in-USD rates transfer FX risk to the provider; local-currency rates transfer it to the buyer. The Vietnamese dong, Indian rupee, and Philippine peso have moved within 6 to 10 percent annual bands against USD over the last three years per Bank for International Settlements data. The Mexican peso and Polish zloty have run 12 to 18 percent annual bands, compressing nearshore cost predictability for European buyers.
Data residency: EU GDPR Article 44, the US DoD CMMC framework, and Singapore’s Cybersecurity Act carry residency or adequacy requirements. Offshore IT staffing may not be allowed for certain workloads regardless of cost; always check sector rules before scoping.
Hybrid Sourcing Models
Few enterprise teams pick a single geography. SIA’s 2025 buyer survey reports that 41 percent of enterprise IT leaders run hybrid teams with onshore leads and offshore individual contributors, and the share rises to 58 percent among technology buyers with engineering headcount above 200.
Onshore lead, offshore IC: An onshore engineering manager or architect sets direction and runs stakeholder conversations; offshore individual contributors execute against tickets. Keeps the most expensive accountability seat in the business’s time zone while scaling execution offshore.
Follow-the-sun delivery: Teams in three time zones (commonly US, Europe, Asia) hand off at end of shift for 24-hour velocity. Forrester’s 2026 IT Operations research finds follow-the-sun is most successful for production incident response and 24/7 platform operations where hand-off artifacts are clear, and least successful for product development with ambiguous scope.
Onshore strategy, nearshore execution, offshore scale: A three-tier model where strategy sits onshore, mid-tier feature development nearshore (Mexico, Poland), and volume scale (QA, support engineering, data labelling) offshore. Gartner’s 2026 Magic Quadrant for Talent Acquisition Services flags this as the dominant pattern among Forbes Global 2000 IT functions.
Center-of-excellence model: A dedicated offshore center (typically 20 to 100 engineers in one Asian or Eastern European city) owns a defined product domain end-to-end. Common in financial services where Citi, JPMorgan, and Goldman Sachs operate engineering centers in Bangalore, Manila, and Warsaw. Trades higher fixed setup cost against lower long-run unit cost.
How to Choose: A Decision Framework
A few practical guidelines, drawn from SIA buyer survey patterns:
- Start with the cost question. If onshore rates fit your budget, time-zone and compliance trade-offs do not need to be considered.
- If onshore is unaffordable, ask how much time-zone overlap you need. If 4+ hours, nearshore. If 2 to 4 hours, either nearshore or offshore with async-first practices. If less than 2 hours, offshore.
- If the work is sensitive (regulated data, IP that should not leave a specific jurisdiction), check sector rules before scoping offshore.
- If you are uncertain, run a 90-day staff augmentation engagement in your preferred geographic model. You will learn far more from the actual collaboration than from any framework.
Hire Across Onshore, Nearshore, or Offshore
Second Talent operates as an offshore IT staffing provider with talent across Vietnam, the Philippines, Indonesia, Singapore, and the rest of Asia. The platform also supports hybrid teams with onshore leads via partner networks and EOR services across ten Asian markets.
Common starting points:
- Hire engineers in Vietnam for the largest offshore APAC supply
- Hire engineers in the Philippines for English-fluent senior talent
- Hire engineers in Indonesia for emerging-market rates
- Use EOR services to convert offshore contractors to direct employment
Matching takes 24 hours. Vetting, contracting, payroll, and EOR are handled. $0 upfront, pay only when you make a hire.
