Hiring methods
Contractor vs Full-Time Developer: True Cost Comparison (2026)
Most contractor-vs-FTE blog posts give vague 'it depends' answers. Here is a rigorous 3-year total cost of ownership model with specific numbers, plus break-even analysis and a decision framework.
Side-by-side TCO model
Reference scenario: a mid-level software engineer either hired full-time at $150,000 base or engaged as a contractor at $120 per hour. Tier 2 US, 2026 numbers.
| Cost component | Year 1 | Year 2 | Year 3 | 3-year total |
|---|---|---|---|---|
| Full-time engineer | ||||
| Base salary | $150,000 | $150,000 | $150,000 | $450,000 |
| Benefits (32% loaded) | $48,000 | $48,000 | $48,000 | $144,000 |
| Equipment / tools | $4,000 | $1,500 | $1,500 | $7,000 |
| Onboarding ramp loss | $18,000 | $0 | $0 | $18,000 |
| Recruiting cost | $50,000 | $0 | $0 | $50,000 |
| Subtotal FTE | $270,000 | $199,500 | $199,500 | $669,000 |
| Contractor at $120/hour, 2,080 hours/year | ||||
| Hourly billing (incl. markup) | $249,600 | $249,600 | $249,600 | $748,800 |
| Equipment (BYOD typical) | $0 | $0 | $0 | $0 |
| Onboarding (no ramp loss billed) | $0 | $0 | $0 | $0 |
| Recruiting (markup absorbs it) | $0 | $0 | $0 | $0 |
| Subtotal contractor | $249,600 | $249,600 | $249,600 | $748,800 |
Year 1 winner
Contractor
$20,400 cheaper
Year 2 winner
FTE
$50,100 cheaper
3-year winner
FTE
$79,800 cheaper
Break-even analysis
At what duration does full-time become cheaper than contractor? It depends on the contractor rate and the FTE benefits load.
| Contractor rate | Annual contractor cost | FTE break-even point |
|---|---|---|
| $100/hr | $208,000 | 1.1 years |
| $120/hr | $249,600 | FTE always cheaper |
| $150/hr | $312,000 | FTE always cheaper |
| $180/hr | $374,400 | FTE always cheaper |
| $200/hr | $416,000 | FTE always cheaper |
FTE annual cost is $222K (salary + benefits + equipment + amortised recruiting). Break-even is when cumulative contractor cost equals cumulative FTE cost over the same period.
Three scenarios, three winners
6-month project
Winner: Contractor
$120K contractor for 6 months vs $111K FTE half-year cost. But that FTE cost includes onboarding ramp loss they will not finish recouping.
Contractor wins on speed-to-productivity and risk.
12-month engagement
Winner: Tied / Contractor
$250K contractor full year vs $222K FTE full year (excluding initial $50K recruiting). FTE wins by $28K but recruiting and onboarding consumed the gap.
Use contractor-to-hire if uncertain about long-term fit.
Ongoing / permanent
Winner: Full-time
3-year cumulative: contractor $750K vs FTE $694K. Plus FTE retains institutional knowledge while contractor turnover resets it every engagement.
FTE wins on TCO and knowledge retention.
Hidden costs of each
Hidden contractor costs
- Management overhead - someone tracks invoices, statements of work, change orders
- Knowledge transfer risk when engagement ends or contractor disappears
- IP and confidentiality concerns (especially with offshore agencies)
- Worker misclassification (IRS / DOL enforcement increasing in 2026)
- Limited team integration; cannot easily own multi-quarter strategic work
- Tax 1099 vs W2 complexity if you employ direct contractors
Hidden FTE costs
- Benefits, PTO, equipment, training - all loaded into the 32% rate
- Management time at 1:8 manager-to-IC ratio plus 1:1s and reviews
- Severance risk if priorities shift (typically 2-3 months severance for tech)
- Internal mobility cost when they want to change roles
- Long-tail equity dilution at startup compensation
- Backfill cost when they leave (40% of the original hiring cost)
The hybrid model
For teams with variable demand or large new-product launches, the hybrid model often beats both pure options. Maintain an FTE core that owns the architecture and roadmap; contract for surge capacity around launches or specific projects. Cost optimisation rules:
- Keep 60-70% of headcount as FTE for institutional knowledge and long-arc work.
- Use contractors for time-boxed work with clear deliverables (migration, redesign, feature launch).
- Convert contractors to FTE if performance plus team fit are both strong by month 3-4.
- Track total tech spend (FTE + contractor + agency) as a single budget line. Optimise across channels, not within each.
- Avoid letting contractor headcount exceed 35% of the engineering team. Past that point team cohesion and IP retention degrade noticeably.
FAQ
Is it cheaper to hire a contractor or a full-time engineer?
For under 8-12 months a contractor is usually cheaper after benefits, recruiting, and ramp time. Past that the FTE total cost of ownership is lower. The cleanest approach is contractor-to-hire: 3-6 months as a contractor, then convert if it works. See the calculator for your specific scenario.
What is a typical contractor markup over straight cost?
Contractor agencies typically charge 30-50% markup over what they pay the contractor. A contractor earning $80/hour straight is billed at $115-$120/hour. The markup covers the agency's cost, recruiting, employer-of-record obligations, and margin.
What is a typical contractor-to-hire conversion fee?
Most agencies charge $15,000-$30,000 if you convert a contractor to FTE within 12 months of starting. The fee declines on a sliding scale - typically 100% if converted in month 1, 75% by month 3, 50% by month 6, zero after 12 months.
What about offshore developers?
Offshore rates of $40-$80/hour can win on hourly cost but rarely on total project economics for product engineering. Communication overhead, time-zone friction, knowledge transfer cost, and quality variance eat into the savings. Offshore wins for well-defined component work, plus pure execution against a tight spec.
What is the worker misclassification risk?
If you treat a contractor like an employee (set their hours, supply equipment, embed them in your team for years) the IRS and DOL can reclassify them as W2, forcing you to pay back taxes, benefits, and penalties. The risk is highest for direct-1099 contractors. Using an agency (W2 to the agency) eliminates most of this risk.