Full-Time CTO vs Fractional CTO. Which one do you actually need?
A full-time CTO is a $300K-$500K commitment plus equity. A fractional CTO is $5K-$30K per month with no severance risk. Both are right answers — for different stages.
- Honest cost comparison (fully loaded, not just salary)
- Decision framework for stage, team size, and runway
- No pitch — we’ll tell you which path fits
Two Right Answers For Two Different Stages
A full-time CTO and a fractional CTO solve different problems. The right answer depends on your stage, your team, and your runway.
Full-time costs are bigger than the salary number.
$300K-$500K salary, plus 1-5% equity dilution, plus 3-9 month executive search, plus severance risk if it doesn't work out. Total true cost of a CTO mishire can exceed $500K.
Fractional buys you optionality.
$5K-$30K/month, zero equity dilution, decisions starting next week instead of next quarter. Test what good leadership looks like before you commit to a permanent hire — or before you give up on the idea entirely.
The right answer depends on your stage.
Past Series B with 50+ engineers and a multi-year roadmap? Hire full-time. Pre-Series B, regulated industry, or evaluating AI initiatives? Fractional is the safer first move.
The Side-by-Side
The dimensions that matter when you have to pick one.
Two halves of one workflow
Annual Cost (Fully Loaded)
Full-time: $300K-$500K+ salary plus equity, recruiting fees, severance risk. Fractional: $60K-$360K/year depending on engagement model. No equity, no severance.
Time to Start
Full-time: 3-9 month executive search before they even start onboarding. Fractional: days to weeks. Decisions get made in your first week.
Experience Breadth
Full-time: one person, one career arc. Fractional: senior leaders plus a partner network you can pull from for specific challenges.
Risk if It Doesn’t Work Out
Full-time: severance, recruiting cost, lost time, possible equity recovery issues. Fractional: end the engagement. No severance, no hard feelings.
Why Fractional Often Wins for Early-Stage
If you're pre-Series B, in a regulated industry, or testing AI initiatives, fractional is usually the right first move.
You're pre-Series B or bootstrapped, and a $300K+ salary doesn't fit the budget.
You have a small engineering team that needs senior strategic direction, not full-time management.
Your CTO just left and you need stability while you decide what to do next.
You're evaluating AI initiatives and need someone who has actually shipped AI in production.
You're in a regulated industry (healthcare, government, finance) and need compliance expertise without the full-time commitment.
You want to test what good technology leadership looks like before you commit.
Built for early-stage
Built for production
Common questions about the decision
The questions founders and CEOs actually ask us before picking a path. Honest answers, including when fractional is the wrong call.
When does it make sense to hire a full-time CTO instead of a fractional?
Hire full-time when you have 30+ engineers, a multi-year product roadmap, and the runway to absorb a 6-9 month executive search plus a 12-month ramp. If your technology is the product and the CEO is not technical, a full-time CTO also makes sense earlier. The test we use: if a fractional engagement ends and the company cannot function, you needed full-time six months ago.
What does a full-time CTO actually cost when you load in everything?
Base salary for an experienced CTO in the US runs $250K-$400K. Add 20-30% for benefits, payroll taxes, and overhead. Add 1-5% equity dilution, which at a $20M post-money valuation is $200K-$1M of economic cost. Add $50K-$150K in recruiting fees if you use a retained search firm. Fully loaded, year one is typically $450K-$700K before you count the cost of a mishire.
How much equity does a full-time CTO typically expect?
At seed stage, a first CTO joining as a co-founder-equivalent hire can expect 2-5% with standard four-year vesting and a one-year cliff. Post-Series A, the range drops to 0.5-1.5%. Post-Series B, it is usually 0.25-0.75%. Fractional engagements are almost always cash-only with no equity, which is one reason they are attractive before you have priced a round.
What's the productivity tradeoff with a fractional CTO?
A fractional CTO is not in every standup, will not be in the room for every hiring debate, and will not build deep relationships with every engineer the way a full-time leader can. What you get instead is faster access to senior judgment, broader pattern recognition from multiple companies, and decisions made in hours instead of weeks. For early-stage companies the tradeoff usually favors fractional. For scaling organizations past Series B, the daily presence of a full-time leader starts to matter more.
Can a fractional CTO build the team, or do I still need a recruiter?
A good fractional CTO will write the job descriptions, design the interview loop, run technical screens, make the offer decisions, and onboard the first engineers. What they usually do not do is top-of-funnel sourcing at scale. For the first 3-5 engineering hires, a fractional CTO plus your network is often enough. Past that, you will want either an in-house recruiter or a contingent search partner working alongside the fractional.
How do you transition from fractional to full-time without disruption?
Plan the transition from day one of the fractional engagement. Document architecture decisions, hiring criteria, vendor relationships, and open technical debt in a place the incoming full-time CTO can inherit. Overlap the fractional and the full-time for 30-60 days so context transfers directly. We have done this several times and the key is treating the fractional engagement as if a successor is already on the calendar, even before you have started the search.
How is LSA Digital different from a solo fractional CTO or a large consultancy?
A solo fractional CTO gives you one person's experience and one person's availability. A large consultancy gives you pyramid staffing with junior consultants doing most of the work. LSA Digital is a senior-led firm with 25+ years of enterprise IT, direct compliance experience across FedRAMP, HIPAA, and SOC 2, and seven Human-AI products shipped in production. Every engagement is led by senior engineers, and we will tell you honestly when a full-time hire is the right call instead of us.
What we'll cover in 30 minutes
What we'll cover in 30 minutes
Where you actually are in the company stage — pre-Series A, B, scaling, or enterprise.
Real cost comparison: fully loaded full-time CTO vs fractional engagement models.
Risk profile: severance, equity dilution, recruiting timeline, and the cost of getting it wrong.
Honest recommendation — even if the answer is 'hire someone full-time'.
Book a free 30-minute consultation. We'll talk through your situation and tell you honestly which path makes sense — even if it's not us.