Fractional CTO vs CTO: what do you need right now?

The short answer

In fractional CTO vs CTO, the difference is commitment. A fractional CTO works part-time, usually for a monthly fee, and suits you when you need good technical judgement but not a full-time leader. A full-time CTO is a salaried leader or a co-founder, and makes sense once technology is a daily, long-term part of the business. Many early startups need neither yet.

Reviewed by Anubhav Gupta, Bespoke Devs · Updated

Fractional CTO vs CTO, side by side

CompareFractional CTOFull-time CTO
TimeA few hours to a few days a weekFull-time
How you payMonthly fee or hourly rateSalary, usually with equity
CommitmentOften easy to endHard to undo
Good atDecisions, reviews, hiring help, investor questionsLeading a team, long-term technical direction
Weak atDaily availability, and writing much of the codeBeing worthwhile when there’s little to lead
Time to startUsually quickOften a long search
Best stageBefore or just after a first version, or between leadersOnce you have a team and steady product work

What a founder needs at each stage

StageWhat you needWho can supply it
Testing an ideaCustomers and a cheap prototypeYou, with an AI builder or no-code tool
Building a first versionA scope, and someone to build itA freelancer or agency. A fractional CTO for a few hours if you can’t judge the work
First paying customersReliability, and quick fixesYour builder on a retainer, or a part-time developer
Hiring your first developersSomeone to interview and set standardsA fractional CTO
Raising a round on technologyA credible technical answer to investorsA fractional CTO now, or a co-founder or CTO if you’re planning long term
A team of several developersDaily leadershipA full-time CTO or head of engineering

How to work out the cost

The fractional CTO vs CTO cost depends on your own numbers. Rates vary widely by country and experience, and we won’t quote a market figure we can’t back up. Ask a few people for their real fractional CTO rates. Here’s how to run the sum, using made-up example numbers.

Fractional: 20 hours a month at $150 an hour is $3,000 a month, or $36,000 a year if you keep them all year. Full-time: a $180,000 salary with an extra 20% for taxes and benefits comes to $216,000 a year, or $18,000 a month, plus equity and a search fee if you use a recruiter.

At those example numbers, the fractional route costs one-sixth as much for about one-eighth of the hours. So the price per hour may well be higher, and you’re paying for a smaller, more flexible commitment. The question is whether you can fill a full-time role with useful work yet.

What fractional CTO services usually cover

Fractional CTO meaning, in plain words: a senior technical person, part-time, on your side. Agree which of these you’re buying.

  • Technical decisionsStack, architecture, what to build and what to buy.
  • Reviewing a supplier’s workReading code from a freelancer or agency, and telling you if it’s sound. Often the most valuable job for a non-technical founder.
  • HiringWriting the job description, then interviewing developers you couldn’t assess yourself.
  • Investor and customer questionsDue diligence, security questionnaires and technical answers.
  • CoachingHelping a senior developer grow into a leadership role.

Which one fits you

Choose a fractional CTO if

  • You’re non-technical and hiring builders
  • You need good decisions a few hours a week
  • You’re preparing for investors
  • You can’t yet fill a full-time role

Choose a full-time CTO if

  • Your product is your long-term edge
  • You have, or are about to hire, a team
  • Technical decisions come up daily
  • You have the funding for it and a long runway

When you need neither, and when we don’t fit

We’re an agency that builds first versions, so weigh our view accordingly.

  • If you have a small, clear scope, you may not need a CTO to get a first version built. A fixed-scope team can make most of those decisions.
  • Don’t give anyone a CTO title or a big equity share just to fill a gap. It’s expensive to reverse. See [technical co-founder vs agency](/saas-mvp-development/technical-cofounder-vs-agency).
  • We aren’t a substitute for a CTO if you need ongoing leadership. We build the product and hand it over, so a fractional CTO is a better fit for that job.

Common questions

  1. They vary too much for one number to be useful, and we don’t have reliable data. Ask three people for quotes on the same scope of work, and compare by hours included.

  2. There’s overlap. A fractional CTO is usually more involved: they join your meetings and own decisions over time. A consultant more often does a defined piece of work.

  3. Sometimes a small share, especially if they take a lower fee. Use a vesting schedule and get advice before you agree.

  4. Yes, and it’s a good use of a few hours, with any supplier, including us.

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