Most founders don't actually compare these two options on paper — they go with whichever one feels less risky in the moment. A full-time hire feels "real" and permanent. A fractional partner feels like a stopgap. But when you actually run the numbers, the comparison usually isn't close, especially in the first 12-18 months. Here's the real math.
The salary line is never the whole story. A US-based executive assistant for an early-stage founder typically runs $55,000–$85,000 base salary depending on city and experience level. But that's just the start.
| Cost component | Typical range |
|---|---|
| Base salary | $55,000–$85,000/yr |
| Payroll tax + benefits (≈25-30%) | $14,000–$25,000/yr |
| Equipment, software seats, tools | $1,500–$3,000/yr |
| Recruiting cost (agency or time-cost) | $5,000–$15,000 one-time |
| Ramp time (60-90 days at reduced output) | 2-3 months of partial productivity |
| Realistic all-in first-year cost | $80,000–$130,000+ |
And there's a cost that never shows up on a spreadsheet: your own time spent managing them. A junior or even mid-level EA still needs direction, feedback loops, and oversight — especially in the first few months. For a founder, that's some of the most expensive time in the company.
A fractional operations partner — particularly one running AI-augmented workflows rather than purely manual labor — typically runs $1,500–$4,000/month depending on scope, which lands at $18,000–$48,000/year. No payroll tax, no benefits, no equipment spend, no recruiting fee.
The bigger difference is ramp time. Because the systems (inbox triage rules, calendar logic, meeting-to-task routing) are templated and AI-assisted rather than built from scratch by a new hire learning your business, a fractional partner is typically operating at near-full effectiveness within the first 1-2 weeks, not the first 1-2 quarters.
This isn't a universal "fractional always wins" argument. A full-time hire makes more sense once you have:
In practice, most founders and small agency owners don't actually need 40 hours/week of administrative support — they need their highest-leverage 10-15 hours/week handled cleanly. That's exactly the gap a fractional model is built for. The crossover to full-time generally happens once you're consistently generating enough delegable work to fill a 35-40 hour week and you have the management bandwidth to support a direct report well — both of which are later-stage problems for most early companies.
A full-time EA costs roughly 3-5x more than a fractional AI-augmented partner in year one once you include the hidden costs — and ramps slower while you're paying full price the whole time.
If you're a founder, agency owner, or investor drowning in inbox and calendar noise but not sure you're ready for (or need) a full-time hire, a fractional model is usually the lower-risk way to test what delegation actually buys you back — before committing to a six-figure annual cost.
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