managed vs fractional executive assistant

Fractional means you get a portion of someone's working week. Fifteen hours, twenty hours, whatever the plan defines. The assistant is usually shared across two or three clients.

What you get. A named person. Continuity of relationship. Someone who learns your business over time and gets better at it. For many founders this is exactly right, and it is the dominant model in the market for good reason.

What you also get, which is less often stated. The knowledge accumulates in that person. Six months in, they are genuinely valuable — and that value is not transferable, because none of it is written down. Your process is your assistant.

And the arithmetic of a shared week. Fractional providers allocate hours, and hours are finite. When two of a shared assistant's three clients have a busy week simultaneously, something moves. Usually the client who complains least.

For the full breakdown of the fractional model, see our fractional executive assistant guide.

Managed means the service is the unit, not the person.

Before work starts, the workflows get mapped and documented — what happens to each type of email, which meetings can be moved and which cannot, how the CRM gets updated and by whom, what gets escalated to you and what never does. Those documents are the product. The people run them.

What changes as a result:

We would rather say this now than three months in.

The work is genuinely one person's. If everything you need handled fits inside one inbox and one calendar and does not touch other systems, documentation is overhead. A good fractional EA will serve you well and cost less.

You want a relationship, not a service. Some founders want a person who knows them, and value that above process resilience. That preference is real and a managed model does not serve it better.

The volume is modest and stable. Managed operations earns its structure when work spans systems, involves multiple people, or cannot pause. Below that threshold you are paying for resilience you do not need yet.

You are early and testing whether delegation works at all. Start smaller. Learn what you actually want handed over. Come back when the shape is clear.

Ask any provider this: what happens to our process if the person handling it leaves next month?

The answers fall into three groups.

"We'd find you a replacement quickly." This is a staffing answer. It solves the vacancy, not the knowledge. You restart the ramp period and rebuild the context.

"Your assistant documents as they go." Better, and worth asking to see. Documentation that is nobody's explicit responsibility tends to be thin by week eight, because the urgent work always wins.

"The workflows are documented before they start, and the backup already knows them." This is the managed answer. It is more work up front, which is why fewer providers do it, and it is the entire difference twelve months later.

There is no wrong answer here; there is a match between the answer and how much continuity your business actually needs. A founder with six emails a day does not need the third answer. A founder whose client relationships run through their inbox does.

The headline numbers usually favour fractional, and the total cost often does not.

Fractional pricing is typically hours-based: a monthly figure for a defined allocation. Managed pricing is scope-based: a monthly figure for a set of outcomes regardless of how long they take.

Three costs that sit outside the fractional invoice:

Your management time. If you are directing, reviewing and correcting, that is unbilled but not free. It is the specific resource you were trying to protect.

The restart. Assistant turnover in this market is real. Each change costs the ramp period again — and in an undocumented arrangement, the ramp is months rather than weeks.

Hour ceilings. When the allocation runs out in a busy week, the work stops or costs extra. Neither appears in the comparison table you used to choose.

For full figures across both models, see our executive assistant cost guide.