The ROI of an Executive Assistant: How to Calculate What Not Delegating Costs You

Every founder knows they should delegate more. Few have put a number on what it costs them not to. Without that number, an executive assistant looks like an expense rather than an investment, and the decision keeps getting postponed.

This guide gives you a simple method to calculate the return on an executive assistant, with three worked examples, and it's honest about where the maths breaks down.

The 4-Step ROI Calculation

Step 1: Put a value on your hour

There are two common ways to do this:

Your cost: your annual salary plus benefits, divided by about 2,000 working hours. This is the minimum value of your time.
Your value: what an hour of your best work is worth to the business, such as closing a deal, a fundraising meeting or a key hire. For most founders this is several times their salary rate.

Use the first if you want a conservative number and the second if you want a realistic one.

Step 2: Count your delegatable hours

Estimate how many hours a week you spend on work that doesn't need your judgment: scheduling, inbox, meeting preparation, travel, expenses, research, formatting and follow-ups. Our 15-minute test helps you work it out. Most founders land between 10 and 20 hours.

Step 3: Apply a realistic conversion rate

Not every hour you free up turns into high-value work. Some becomes rest, some goes into meetings, and that's fine. A conservative assumption is that half the freed hours go into work that creates real value.

Step 4: Compare against the cost

Multiply your hourly value by your converted hours, then compare the result with the monthly cost of an assistant. A dedicated full-time remote executive assistant typically costs $1,300-$3,000 a month; see how much a virtual executive assistant costs for the full breakdown.

The formula:

Monthly value = hourly value × delegatable hours per week × 50% × 4.3 weeks

Three Worked Examples

All three use a full-time remote executive assistant at $2,500 a month.

	Seed-stage founder	Series A CEO	Agency owner
Hourly value	$100	$250	$200 (billing rate)
Delegatable hours per week	12	18	15
Converted hours (50%)	6	9	7.5
Monthly value created	$2,580	$9,675	$6,450
Monthly cost	$2,500	$2,500	$2,500
Return	Roughly break-even	3.9x	2.6x

The seed-stage founder

At $100 an hour and 12 delegatable hours, the assistant roughly pays for itself on the conservative method. The decision then depends on what the founder does with the freed time. If those six hours a week go into selling or fundraising, the real return is far higher. A part-time assistant is also an option at this stage.

The Series A CEO

With more meetings, investors and hiring, the delegatable hours grow and so does the value of the CEO's time. Even with only half the hours converted, the assistant returns almost four times its cost.

The agency owner

For anyone who bills for their time, the calculation is direct: every hour not spent on admin can be billed. At $200 an hour, 7.5 extra billable hours a week is worth more than $6,000 a month.

The Costs That Don't Show Up in the Maths

The calculation above only counts time. Not delegating has other costs that are harder to measure but often bigger:

Slower decisions. When everything routes through you, the team waits. Every delay compounds across everyone who depends on you.
Dropped balls. Missed follow-ups with investors, candidates or customers cost opportunities you'll never see on a spreadsheet.
Context switching. Moving between strategy and admin all day breaks concentration. The cost isn't the minutes spent on admin; it's the focus you lose around them.
Burnout. Founders who do everything themselves work longer hours for longer, and that rarely ends well for them or the company.
A ceiling on growth. A company can't grow faster than its founder's calendar allows if the founder is the bottleneck.

When the Maths Doesn't Work

Being honest, an executive assistant isn't always the right investment:

You have fewer than 5 delegatable hours a week. Better tools and templates will do more for less.
You won't actually hand things over. An assistant only creates value if you let go. If you'll keep doing everything yourself, the ROI is zero.
The fit is wrong. A poorly matched assistant can cost you time instead of saving it. We cover this in the real cost of a bad virtual assistant hire.

How to Increase the Return

Delegate the draining work, not just the easy work. Investor updates, hiring logistics and reporting free far more time than booking the odd flight. Use our list of 60 tasks to delegate.
Invest in the first week. A structured handover gets you to full value faster. See our 7-day onboarding plan.
Decide in advance where the time goes. Block the freed hours in your calendar for sales, hiring or strategy, so they don't disappear into more meetings.

Frequently Asked Questions

How do I calculate the ROI of an executive assistant?

Put a value on your hour, estimate the hours a week you could delegate, assume about half of those turn into valuable work, and multiply. Compare the monthly result with the cost of the assistant.

Is an executive assistant worth it for a small business?

Usually, once the owner has 10 or more hours a week of delegatable work. For anyone billing by the hour, even a few hours a week of extra billable time can cover the cost of a remote assistant.

How much time does an executive assistant save?

It depends on how much you hand over. Most founders can delegate 10-20 hours a week of scheduling, email, meeting preparation, travel and admin.

What is the cost of not delegating?

The direct cost is the value of the hours you spend on work someone else could do. The indirect costs are usually bigger: slower decisions, missed opportunities, lost focus and burnout.

Should I start with a part-time or full-time assistant?

If you have 5-15 hours a week to hand over, start part-time. Above 15 hours, a full-time assistant usually gives a better return, because they can take on whole workflows rather than individual tasks.

Want to run the numbers for your own situation? Book a call and we'll work through them with you.