The return on investment for an executive assistant in consulting can be calculated. This is not a soft benefit measured in reduced stress or improved quality of life, though those are real. It is a quantifiable business case built on the economics of how a consulting CEO’s time is valued and allocated.
This guide provides the frameworks and calculations that make the ROI of executive assistant support concrete for consulting firm leaders.
The Economics of Consulting CEO Time
The foundation of the ROI calculation is the value of the consulting CEO’s time. This can be measured in several ways:
Effective billing rate: If the CEO bills client time directly, their hourly rate is the clearest measure of the opportunity cost of administrative work. For senior consulting partners and managing directors, billing rates typically range from $250 to $600+ per hour.
Revenue per hour of business development: Even time spent on BD rather than direct billing has a measurable value, derived from the expected revenue per closed engagement and the typical number of BD hours required per close.
Organizational leverage value: The CEO’s value in firm leadership, strategic decisions, and key talent development may not be billable, but it has a compounding impact on firm performance over time.
For ROI purposes, using the billing rate as the baseline time value is the most conservative and most directly defensible approach.
Calculating Baseline Time Savings
The first step is to estimate how many hours per week of the CEO’s time is currently consumed by tasks that can be delegated to an EA.
Common categories and estimated weekly time consumption for a consulting CEO without EA support:
| Task Category | Weekly Hours Without EA Support |
|---|---|
| Calendar management and scheduling | 3 to 5 hours |
| Email triage and communication drafting | 5 to 10 hours |
| Travel planning and logistics | 2 to 5 hours (if frequent travel) |
| Meeting preparation | 2 to 4 hours |
| Document management | 1 to 2 hours |
| Vendor and operational management | 1 to 2 hours |
| Financial administration | 1 to 2 hours |
| Total | 15 to 30 hours |
This range is consistent with productivity research on executive time allocation. A typical consulting CEO without support spends 15 to 30 hours per week on tasks that can be delegated to an EA.
The ROI Calculation: Three Scenarios
Scenario 1: Conservative (15 Hours Recaptured at $300/hour)
- Hours recaptured per week: 15
- CEO effective hourly value: $300
- Weekly value created: $4,500
- Annual value created: $234,000
- EA annual cost (premium virtual, full-time equivalent): $72,000
- Net annual ROI: $162,000 (225%)
Scenario 2: Moderate (20 Hours Recaptured at $350/hour)
- Hours recaptured per week: 20
- CEO effective hourly value: $350
- Weekly value created: $7,000
- Annual value created: $364,000
- EA annual cost (senior in-house): $130,000
- Net annual ROI: $234,000 (180%)
Scenario 3: High-Value (25 Hours Recaptured at $500/hour)
- Hours recaptured per week: 25
- CEO effective hourly value: $500
- Weekly value created: $12,500
- Annual value created: $650,000
- EA annual cost (premium senior): $150,000
- Net annual ROI: $500,000 (333%)
All three scenarios produce strongly positive ROI. Even with conservative assumptions, the case is compelling.
Beyond Time Savings: Additional Value Drivers
The time savings calculation, while powerful, understates the total ROI of executive assistant support. Several additional value drivers compound the returns:
Better-Prepared Client Meetings
When the CEO arrives at client meetings fully briefed and prepared, the quality of those interactions improves. Better client meetings produce higher client satisfaction, stronger relationships, and better retention rates. The financial value of improved client retention over a multi-year engagement is substantial.
More Consistent Business Development
As documented in our overview of consulting EA benefits, BD activity becomes more consistent when an EA manages its administrative dimensions. More consistent BD translates to more predictable pipeline and more closed engagements over time.
Reduced CEO Burnout
Burnout degrades decision quality, relationship quality, and leadership effectiveness. The cognitive load reduction from delegating 15 to 25 hours of administrative work per week measurably improves the CEO’s performance across all other activities. This is difficult to quantify but real.
Faster Response to Opportunities
With an EA managing operational logistics, the consulting CEO can respond faster to business development opportunities, client needs, and strategic decisions. Speed has value in consulting, where prospects often make decisions based on which firm responds most quickly and effectively.
The Payback Period
At what point does the EA investment pay back its cost?
Scenario 1 (Conservative):
- Monthly EA cost: $6,000
- Monthly value created: $19,500
- Payback period: Less than 2 weeks
Scenario 2 (Moderate):
- Monthly EA cost: $10,800
- Monthly value created: $30,333
- Payback period: Less than 2 weeks
In consulting, where billing rates are high and the CEO’s time is directly linked to revenue, the payback period for EA investment is measured in weeks, not months. This is among the fastest payback periods of any operational investment available to consulting firms.
Why CEOs Underestimate the ROI
Several cognitive biases cause consulting CEOs to underestimate EA ROI:
Salience of cost vs. invisibility of opportunity cost. The EA’s monthly fee appears on the P&L. The opportunity cost of the CEO’s time spent on administrative work does not. One is visible and psychologically significant; the other is invisible and tends to be ignored.
Reluctance to measure their own time. Consulting CEOs who carefully track client time and analyze project economics often don’t apply the same rigor to analyzing how their own time is allocated. The ROI calculation requires this measurement.
Underestimating how much time is actually consumed. Most CEOs who haven’t tracked their time systematically underestimate how many hours per week they spend on delegatable tasks. The actual amount is typically higher than they expect.
The Compounding ROI Over Time
EA ROI is not static. As the relationship matures, the EA develops deeper institutional knowledge and more accurate anticipation of the CEO’s needs. The quality of support improves, the amount of CEO oversight required decreases, and the time savings increase. Over a two to three year relationship with a skilled dedicated EA, the annual return typically grows 20 to 40 percent relative to the first-year baseline.
This compounding effect makes long-term dedicated EA relationships significantly more valuable than the first-year ROI calculation alone suggests.
Building Your Own ROI Calculation
To make this calculation specific to your consulting firm:
- Estimate your effective hourly value: Use your billing rate or an estimate of the revenue generated per hour of BD activity.
- Audit your current administrative time: Track your time for one week, categorizing every activity. Identify what is delegatable.
- Apply your hourly value to the delegatable hours: This is the annual opportunity cost of not having EA support.
- Compare to EA service costs: See the pricing ranges in consulting EA pricing.
- Add qualitative value: Estimate the value of improved client meeting quality, more consistent BD, and reduced burnout.
The resulting calculation will almost certainly produce a compelling case for investment.
According to Harvard Business Review, CEOs who manage time effectively through structured support are able to allocate a higher proportion of their time to the high-value activities that drive firm performance. The executive assistant is the primary structural mechanism for achieving this allocation.
Conclusion
The ROI of an executive assistant for consulting CEOs is calculable, consistent, and substantial. Recaptured time, valued at consulting billing rates, produces returns that dwarf the cost of EA support in every reasonable scenario. When additional value drivers are included, such as improved client relationships, more consistent BD, and reduced burnout, the case becomes even stronger.
The question consulting CEOs should be asking is not whether an executive assistant produces positive ROI. The evidence is clear that it does. The question is how quickly they can deploy the right support and begin capturing the returns.
Related Reading
For further context, explore Executive Assistant ROI for Automotive CEOs and Executive Assistant ROI for Construction CEOs.