Full Time vs Part Time Executive Assistant for Consulting & Professional Services
One of the most common questions consulting executives face when considering EA support is whether to engage someone full-time or part-time. Both models have genuine advantages and clear limitations. The right choice depends on the volume and nature of your support needs, your working model, your budget, and where you are in the firm’s growth trajectory.
This guide provides a clear framework for making this decision in a consulting context.
Understanding the Core Trade-Off
The fundamental trade-off between full-time and part-time EA support is straightforward: full-time provides more capacity and deeper integration at higher cost, while part-time provides sufficient capacity for lower-volume needs at lower cost.
What makes this more complex in consulting is that support needs can vary significantly by period. During a business development sprint or a high-intensity project delivery phase, a CEO may need full-time support. During a lighter period, that same level of support may not be utilized. This variability is one of the strongest arguments for exploring flexible arrangements.
When Full-Time EA Support Makes Sense
High-Volume Roles
If the scope of support needed genuinely fills eight hours per day, a full-time EA is the right model. This is typically the case when:
- The CEO manages multiple active client engagements simultaneously
- Business development is an intensive, ongoing priority
- The CEO travels frequently and has complex logistics needs
- The role includes operational management responsibilities beyond personal executive support
- The CEO’s communication volume (email, calls, stakeholder management) is consistently high
In these scenarios, a part-time EA will consistently be behind. The volume of work exceeds their available hours, creating backlogs and the kind of administrative pressure that negates much of the value of having support in the first place.
Senior-Level, Complex Support Needs
If the CEO’s work involves highly sensitive client relationships, complex international travel, and multi-stakeholder coordination at the highest professional levels, the depth of relationship and institutional knowledge required to provide excellent support benefits from full-time, dedicated engagement.
A part-time EA who is supporting multiple clients or principals cannot develop the same depth of understanding of one principal’s context, preferences, and relationships as someone dedicated to them full-time.
When Integration with Firm Operations Is Essential
If the EA role includes coordination with internal teams, management of firm operations, and participation in leadership meetings, being part of the firm on a full-time basis helps them develop the organizational relationships and understanding that make this coordination effective.
When Part-Time EA Support Makes Sense
Boutique Practices and Independent Consultants
Solo practitioners and small consulting practices often don’t have enough volume to justify full-time EA support but have clear, consistent support needs that benefit from a dedicated assistant.
A boutique strategy advisor who needs 15 to 20 hours per week of support, handling calendar management, travel coordination, client communication follow-up, and BD administration, is a strong candidate for part-time or fractional EA support.
The cost savings relative to full-time hiring are significant, and a well-engaged part-time EA can deliver most of the value without the cost of a full-time employee.
Variable Demand Profiles
Consulting firms with variable support demand, high during proposal cycles and client intensives, lower during quieter periods, often benefit from arrangements that can flex with demand. This might mean a part-time base with surge capacity available during peak periods.
Budget Constraints
For firms in earlier growth stages, a part-time EA enables support at a lower total cost, creating the opportunity to demonstrate ROI before committing to the higher investment of a full-time hire.
The risk is that under-resourced support creates a situation where neither the CEO nor the EA is satisfied with the quality of the arrangement. Part-time can be the right entry point, but it should be revisited as the firm grows.
The Fractional EA Model
Fractional EA services have emerged as a compelling middle ground. These arrangements, typically offered through managed EA platforms, provide access to a dedicated or semi-dedicated assistant for a defined number of hours per week, without the overhead of a traditional employment relationship.
Common fractional models:
- 10 hours per week (approximately $1,500 to $2,500 per month)
- 20 hours per week (approximately $2,500 to $4,000 per month)
- 40 hours per week dedicated (equivalent to full-time, approximately $4,000 to $6,000 per month)
These services typically include backup coverage, management oversight, and the ability to adjust hours as needs change. For consulting firms that want the benefits of professional EA support without the risk of an independent full-time hire, fractional services offer an attractive option.
Cost Comparison
Full-Time In-House EA (Consulting Firm, Major Market)
- Salary: $70,000 to $120,000 annually
- Benefits (healthcare, 401k, PTO): add 20 to 30 percent
- Payroll taxes: add 7 to 10 percent
- Onboarding and recruiting costs: $5,000 to $20,000 one-time
- Total first-year cost: approximately $90,000 to $175,000
Part-Time In-House EA
- Salary (20 hours/week): $35,000 to $60,000 annually
- Benefits (prorated or not provided for part-time in some structures): variable
- Total annual cost: approximately $40,000 to $75,000
Virtual Fractional EA (Platform-Based)
- 10 hours/week: $18,000 to $30,000 annually
- 20 hours/week: $30,000 to $48,000 annually
- 40 hours/week dedicated: $48,000 to $72,000 annually
The platform model typically includes management oversight, quality assurance, and backup coverage, which adds value beyond the raw hourly rate comparison.
Hybrid Approaches
Some consulting firms find that a hybrid approach works best, combining a core part-time or fractional EA arrangement with access to on-demand support for overflow periods.
Another hybrid is a shared EA arrangement where an experienced full-time EA supports two or three senior leaders within the same firm. This works when the leaders’ schedules don’t conflict significantly and the EA has enough capacity to serve each principal effectively.
Questions to Guide Your Decision
To determine which model is right for your situation, work through these questions:
- How many hours per week do I estimate I need EA support? (Audit a typical week if you’re not sure.)
- Does my support need vary significantly by period, or is it relatively consistent?
- Do I need someone to be present in the office, or is remote support sufficient?
- Is budget flexibility available for full-time, or is cost management a primary constraint?
- What is the cost to me of insufficient support in a given week? (The higher this is, the more it justifies full-time capacity.)
For context on what adequate support should cover in a consulting CEO role, see our guide on what an executive assistant does in consulting and professional services.
The Part-Time to Full-Time Progression
Many successful consulting EA relationships begin part-time and evolve toward full-time as the firm grows and the scope of support needs expands. This progression is natural and healthy.
The advantage of starting part-time is that it allows the CEO and EA to develop their working relationship at lower risk. If the chemistry is right and the EA’s capability is strong, transitioning to full-time is straightforward. If the fit isn’t right, the cost of exiting the arrangement is lower.
According to Forbes, many growing professional services firms find that starting with a part-time EA and scaling up is both financially prudent and operationally effective, particularly when the initial arrangement is with a managed EA service that can flex with demand.
For a deeper look at pricing across different models, see our analysis of executive assistant services pricing for consulting and professional services.
Conclusion
The full-time versus part-time decision for consulting EA support comes down to volume, complexity, budget, and growth stage. High-volume, complex consulting leadership roles benefit from full-time dedicated support. Smaller practices and early-stage firms often find that part-time or fractional models deliver strong value at appropriate cost.
The most important thing is to get the right level of support in place and manage the relationship effectively. Whether full-time or part-time, a skilled executive assistant will deliver returns that far exceed their cost in a consulting environment.
Related Reading
For further context, explore Full Time vs Part Time Executive Assistant for Automotive and Full Time vs Part Time Executive Assistant for Construction & Architecture.