Your Tax Leadership Pipeline Is Probably Thinner than You Think
Most Heads of Tax know succession planning matters.
Far fewer realize how compressed the timeline has become.
Boomer retirements are accelerating. Older Gen X leaders are moving retirement plans forward. And the next generation of successors is not fully prepared at scale.
The result is a growing leadership gap that many organizations still underestimate.
As recent TaxSearch analysis notes, nearly 2,900 boomer Heads of Tax and #2 leaders are likely to retire within five years .
The issue is no longer theoretical. It is operational.
The Problem Is Not Intelligence: It Is Breadth.
Most successor candidates are technically capable.
What many lack is enterprise breadth.
Over the last two decades, tax careers have become increasingly specialized:
- Provision
- Compliance
- Planning
- Controversy
- Policy
Professionals often build depth in one lane without gaining exposure to the others.
That specialization creates efficiency. It also creates succession risk.
Because modern Heads of Tax are not evaluated solely on technical expertise anymore. They are expected to:
- Lead cross-functional initiatives
- Communicate with boards and CFOs
- Navigate ERP and AI-driven transformations
- Translate technical positions into enterprise decisions
That requires broader development much earlier in a career.
Why Waiting No Longer Works
Historically, organizations could allow leadership development to happen gradually.
That model depended on:
- Longer executive tenures
- Slower turnover
- More time for grooming successors
Those conditions no longer exist.
Today:
- Leadership exits are accelerating
- Tax functions are becoming more complex
- Spin-offs and restructuring are increasing demand for tax leaders
Organizations that rely on “natural progression” are increasingly finding themselves forced into reactive hiring.
The Readiness Gap
Many potential successors look qualified on paper.
But readiness is not the same as eligibility.
The biggest gaps tend to appear in:
1. Cross-Functional Leadership
Can the individual partner effectively with:
- FP&A
- Treasury
- Legal
- Operations
- HR
2. Executive Communication
Can they explain tax implications clearly to:
- CFOs
- Boards
- Investors
- Non-tax stakeholders
3. Judgment Under Ambiguity
Can they make decisions when:
- Rules are unclear
- Trade-offs are imperfect
- Reputational considerations matter as much as technical accuracy
These are leadership muscles. And they are rarely developed accidentally.
What Strong Tax Departments Are Doing Now
The organizations responding most effectively are accelerating development intentionally.
That includes:
Structured Rotations
Moving future leaders across:
- Planning
- Compliance
- Controversy
- Operations
- Policy
Earlier Stretch Assignments
Giving high-potential leaders exposure to:
- ERP initiatives
- Cross-functional projects
- Executive-level presentations
Earlier than prior generations typically received.
Leadership Development Alongside Technical Growth
Teaching:
- Influence
- Communication
- Enterprise framing
- Stakeholder management
At the same time technical expertise develops.
Why Interim Support Matters More Than Ever
One overlooked challenge in succession planning is capacity.
Most tax teams are already overloaded.
That makes it difficult to create the rotational and developmental opportunities future leaders need.
This is where interim and fractional support can play a strategic role.
Temporary coverage can create space for:
- Rotations
- Stretch assignments
- Leadership exposure
Without jeopardizing execution during peak cycles.
The Need for Development
The tax leadership shortage is not simply a hiring problem.
It is a development problem.
Organizations that broaden and accelerate leaders intentionally will preserve continuity and stability.
Those that wait for successors to “naturally emerge” may find the bench far thinner than expected. Because in today’s environment, technical expertise alone is not enough to prepare the next Head of Tax.

