How to build an in-house tax team from scratch
Building an in-house tax team is a transformative step for any organization experiencing growth, complexity, or increasing regulatory pressure. While many companies rely on external advisors in the early stages, there comes a point where internal capability becomes essential, both for financial efficiency and strategic control. Whether your company is expanding internationally, navigating rapid revenue growth, or entering new product lines, designing a tax function from the ground up requires strategic planning, thoughtful recruitment, and long-term vision.
This article provides a comprehensive framework for assembling a high performing in-house tax team from scratch, covering everything from defining the scope of the function to selecting technology, structuring reporting lines, and cultivating a future ready operating model.
Understand why you need an in-house tax team
Before taking any practical steps, you need clarity on why you’re building internal capability. Common drivers include:
- Increasing complexity of operations: expansion across borders introduces new corporate tax, sales & use tax, VAT/GST, transfer pricing, and regulatory challenges
- Rising compliance risk: as organizations scale, reliance on ad hoc external support becomes insufficient to maintain control and audit readiness
- Cost efficiency: external advisors can become expensive for routine, repeatable processes that can be managed internally
- Strategic insight: tax plays a critical role in investment decisions, supply chain design, M&A, and product pricing, all areas where internal embedded experts add value
- Data and process ownership: internal teams can establish consistent tax governance, documentation, and reporting standards
Having a clear rationale helps you define the structure, seniority, and skills needed for the team.
Define the scope of your tax function
A tax team can perform a wide range of responsibilities. Defining the scope early ensures you hire the right people and invest in the right systems. Typical areas include:
Core compliance
- Corporate income tax filings
- Indirect tax returns
- Payroll tax compliance
- Local reporting obligations
Advisory and planning
- Corporate structuring
- Transfer pricing strategy
- Tax implications of commercial deals
- Expansion planning
Governance and risk
- Tax accounting and provision
- Documentation for audits
- Policies and internal controls
- Managing tax risks across jurisdictions
Operational support
- Reviewing commercial contracts
- Supporting procurement on indirect tax treatment
- Helping finance teams with reconciliation and reporting
Technology and data ownership
- Managing tax engines, ERP tax configurations, and compliance tools
- Standardizing tax data flows
Not every company needs all of these from day one. Start with what is “business critical” and build from there.
Choose the right operating model
A central decision involves determining what will be done internally and what will remain outsourced. Very large or highly complex businesses may choose to centralize most tax activities within their own team. This offers maximum control and deep institutional knowledge but requires higher investment and a larger staff.
Most organizations adopt a hybrid model, where key strategic activities, such as tax accounting, indirect tax oversight, and advisory work, are kept in-house, while routine or highly specialized compliance tasks remain outsourced. This approach balances cost efficiency with operational control. For early-stage tax teams, a lean oversight model can make sense. In this scenario, a single senior tax professional manages global compliance through external advisors while building the framework for future expansion.
Selecting an operating model early on helps clarify hiring needs and budget priorities.
Determine the structure of the tax department
A functional structure evolves as the organization grows. Here’s a typical progression:
Stage 1: foundational hire
- Head of tax or senior tax manager
This person creates the tax strategy, oversees compliance, manages advisors, and builds the team.
Stage 2: Core compliance capability
Add:
- Tax manager or direct tax specialist
- Indirect tax manager/analyst
These roles stabilize compliance and manage day-to-day processes.
Stage 3: Specialist expansion
As complexity increases, introduce:
- Transfer pricing manager
- Tax reporting and accounting specialist
- Tax technology analyst
Stage 4: Global function
For multinational organizations:
- Regional leads
- In-house counsel specializing in tax
- Governance and risk professionals
Your initial structure should aim for agility, but with clear thinking about the long-term vision.
Recruit the right people
Hiring is one of the most important aspects of building an in-house tax team. Technical expertise is important, but it is not enough on its own. Tax teams operate across the entire organization, so the ideal candidates must be effective communicators who can explain complex topics to non-specialists, influence stakeholders, and work collaboratively across departments.
A strong commercial mindset is equally important. Tax professionals must understand how the business operates, how decisions are made, and where risks or opportunities may arise. They should be proactive, curious, and comfortable with ambiguity, particularly in fast-growing companies where processes may still be evolving. Experience with relevant systems and data tools is also valuable, as tax increasingly depends on strong technology integration.
Organizations often find their best candidates from public accounting firms, especially the Big Four, or from industry roles in similar sectors. Recruiting through specialized tax agencies can also help identify talent with niche expertise.
Establish tax governance and risk management early
Clear governance underpins a strong tax function. Even at an early stage, organizations benefit from creating formal policies that define how tax decisions are made, how documentation is maintained, and how risks are managed. These policies help streamline internal communication, reduce operational inconsistencies, and prepare the business for audits.
A tax risk register is a useful tool for identifying and monitoring potential areas of exposure. By assessing the likelihood and impact of different risks, the tax team can prioritize remediation efforts and keep leadership informed. Process documentation is equally important. Documenting workflows, responsibilities, and approval procedures makes operations more reliable and supports continuity as the team grows.
Implement the right technology
Tax technology plays a major role in the effectiveness of a modern tax function. Early on, the focus may be on ensuring the organization’s ERP system is configured correctly for tax requirements. As the business grows, indirect tax engines, compliance tools, workflow systems, and analytics platforms become increasingly valuable. These tools improve accuracy, reduce manual effort, and create a clear audit trail.
Ideally, technology decisions are made with scalability in mind. Investing thoughtfully at the beginning can save significant time and cost later, especially if the business is expanding across jurisdictions or dealing with high transaction volumes.
Define interfaces with other teams
Tax does not operate in isolation. Workflows should be tightly connected with:
Finance
- Month-end reporting
- Closing processes
- Reconciliation of tax balances
Legal
- Corporate structure
- Contract reviews
- M&A
Procurement
- Supplier onboarding
- Indirect tax validation
Product and commercial teams
- Pricing strategies
- Cross-border sales rules
- Customer contracts
Clear responsibilities and approval procedures prevent tax issues from being discovered too late.
Build strong relationships with external advisors
Even a mature in-house tax team benefits from external advisors. Specialized technical issues, transfer pricing documentation, and global compliance filings often require outside support. Building collaborative, long-term relationships with advisors helps align external efforts with the company’s internal strategy. Transparency, clear scopes of work, and regular communication help ensure advisors truly function as an extension of the team.
Create a roadmap for growth
Building a tax team is not a one-time project; it is an ongoing evolution. A clear roadmap helps articulate priorities and ensures the team develops proportionately with the business.
Short-term efforts must focus on establishing internal leadership, stabilizing compliance, putting proper controls in place, and identifying gaps in data or system configurations. Medium-term goals involve adding specialist roles, automating manual processes, improving forecasting, and strengthening transfer pricing models. Long-term objectives include building a global operating model, advancing tax planning capabilities, and using analytics to provide deeper insight for strategic decisions.
A documented roadmap sets expectations for stakeholders and ensures tax remains aligned with broader organizational strategy.
Foster a culture of continuous learning
Tax rules, technologies, and industry practices evolve quickly. A high-performing tax team embraces continuous learning by engaging in training, participating in professional organizations, sharing knowledge internally, and reviewing processes regularly. Encouraging curiosity and development helps the team stay ahead of regulatory changes and deliver consistent value.
Let Brewer Morris help you build out your tax team
Building an in-house tax team from scratch is a strategic investment that pays dividends in compliance, efficiency, and long-term value creation. The key is to start with a clear purpose, create a scalable structure, hire people with the right blend of technical and commercial skills, and support them with governance, technology, and cross functional alignment.
As your organization grows, the tax team becomes not just a compliance function, but a strategic partner, guiding decision-making, shaping commercial strategy, and safeguarding the business against risk. With thoughtful planning and execution, your in-house tax function can become a powerful and future-ready asset.
