Accounting Ver06. “Beyond Watchdog”– Why Finance Sits at the Core of Decision-Making in Western Companies

shigenoritanaka3
3月29日
読了時間: 4分

　　　　　　　　　　　　　　　　　　　　　　　　　　　　Mar 29, 2026

■ Introduction

In many Japanese companies, the Finance & Accounting function is often treated as a “watchdog”—a department responsible for accurate bookkeeping and strict internal controls. In contrast, in many Western companies, Finance functions as the central hub of management decision-making.

This difference seems to stem less from culture and more from differences in role definition and organizational structure.

■ Financial Accounting and Management Accounting Serve Fundamentally Different Purposes

It is often said that Financial Accounting and Management Accounting operate with completely different objectives and worldviews.

● Financial Accounting

= For external stakeholders (shareholders, banks, auditors) = Accuracy and compliance are top priority = A “vertical world” where numbers are aligned by period = Essentially the role of a “watchdog”

● Management Accounting

= For internal stakeholders (management, business units) = Supports decision-making, strategy, and improvement = A “horizontal world” where numbers are aligned by project, product, or customer

This structural difference often leads to gaps in numbers and misalignment in decision-making.

This theme has appeared throughout my previous articles:

All of these topics connect back to the fundamental distinction between: Financial Accounting = outward-facing Management Accounting = inward-facing

1. Japanese Finance Functions Tend to Be Overly Focused on Compliance

In many Japanese companies, Finance is heavily consumed by Financial Accounting tasks:

Zero-error culture
Approval workflows
Audit preparation
Internal controls
Tax
Monthly closing

These are all important. However, when too much energy is spent on compliance, the “horizontal numbers” needed for management decisions become weak.

■ Finance Often Cuts Off Its Own Path to Understanding the Business

In addition to vertical role separation, many Finance teams in Japan tend to limit their own role to Financial Accounting only.

For example:

When Finance tries to get involved in order/backlog management, they step back saying, “That’s Sales’ job.”
When Finance tries to join production system requirement discussions, they say, “That’s IT’s area.”
When forecasts or project cost discussions arise, Finance retreats, thinking, “That’s for Corporate Planning or Operations.”

In this way, Finance often defines its own scope too narrowly, which eliminates opportunities to understand the business.

As a result, Finance remains a “department that produces numbers” and unintentionally gives up opportunities to participate in management decisions.

2. Western Finance Functions Often Act as “Business Partners”

In many Western companies, Financial Accounting is streamlined, allowing Finance to function as a true partner to the business:

FP&A
Investment evaluation
Contract term validation
Project review
Cost and cash optimization

For large deals, approvals often involve:

APAC CFO
HQ CFO
LOB CFO
Group CFO

Sales may prepare the proposal, but Controllers and CFOs validate the substance. Finance must understand the business deeply—otherwise they cannot review or approve deals.

This is one reason why CFOs are often regarded as the No.2 executive in Western companies.

3. Many Japanese SMEs Lack a Corporate Planning Function

In many Japanese SMEs, there is no dedicated Corporate Planning team. Investment decisions are made directly by the executive team.

As a result, Finance often becomes a department that “prepares documents” rather than a department that participates in decision-making.

4. My Experience: “Finance Is Too Busy for Management Accounting” Is a Structural Misunderstanding

In my previous role at a Western subsidiary, I served as both President and Controller, handling everything end-to-end:

Cost, inventory, labor, and provision entries
PL/BS reporting
Management Accounting
Management reporting

When I joined, the workload was overwhelming—I often missed the last train home. And I did not have advanced Excel skills like VLOOKUP or Pivot Tables.

But by clarifying the purpose of each report and designing the “blueprint” first, I was able to streamline the work dramatically using only basic Excel functions.

After continuous improvement, by my third year:

Monthly closing took less than one-fifth of the original time— with higher accuracy.

From this experience, I strongly believe:

“Being too busy with Financial Accounting to do Management Accounting” is simply an excuse.

Monthly closing is repetitive—anyone can improve with learning and iteration. If you intentionally improve one part each month, the workload will inevitably shrink. The time saved can then be invested in conversations with management and business leaders to build Management Accounting.

Advanced Excel skills are not required. What matters is design thinking. In the end, it comes down to whether you choose to do it or not.

5. Conclusion: Finance Must Evolve from “Watchdog” to “Business Partner”

In Western companies, Finance often acts as the right hand of the CEO. In Japan, Finance is often confined to compliance, with limited involvement in management.

However, if Financial Accounting is streamlined and resources are shifted toward Management Accounting, Finance can absolutely become a function that drives the business.

And this requires effort from both sides:

Finance must have the desire to understand the business and engage in management
Management must want to involve Finance and leverage financial expertise in decision-making

When these intentions align, Finance can evolve from a “watchdog” to a true business partner, and the quality of decision-making across the company improves dramatically.

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