Assistant Controller Job Description

 

Skills, Responsibilities, and What Employers Need to Know

The Assistant Controller is where deep technical accounting expertise starts converting into organizational leadership today, supporting the Controller across close, reporting, and controls while stepping in when needed. This guide explains what an Assistant Controller oversees, the experience and skills the role demands, and how the position is evolving toward the controller path.

In larger organizations, an effective Assistant Controller is expected to combine strong technical judgment with the ability to lead accounting managers and represent the function in front of auditors and executive stakeholders. This guide is built for hiring managers and accounting leaders planning their next step.

What Does An Assistant Controller Do?

An Assistant Controller supports the controller in overseeing accounting operations, often owning the close process, financial reporting, or specific technical accounting areas, and stepping in for the controller as needed.

Today's Assistant Controller increasingly operates as a direct extension of the Controller's strategic responsibilities — owning technical accounting judgment calls, supervising accounting managers, and building the controls and reporting maturity a growing organization needs.

Education & Background Requirements

Employers hiring for Assistant Controller roles typically look for:

• Bachelor's degree in accounting required; CPA license strongly preferred
• 7-10 years of progressive accounting experience, including supervisory experience
• Strong technical accounting knowledge (GAAP, internal controls)
• Experience managing external audit relationships and evaluating close-automation and reporting technology

Essential Skills & Competencies

Financial Leadership

• Ownership of segments of the close process and financial statement preparation
• Deep technical accounting and internal controls expertise
• Deputizing for the Controller on reporting and audit matters

Technical & Analytical Skills

• Reviewing financial statements for accuracy and completeness
• Identifying control weaknesses and process risks
• Evaluating AI-driven close automation tools for accuracy and control impact

Business Partnership

• Managing relationships with external auditors alongside the Controller
• Communicating technical accounting matters to non-technical stakeholders
• Supporting cross-functional initiatives that touch financial reporting

Leadership & Team Development

• Supervising accounting managers and senior accounting staff
• Guiding the accounting team's adoption of new technology
• Building bench strength for future accounting leadership roles

Assistant Controller Roles & Responsibilities

Core responsibilities include:

• Support and help oversee the monthly and annual close process
• Review financial statements and supporting schedules
• Manage relationships with external auditors alongside the Controller
• Supervise accounting managers and senior accounting staff
• Ensure internal controls are followed and documented
• Step in for the Controller on reporting and operational matters as needed
• Evaluate and help implement close-automation and reporting technology
• Support technical accounting research and documentation of complex positions
• Partner with the Controller on audit readiness and remediation planning
• Contribute to budgeting and forecasting accuracy for the accounting function
• Mentor accounting managers on leadership and technical development
• Support due diligence or reporting for financing or M&A activity as needed

Day-to-Day Duties

A typical day for an Assistant Controller may include:

• Review close deliverables prepared by accounting managers
• Address escalated technical accounting questions
• Coordinate with auditors on testing and documentation
• Meet with the Controller on open reporting items and team priorities
• Evaluate a technology or process change for its control and accuracy impact
• Coach accounting managers on complex issues and career development

The Modern Assistant Controller Landscape

• Close automation is reducing manual reconciliation work, pushing assistant controllers toward controls strategy and audit readiness
• The role is increasingly viewed as a direct proving ground for the controller seat
• Real-time reporting expectations are raising the bar for how quickly the close process needs to move
• Organizations are placing more weight on assistant controllers who can lead technology adoption without weakening controls
• Growing regulatory complexity is putting more emphasis on technical judgment and risk awareness at this level

As close automation reduces manual reconciliation work, assistant controllers are taking on more responsibility for controls strategy, audit readiness, and team leadership — positioning the role as a clear, well-defined stepping stone to controller in today's larger organizations.

Sample Success Metrics

• Close cycle contribution timeliness
• Audit findings and remediation timeliness
• Internal control compliance rate
• Team productivity and development of accounting managers
• Accuracy of financial statements reviewed
• Success rate of technology or process improvements led

 

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