Executive Administrative Assistant - Tax

Ketel Thorstenson, LLP (KT) is seeking an organized and detail-oriented Executive Administrative Assistant to support partners and our Tax team in Rapid City, SD.

In this role, you will provide high-level administrative and workflow support, helping ensure efficient operations, accurate document processing, and exceptional service to both internal teams and clients. You will play a key role in supporting client engagements and coordinating workflow across teams in a fast-paced, professional environment.

If you thrive in a collaborative setting and enjoy managing multiple priorities, we invite you to apply.

Responsibilities include but are not limited to:

• Provide administrative support to partners and team members, including scheduling, coordination, and meeting preparation 
• Manage calendars, appointments, and travel arrangements 
• Prepare and process client documents, including financial statements, tax returns, and engagement letters 
• Support digital workflows, including document processing, e-filing, and file management 
• Track engagement progress, manage deadlines, and support workflow coordination across teams 
• Communicate with clients and internal teams to gather information and provide updates 
• Manage incoming communications, including calls, email, and mail routing 
• Assist with proposal preparation, reporting, and other administrative projects 
• Maintain organized, accurate files and documentation in accordance with firm standards 
• Provide backup support for front desk and administrative team functions as needed 

Required Qualifications:

• High school diploma or GED (Associate’s degree preferred) 
• 3+ years of administrative experience, preferably in a professional services environment 
• Experience with Microsoft Office Suite, including Word, Excel, and Outlook 
• Strong organizational skills and ability to manage multiple priorities
• Valid State Driver's License

Preferred Qualifications:

• Experience in a public accounting or professional services firm 
• Experience supporting multiple professionals or teams 
• Experience with document management systems and digital workflows 
• Strong communication and client service skills

Additional Information

Work Schedule & Location:

• Full-time position
• Standard schedule is 32-40 hours per week (non-peak season)
• Increased hours (up to 55+) required during peak tax season
• Based in Rapid City, SD. Role may require travel as needed.

Compensation & Benefits:
Salary depends on experience and expertise. Compensation includes a comprehensive benefits package.

Featured Benefits Include:

• Paid Time Off and Holiday
• Paid Parental Leave
• Flexible Work Schedules
• Medical, Dental, Vision, Life, and Disability Coverage
• 401(k) Retirement Plan and Financial Wellness Resources
• Professional Development and Training
• Certification Assistance
• Tuition Reimbursement
• Paid Volunteer Time and Community Involvement Opportunities

Company Info

Ketel Thorstenson, LLP is a full-service accounting and consulting firm established in 1936. With offices across South Dakota and Wyoming, and a team with over 25 partners and 50+ CPAs, KT serves a diverse client base across a wide range of industries—from closely held businesses to complex organizations in agriculture, construction, hospitality, nonprofit, government, and beyond.

We’re more than a traditional accounting firm—we’re a team that values relationships, innovation, and impact. At KT, you’ll find a collaborative, growth-focused environment where your ideas are welcomed, your contributions matter, and your career can evolve alongside the clients and communities we serve.