JOB DETAILS

Executive Administrative Assistant - Tax

CompanyKetel Thorstenson
LocationRapid City
Work ModeOn Site
PostedJune 4, 2026
About The Company
Ketel Thorstenson, LLP, is a full-service accounting firm rich in history, serving clients since 1936. Ketel Thorstenson has 25 partners and over 50 CPAs, with offices in Rapid City and Spearfish, SD, and Gillette and Casper, WY. The firm offers a variety of accounting and advisory services, specializing in construction, hospitality, agriculture, estate planning, government, and nonprofit industries. For more information about KT and its services, visit www.ktllp.cpa.
About the Role

Description

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 

Requirements

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.

Key Skills
Calendar ManagementTravel CoordinationDocument ProcessingE-filingWorkflow CoordinationClient CommunicationMicrosoft WordMicrosoft ExcelMicrosoft OutlookFile ManagementMeeting PreparationAdministrative Support
Categories
AdministrativeFinance & AccountingConsulting
Benefits
Paid Time OffHolidayPaid Parental LeaveFlexible Work SchedulesMedical CoverageDental CoverageVision CoverageLife CoverageDisability Coverage401(k) Retirement PlanFinancial Wellness ResourcesProfessional Development and TrainingCertification AssistanceTuition ReimbursementPaid Volunteer Time
Job Information
📋Core Responsibilities
Provide high-level administrative and workflow support to partners and the tax team, including calendar management and travel arrangements. Manage the processing of client documents, tax returns, and digital workflows to ensure efficient operations.
📋Job Type
full time
📊Experience Level
2-5
💼Company Size
134
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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