Cassie Hartogs

Cassie Hartogs

Tax Office Managing Partner


BDO McLean Office



Executive Summary

Cassie Hartogs is Tax Office Managing Partner (OMP) of BDO’s Greater Washington, DC office. In her current role, she manages over 100 tax professionals and is responsible for leading the tax practice in operations, strategy, recruiting, business development, and professional development. Though her role focuses on leading BDO’s third largest tax practice, Cassie is deeply committed to her team, clients, and community.

Cassie has more than 25 years of experience providing diversified strategic tax planning, tax compliance, and examination services. She has managed numerous multi-entity tax engagements for both large and small S-Corporations, C-Corporations and partnerships, as well as individual clients. Cassie’s particular areas of expertise include; S-Corporation tax planning and consulting, including multi-state issues;  mergers and acquisitions primarily in government contract industries; overall strategic tax planning and advisory services.

In addition to her responsibilities as OMP, Cassie is co-chair of BDO’s Women’s Inclusion which aims to create an environment in which both men and women can thrive, reach their potential and contribute to the success of BDO. In this role, she co-manages the program to make sure it meets its goals and positively impacts the firm and its people.

To recognize Cassie’s dedication to BDO’s core purpose and values, and for exemplifying technical rigor while providing exceptional client service, she was awarded BDO’s prestigious 2019 Seidman Neuhausen award.

Professional Affiliations

American Institute of Certified Public Accountants
Certified Public Accountant
Virginia Society of Certified Public Accountants


B.S., Accounting, West Virginia University

Community Involvement

Treasurer – BRAWS
Volunteer at Wolftrap Animal Rescue