Stephanie Mangin

Stephanie Leduc: Senior Manager


Stephanie is a senior manager with our Accounting & Assurance team. She has over 8 years of experience, many of those working with financial statement audits, reviews and compilations. Stephanie ia a CPA and earned her degree at Augustana University in Sioux Falls, SD.


What’s your favorite number?

What would you be doing if you weren’t an accountant?
I would be a therapist. I have always been really interested in psychology.

What’s your current goal outside of Copeland Buhl?
I would like to complete a half marathon, and then maybe a full marathon one day!

Areas of Focus (Services)

  • Financial Statement Audits
  • Financial Statement Compilations
  • Financial Statement Reviews

Areas of Focus (Industries)

  • Manufacturing and Distribution Companies
Stephanie Mangin
  • Recent Articles
  • 8/11/2023

    2023 Form 5500 Participant Count Changes

    Form 5500 is used to meet the annual reporting requirements for employer sponsored retirement plans. On February 23, 2023, the Department of Labor (DOL) released details on changes to the 2023 Form 5500. Possibly the most significant change to the...
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  • 7/12/2023

    Secure Act 2.0 and Your 401(k) Plan

    The SECURE 2.0 Act (Secure 2.0) was signed into law on December 29, 2022 by President Biden. With the law comes several important changes to employee benefit plans, including 401(k) plans. Below are the top 4 items that will impact...
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