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Ron Detweiler, CPA, CSASenior Tax Manager


Ron has more than 40 years of experience providing accounting, tax, business, financial and advisory client services. He began his career at a local CPA firm, later founding his own CPA firm, while also working as a group leader for a public company. For 17 years he served in management roles as region director and managing principal for two national firms and also served concurrent positions as a trusted tax, business and financial advisor. He joined corporate H&R Block in 2005, and in 2012, Ron and his firm, Detweiler & Associates CPAs LLC, joined the HK family as part of the Hiawatha branch.


Individual and business preparation and compliance; small business consulting and services IRS/state representation; accounting and payroll tax services; financial and investment planning; and retirement planning

Education & credentials

B.A. in accounting, University of Iowa, Iowa City, Iowa
Certified Public Accountant (CPA)
Certified Senior Advisor (CSA®)

Professional affiliations

American Institute of Certified Public Accountants (AICPA)
Iowa Society of Certified Public Accountants (ISCPA)

Community involvement

National Czech & Slovak Museum & Library, Treasurer/Board of Trustees Member
Marion Columbus Club, Treasurer
Ecumenical Community Center Foundation (Helping Hands and Compu-Place), Board Member/Treasurer
American Legion #298, Member
Fraternal Order of Eagles, Member
Knights of Columbus, Member of the 4th Degree
St. Joseph Catholic Church, Volunteer/Member of Hand Bell Choir
Xavier High School Foundation Annual Parish Appeal, Past Chair

Family life & hobbies

Ron and his wife, Peggy, have three children, Benjamin, Krystal and Ellie. He is a certified scuba diver and enjoys the outdoors.

Thought leadership
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