Nelson & Nelson, CPA’s

Established in 1923, Nelson & Nelson, CPA’s is devoted to helping our clients succeed and reach their financial goals.

The firm is located in Sioux Falls, South Dakota, and has clients in more than 25 states and many foreign countries. We maintain our standards of personal service by building genuine long-term relationships with clients. This individualized attention keeps our clients coming back.

Their history:

Nelson & Nelson, CPA’s is the oldest existing accounting firm established in South Dakota and continuing in active business today.

James C. Nelson founded the firm in 1923. James was the father of Wesley C. Nelson and the grandfather of Charles A. Nelson. Wes joined Nelson & Nelson, CPA’s in 1957 after graduating from the University of South Dakota. Charles Nelson graduated from the University of South Dakota and became a partner at the firm in 1984.

Wes and Chuck have upheld the integrity and personal service that James established for the firm more than 85 years ago.


American Institute of CPA’s (AICPA), South Dakota CPA Society, South Dakota Estate Planning Council, AICPA Tax Section, National Association of Tax Professionals, National Society of Tax Professionals, Siouxland Chapter of the American Payroll Association, Accountants World, Sioux Falls Chamber of Commerce, and Air Force Association.

Website Address
Phone Number
(605) 336-1988
Fax Number
(605) 336-1054
Physical Address
1701 S. Minnesota Ave.
Sioux Falls, SD 57105
ZIP Code

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