Listed as a CPA in IRS public preparer records. Source: IRS PTIN FOIA extract (Feb 2026), retrieved October 23, 2026. https://www.irs.gov/pub/foia/foia-iowa-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

John C Olson

CPA · Kronlage & Olson P.C.

Charles City, Iowa 50616

John C Olson, CPA in Charles City, IA

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John C Olson, CPA in Charles City · CPA Seek