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-ohio-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

Karl Stefan Helfrich

CPA, Attorney · Karl S. Helfrich, CPA, LLC

Westlake, Ohio 44145

Karl Stefan Helfrich, CPA, Attorney in Westlake, OH

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Karl Stefan Helfrich, CPA in Westlake · CPA Seek