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

Deborah Wisnowski Knudsen

CPA, Attorney · Deloitte Tax LLP

Alexandria, Virginia 22304

Deborah Wisnowski Knudsen, CPA, Attorney in Alexandria, VA

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Deborah Wisnowski Knudsen, CPA in Alexandria · CPA Seek