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

Heidi L. Masterson

CPA · Heidi L. Masterson, CPA

Seattle, Washington 98103

Heidi L. Masterson, CPA in Seattle, WA

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Heidi L. Masterson, CPA in Seattle · CPA Seek