TaxProProofIRS PTIN registry lookup

Tax Preparers in Williamstown, MA

4 tax preparers listed in the IRS Consolidated PTIN List for Williamstown.

Verify a tax preparer's credentials

Confirm PTIN status and credential class with the IRS directly.

IRS Directory of Federal Tax Return Preparers
Data context: Listings come from the IRS Consolidated PTIN List (updated quarterly). PTIN registration is a filing prerequisite — it is not a quality endorsement. Not tax advice.
Browse by type:Enrolled Agent (3)Annual Filing Season Program Participant (1)

Christopher Karampatsos

EAEnrolled Agent
Unlimited IRS rights

Independent

Williamstown, MA

Doris Karampatsos

EAEnrolled Agent
Unlimited IRS rights

Karampatsos Tax Service

Williamstown, MA

(413) 346-3470

Jacob Phillips

EAEnrolled Agent
Unlimited IRS rights

Karampatsos Tax Service

Williamstown, MA

(413) 884-6001

John Sherman

AFSPAnnual Filing Season Program Participant

Independent

Williamstown, MA

4134585592

Tax Preparers in Williamstown, MA — IRS PTIN Registry | TaxProProof | TaxProProof