Professional Income Tax & Accounting Service Inc.

Public-record details

Address

17n550 Widmayer Rd, Hampshire, IL 60140

Phone

(847) 683-7847

Listed under

AFSP participants

Credential in IRS file

Enrolled Agent (EA)

Individual

William a Sebastiano

Business name (DBA)

Professional Income Tax & Accounting Service Inc.

Annual Filing Season Program

Participant (as filed)

Listed with the Enrolled Agent credential in the IRS return preparer FOIA file (downloaded 2026-10-02). Source: IRS return preparer office FOIA file (record). Data as of 2026-10-02.

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Check it yourself

• IRS Directory of Federal Tax Return Preparers — search by name or ZIP for preparers with credentials or AFSP.
• IRS: verify a tax professional's credentials.

Shown as published in the IRS file on 2026-10-02. The file does not say whether a credential is currently in good standing, so confirm with the IRS directory before you hire. We do not rate preparers.