Skip to content

ITIN›Acceptance Agents’ Guide for Individual Taxpayer Identification Number

Exhibit G The Differences Between Responsibilities of an Acceptance Agent and a…

0125 Publ 4520 (PDF) · 2026-10-03 edition · updated 2026-10-04 · United States

Question Acceptance Agent (AA) Certifying Acceptance Agent (CAA)
What is the difference between the
duties of an Acceptance Agent and a
Certifying Acceptance Agent?
An AA can assist alien persons in
obtaining ITINs or EINs from the
IRS, but is not authorized to receive
the ITIN number. The IRS will issue
the assigned number directly to the
applicant.
A CAA can assist alien persons in
obtaining ITINs or EINs from the IRS,
and assumes a greater responsibility in
facilitating the application process. CAAs
are authorized to receive the assigned
ITIN number directly from IRS.
What is the difference between the
role of an Acceptance Agent and
the role of a Certifying Acceptance
Agent?
An AA reviews the required
documentation and forwards the
completed Form W-7 or SS-4,
along with any required supporting
documentation and U.S. Federal
income tax return (if applicable) to
the IRS.
A CAA is authorized to submit a
completed Form W-7 to the IRS on
behalf of an applicant. For Form W-7, the
CAA must attach copies of supporting
documentation for the primary and
secondary (generally) a spouse. For
dependents, CAAs can only authenticate
passports and birth certifcates. Note:
CAAs cannot authenticate foreign military
identifcation cards.
Is there a different application form
for Acceptance Agents vs. Certifying
Acceptance Agents?
The Acceptance Agent would select
the box on the application that reads:
“Acceptance Agent”.
The Acceptance Agent would select the
box on the top of the application that
reads: “Certifying Acceptance Agent”.
Is there a difference between the
Agreements of an Acceptance Agent
and that of a Certifying Acceptance
Agent?
An AA Agreement contains the
terms and scope of the Agent’s
responsibility when assisting Form
W-7/SS-4 applicants.
The CAA agreement contains the terms
and scope of the Agent’s responsibility
when assisting Form W-7 applicants. It
will also include additional information
for the facilitation of the ITIN process
relating to the Agent’s agreeing to verify
documentation, complete a Certifcate
of Accuracy (Form W-7-COA), complete
forensic documentation training, provide
training to their employees and maintain
certain records and information.

46 Acceptance Agents Guide

Get a plain-English answer with a citation back to this text.

Ask AI about this code
▸Contents — 0125 Publ 4520 (PDF)

GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.