Becoming a Certified Acceptance Agent (CAA) is one of the best ways to expand your tax practice and serve clients who need ITINs. The process is straightforward but has specific requirements. This guide walks you through every step — from eligibility to your first day as an active CAA.
IRS Enrolled Agent & Certified Acceptance Agent since 2015. Has processed 2,000+ ITIN applications.
The CAA program is more accessible than many people realize. You don't need to be a CPA or have a degree in accounting. The IRS designed the program to reach a wide range of professionals and organizations who serve immigrant and international communities.
Here's who is eligible to become a CAA:
The key requirement is not your professional background, but your commitment to completing the required training and following IRS procedures. If you regularly work with people who need ITINs, you're likely a good candidate. Learn more about what a Certified Acceptance Agent does.
The CAA application process follows a specific sequence. Here's exactly what you need to do, in order:
Free 1-2 hour online training covering Form W-7 and ITIN procedures
2-3 hour course from an IRS-listed provider on document authentication
Create an account to access the CAA application portal
Complete Form 13551-A online through e-Services
Submit training certificates and supporting documents
IRS processes application and verifies credentials
Receive approval letter and CAA number to start accepting applications
Need help with the requirements? Review the complete IRS CAA requirements for detailed information on each step.
To become a CAA, you must complete two separate training courses. Both are mandatory and each serves a different purpose.
This is the IRS's own training on how to complete Form W-7 and process ITIN applications. It's provided as a free PDF on the IRS website and takes about 1-2 hours to complete. The training covers:
After reviewing the training materials, you'll take a short quiz. Once you pass, you can print your completion certificate.
This training teaches you how to authenticate passports, birth certificates, and other identity documents. It must come from an IRS-approved provider. The course typically takes 2-3 hours and includes:
Learn more about forensic training costs and online training options.
Important: Both certificates are valid for a specific period and must be current when you submit your application. If you complete training but delay your application, you may need to retake the courses.
Here's a realistic timeline for becoming a CAA, from start to finish:
Set aside 4-5 hours to complete both the IRS acceptance agent training and forensic document training. You can do them in any order, but it's best to complete both on the same day while the material is fresh. Download and save both certificates immediately.
Register for IRS e-Services if you haven't already (this can take a few minutes to a day). Then complete Form 13551-A online and upload your training certificates. Double-check all information before submitting. You'll receive a confirmation email immediately.
The IRS reviews applications in the order received. During this time, they verify your training certificates, check your credentials, and review your application for completeness. Most applications are processed within 45-60 days, though some are approved faster.
You'll receive an approval letter via mail and email with your CAA number. This number is unique to you and must be included on all Form W-7 applications you submit. You can begin operations immediately.
These are the most common reasons CAA applications are delayed or rejected. Avoid these pitfalls and your application will move through the system smoothly.
The IRS maintains a specific list of approved forensic training providers. Using a course from an unlisted provider will result in automatic rejection. Always verify the provider is on the current IRS list before purchasing training.
Both training certificates must be current when you submit your application. If your forensic training certificate expired before you applied, you'll need to retake the course. Check expiration dates carefully before submitting.
Missing or incorrect information on Form 13551-A is the most common reason for delays. Double-check your PTIN, EIN, business address, and contact information. Ensure all required fields are filled accurately.
You must have an active IRS e-Services account before you can access the CAA application. Many applicants try to apply first and then realize they need e-Services. Register for e-Services as soon as you complete your training.
The application requires both training certificates and may require additional documentation depending on your entity type. Banks, for example, need to provide proof of FDIC insurance. Review the checklist carefully.
The training itself takes 3-5 hours total (1-2 hours for IRS acceptance agent training, 2-3 hours for forensic training). The IRS application review takes approximately 45-60 days. So from start to finish, expect about 2 months.
No. While many CAAs are tax preparers, CPAs, or Enrolled Agents, the program is open to attorneys, financial institutions, community organizations, and others who serve populations needing ITINs.
If denied, the IRS will explain the reason. Common causes include incomplete documentation, expired certificates, or errors on the application. You can correct the issue and reapply.
No. The IRS does not charge a fee for CAA applications. Your only costs are the forensic document training ($100-$200) and the IRS acceptance agent training (free).
Yes. CAA authorization is federal, not state-specific. You can apply from any U.S. state and serve clients nationwide.
A Certified Acceptance Agent (CAA) is authorized by the IRS to verify identity documents for ITIN applications. Learn what CAAs do, why they matter, and who becomes one.
Read guideThe key difference between a Certified Acceptance Agent (CAA) and an Acceptance Agent (AA): document authentication, client experience, and training requirements.
Read guideCAA forensic training ranges from $100 to $200+. Compare all provider pricing, what's included, and hidden fees to find the best value.
Read guideComplete your training in 2-3 hours. Physical certificate mailed in 5 business days. 100% IRS acceptance guaranteed.
Secure checkout. Certificate mailed in 5 business days.