Get your FREE 26-page

ITIN Application Practitioner Workbook!

No 50-page sales pitch.

Just a resource you can actually use.

Your desk-side guide for preparing stronger ITIN applications.

I created the ITIN Application Practitioner Workbook for tax professionals who want a practical system they can follow from client intake through submission.

Inside you'll find checklists and worksheets covering ITIN eligibility, SSN screening, Form W-7, dependents, supporting documents, the five exceptions, CAA procedures, final quality control, and IRS notices including CP565, CP566, and CP567.

Download it. Print it. Keep it next to you when working on ITIN cases.

ITIN EDUCATION DOESN'T HAVE TO BE COMPLICATED.

My goal is to take complicated IRS procedures and turn them into practical systems you can confidently use with your clients.

As an Enrolled Agent and Certifying Acceptance Agent, I don't want tax professionals simply memorizing which box to check.

Through Chico Taxes LLC and Academia Chico Taxes, I have trained tax professionals in English and Spanish in ITINs, CAA procedures, tax law, tax resolution, due diligence, and other areas of professional tax practice.

I want you to understand why.

No Compromise, Just Maximize.

Make sure you got your FREE workbook.

Start with the free workbook.
Join me for a training.
Bring your questions.
And build your knowledge one case at a time.

  • Tailored training

  • Real life examples

Yenisley Diaz, EA, MST,

NTPI Fellow, CAA, CTRC

Yenisley Díaz is the founder of Chico Taxes LLC and Academia Chico Taxes, and later co-founded Tax Pros & Resolution Training (TPRT) with Teresa. Through these organizations, she is dedicated to transforming the tax industry through education, mentorship, and high-level tax solutions. As an Enrolled Agent, MST, NTPI Fellow, CTRT, CAA, and an official IRS Continuing Education Provider, Yenisley combines strong technical expertise with a deep commitment to the professional growth of her community.

Born in Cuba and proudly bilingual, Yenisley lives in South Carolina with her family. Her life is centered around purpose, faith, and a strong desire to empower others. She enjoys teaching, writing, and creating spaces where tax professionals can grow not only in knowledge, but also in identity, leadership, and spiritual clarity.

What Sets Yenisley Apart?

A warm, direct, and deeply human approach

A unique ability to simplify complex topics and make them easy to understand

A passion for mentoring others as they advance their careers and discover their purpose

100% bilingual service in English and Spanish, serving traditionally underserved communities

A unique integration of technical knowledge, professional excellence, and spiritual foundations

“And whatever you do, do it heartily, as to the Lord and not to men.” — Colossians 3:23

Professional Background & Accomplishments

Master of Science in Taxation (MST)

Recognized as a National Tax Practice Institute Fellow

Educator and creator of multiple professional courses in both English and Spanish, including ITIN, CAA, tax resolution, and Enrolled Agent training

One of only 7 approved providers in the U.S. offering forensic document analysis training for CAAs

Speaker and organizer of the professional event Tax Mob, bringing together nationally recognized experts

Author of educational materials, guides, spiritual books, and technical resources for tax professionals

ARE YOU A CAA—or THINKING ABOUT BECOMING ONE?

Follow these steps to become a Certifying Acceptance Agent

01

Complete ITIN 

Acceptance Agent training

You must complete the mandatory IRS training session designed for ITIN Acceptance Agents. This training covers essential topics such as the ITIN application process, eligibility requirements, proper completion of Form W-7, and how to assist taxpayers who do not qualify for a Social Security number. It also includes guidance on verifying identification documents and understanding your responsibilities as an agent to ensure compliance with IRS standards.  

02

Complete forensic

document training

This training is separate from the general ITIN Acceptance Agent training and focuses on teaching you how to verify and authenticate identification documents submitted by taxpayers. We are IRS approved and you can purchase it here: https://chicotaxesllc.eleapcourses.com

03

Submit your  Certified Acceptance Agent application 

Before you can complete the electronic IRS-Certified acceptance agent application, you must have an IRS e-Services account. Once you have access, log into your account and select Acceptance Agent Application from the menu.

04

Upload CAA documentation

After submitting your application through e‑Services, you should wait approximately 24 hours before using the Document Upload Tool.

LIVE Trainings

UPCOMING ITIN & CAA TRAININGS

Keep learning one topic at a time.

Our training calendar includes practical education for tax professionals covering topics such as:

• ITIN Applications

• Form W-7

• The Five Exceptions

• CAA Training

• CAA Due Diligence

• Dependent Documentation

• Forensic Document Review

• IRS Notices & Rejections

• Real-World ITIN Case Studies

100%

Client Satisfaction

243M

Total Assets Managed

340+

Financial Strategies Delivered

**Be patient while we get the calendar of trainings ready for you.

Don't memorize the W-7.

Understand the WHY behind the W-7.

© 2026 Chico Taxes LLC - All Rights Reserved. Partnering with you on your financial journey with expert advice and tailored solutions.

(803) 648-7336