Your ITIN without mailing your passport anywhere
As IRS Certifying Acceptance Agents we verify your documents in person. You keep your passport; we keep the paperwork.
- 0
- Documents sent by mail
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- Done for you
- $0
- Consultation fee
- IRS-authorized CAA agents
- Your passport never leaves your hands
- Bilingual support (EN / ES)
- Serving all of the U.S.
Helping people across the country get and renew their ITIN — safely and stress-free.
The risk of doing it alone
Mailing your passport to the IRS isn't your only option.
Without your documents
Applying on your own means mailing your original passport to the IRS — and living without it for weeks, with the risk of it getting lost.
Applications that drag on
An application with errors can take up to 6 months of back-and-forth with the IRS.
Insufficient documentation
If the file doesn't meet the IRS's exact requirements, the application is rejected and you start over.
With a Certifying Acceptance Agent none of that happens: we verify your identity in person, your file goes in right the first time and your passport never travels. That's exactly why we exist.
The DISSAU difference
What is a CAA and why does it matter?
A Certifying Acceptance Agent is authorized by the IRS to verify your identity and certify your documents in the ITIN process. In practice it means three things: your passport is reviewed in person and goes home with you, your W-7 application goes in error-free, and we handle the follow-up with the IRS.
With DISSAU as your CAA
- We certify your passport in person — you mail nothing
- W-7 form prepared and reviewed by specialists
- Direct follow-up of your case with the IRS
- Expired ITIN renewals without starting over


What it's for
One number, many doors opened.
File your taxes
Stay compliant with the IRS even without a Social Security number.
Open bank accounts
Access personal and business accounts in the U.S.
Build credit
Cards and loans that create your financial history.
Formalize your business
Invoice, file and run your company properly.
Claim dependents
Include your family on your return and lower your tax burden.
Get closer to your own home
Some institutions accept the ITIN for mortgages.
How it works
Your ITIN in 3 steps.
- 1
Book your appointment
Free consultation: we review your case and tell you exactly which documents you need.
- 2
We certify and file
We verify your identity, certify your documents and submit your W-7 to the IRS.
- 3
Receive your ITIN
We track the case until your number arrives. You get on with your life.
Frequently asked questions
ITIN doubts? Solved.
Your ITIN, safe and hassle-free.
Book a free consultation: we'll tell you exactly which documents you need and get your application moving.
- Free consultation
- IRS CAA agents
- Bilingual support
- All of the U.S.