ITIN Application
File US taxes without a Social Security Number
An ITIN lets non-US founders file personal tax returns, claim treaty benefits, and open certain accounts. We handle the IRS-authorized certification process for you.
Apply for an ITINWhat's included
Form W-7 preparation & filing
IRS-authorized document certification
Tax treaty benefit guidance
No need to mail original passports
Application status tracking
Support renewing expired ITINs
How it works
How it works — ITIN Application
Step 1
Share your documents
Passport and supporting identification, verified digitally.
Step 2
We certify & file
Your Form W-7 is certified and submitted to the IRS.
Step 3
IRS reviews your application
Processing typically takes several weeks.
Step 4
Receive your ITIN
Use it to file returns and unlock treaty benefits.
InceptaBiz University
Explore InceptaBiz Uni
Filing as a foreign founder, explained.
ITINs, tax treaties, and what you owe as a non-resident — InceptaBiz Uni covers it in plain language, with a Smart AI CEO standing by for your specific questions.
Ask Smart AI CEO about your specific tax residency situation
PDF guides on treaty benefits by country
Free token coupons to get started
Frequently asked questions
No — as IRS-authorized certifying agents, we verify your documents without you mailing originals.
Non-US individuals who need to file a US tax return but aren’t eligible for an SSN.
Yes, if unused for three consecutive years. We can help renew it when needed.
File your ITIN the right way.
No original passport mailing required.
Apply for an ITIN