ITIN application service
Get professional support with Form W-7 preparation, document guidance and a careful application review—designed for international founders and non-U.S. residents.
Start Your ITIN Application
More than a tax number
For an eligible non-U.S. resident, an ITIN creates a recognized U.S. taxpayer identity that can support tax filing and certain financial or platform-verification processes.
Some payment and ecommerce platforms request a personal U.S. taxpayer identification number during tax or identity verification. Depending on the account and applicant, an ITIN may be accepted when the individual is not eligible for an SSN.
When a nonresident individual has a federal tax-filing requirement but is not eligible for an SSN, an ITIN provides the taxpayer identification number used on forms such as Form 1040-NR.
Some U.S. banks request an ITIN as part of their personal identity or tax-verification process, including certain in-branch applications. Requirements vary by bank, account type and applicant.
How it works
A guided process from your first application details to receiving your completed ITIN documents online.
Provide your personal and tax-purpose information through our secure online form.
We prepare the required application paperwork and guide you through the signing and document requirements.
Once issued, your ITIN information and available documents are delivered securely through your online account.
Provide your ITIN when an eligible tax, banking or platform-verification process requests your individual U.S. taxpayer number.
An Individual Taxpayer Identification Number, or ITIN, is a nine-digit tax number issued by the IRS. It is intended for people who need a U.S. taxpayer identification number for federal tax purposes but are not eligible for a Social Security number.
However, Buykii offers a 110% service-fee refund promise. If an eligible and fully compliant application prepared by Buykii is rejected because of an error in our preparation and we cannot resolve the issue, we will refund 110% of the Buykii service fee.
After you submit your information through the Buykii portal, our team reviews it and prepares Form W-7 and the relevant application documents. We then send the documents to you for review and signature. Once we receive the completed signature and required supporting documents, the application package is submitted to the IRS using the appropriate delivery method.
The IRS advises applicants to allow approximately seven weeks to receive an application-status notice. Processing may take nine to eleven weeks during peak tax season or when applying from outside the United States.
PayPal recognizes an ITIN as one type of U.S. Taxpayer Identification Number. If PayPal asks you to provide personal tax information, you may be able to submit your ITIN instead of an SSN, depending on your account and tax status.
Buykii currently does not accept applications from residents of Burundi, the Central African Republic, the Republic of the Congo, the Democratic Republic of the Congo, Iran, Iraq, North Korea, Liberia, Somalia, South Sudan, Sudan, Yemen and Zimbabwe.
Our support team is available to assist you.
Complete our simple application form and let Buykii handle Form W-7 preparation, document preparation and every step of your ITIN application.