An EIN identifies a business
An Employer Identification Number is a federal tax identifier for a business. The IRS issues it; an agent can assist with the application. Obtaining an EIN directly from the IRS does not carry an IRS application fee. A provider may charge separately for assistance.
An ITIN identifies an individual for tax purposes
The IRS issues an Individual Taxpayer Identification Number to eligible individuals who need a US tax number for federal tax purposes and are not eligible for a Social Security number. It is not the company’s EIN.
Do you need both?
Not automatically. The IRS provides instructions for responsible parties who do not have, and are ineligible for, an SSN or ITIN. Ask why an ITIN is needed in your particular case instead of assuming every foreign owner must buy both services.
A tax number is not an approval promise
A number alone does not guarantee bank eligibility, seller approval, or a particular tax outcome. Ask the relevant provider what documents and verification it requires. Keep tax identification details private.
Before you request help
Tell your adviser whether the company already exists and whether you already have either identifier. Ask for the specific application purpose, assistance fee, required documents, and expected deliverable in writing.
Official sources
Check the issuing authority for current requirements before you act.