IRS Form W-7 Instructions

This one-page federal form is relatively straightforward. let’s start at the top.

Top of the W-7 form

At the top of the Form W-7 application, there are a couple of boxes to check.

Application type

On the right-hand side of the form, you’ll check one of two boxes:

For ITIN renewals, then you must complete Line 6e and Line 6f, below. Also, if you’re renewing an ITIN, you must submit a completed original tax return unless one of the exceptions applies.

Reason you’re submitting IRS Form W-7

You must select one of these boxes, even if you are renewing an existing ITIN. If more than one reason applies, then you should select the one that best fits your situation.

Below, we’ll explain each of the available choices and discuss each in a little more depth.

Box (a): Nonresident alien required to get an ITIN to claim tax treaty benefit

Certain nonresident aliens must obtain an ITIN to claim certain tax treaty benefits, even if they don’t have to file a U.S. federal tax return.

If you check this box to claim the benefits of a U.S. income tax treaty with a foreign country, also check Box h, below.

In the blank space next to Box h, enter the appropriate designation for one of the applicable exceptions. Also, enter the name of the treaty country and treaty article number in the appropriate entry spaces below Box h. Attach the required documents under whichever exception applies.

Box (b): Nonresident alien filing a U.S. federal tax return

This category applies to:

If you check Box b, then you must provide a complete foreign address in Line 3, below.

Box (c): U.S. resident alien filing a U.S. federal tax return

A foreign individual might meet the substantial presence test by living in the United States or being present for a minimum number of days.

Substantial presence test

To meet the substantial presence test, a person must meet both of the following criteria: