You have three consecutive years to use your ITIN at least once on a federal tax return—as a filer or as a dependent—before it expires due to non-use.
You can renew your ITIN for free by filling out a Form W-7 and submitting the required documentation. Your W-7 application can be submitted via mail to the IRS, or you can call and make an appointment at a designated IRS Taxpayer Assistance Center.
Here are some helpful answers to some common questions about renewing your ITIN.
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