According to the IRS, they expect almost 2 million taxpayers’ ITINs to expire December 31, 2019. They are encouraging them to renew as soon as possible and also sending a CP-48 Notice, You Must Renew Your Individual Taxpayer Identification Number (ITIN) to File Your U.S. Tax Return.
Taxpayers who submit their tax return and have expired ITINs will not receive certain tax credits and any exemptions will be disallowed until they renew their ITIN.
As an employer, you may want to notify your employees to renew their ITIN as soon as possible. They will need to complete a Form W-7, Application for IRS Individual Taxpayer Identification Number. The form and instructions may be found on the IRS website. The Form W-7 is located at https://www.irs.gov/forms-pubs/about-form-w-7, and the Instructions are found at https://www.irs.gov/pub/irs-pdf/iw7a.pdf.
Direct employees to this IRS page for details, forms, resources and assistance: https://www.irs.gov/newsroom/taxpayers-with-expiring-itins-should-renew-them-now.