June 28, 2021 The Child Tax Credit Update Portal allows you to verify your eligibility for the payments. You can also use the tool to unenroll from receiving the monthly payments if you prefer to receive a lump sum when you file your tax return next year. This secure, password-protected tool is easily accessible using a smart phone or computer with internet connection. To access the portal, you must verify your identity. If you have an existing IRS username or an ID.me account with a verified identity, you can use those accounts to sign in. If you don't have an account, you will be asked to verify your identity using photo identification through ID.me, a trusted third party for the IRS. If you don't have internet access or can't use the online tool, you can unenroll by contacting the IRS at the phone number on your Advance Child Tax Credit Outreach Letter you should have received from the IRS in June. For more information see the Advance Child Tax Credit Payments in 2021 page on IRS.gov.