The
Knowledge-Based Authentication
window appears if you are required to verify your identity at the time of signing the document. Enter the required information then select
Submit
.
If the document requires a spouse's signature, your spouse will be required to sign the document by verifying their identity using their own TaxCaddy account or verify using the taxpayer's account. If either the taxpayer or spouse fails the identity verification, both will be required to sign the document manually.
If we can't locate an identity record associated with your information (in this case, you will see the following error message), you should download the document and sign it manually.