1040-US ELF: Error Code F1040-512

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MFA required for electronic filing

Effective May 3rd, the 2017 version of UltraTax CS requires multi-factor authentication (MFA) to access the electronic filing transmission feature in CS Connect.

Thomson Reuters is committed to proactively evolving our security features to help you protect your firm and your clients' data. For more information about multi-factor authentication, see Multi-factor authentication overview.

Error Reject Code F1040-512: Each Dependent's SSN on this return cannot be used on another return as a Primary or Secondary SSN with Line 6a checkbox 'ExemptPrimaryInd' or Line 6b checkbox 'ExemptSpouseInd' checked on that return.

Here is a situation where the dependent was claimed as a dependent on another tax return. Review the following items to resolve the error:

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