1120-US ELF: Error Code F1120S-239-01

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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 Code F1120S-239-01: Filer's TIN and Name Control in the Return Header must match data in the e-File database unless Form 1120S, Item H (2), checkbox "Name Change" is checked.

To resolve this error, verify the following:

If the name control is not being forced and the Employer Identification Number (EIN) is correct, call the IRS Help Desk at (866) 255-0654 and have them verify the client's EIN.

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