1040 - US ELF: E-File Form 4868 (Extension) and Mail Payment

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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.

If I e-file my client's federal extension (Form 4868), can he/she send in their payment in the mail?

Yes, if a client wants to mail their payment with a check, they can do so even if they e-file the Federal extension. Per Form 4868 Instructions, "If you e-file Form 4868 and mail a check or money order to the IRS for payment, use a completed paper Form 4868 as a voucher."


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