Applying to become an e-file provider

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The IRS requires all participants in the electronic filing program to register online with the IRS e-services to receive an Electronic Filing Identification Number (EFIN). To prepare for electronic filing before the tax season begins, you must complete an IRS e-file application by December 1, 2021.

To register, go to the e-file Provider page on

You can also access IRS e-services from within UltraTax CS:

  1. In UltraTax CS, choose Help > Tax Subject Index.
  2. Click the Web Form instructions option.
  3. Highlight the IRS e-services link.
  4. Click Go To.

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