Every estate or trust that is required to file Form 1041 must have an EIN. An EIN may be applied for in any of the following ways:
- Apply through the IRS website here. The EIN will be issued immediately once the application information is validated.
- Apply by phone by calling 1.800.829.4933 between the hours of 7:00 a.m. and 10:00 p.m. in the fiduciary's local time zone.
- Apply by mailing or faxing Form SS-4.
If the estate or trust has not received its EIN by the time the return is due, write 'Applied for' and the date that the fiduciary applied for the EIN in the space for the EIN.