How do I obtain a tax id number for a revocable living trust?

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"how do I obtain a tax id number for a revocable living trust?"

You can obtain a "tax id number" (EIN) online at the link below. 

https://www.irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-n...

Note that revocable living trusts generally do not need an EIN. 

See https://www.irs-ein-tax-id.com/learn/faq/trust-need-tax-id-number/

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I am the grantor of my own Living/Revocable trust. The IRS has never questioned the use of my Social Security number for the Employer ID number, but, for some reason Turbo Tax software does not allow you to E-File if you use your social security number as the employer ID number. I wish Turbo Tax would fix this. I'm getting tired of filing by mail. I checked the IRS website and there doesn't seem to be any easy way to get a Tax ID number without getting a form to fill out and mail in to them.  https://www.vjrussolaw.com/what-is-my-trust-identification-number-and-why-would-i-need-an-employer-identification-number-ein-for-my-trust/ 

You can apply for an EIN for your trust on line.

Apply for an EIN Online