Obtain a Tax ID or Employer Identification Number (EIN) for a Delaware Company

Obtain a Tax ID for an existing company Form a Company and Obtain a Tax ID

After forming a Delaware corporation or LLC, the next step is to obtain a Federal Tax ID Number (also known as an Employer Identification Number or EIN).

Think of the EIN as the social security number for your company. It is a nine digit number that is issued by the IRS (for example, 01-2345678).

Just as a social security number is important for U.S. citizens to have, the Federal Tax ID Number is necessary for an LLC or corporation to lawfully conduct business activities, especially if you're operating a business in the United States. All U.S. companies are required to have an EIN to open a U.S. bank account, obtain loans, hire employees and more.

The EIN is valid for the life of the company. However, if your business changes its entity type (for example, it changes from an LLC to a corporation), a new Federal Tax ID Number is typically required.

How Do You Obtain an EIN?

We offer an inexpensive service to assist you with obtaining a Federal Tax ID for your company from the IRS. This fast and easy service allows you to avoid dealing with the often-confusing IRS forms and procedures, and also includes professional customer support.

Our processing time for EIN orders will depend on how we are able to submit your filing to the IRS. If a filing contains a non-U.S. address or the member does not have a TIN (Tax Identification Number) issued by the United States, it must be submitted by fax or scan.

All other filings will be processed online unless the EIN cannot be obtained, in which case it will have to be faxed. Processing times begin after we receive the signed SS4 form.

Orders submitted online to the IRS: 3 - 4 business days

Orders submitted by fax to the IRS: 7 - 20 business days


Responsible party has U.S. address and valid SSN
Responsible party does not have U.S. address or valid SSN


If you're forming a new company with us, you can save time and request that we obtain the EIN for you when we file your corporation or LLC.


When you fill out our company order form, simply select that you would like for us to obtain your Federal Tax ID number and we'll take care of the rest.


Form a company and obtain a Tax ID Obtain a Tax ID for an existing company

What to Do If You Lose Your EIN

It's not uncommon for an EIN to get misplaced. If you can't locate the Federal Tax ID Number for your company, there are several ways to find it. If we obtained the EIN on behalf of your company, we can provide the number to you. Simply call us at 800-345-2677 and we'll be happy to assist you. Please be advised we will resend the number to the email address we have on file.

If we did not obtain the EIN for you, look at your company records. When you applied for an EIN, the IRS issued you a computer-generated notice that confirmed your application. Your EIN should be on this notice.

If you can't locate this notice, contact your company's bank. Your Federal Tax ID was required to open the business bank account, and the bank should be able to provide the number to you.

If you're still unable to find your EIN, you can contact the IRS directly at 800-829-4933 from 7 AM to 10 PM, Monday through Friday. Please be advised there is often a wait time to speak with a representative. Once the IRS has established you are an authorized representative for your company, they will provide you with the number.

Please note: Harvard Business Services, Inc. is not affiliated with the state of Delaware or the IRS.

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