How to Get an EIN for an LLC in Connecticut - How to Start my LLC

How to Get an EIN for an LLC in Connecticut

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Carolyn Young has over 25 years of experience in business in various roles, including bank management, marketing management, and business education.

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For over 15 years, Sarah Ruddle has been a noteworthy leader in the business and nonprofit world.

How to Get an EIN for an LLC in Connecticut

How to Get an EIN for an LLC in Connecticut

The Internal Revenue Service (IRS) uses your business’s employer identification number (EIN) to identify your company, much the way a Social Security number is used to identify individuals. 

When you form a limited liability company (LLC) in Connecticut, you’ll almost certainly need to obtain an EIN, mainly used for tax filing purposes. 

Do I Need an EIN?

If your LLC has more than one member or if you are going to hire employees, you’ll need an EIN. But these aren’t the only factors. The IRS offers a test to determine if you need an EIN:

  • Do you have employees?
  • Do you operate your business as a corporation or a partnership?
  • Do you file any of these tax returns: Employment, Excise, or Alcohol, Tobacco, and Firearms?
  • Do you withhold taxes on income, other than wages, paid to a non-resident alien?
  • Do you have a Keogh plan?
  • Are you involved with any of the following types of organizations?
    • Trusts, except certain grantor-owned revocable trusts, IRAs, Exempt Organization Business Income Tax Returns
    • Estates
    • Real estate mortgage investment conduits
    • Non-profit organizations
    • Farmers’ cooperatives
    • Plan administrators

If you answer yes to these questions, your business needs an EIN.

Benefits of Having an EIN

Advantages of having an EIN

There are several reasons to get an EIN, even if you’re not required to have one. First, it’s often required to open a business bank account. It creates separation between your business and personal finances because your business will be identified by creditors and the IRS by your EIN instead of your social security number. 

Also, it helps establish business credit, which will boost your access to financing. And, if you do end up hiring employees in the future, you’ll already have your EIN and be ready to go. 

What Do I Need to Get an EIN in Connecticut?

According to the IRS:

All EIN applications (mail, fax, electronic) must disclose the name and Taxpayer Identification Number (SSN, ITIN, or EIN) of the true principal officer, general partner, grantor, owner, or trustor. This individual or entity, which the IRS will call the ‘responsible party,’ controls, manages or directs the applicant entity and the disposition of its funds and assets. Unless the applicant is a government entity, the responsible party must be an individual (i.e., a natural person), not an entity.

When you fill out the application, you’ll need the following:

  • DBA name, if you have one
  • Name, title, and Social Security number of managing member or owner
  • Business address
  • State in which your business is registered
  • Reason for applying
  • Main business activity
  • Products/services offered 
  • Closing month of your accounting year
  • Contact phone number and email

How to Apply for an EIN in Connecticut

The application is Form SS-4, and you can submit it via the IRS website. Alternatively, you can print the form and fax or mail it. If you apply online, your EIN will be issued immediately. 

There is no cost to obtain an EIN, which never expires.

Register for Connecticut Taxes

You also may need to register for business taxes in Connecticut. 

If you have employees, you’ll need to register to withhold income taxes on the Revenue Services website. This will also register you for sales tax if you sell taxable goods or services.

You’ll also need to register for unemployment taxes with the Department of Labor if you have employees. 

Your local government may also require certain tax registrations. 


Is there a fee involved in acquiring an EIN for my Connecticut LLC?

No, obtaining an EIN from the IRS is entirely free. You can apply directly through the IRS without any costs.

How long will it take to receive my EIN in Connecticut once I apply?

Online applications often provide the EIN immediately upon submission. For faxed applications, it takes about four business days, and mailed applications might require 4-5 weeks.

I own a single-member LLC in Connecticut. Can I simply use my SSN instead of getting an EIN?

While you can use your SSN for certain operations, obtaining an EIN is advised for additional privacy and to meet varied business requirements.

Can foreign owners or non-residents get an EIN for their Connecticut LLC?

Absolutely, foreign individuals or entities can obtain an EIN for their Connecticut LLC. Applications can be made without an SSN or ITIN, generally through mail or fax.

After securing my EIN, are there specific requirements related to Connecticut I should be aware of?

While the EIN is a federal designation, there could be state-related obligations, such as state tax registrations or acquiring particular business licenses in Connecticut.

If my Connecticut LLC dissolves and I start another, can I reuse my old EIN?

Generally, you would need a new EIN for a new LLC, even if it has similar members or business activities.