Connecticut Tax ID (EIN) Number Application - Business Help Center

IRS Tax ID (EIN) Application

Connecticut Tax ID (EIN) Number Application

Looking to obtain your Tax ID (EIN) Number in Connecticut? This short Connecticut Tax ID Application Guide will walk you through the basic steps you need to follow to apply for your Tax ID (EIN) Number in the state of Connecticut. Whether you own a Partnership, multi-member LLC, Corporation, Non-Profit, Trust or Estate, this guide will help you learn what you need to know to obtain your official IRS Tax ID Number within minutes.


Steps to Obtain your Tax ID (EIN) Number in Connecticut:

  1. Prepare Required Information
  2. Apply for a Connecticut Tax ID Online
  3. Apply for a Connecticut Tax ID by Phone, Mail or Fax
  4. How Do I Get a Business Tax ID in CT?
  5. How Do I Get a Connecticut Tax Registration Number?
  6. How Do I Get a Connecticut State Tax ID Number?

1. Prepare Required Information

Your first step should be gathering up all the information you’ll need to complete the tax ID application. The application won’t take long, but it will go much faster (and be less stressful) if you have all the details in front of you, rather than chasing them down as needed.

At a minimum, you should know:

  • Legal names and addresses. You should have access to the full legal names and legal addresses of all your business members, including yourself and all your partners.
  • Social security numbers (SSNs). You should also write down all your business members’ social security numbers (SSNs).
  • Your business name. You’ll also need to decide on a business name because applying for a tax ID will register your business with the federal government, this needs to be in place.

2. Apply for a Connecticut Tax ID Online

Applying for a Connecticut tax ID gives you many feasible options. Traditionally, people would apply for a tax ID with paper applications through the mail or over fax, or answer questions in a phone call. But today, the best method is applying online.

Universally, applying online is faster and more convenient. You can access the online application using any device that has an internet connection, which automatically means less work for you. And because the application is simple and easy to understand, you should be able to complete it in less than 5 minutes, especially if you already have the right information gathered. When you’re done filling out the application, you can obtain your tax ID via email in less than an hour, which means you can get your business up and running faster than with any other method. If you want to start generating revenue as soon as possible, applying online is a no-brainer.


3. Apply for a Connecticut Tax ID by Phone, Mail or Fax

That said, applying online isn’t the only option available to you. You could feasibly apply through one of the existing traditional methods. For example, if you like the idea of answering your application questions in an interview-style format, you could apply over the phone. If you don’t mind finding and filling out a paper application, you can also apply by sending the application in with traditional mail or over fax.

These methods tend to be less convenient, but the real killer is the wait time. With traditional methods, you’ll often be stuck waiting 4 to 6 weeks to receive your tax ID via traditional mail.

4. How Do I Get a Business Tax ID in CT?

If you’re going to start a business in Connecticut, you’ll probably need a tax ID number. The term “tax ID” usually refers to a federal tax ID number, which is sometimes called an employer identification number, or EIN. This is a nine-digit unique identifier that serves as a fingerprint for your business, and it’s necessary for many business purposes.

For example, you’ll need a federal tax ID number if you’re going to hire employees, or if you’re going to have multiple partners running the business (like in a partnership, corporation, or LLC with multiple members). You’ll also need one if you’re going to handle business-related finances, like if you’re going to open a business bank account, apply for a business loan, or open a line of credit. EINs are also typically necessary if you’re applying for a business license or permit.

You can apply for a tax ID in one of several different ways. Traditional methods, like applying with a paper application by mail, do exist, but it’s much better to apply for a tax ID online. In this process, you’ll fill out an application (which should take 5 minutes or less). Afterward, you’ll receive your tax ID via email in less than an hour.

5. How Do I Get a Connecticut Tax Registration Number?

Your Connecticut business may also need a Connecticut tax registration number, another name for a Connecticut state tax ID. Though similar in name and purpose to a federal tax ID number, this ID number is a completely different construct, and is used for a different purpose.

You’ll need a Connecticut state tax ID if you’re going to sell taxable products and services in the state of Connecticut. You’ll also need one if you’re going to owe excise taxes on products like alcohol and tobacco, or if you’re going to hire Connecticut employees. It registers your business with the state government, similar to how the federal tax ID application registers your business with the federal government, and you’ll go through a similar application process to get it.

Like with a federal tax ID, you can apply for your Connecticut state tax registration number online or through a traditional method, but it’s much better to apply online. Even with the online application, however, it could take up to 4 to 6 weeks to receive your number.

6. How Do I Get a Connecticut State Tax ID Number?

In all likelihood, your business will need both a federal tax ID and a Connecticut state tax ID. You’ll need a Connecticut state tax ID if you’re going to sell taxable products and services, if you’re going to owe excise taxes, or if you’re going to hire employees in the state of Connecticut.

If your business needs a Connecticut state tax ID number, you’ll first need to acquire a federal tax ID number (EIN). Once you have that, you can fill out the state tax ID application in whichever medium you prefer, answering questions about your business and its principal members. Ideally, you’ll apply online, since the online application is faster and more convenient than traditional methods. When you’re finished with the application, you can get your state tax ID in a matter of 4 to 6 weeks.