Getting an EIN for Your Connecticut Business

Starting a US small business in Connecticut requires careful planning and proper registration. One of the first steps you’ll need to take is obtaining an EIN in Connecticut, which is essential for managing tax obligations, hiring employees, and more. With the help of accounting services in Connecticut, you can ensure everything is in order for a smooth and compliant business launch.

Here’s everything you need to know about obtaining an EIN and why it’s crucial for your business.

What Is an EIN in Connecticut?

An Employer Identification Number (EIN), also known as a Federal Tax Identification Number, is a nine-digit number assigned by the IRS to identify your business entity for federal tax purposes. It functions similarly to a Social Security number but is used specifically for your business.

Why Do You Need an EIN in Connecticut?

You need an EIN if your US small business will:

  • Hire employees

  • Operate as a partnership, corporation, or multi-member LLC

  • Open a business bank account

  • Apply for business loans or credit

  • File federal and state tax returns

  • Obtain specific business licenses or permits

Even sole proprietors without employees benefit from having an EIN to separate personal and business finances.

How to Apply for an EIN in Connecticut

1. Prepare Your Business Information

Before applying, gather the following:

  • Legal business name and mailing address

  • Social Security Number (SSN) or ITIN of the responsible party

  • Your business structure (e.g., LLC, partnership, corporation)

2. Apply Online via the IRS Website

The quickest way to obtain an EIN is by applying online through the IRS EIN application portal. The process takes about 10 minutes, and you’ll receive your EIN immediately upon completion.

  • Cost: Free

  • Time: Instant upon completion

3. Alternative Application Methods (Slower Process)

If you prefer, you can apply through:

  • Fax – Send Form SS-4 to the IRS

  • Mail – Wait up to 4–6 weeks for processing

  • Phone – For international applicants only

✅ Still doing accounting the old way? Your competitors aren’t. Counto’s AI handles the boring stuff while experienced accountants ensure everything’s perfect. See the future of accounting here

EIN vs. Connecticut State Tax ID

While the EIN in Connecticut is issued by the IRS and serves federal tax purposes, your Connecticut State Tax ID is required for state tax obligations, such as sales tax collection and employee withholding.

Key Differences:

  • The EIN is issued by the IRS and is used for federal tax purposes.

  • The Connecticut State Tax ID is issued by the Connecticut Department of Revenue Services (DRS) and is necessary for state tax matters, such as sales tax and withholding for employees.

  • The EIN application is free, while applying for the Connecticut State Tax ID requires a $100 fee.

  • You need to obtain an EIN before you can apply for your Connecticut State Tax ID.

How Accounting Services in Connecticut Can Help

Navigating tax registrations, EIN applications, and state filings can be overwhelming. That’s where accounting services in Connecticut come in handy. Here’s how they can assist your US small business:

  • Choosing the Right Business Structure: An accountant can help you decide if an LLC, corporation, or sole proprietorship is right for you.

  • Ensuring Compliance: Accountants help you stay on top of both federal and state tax regulations to avoid penalties.

  • Setting Up Your Financial Systems: From bookkeeping to payroll, a professional accountant ensures that everything is structured correctly from day one.

  • Minimizing Tax Liabilities: Expert advice can help you reduce taxes and make smarter financial decisions for your business.

Summary

Obtaining an EIN in Connecticut is a simple but vital step for any US small business. It’s necessary for filing taxes, hiring employees, and keeping business finances separate. Applying online through the IRS is fast and free, but it’s important to also consider your Connecticut State Tax ID after securing your EIN. If you’re feeling uncertain about the process, partnering with accounting services in Connecticut will ensure you’re on the right track from day one.

Your Next-Level Accounting Team: AI That Learns + Experts Who Care

Tired of Teaching Every New Accountant About Your Business? Traditional accounting services mean repeatedly explaining your business to new staff. Modern companies need systems that learn and remember—exactly what most accounting firms can’t deliver.

Counto’s intelligent accounting service adapts to your business. Our AI learns your specific patterns and transactions, then handles your daily bookkeeping automatically. Expert accountants review everything for accuracy, and your dedicated Customer Success Manager is always just a message or call away. No more repeated explanations, no more basic questions—just accounting that understands your business.

Join small businesses saving hours monthly on financial management with our outsourced accounting solution. Plus, with our AI handling the routine work, you’ll get better insights at a fraction of the cost of a full-time bookkeeper. Ready to upgrade your accounting? Chat with us now, email [email protected], or use our contact form.

 

Here are some articles you might find helpful:

Completing Form 1120-S

S Corp Schedule K-1 (Form 1120S)

US Partnership Taxes

Share this post
Menu