City Registration

All businesses must register with the City of Stamford.

Pre-Registration Tips

Here are some quick tips to look at before registering your business.

State Registration

Businesses must obtain both a tax registration number and a business license from the State of Connecticut.

Federal Registration

Most businesses must register with the US Internal Revenue Service (IRS) to obtain an Employer Identification Number (EIN). If you are not a US citizen, you may need an Individual Taxpayer Identification Number (ITIN) instead.