Connecticut Business license

Business tax change effective January 2006
NEW  Public Act 06-159 (SB 638), repeals the requirement that a pass-through entity (partnerships and entities taxed as partnerships and S corporations) make estimated Connecticut income tax payments on behalf of its nonresident members. The law is effective for taxable years beginning on or after January 1, 2006. On or after June 6, 2006, pass-through entities need not make further estimated payments for their nonresident members.

Connecticut department of revenue
This is a great site with direct links to .pdf files you can print and mail. The business registration for Connecticut taxation license is here.

Doing business in Connecticut
Doing business with the state of Connecticut, license and permit information, business regulations, taxation information and other resources for those doing business or starting a business in Connecticut.

Connecticut department of revenue
Frequently asked questions concerning business taxes and Connecticut tax forms.

Connecticut Labor Law posters.
Not an official government site. Just another place to buy labor law posters, for both federal and state.