Connecticut LLC Annual Report & Compliance Checklist
One state filing keeps a Connecticut LLC in good standing: the annual report, filed with the Secretary of the State every year. This page covers that filing in detail, then walks the rest of the yearly checklist. For the formation process, see our formation guide.
When Is the Connecticut Annual Report Due?
Between January 1 and March 31, every year. Connecticut uses a fixed calendar window, the same for every LLC, not a deadline tied to your formation anniversary. The state switched from anniversary-based filing to this fixed window in 2018, so ignore older guides that tell you to file in your formation month. The window applies whether or not the LLC had any activity or income.
Connecticut LLC Annual Report Fee
The fee is $80. Foreign LLCs registered in Connecticut file the same report at the same $80. The report confirms your information on the state's records; it is not a financial statement.
How to File the Connecticut Annual Report
Ready to get started?
Get Started- Go to business.ct.gov and sign in. The report is filed online only; the state offers no routine paper option.
- Look up your LLC by name or by its Business ID (ALEI).
- Confirm or update the principal office address, mailing address, business email, NAICS code, and the listed members or managers. At least one principal must appear with name, title, residence address, and business address, and those must be physical addresses (a PO box works only as a mailing address).
- Note what the report cannot change: swapping registered agents requires a separate agent change filing (the new agent must accept the appointment), and changing the LLC's name requires a Certificate of Amendment.
- Pay the $80 fee and save the confirmation. The report is signed under penalty of false statement.
What Happens If You Miss the Window
Connecticut adds no late fee, but do not read that as harmless. While any annual report is outstanding, the Secretary of the State will not issue a Certificate of Legal Existence for your LLC, and that certificate is exactly what a bank, landlord, or closing attorney will request before funding a loan or closing a deal. An LLC more than one year in default can be administratively dissolved under Conn. Gen. Stat. ยง 34-247k. If that has already happened, see our reinstatement guide.
The Rest of the Yearly Checklist
Federal Taxes
- Multi-member LLCs taxed as partnerships file Form 1065 by March 15 (extension via Form 7004).
- Single-member LLCs report on Schedule C with the owner's Form 1040 by April 15 (extension via Form 4868).
- LLCs with an S corp election file Form 1120-S by March 15.
Connecticut Taxes
Members pay Connecticut income tax on their share of LLC income, and the state offers an elective pass-through entity tax that shifts where that tax is paid. If you sell taxable goods or services, sales tax registration and returns apply. The details depend on your election and activity; see our Connecticut tax guides.
Quarterly Estimated Taxes
If you expect to owe $1,000 or more in federal tax:
- Q1: April 15
- Q2: June 15
- Q3: September 15
- Q4: January 15 of the following year
Registered Agent Maintenance
- Confirm your agent is still active at the address on state records.
- If the agent's address changed, file the agent address change with the Secretary of the State; remember the annual report itself cannot update agent information.
- Using our service? Renewal is $99 per year and we send annual report reminders before the window closes.
Housekeeping
- Review the operating agreement if members, percentages, or management changed.
- Renew local licenses and industry permits before they lapse.
- Revisit insurance (general liability, workers' compensation if you have employees) as the business grows.
Calendar Summary
Ready to get started?
Get Started| Deadline | Requirement | Fee/Penalty |
|---|---|---|
| January 1 to March 31 | Connecticut annual report | $80 |
| March 15 | Federal return, partnerships and S corps | Varies |
| April 15 | Federal return, single-member owners | Varies |
| Quarterly | Estimated tax payments | Underpayment penalty |
| Ongoing | Registered agent maintenance | $99 per year (our service) |
FAQ
What if my LLC had no income this year?
File anyway. The $80 annual report is owed regardless of activity, and a partnership return may still be required federally even at zero income.
Can I handle compliance myself?
Yes. The annual report is a short online filing at business.ct.gov, and the IRS handles federal filings directly. Professionals earn their keep on tax planning more than on the report itself.
What does administrative dissolution mean?
The state involuntarily dissolves an LLC that stays more than one year behind on its annual report. The company loses its good standing and, with it, reliable liability protection. Our reinstatement guide covers the fix.
For more guides, see our learning-center overview.