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Costs Guide · What a Connecticut LLC actually costs to form and run, and exactly what our price covers.

Connecticut LLC Costs — What You Actually Pay

The full cost of a Connecticut LLC is more than one filing fee. This page breaks down what you pay to form the LLC, what recurs every year, which costs are optional, and where owners are surprised — so you can budget for the real number instead of just the headline one. The receipt card on this page shows the current state amounts; the discussion below explains what each one is for.

One price: $199.00/yr covers your formation, your registered agent, and your annual report, plus the $120.00 state filing fee, at cost.

State agency: Connecticut Secretary of the State, Business Services Division

Annual report due: March 31 · Processing: 2-3 business days

Form Your Connecticut LLC ($199.00/yr All-In)

✓ No hidden fees  ✓ No second-year price hikes  ✓ No missed filings

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Receipt / Estimate

Connecticut LLC Formation

Everything we do /yr$199.00
State filing fee (at cost)$120.00
  • Formation prepared & filed
  • Your registered agent, all year
  • Annual report prepared & filed
Due today$319.00

Renews at $199.00/yr + the state's $80.00 annual-report fee, at cost.

The One-Time Cost to Form the LLC

The mandatory cost of starting a Connecticut LLC is the state filing fee for the Articles of Organization, paid to the Secretary of the State when you submit the formation filing through the Business One Stop portal. This single fee covers creating the entity — there is no separate charge for the registered agent designation within the Articles, and no hidden line items beyond what the forms and fees page lists.

What the formation fee does and does not include

  • Included: the state's processing of your Articles of Organization and the creation of your LLC in the public record.
  • Not included: an EIN (free from the IRS separately), an operating agreement, a business bank account, any professional or industry licenses, and any local trade-name registration.

Think of the formation fee as the price of legal existence. Everything else on this page is either recurring, optional, or triggered by your specific business — not part of the base filing.

Recurring Annual Costs

An LLC is not a one-and-done expense. Connecticut has a yearly obligation that owners sometimes overlook until a notice arrives.

Annual report fee

Every Connecticut LLC files an annual report, and the state charges a fee for it. The report is filed online only, between January 1 and March 31 each year, through Business.CT.gov. Paying the fee and filing on time is what keeps the LLC in good standing. The current amount is on the state fee schedule and shown in the receipt card on this page.

Registered agent, if you use a service

If you serve as your own registered agent, there is no ongoing cost for it. If you use a commercial registered agent service — which most out-of-state owners and many home-based owners do to keep an address private — that service has its own recurring fee. It is optional in the sense that the law does not require a paid service, but it is a real line in most owners' budgets.

Taxes

Taxes are not a filing "fee," but they are a real recurring cost. Connecticut taxes pass-through income at the member level, administers a Pass-Through Entity Tax that many multi-member LLCs interact with, and collects sales and use tax if you sell taxable goods or services. These vary entirely with your income and activity, so budget for them separately from the state's flat filing charges.

Optional and Situational Costs

Beyond the required fees, several costs come up depending on how you set up and run the business. None are universal — they apply only if they fit your situation.

Name reservation

If you want to hold a name before filing, Connecticut charges a small fee to reserve it for a set period through the Secretary of the State. This is optional; most owners simply confirm availability and file, skipping the reservation.

Trade name (DBA) registration

If you operate under a name other than your LLC's legal name, you register that trade name with the town clerk in the town where you do business — not with the state. Each town sets its own fee, and registrations run five years. This applies only if you use a different public-facing name than your LLC's official one.

Foreign qualification

If your LLC was formed in another state and you are registering it to do business in Connecticut, you pay a filing fee for the Certificate of Authority, and you will also need a certificate of good standing from your home state (which that state may charge for). This applies only to out-of-state LLCs entering Connecticut.

Amendments and changes

Changing your registered agent, amending the Articles, or making certain other updates may carry a state fee. These are situational — you only pay when you need to make the specific change.

Professional and local licenses

Connecticut has no single general business license, but many trades and professions require state licensure, and some towns require local permits. Costs vary widely by profession and locality and are entirely separate from your LLC filings.

Where Owners Get Surprised

The formation fee is the number everyone sees. The costs that catch owners off guard are the ones that show up later or come from outside the Secretary of the State.

The annual report is not optional

Some owners treat the LLC as a one-time purchase and forget the annual report. Missing it does not save money — it costs money, because falling out of good standing and needing reinstatement is more expensive than the annual fee would have been. Budget for the annual report every year from the start.

Reinstatement is more expensive than staying current

If you let the LLC lapse and the state administratively dissolves it, getting it back means paying the overdue reports and reinstatement costs. This is always more than the cost of simply keeping up. The cheapest compliance strategy is not missing deadlines.

"Free" EIN scams

The IRS issues EINs at no cost through its online assistant. If a site charges you "for the EIN" itself, you are paying for a service to fill out a free form, not for the number. Know the difference so you are choosing to pay for convenience, not being charged for something that is free.

Taxes dwarf filing fees over time

For a profitable LLC, the state filing fees are minor next to income and sales taxes. The filing fees are predictable and flat; the taxes scale with your business. Plan for the taxes with an accountant — they are the larger number in most years.

How Mainstay Filing Prices This

When you form your Connecticut LLC through us, our pricing is transparent: you see what the state charges and what our service adds, with no bait-and-switch. Registered agent service is included, so you are not surprised later by a separate agent bill, and we track your annual report window so the recurring cost never becomes a costly reinstatement.

The receipt card on this page reflects the current Connecticut state amounts, so the fee you see is the fee that applies. We do not mark up the state's charge and disguise it — the state fee is the state fee. What you pay us is for preparing and submitting the filing correctly, serving as your agent, and keeping your compliance on schedule. If you would rather handle everything yourself, all the state fees and portals referenced here are public and available directly through the Secretary of the State.

Frequently asked questions

What is the main cost of forming a Connecticut LLC?

The mandatory cost is the state filing fee for the Articles of Organization, paid to the Secretary of the State. That single fee creates the LLC and includes the registered agent designation within the Articles. The current amount is on the state's forms and fees page and in the receipt card on this page. Everything else — EIN, operating agreement, licenses — is separate.

Is there an ongoing yearly cost for a Connecticut LLC?

Yes. Every Connecticut LLC files an annual report each year, and the state charges a fee for it. It is filed online only, between January 1 and March 31. Paying and filing on time is what keeps the LLC in good standing. Beyond that, a commercial registered agent service (if you use one) and your taxes are recurring costs that vary by situation.

Does Connecticut charge a business entity tax?

Not anymore. Connecticut used to levy a separate biennial Business Entity Tax, but that tax was repealed. Your recurring state obligation as an LLC is the annual report and its fee, plus income and sales taxes tied to your activity.

Is getting an EIN an extra cost?

No. The IRS issues EINs for free through its online assistant, usually immediately. If a site charges you "for the EIN," you are paying a service to complete a free form, not for the number itself. Know that the EIN is free directly from the IRS.

Why is reinstatement more expensive than staying compliant?

If you miss annual reports and the state administratively dissolves the LLC, reinstating it requires paying all the overdue reports plus reinstatement costs. That total is always higher than simply paying the annual report fee on time each year. The least expensive path is never letting the LLC lapse.

Ready to form your Connecticut LLC?

Formation, your registered agent, and your annual report. One price, $199.00/yr, with the state fee passed through at cost.

Form Your Connecticut LLC ($199.00/yr All-In)