What an amendment in Connecticut actually does.
What needs an amendment
Entity name changes, principal office address changes, registered agent changes, member or manager additions / removals, change in purpose or NAICS, change in management structure.
Certificate of Amendment
Connecticut calls it the Certificate of Amendment. Filed with the SOS, signed by an authorized member or manager, includes both the before and after values for clarity.
Typical processing time
Connecticut SOS typically processes amendments in 3 to 10 business days for online filings. Expedited service is available in most states for an additional fee.
Risks of not filing
Banks can refuse account changes if SOS record does not match. Lenders flag in diligence. Service of process can be delivered to old addresses. Outdated officer records can muddy authority.
Pre-filled from your BOS record
Your File.Business vault already has the current and prior values. We pre-fill the Certificate of Amendment with the change, you approve, we submit to Connecticut SOS.
Receipt + record update
After Connecticut SOS accepts, the stamped filing goes to your vault. Your BOS record updates automatically. Anyone running a state record check now sees the new info.
A clean handoff, in 5 steps.
Identify what changed
Name, address, RA, members, managers, or purpose. We map each change type to the right field on the Connecticut Certificate of Amendment.
Confirm member approval
Most amendments require a member or board vote per the operating agreement or bylaws. We provide consent templates if needed.
Prepare the Certificate of Amendment
Pre-filled from your BOS record with current and updated values. You review, sign, we submit.
File with Connecticut SOS
Submitted electronically with $120 state fee. Processing typically 3 to 10 business days for standard filings.
Sync downstream records
After SOS acceptance: update IRS records if EIN-relevant change, update bank, update vendors and contracts. We provide a downstream checklist in your vault.
File one amendment, or get the full bundle for $20 more.
If you need an amendment, you probably also need AR filing, a Registered Agent, and a Certificate of Status. The Compliance Bundle covers all of it.
- Certificate of Amendment prepared and filed in Connecticut
- Updates entity record with the Secretary of State
- State-stamped acceptance returned to your vault
- Plain-English review before submission
- Filing accuracy guarantee
- 1 Amendment included per year (address, member, name)
- Annual Report AutoFile, filed every year on time
- Registered Agent service in your state (1 entity)
- Certificate of Good Standing (1 included per year)
- Deadline monitoring across all your filings
- Priority human support, no chatbot queue
Common questions.
What is the Certificate of Amendment in Connecticut?
The Certificate of Amendment is the official Connecticut Secretary of State document for updating your entity record. Filed any time something on file (name, address, RA, members, purpose) changes.
When do I need to file an amendment in Connecticut?
Entity name changes, principal office address changes, registered agent changes, member or manager changes, purpose / NAICS changes, conversions to a different entity type. Some routine changes (mailing-only address) may not require an amendment.
How much does an amendment cost in Connecticut?
Connecticut's state filing fee for the Certificate of Amendment is $120. Our service fee is separate (see pricing above). Expedited processing adds an additional state fee in most cases.
How long does Connecticut take to process amendments?
Standard processing is typically 3 to 10 business days for online filings. Connecticut offers expedited service for an additional fee.
Do all members need to sign?
Signing requirements depend on your operating agreement or bylaws. Most Connecticut LLCs require a member vote (majority or supermajority depending on the agreement). We provide consent templates and walk you through the requirement.
What if I need to update multiple things at once?
You can usually combine multiple changes in a single amendment filing. Saves a state fee. We bundle them automatically when you file through File.Business.
Do I need to amend my Operating Agreement separately?
Yes. The Certificate of Amendment updates the state record. Your Operating Agreement is a separate internal document; if the change affects rights, voting, or member relations, update the Operating Agreement at the same time. We can draft the OA amendment alongside.
What happens to my EIN after a name change?
Your EIN stays the same. You notify the IRS of the name change by letter (or on the next tax return). Banks typically want a copy of the stamped Certificate of Amendment before updating their records.
Do I need to file amendments in other states where I am foreign qualified?
Yes. If you are registered as a foreign entity in other states, you must also file amendments in each of those states for the same change. We handle multi-state amendment cascades on the Compliance Bundle and Business OS.
Where to next?
Every filing connects into your File.Business operating system. Pick where to go from here — we keep the rest tracked.