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Foreign registration price index · Connecticut

3 Best Foreign Registration Services in Connecticut (2026): Price Index

The index for 2026 puts CT Registered Agent.org ($199), Mainstay Filing ($199) and Connecticut Registered Agent.co ($199) at the top of the Connecticut foreign registration services ledger, in that order. Registration costs $120 at the state, and the service lines add $397 to $497 across three years.
Entries by the LLC Price Index editorial team

Index basis: Index of five columns: three-year cost (38%), coverage per dollar (32%), renewal step, crossover year and price transparency. Basis explained

Quick tally

Registration charge$120business.ct.gov (read October 2026) per the state
First-year range$199Service lines only
Subtotal at year three$397 to $497First year plus two later years
State fees through year 3$280Not part of the index
CrossoverNoneSubtotals keep their order

Connecticut: foreign registration price index

Each line shows year one, the price from year two and the three-year subtotal. Connecticut's $120 fee is added to any line.
1

1. CT Registered Agent.org: best for a stripped-down registration

Index leader
First year$199
Years 2 and on$99/yr
Three-year sum$397
$199 on top of $120 at the state; renewal $99

Best value in Connecticut is CT Registered Agent.org: $199 beyond the state fee, then $99 a year.

Its three-year subtotal is under Mainstay Filing's, and three-year cost carries 38% of the index.

Line includes

  • Foreign registration handled
  • Agent service in year one

Credits

  • Year-one agent covered in the price
  • $199 over the state fee
  • Agent renews at $99

Debits

  • Nothing outside this state
2

2. Mainstay Filing: best for companies on the move

Covers the most items
First year$199
Years 2 and on$149/yr
Three-year sum$497
$199 on top of $120 at the state; renewal $149

Mainstay Filing indexes second. The entries: $199 on top of the state fee, registered agent free in year one, $149/yr afterward.

Three years total $100 more than CT Registered Agent.org.

Agent charge from year two: $149, the same everywhere.

Line includes

  • State registration handled
  • Registered agent free for the first year
  • The same price across the country

Credits

  • Identical fee in every state
  • Registered agent costs nothing in year one
  • $199 plus the state's fee

Debits

  • $50 more per year for the agent
3

3. Connecticut Registered Agent.co: best for another in-state choice

Local provider
First year$199
Years 2 and on$99/yr
Three-year sum$397
$199 on top of $120 at the state; renewal $99

Line 3 goes to Connecticut Registered Agent.co: $199 beyond the state fee, then $99 a year.

On price alone it is a tie with CT Registered Agent.org.

Line includes

  • Foreign registration handled
  • Agent service in year one

Credits

  • $199 over the state fee
  • Agent renews at $99
  • Year-one agent covered in the price

Debits

  • Nothing outside this state

Subtotal by year

LineProviderTotal, year 1Total, year 2Total, year 3Total, year 5
1CT Registered Agent.org$199$298$397$595Visit CT Registered Agent.orgPartner link. We may earn money if you buy.
2Mainstay Filing$199$348$497$795Visit Mainstay FilingPartner link. We may earn money if you buy.
3Connecticut Registered Agent.co$199$298$397$595Visit Connecticut Registered Agent.coPartner link. We may earn money if you buy.
Service fees only, taken from each company's prices on November 13, 2026. No line overtakes another in ten years.

Cost calculator

Subtotals for 1 to 5 years. State fees are omitted because every line carries the same ones.
Over 3 years: CT Registered Agent.org $397, Mainstay Filing $497, Connecticut Registered Agent.co $397. Lowest at that point: CT Registered Agent.org.

Official state charges

EntryAmountCited from
Registering the LLC$120business.ct.gov (read October 2026) per the state
Annual report$80business.ct.gov (read October 2026) per the state
Three-year state subtotal$280Sum of the lines above
Every state line cites the official source beside it. The 3-year subtotal adds filing, reports in years 2 and 3 and any minimum tax.

What settled the order

Weight 38%: three-year cost index. That column separated the top two lines.

Three years with CT Registered Agent.org cost $397, while Mainstay Filing runs $100 higher.

Official Connecticut foreign LLC registration fee and rules

Out-of-state LLCs send the Foreign Registration Statement, Limited Liability to the Connecticut Secretary of the State, Business Services Division, and the fee is $120. Add certificate of existence (certificate of good standing) from the state of formation dated no earlier than 90 days.

Operating unregistered can bring the fees it should have paid.

Official wording: business.ct.gov (read October 2026) per the state

Skipping the service

Government fees alone total $280 for three years, which is the floor. The ledger shows what each service adds ($397 to $497).

Quick answers

What does Connecticut charge an out-of-state LLC to register?

$120 to the filing office, plus service fees starting in the $199 range.

What is the three-year subtotal for these services?

Year one plus two renewals comes to $397 to $497.

Which document does the registering?

The registering document is Foreign Registration Statement, Limited Liability, and the Connecticut Secretary of the State, Business Services Division is the office that takes it.

Does Connecticut want a paper from the LLC's home state?

Yes, no more than 90 days old: certificate of existence (certificate of good standing) from the state of formation.

What recurring filing comes after registration?

Next comes the annual report, billed at $80.

When does one line pass another in total cost?

Within ten years, never: the order of the subtotals stays the same.

Which foreign registration service indexes best in Connecticut?

CT Registered Agent.org: line one on three-year cost index. Then Mainstay Filing and Connecticut Registered Agent.co.

Related indexes

Source lines

  1. Line for Connecticut Secretary of the State: business.ct.gov, August 2026.
  2. Line for Connecticut Secretary of the State: business.ct.gov, August 2026.
  3. Line for Connecticut yearly filing: Annual report: business.ct.gov, October 2026.
  4. Line for Connecticut report due date: cga.ct.gov, August 2026.
  5. Line for Connecticut formation fee: Filing fee: business.ct.gov, October 2026.
  6. Line for Connecticut formation fee: Filing fee: business.ct.gov, October 2026.
  7. Line for Foreign LLC forms and fees: business.ct.gov, October 2026.
  8. Line for Foreign Registration Statement form: business.ct.gov, October 2026.
  9. Line for Foreign investigations penalties: business.ct.gov, October 2026.
  10. Line for Who can be an agent: business.ct.gov, October 2026.
  11. Line for Foreign annual report forms and: business.ct.gov, October 2026.
  12. Ledger input from the CT Registered Agent.org pricing page, November 13, 2026
  13. Ledger input from the Mainstay Filing Connecticut service page, November 13, 2026
  14. Ledger input from the Connecticut Registered Agent.co pricing page, November 13, 2026