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The Formation Desk

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Foreign registration picks · Kentucky

3 Best Foreign Registration Services in Kentucky (2026)

The The Formation Desk call for foreign registration services in Kentucky in 2026: Kentucky Registered Agent.co ($199), KY Registered Agent.org ($199) and Mainstay Filing ($199), in that order. Kentucky Registered Agent.co takes the call: $199 plus the state fee, one year of registered agent service included, then $99 a year for the agent.
Written by The Formation Desk editorial team
1
Number one here

1. Kentucky Registered Agent.co: best for adding only Kentucky

$199 for the service, state fee on top; agent $99 a year after year one

Editorial score 9.5 out of 10

The desk picks Kentucky Registered Agent.co: the Kentucky registration for $199, first agent year included, then $99 yearly.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

It wins the three-year cost comparison with Mainstay Filing.

In the price

  • Filing with the state
  • A first year of registered agent service

Strengths

  • Registration at $199 before state fees
  • Then $99 a year for agent service
  • Includes a first year as your registered agent

Cons

  • Kentucky only; your home state needs its own agent
  • EIN application will cost you $99 more
Visit Kentucky Registered Agent.coPartner link. We may earn money if you buy. Kentucky Registered Agent.co up close
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Best value here

2. KY Registered Agent.org: best for Kentucky registrations only

A $199 service fee plus state fees, then $99 a year for the agent

Editorial score 9.0 out of 10

Runner-up, KY Registered Agent.org: the Kentucky registration for $199, first agent year included, then $99 yearly.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

KY Registered Agent.org lines up with Kentucky Registered Agent.co on price and plan features, so little divides them.

In the price

  • Filing with the state
  • A first year of registered agent service

Strengths

  • $199 to register, state fee extra
  • Year-one registered agent service is in the price
  • Then $99 a year for agent service

Cons

  • Kentucky only; your home state needs its own agent
  • EIN application will cost you $99 more
Visit KY Registered Agent.orgPartner link. We may earn money if you buy. KY Registered Agent.org up close
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Best for multi-state companies

3. Mainstay Filing: best for companies working in more than one state

$199 plus the state fee ($289 due at checkout), then the agent at $149 a year from year two

Editorial score 8.9 out of 10

Third, Mainstay Filing: it files the Kentucky registration for $199 and serves as your registered agent, free in year one, then $149 a year.

The first agent year is free, and after that the agent runs $149 a year, in any state.

Kentucky Registered Agent.co undercuts Mainstay Filing by $100 over three years, and that is why Mainstay sits lower on cost.

In the price

  • Registration paperwork prepared and filed
  • Registered agent service costs nothing in year one
  • Papers served on the company scanned and uploaded on the same business day, free

Strengths

  • $199 service fee, state fee on top
  • Same price in all fifty states
  • Registered agent costs nothing in year one
  • Free scans of served papers on the same business day

Cons

  • Agent renewal of $149 is $50 above Kentucky Registered Agent.co
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing up close

The desk's 3 picks in brief

Pick Service Desk score Service fee Year two Good for Visit
1 Kentucky Registered Agent.co 9.5 $199 $99/yr The lowest agent renewal we rank here Visit Kentucky Registered Agent.coPartner link. We may earn money if you buy.
2 KY Registered Agent.org 9.0 $199 $99/yr The lowest agent renewal we rank here Visit KY Registered Agent.orgPartner link. We may earn money if you buy.
3 Mainstay Filing 8.9 $199 $149/yr Companies doing business in several states Visit Mainstay FilingPartner link. We may earn money if you buy.

A score out of 10 here is editorial judgment built on the criteria explained on How we rank, not an average of customer ratings.

What a Kentucky foreign registration service costs in 2026: year one, renewal and the three-year bill

Service Year one Year two Year three Bill over three years Agent covered in year one
Kentucky Registered Agent.co $199 $99 $99 $397 Included
KY Registered Agent.org $199 $99 $99 $397 Included
Mainstay Filing $199 $149 $149 $497 Free

Every price here was read off the company's own pages on November 12, 2026. Kentucky's $90 registration fee comes on top of every row and is left out of these totals.

How the desk made the call

Here is the weighting: 33% for spend over three years, 33% for work the price removes, 34% spread over what renewal looks like, fit with the state and plain price display. In Kentucky, spend over three years made the call.

Kentucky Registered Agent.co comes to $397 over three years, $100 less than Mainstay Filing. Both include a first year of agent service, so the renewal price made the call.

The full criteria and weights are on How we rank.

Registering a foreign LLC in Kentucky: fee, form and who gets it

To register, the company files the Certificate of Authority (Foreign Business Entity) (Form FBE) with the Kentucky Secretary of State, Division of Business Filings and pays the state's $90.

From then on the company owes the annual report ($15), due between January 1 and June 30 each year.

What to pull together first

  • The company name exactly as the home state spells it, and when it was formed.
  • An in-state registered agent; any service the desk picked can fill that seat.
  • $90 for the state, paid when you file.
  • A date on your calendar for the annual report and its $15 fee.

What it costs to ignore Kentucky registration

Until it registers, an outside LLC has no right to sue in Kentucky courts (KRS 14A.9-020(1)). A daily penalty of $2 can run on top.

Kentucky foreign registration service: reader questions

Does an LLC from elsewhere have to register to operate in Kentucky?

Yes, once it starts doing business there. Until it registers it cannot sue in the state's courts.

What will foreign registration cost you in Kentucky?

$90 goes to the state and $199 to the service.

What does Kentucky call its foreign registration form?

It goes to the Kentucky Secretary of State, Division of Business Filings, and the form's title is on the facts line above.

Do you still need a registered agent after you register?

Yes. Keep a registered agent with a street address in the state on file.

Which foreign registration services did the desk rank here?

Kentucky Registered Agent.co ($199), KY Registered Agent.org ($199) and Mainstay Filing ($199), best pick first.

Who is our pick for foreign registration in Kentucky?

Kentucky Registered Agent.co, since $199 over the state fee to register in Kentucky, agent renewing at $99.

See also

Where the numbers came from

  1. Kentucky Secretary of State, last checked August 2026
  2. Kentucky Secretary of State, last checked August 2026
  3. Kentucky report due date, last checked August 2026
  4. KRS 275.025, last checked August 2026
  5. Kentucky formation fee: Filing fee, official source, last checked October 2026
  6. Kentucky registered agent statute, last checked October 2026
  7. Kentucky Secretary of State, business filings, last checked October 2026
  8. Form FBE, Certificate of Authority, last checked October 2026
  9. KRS 14A.9-020, consequences of transacting business without authority, last checked October 2026
  10. KRS 14A.9-010, authority to transact business required, last checked October 2026
  11. Kentucky Registered Agent.co: pricing and service pages, as of November 12, 2026
  12. KY Registered Agent.org: pricing and service pages, as of November 12, 2026
  13. Mainstay Filing: Kentucky service page, as of November 12, 2026