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Foreign registration cost calculators + Kentucky

3 Best Foreign Registration Services in Kentucky (2026): Cost Calculator

Calculated for 2026, Kentucky foreign registration services rank Mainstay Filing ($199), Kentucky Registered Agent.co ($199) and KY Registered Agent.org ($199), from first to third. Kentucky charges $90 to register, and the calculator adds $397 to $497 of service fees across three years.
Calculated by the Formation Calc editorial team

Result order: Formula: 41% cost, 27% coverage, three lesser terms. Details

Kentucky: key outputs

Fee at the filing office$90apps.legislature.ky.gov {input read October 2026, shown in full}
Opening results$199Provider fees only
What three years calculate to$397 to $497Three years of provider fees
State side through year 3$645Equal for every provider
Break-evenNo crossoverStable for a decade

Kentucky ranking

Service prices only. Each result is subject to the same $90 state fee.
1

1. Mainstay Filing: best for LLCs still growing

Leads the results
Year-1 input$199
Input for year 2 on$149/yr
Result at year 3$497
$199 to register, $149 yearly after

Mainstay Filing gives the best result in Kentucky: a $199 service input that does not vary by state, with first-year agent service included.

Pay $100 above Kentucky Registered Agent.co across three years and the repeating filings stop being your concern.

After the free year, the agent bills $149 annually.

Inputs covered

  • Registration handled for you
  • Registered agent free in year one
  • One fee wherever you register

Adds up well

  • Registered agent is free in year one
  • All fifty states covered
  • $199 plus the state's fee

Adds up badly

  • A higher agent renewal ($149)
2

2. Kentucky Registered Agent.co: best for a single extra state

Kentucky focus
Year-1 input$199
Input for year 2 on$99/yr
Result at year 3$397
$199 to register, $99 yearly after

Result 2: Kentucky Registered Agent.co. It adds $199 to the state fee and throws in a first agent year, then bills $99 yearly.

Inputs covered

  • Registration paperwork, filed
  • Agent service for the first year

Adds up well

  • No agent charge in year one
  • $99 a year for the agent after that
  • Starts at $199

Adds up badly

  • The home state needs a different agent
3

3. KY Registered Agent.org: best for one extra state

Kentucky focus
Year-1 input$199
Input for year 2 on$99/yr
Result at year 3$397
$199 to register, $99 yearly after

Result 3: KY Registered Agent.org. It adds $199 to the state fee and throws in a first agent year, then bills $99 yearly.

The year-one and renewal inputs both equal Kentucky Registered Agent.co's.

Inputs covered

  • Registration paperwork, filed
  • Agent service for the first year

Adds up well

  • No agent charge in year one
  • Starts at $199
  • $99 a year for the agent after that

Adds up badly

  • The home state needs a different agent

What each service adds up to

RankServiceResult, year 1Result, year 2Result, year 3Result, year 5
1Mainstay Filing$199$348$497$795Open Mainstay FilingPartner link. We may earn money if you buy.
2Kentucky Registered Agent.co$199$298$397$595Open Kentucky Registered Agent.coPartner link. We may earn money if you buy.
3KY Registered Agent.org$199$298$397$595Open KY Registered Agent.orgPartner link. We may earn money if you buy.
Prices entered November 13, 2026. Every column adds a renewal. No break-even appears within ten years.

Choose your own span

How long will the company stay open? Enter the years and compare.
At 3 years, the results are Mainstay Filing $497, Kentucky Registered Agent.co $397, KY Registered Agent.org $397. Least paid: Kentucky Registered Agent.co.

Kentucky state fees (official)

InputAmountSource
Foreign registration filing$90apps.legislature.ky.gov {input read October 2026, shown in full}
Annual report$15sos.ky.gov {input read October 2026, shown in full}
State minimum tax$175 per yearrevenue.ky.gov {input read October 2026, shown in full}
State fees summed, years 1 to 3$645Our sum
The state's three-year figure is a sum of three kinds of charge: the filing fee, the reports owed in years two and three, and a minimum tax where the state levies one. Costs with no fixed amount, such as publication in a newspaper, are noted in the text and left out of the sum.

What settled the order

Mainstay Filing wins filing work in the price, worth 27%, with Kentucky Registered Agent.co close behind.

The home state counts as well; a single account for both scored highest.

How Kentucky describes the foreign LLC registration fee and rules

Registration inputs: the Certificate of Authority (Foreign Business Entity) (Form FBE), the Kentucky Secretary of State, Division of Business Filings, $90.

Skipping registration can bring a lack of standing to sue in Kentucky (KRS 14A.9-020(1)); per-day fines of $2.

As written: sos.ky.gov {input read October 2026, shown in full}

State fees only

$645 is the lowest this calculation goes, because it holds only state fees. The services above put $397 to $497 on top.

Quick answers

What is the registration fee for a foreign LLC in Kentucky?

$90 in state fees, where our results add $199.

What do these services calculate to over three years?

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

Which form registers the LLC?

Complete Certificate of Authority (Foreign Business Entity) (Form FBE) and deliver it to the Kentucky Secretary of State, Division of Business Filings.

What recurring filing follows registration?

The annual report, charged at $15.

When does one service pass another in total cost?

No crossing within ten years; no service passes another.

Which foreign registration service calculates best for Kentucky?

Ranked results: Mainstay Filing, Kentucky Registered Agent.co and KY Registered Agent.org.

Related calculators

Input sources

  1. Kentucky Secretary of State is entered from sos.ky.gov (August 2026).
  2. Kentucky Secretary of State is entered from sos.ky.gov (August 2026).
  3. Kentucky report due date is entered from apps.legislature.ky.gov (August 2026).
  4. KRS 275.025 is entered from apps.legislature.ky.gov (August 2026).
  5. Kentucky formation fee: Filing fee is entered from sos.ky.gov (October 2026).
  6. Kentucky registered agent statute is entered from apps.legislature.ky.gov (October 2026).
  7. Kentucky Secretary of State, business is entered from sos.ky.gov (October 2026).
  8. Form FBE, Certificate of Authority is entered from web.sos.ky.gov (October 2026).
  9. KRS 14A.9-020, consequences of transacting is entered from apps.legislature.ky.gov (October 2026).
  10. KRS 14A.9-010, authority to transact is entered from apps.legislature.ky.gov (October 2026).
  11. Kentucky other cost: Limited Liability is entered from revenue.ky.gov (October 2026).
  12. Kentucky service page figure supplied by Mainstay Filing, November 13, 2026
  13. pricing page figure supplied by Kentucky Registered Agent.co, November 13, 2026
  14. pricing page figure supplied by KY Registered Agent.org, November 13, 2026