For LLC formation services in Kansas in 2026, we'd rank Mainstay Filing ($199) and KS Registered Agent.org ($199), best first. Every option pays the same $85 filing fee, then three years of service cost $397 to $597.
Straight from the LLC Straight Talk editorial team
The short of it
The short of it
What the state charges
$85, one time
After that
$90 every other year
Resident agent
Yes, it's the law
Who we'd use
Mainstay Filing then KS Registered Agent.org
Kansas: our ranking
The order comes from our five tests: three-year cost first, then what the price covers.
#1Our top pick
1. Mainstay Filing: best for handing off the upkeep
Annual price $199, renewal price $199, state fee on top
Mainstay Filing wins the top spot: $199 a year pays for forming the LLC, acting as your resident agent and filing the information report, and it renews at $199.
Here's the catch: KS Registered Agent.org costs $200 less over three years, and you'd do more of the paperwork yourself.
It files your information report, and Kansas's $90 gets passed along at cost.
What you get
Formation handled start to finish
Resident agent for a whole year
Information report taken care of when due
EIN application filed
State fees at cost
Pluses
A flat $199 a year
Year two's $199
The EIN application's included
What's not
$100 a year above KS Registered Agent.org after year one
#2Kansas only
2. KS Registered Agent.org: best for a business that never leaves one state
$199 plus the state fee, then $99 a year
Forming costs $199 up front (the agent is covered for year one) and $99 each year after. That puts KS Registered Agent.org second.
You're still on the hook for the information report.
What you get
Your LLC, filed
Agent service covered for year one
Pluses
$199 plus the state fee to form
Agent renews at $99
Year one of the agent comes with it
What's not
You'll do the information report yourself
The EIN application costs $99 extra
The numbers
#
Company
First year
Then
3 years
What you get
1
Mainstay Filing
$199
$199/yr
$597
formation handled start to finish; resident agent for a whole year; information report taken care of when due
Every line above links to the state's own page. The total's ours: the filing, two reports and any minimum tax.
More questions
Is the EIN application included?
Only Mainstay Filing throws it in. At the others it's $99 (KS Registered Agent.org).
What do the picks cost over three years?
Mainstay Filing comes out at $597; KS Registered Agent.org comes out at $397, with state fees on top.
Where do these numbers come from?
Each state fee links to its official page, and each service price comes from the company's own site.
Do I have to use a service?
No law says you need a service. It's a convenience you pay for.
Any yearly state fees?
The information report is the one you can't forget. It's biennial and runs $90. Per the state, it's due 15th day of the 4th month after tax-year-end.
Who should I use for a LLC service in Kansas?
Mainstay Filing is first: one yearly price of $199 covers the formation, the resident agent and every information report. Then comes KS Registered Agent.org.