Best Foreign Qualification

Best Foreign Qualification › Illinois

Best foreign qualification services in Illinois

Our top pick in Illinois is Mainstay Filing: $199 plus the $150 state fee, $349 in all.

Best 3 Foreign Registration Services in Illinois (2026)

1. Mainstay Filing

$199 + $150 state fee = $349

Registered agent free for the first year, then $149 a year.

2. IL Registered Agent.org

$199 + $150 state fee = $349

Registered agent included for the first year, then $99 a year.

3. Illinois Registered Agent.co

$199 + $150 state fee = $349

Registered agent included for the first year, then $99 a year.

Service prices read from each provider’s Illinois page on October 28, 2026. The state fee is the official figure below and is paid to the Illinois Secretary of State, Department of Business Services, Limited Liability Division.

What you get, side by side

ServiceYear 1Agent, year 1Agent after3 years of service + agent
Mainstay Filing$349Free$149/yr$497
IL Registered Agent.org$349Included$99/yr$397
Illinois Registered Agent.co$349Included$99/yr$397

The 3-year column adds each service’s agent price for years 2 and 3 to its $199 fee; state fees and Illinois’s yearly filing are the same whichever you choose.

The Illinois filing

Form
Form LLC-45.5, Application for Admission to Transact Business
State fee
$150
From your home state
Certificate of Good Standing or Existence, no older than 60 days
Every year after
Annual report (Illinois Secretary of State), $75 (due: within the 60 days before your anniversary month)

Questions

What is the best foreign qualification service in Illinois?

Mainstay Filing: $199 plus the $150 state fee, with a Illinois registered agent free for the first year.

How much is the Illinois state fee?

$150.

What do I file in Illinois?

Form LLC-45.5, Application for Admission to Transact Business, with the Illinois Secretary of State, Department of Business Services, Limited Liability Division, plus a certificate from your home state.

Sources