Foreign registration price tables - Illinois
3 Best Foreign Registration Services in Illinois (2026): Price Table
Table order: Sort key: 40% cost, 30% coverage and three lesser columns. Method
Table summary
- Government registration fee$150ilsos.gov [read October 2026, table note]
- Opening cells$199The state fee is separate
- Three-year cells$397 to $497Both renewals counted
- What the state takes in 3 years$300Official figures alone
- Break-even yearEntries keep their placesSteady ranking
Illinois table, ranked
-
1. Illinois Registered Agent.co: best for a registration with a small price
Entry one- Year-1 cell$199
- Cell for later years$99/yr
- Three-year cell$397
Year one $199; later years $99
For Illinois, Illinois Registered Agent.co is the best value because registering with Illinois through this service costs $199, followed by a $99 agent renewal.
On the heaviest column, three-year cost, it beats Mainstay Filing.
Price buys
- Registration handled for you
- Agent service for the first year
In its favor
- Year-one agent covered
- Service fee of $199
- Agent renews at $99
Against it
- Illinois only, so the home state needs its own agent
See Illinois Registered Agent.coPartner link. We may earn money if you buy. -
2. IL Registered Agent.org: best for another in-state registrant
In-state provider- Year-1 cell$199
- Cell for later years$99/yr
- Three-year cell$397
Year one $199; later years $99
Entry 2 is IL Registered Agent.org. Registering with Illinois through this service costs $199, followed by a $99 agent renewal.
Illinois Registered Agent.co lists identical prices.
Price buys
- Registration handled for you
- Agent service for the first year
In its favor
- Service fee of $199
- Year-one agent covered
- Agent renews at $99
Against it
- Illinois only, so the home state needs its own agent
See IL Registered Agent.orgPartner link. We may earn money if you buy. -
3. Mainstay Filing: best for one fee wherever you register
Any state- Year-1 cell$199
- Cell for later years$149/yr
- Three-year cell$497
Year one $199; later years $149
Entry 3 is Mainstay Filing. $199 on top of the state fee, free agent service in year one, then $149 a year.
Three years cost $100 more here than with Illinois Registered Agent.co.
Agent price from year two: $149 a year, in any state.
Price buys
- Registration handled for you
- Registered agent costs nothing in year one
- The same fee in each state
In its favor
- First-year agent service included
- Service charge of $199
- All fifty states covered
Against it
- $50 more each year for the agent
See Mainstay FilingPartner link. We may earn money if you buy.
Running totals at 1, 2, 3 and 5 years
| No. | Entry | Year 1 cell | Year 2 cell | Year 3 cell | Year 5 cell | |
|---|---|---|---|---|---|---|
| 1 | Illinois Registered Agent.co | $199 | $298 | $397 | $595 | See Illinois Registered Agent.coPartner link. We may earn money if you buy. |
| 2 | IL Registered Agent.org | $199 | $298 | $397 | $595 | See IL Registered Agent.orgPartner link. We may earn money if you buy. |
| 3 | Mainstay Filing | $199 | $348 | $497 | $795 | See Mainstay FilingPartner link. We may earn money if you buy. |
Cost calculator
The government side, Illinois
| Charge | Cell | Source |
|---|---|---|
| Registration charge | $150 | ilsos.gov [read October 2026, table note] |
| Annual report | $75 | ilga.gov [read October 2026, table note] |
| State fees over three years | $300 | Sum of the lines above |
Notes on the order
Illinois Registered Agent.co did better than IL Registered Agent.org on three-year row total, a 40% column.
Illinois Registered Agent.co adds up to $397 over three years, a $100 saving next to Mainstay Filing.
Illinois foreign LLC registration fee and rules, quoted from the official source
The Illinois Secretary of State, Department of Business Services, Limited Liability Division receives $150 and the Application for Admission to Transact Business (Form LLC-45.5) from out-of-state LLCs operating in Illinois. Enclose certificate of Good Standing or Existence issued inside 60 days.
Operating unregistered can bring no standing to sue in Illinois (805 ILCS 180/45-45(a)); back fees.
Official wording: ilga.gov [read October 2026, table note]
State fees only
With no service, Illinois still bills $300 over three years and every form lands on your desk. Services charge $397 to $497 to lift that work.
About these figures
What does registering a foreign LLC in Illinois cost?
$150 as the official fee, while hiring a service adds $199.
What do these entries add up to over three years?
$397 to $497 across the entries, not counting state fees.
Which form carries out the registration?
Use Application for Admission to Transact Business (Form LLC-45.5), lodged with the Illinois Secretary of State, Department of Business Services, Limited Liability Division.
Must a document from the home state accompany the Illinois filing?
Yes, one issued within 60 days: certificate of Good Standing or Existence.
Which recurring filing follows registration?
It is the annual report, charged at $75.
When does one entry pass another in total cost?
No swap in ten years; no entry passes another.
Which foreign registration service is the best value for Illinois?
Illinois Registered Agent.co, which wins on three-year row total. IL Registered Agent.org and Mainstay Filing follow.
More tables
Where this came from
- For Illinois Secretary of State, Department the source is ilsos.gov (August 2026).
- For Illinois Secretary of State, Department the source is ilsos.gov (August 2026).
- For 805 ILCS 180/5-5 the source is ilga.gov (August 2026).
- For Illinois formation fee: Filing fee the source is ilga.gov (October 2026).
- For Illinois formation fee: Filing fee the source is ilsos.gov (October 2026).
- For Illinois registered agent statute the source is ilga.gov (October 2026).
- For Form LLC-45.5, Application for Admission the source is ilsos.gov (October 2026).
- For Form LLC-45.40, Application for Withdrawal the source is ilsos.gov (October 2026).
- For 805 ILCS 180/45-45, consequences of the source is ilga.gov (October 2026).
- For 805 ILCS 180/45-47, activities that the source is ilga.gov (October 2026).
- For 805 ILCS 180/45-45 the source is ilga.gov (November 2026).
- Price cells copied from Illinois Registered Agent.co pricing page, November 13, 2026
- Price cells copied from IL Registered Agent.org pricing page, November 13, 2026
- Price cells copied from Mainstay Filing Illinois service page, November 13, 2026