Flat Fee Registered Agent › Illinois
Flat-fee registered agent in Illinois
Mainstay Filing is flat in Illinois: $149 a year, then $149. We priced 8 other providers here: 5 show a flat price and 3 show a teaser (Harbor Compliance, FreeRegisteredAgent.com and ZenBusiness).
| Provider | Advertised | After year 1 | Flat or teaser? | What the page says it covers |
|---|---|---|---|---|
| Mainstay Filing | $149 | $149 | Flat | Registered agent all year; same-business-day scan of service of process; first three government mailings a year scanned free |
| Northwest Registered Agent | $125 | $125 | Flat | Its address on public filings; scans of state and legal mail; up to 5 pieces of other business mail scanned free a year; domain, website, email and phone line |
| InCorp Services | $129 | $129 | Flat | Same-day electronic service of process; compliance calendar; entity monitoring |
| Bizee | $149 | $149 | Flat | Compliance notifications; its address on the public record |
| Registered Agents Inc | $200 | $200 | Flat | Business address, annual report filing and same-day document scans, per its order page |
| LegalZoom | $249 | $249 | Flat | Alerts when mail arrives; documents scanned and uploaded; annual report reminders |
| FreeRegisteredAgent.com | $0 | $129 | Teaser | Compliance alerts, per its Illinois page |
| Harbor Compliance | $99 | $159 | Teaser | Documents delivered to a client portal; annual report reminders |
| ZenBusiness | $99 | $199 | Teaser | Document receipt, scanning and upload to a dashboard; email notifications |
Every LLC must name a registered agent with an in-state street address. Changing agents in Illinois costs $25. Source: 805 ILCS 180/1-35, checked October 20, 2026.
Which flat-fee registered agent is available in Illinois?
6 of 9 providers priced for Illinois show a flat price, from $125 a year. Mainstay Filing is $149.
Do I need an agent in Illinois?
Every LLC must name a registered agent with an in-state street address. (805 ILCS 180/1-35).