Updated October 6, 2026 · 4 services tested
We tested 4 registered agent services for Illinois. Northwest Registered Agent is our pick: $125 first year, then $125/yr.
By Jon Morgan · Fact-checked by Jon Tobin, Business Attorney · How we test
Northwest Registered Agent
$125 first year, then $125/yrFree first year with its $39 LLCGet Northwest's agent service (opens in a new tab)
ZenBusiness
$99 first year, then $199/yrHalf price in year one when you switch to ZenBusiness (state fee extra)See ZenBusiness agent plan (opens in a new tab)
LegalZoom
$249 first year, then $249/yrSee LegalZoom's agent plan (opens in a new tab)Prices checked October 6, 2026.
We signed up with every registered agent service on this page ourselves, then watched exactly what happened once payment cleared and the account opened.
Northwest Registered Agent topped our list on a renewal price that hasn't moved in years. ZenBusiness took second on a first-year rate that undercuts most of the pack by half.
Skip the first-year sticker price and check the renewal column instead. That figure is what actually repeats on your card once any opening discount runs out.
| Service | Agent price | RA bundled with formation | Service features | Score | Compare offers |
|---|---|---|---|---|---|
| $125 first year, then $125/yrFree first year with its $39 LLC | Yes (free first year with formation) | • Same-day legal mail scanning • Business address stands in for yours • Free agent switch-over paperwork | 4.9 | Get agent service (opens in a new tab) |
| $99 first year, then $199/yrHalf price in year one when you switch to ZenBusiness (state fee extra) | No (50% off first year with formation) | • State-notice monitoring • Same-day scans emailed to dashboard • Overnight delivery for urgent mail | 4.7 | See plan (opens in a new tab) |
| $249 first year, then $249/yr | No | • Compliance Calendar reminders • Scanned documents to account • Unlimited cloud storage | 4.4 | See plan (opens in a new tab) |
 | $149 first year, then $149/yrFree first year with a Bizee LLC | Yes (free first year with formation) | • Same-day SOP notifications • Mail forwarding: email, dashboard, or physical • Handles agent-change paperwork | 4.3 | See plan (opens in a new tab) |
Prices checked October 6, 2026.
Each score combines support, price, features, privacy and security, compliance alerts and user ratings.
Refund: 90 days
We signed up with Northwest Registered Agent ourselves, and the account screen named the agent of record the instant our order finished processing.
That Registered Agent Details screen already listed an entity ID, a coverage start date and a downloadable invoice, instead of making us dig through a separate confirmation email.
Address privacy applies from day one. The provider's own office stands in for ours on the public Illinois filing, so an owner's home address stays off the public record entirely.
Pros
Cons
Refund: 60 days
ZenBusiness prices its agent service at a lower rate for the first year. That rate steps back up once the opening window closes, per the company's own pricing page.
That first-year rate ties to a real promotion, a half-price deal on the agent service when the same LLC also forms through the company.
The provider's own notice keeps that agent address narrow. It covers legal papers and state notices only, and it isn't meant to double as a general business or mailing address.
Pros
Cons
Refund: 60 days
Most owners already recognize the LegalZoom brand, so it stood out that its LLC formation flow never once raised the registered-agent question for us.
United States Corporation Agents, a wholly owned subsidiary, sits behind that familiar name. LegalZoom actually lists it as the agent handling the role.
A state like Illinois expects an agent named the moment paperwork actually gets filed. A checkout flow that never once surfaces that choice is a real gap worth knowing about ahead of time.
Pros
Cons
Refund: Before state payment
Ordering the agent role together with formation zeroed out Bizee's fee for the opening year, landing under every other price on this page.
That discount kicked in automatically inside the same formation account, with no separate signup step. A single dashboard screen kept state and federal filing tabs side by side.
Forwarding for incoming legal mail comes with more than one delivery option, letting an owner pick exactly how each document actually reaches them.
Pros
Cons
Every provider on this page went through the same testing methodology. We paid for the service ourselves, used it the way a real customer would and scored what actually happened against what the marketing promised.
The final ranking rests on six weighted categories, adjusted for what actually matters once Illinois's own filing calendar enters the picture.
Northwest Registered Agent sets the pace here, and ZenBusiness trails it closely enough to hold second among Illinois's four picks.
LegalZoom sits mid-pack in this category, and Bizee scores lowest without falling out of a workable range for a budget-focused option.
Northwest Registered Agent and ZenBusiness tie for the best price score, though they get there differently, with a flat renewal that never moved versus a steep opening-year cut.
LegalZoom and Bizee sit just below that pair. LegalZoom's higher sticker price gets some cushion from extras the other three skip.
Northwest Registered Agent carries the fullest feature set, combining quick document scanning with a switch-over service it handles at no added cost.
ZenBusiness counters with its own alert layer, LegalZoom leans on its Compliance Calendar, and Bizee keeps state and federal filings together on a single screen.
Northwest Registered Agent tops this category by putting its own office address on the public filing, keeping an owner's home address off the record entirely.
ZenBusiness trails closely on its own published address-use rules, LegalZoom sits close behind that, and Bizee scores lowest of the four here.
Northwest Registered Agent leads this category too, flagging a new document the moment it arrives rather than waiting on any scheduled check-in.
ZenBusiness stays close behind on its own alert system, while LegalZoom and Bizee sit nearer the bottom here.
Northwest Registered Agent's outside review scores beat every other name on this page, and ZenBusiness trails closely enough to take the second spot.
Any one review platform can swing on its own, so we treated those scores as a supporting input alongside our own hands-on testing rather than the deciding factor.
Illinois skips the commercial-versus-noncommercial split some states use, so any of these four names files the same way on the paperwork, with one agent and one address.
The bigger yearly decision on this page is the $75 Annual Report deadline, timed to the first day of an LLC's own registration-anniversary month rather than a fixed calendar date.
This page also carries no dedicated Illinois-only provider, so all four names are national operations. That puts extra weight on renewal price and document-handling speed, since there's no local option to weigh against them.
The cheapest renewal on this page runs $125 a year and the priciest currently sits at $249, auto-renewing at whatever rate applies when you sign up.
ZenBusiness and Bizee land in between, at $199 and $149 a year once each provider's opening discount runs out.
Naming yourself as agent skips the fee entirely, as long as a qualifying individual keeps a real Illinois street address on file the whole time the LLC stays active.
An agent's fee has nothing to do with Illinois's own Annual Report. That filing carries its own flat $75 charge, due before the LLC's registration-anniversary month starts, no matter which agent you're paying.
Formation costs live on a separate page altogether. Our best LLC services in Illinois guide breaks those numbers down for anyone budgeting the whole setup, including costs beyond the agent piece.
A couple of providers cut this list down to almost nothing. Northwest Registered Agent and Bizee each take over the switch-over filing on a new customer's behalf.
Yes. State law requires every Illinois LLC to have an agent on file for as long as the company remains active.
A member or manager can serve personally with a real Illinois street address on file, though the LLC itself can't be listed as its own agent.
The role covers accepting service of process and official state notices for the company, then passing each one along right away. Tax filings and business licenses aren't part of that job.
Budget for a renewal somewhere between $125 and $249 a year, with two of the four providers on this page landing at $149 and $199.
File Form LLC-1.36/1.37, the Statement of Change of Registered Agent and/or Registered Office, along with a $25 fee.
Yes. Illinois LLCs file one every year, due before the first day of their registration-anniversary month, for a $75 fee.
Every name on this page clears Illinois's baseline legal duty for a registered agent without issue.
What actually separates them shows up after that, in how fast documents move, whether the renewal number holds steady and how much compliance work still lands back on you.
Northwest Registered Agent wins this page by building the registered-agent duty into its main product instead of treating it as a side extra.
ZenBusiness is the strongest alternative for owners who want a guided dashboard watching every deadline alongside that same duty.
If budget is the deciding factor, Bizee's zeroed-out opening fee stands out for anyone bundling formation with the agent role. LegalZoom suits owners already settled into its broader legal-service lineup.
References
Our verdict
$125 first year, then $125/yr. 90-day money-back guarantee.
Prices checked October 6, 2026.