Cheapest LLC Formation Services in Illinois (2026)
Forming an Illinois LLC is affordable — but "cheap" only means something once you separate the state's mandatory fees from what a formation service actually charges. The cheapest sticker price isn't always the cheapest first year. Here are the six services worth comparing, ranked.
Forming an LLC in Illinois is one of the more affordable startup moves a founder can make, but "cheap" only means something once you separate the state's mandatory costs from what a formation service actually charges. As of 2026, Illinois collects a one-time $150 fee to file your Articles of Organization (closer to $153 once the online card surcharge is added), then a recurring $75 annual report fee, with optional $100 expedited processing and a $400 fee for a Series LLC. Those numbers are fixed no matter who files for you, so the real question when comparing services is what sits on top of the state fee: whether registered agent service is included or billed separately, whether you get an EIN and operating agreement, and whether the platform helps you stay compliant after formation. The cheapest sticker price isn't always the cheapest first year, and the services below are ranked with that distinction in mind.
Illinois state fees (fixed for every service)
| State cost | Amount | Notes |
|---|---|---|
| Articles of Organization (file your LLC) | $150 one-time | ~$153 with online card surcharge |
| Annual report | $75 / year | Due the first day of your anniversary month |
| Expedited processing | $100 (optional) | Faster turnaround |
| Series LLC | $400 (optional) | Only if forming a Series LLC |
| Franchise tax on LLCs | None | Illinois imposes no franchise tax on LLCs (corporations do) |
Our top pick: ZenBusiness
For most Illinois founders weighing price against what's actually included, ZenBusiness is the service we recommend starting with. It files your Articles of Organization for $0 plus the state fee, layers on a modern compliance dashboard that tracks your annual report and tax deadlines, and bundles registered agent service and S-corp election filing into transparent plans rather than burying them in checkout upsells. That combination of a genuine free formation tier and real ongoing-compliance support is why it leads this list.
Start Your Illinois LLC with ZenBusinessComparison at a glance
Pricing as of 2026
| Service | Formation price | Registered agent | Tax & compliance tools | Best for |
|---|---|---|---|---|
| | $0 + state fee | ~$199/yr (often bundled with compliance) | Compliance dashboard, annual-report tracking, EIN & Form 2553 filing on paid tiers | Best overall value with ongoing support |
| | $39 + state fee (regularly ~$100) | First year free, then ~$125/yr | Operating agreement, compliance reminders, strong privacy | Privacy and predictable renewals |
| | $0 + state fee | First year free, then renews | Free tax consultation, EIN & Form 2553 on paid tiers | Lowest first-year out-of-pocket |
| | $0 + state fee | ~$199–$249/yr | Attorney access, compliance monitoring on higher tiers | Founders wanting legal counsel |
| | $99.99 + state fee (free for members) | Available as add-on | Attorney advice, document library via membership | Heavy ongoing legal document needs |
| | $0 + state fee | Add-on with formation only | Compliance package ~$199/yr, branding tools | Brand-first launches |
The rankings
ZenBusiness
Top PickBest overall value for Illinois LLCs
ZenBusiness files your Articles of Organization for $0 plus the Illinois state fee and pairs it with the cleanest ongoing-compliance experience in the category.
- ✓ Free Starter formation; Pro plan around $199/year adds faster filing, an EIN, and an operating agreement template
- ✓ Worry-Free Compliance dashboard that tracks your $75 Illinois annual report and flags upcoming deadlines
- ✓ Registered agent service (roughly $199/year, frequently bundled with compliance) so your address stays off public filings
- ✓ S-corp election support, including help filing IRS Form 2553, on its paid tiers
- ✓ Over 500,000 businesses formed, with a well-rated mobile app and dashboard
Pros
Genuine $0 formation, the strongest compliance tooling here, transparent plan structure, EIN and Form 2553 handled in-platform.
Cons
Registered agent and Worry-Free Compliance renew annually, so the true multi-year cost runs higher than the free headline suggests.
Best for: First-time founders who want a free filing today and a system that keeps them compliant afterward.
Pricing tier: Free formation; mid-tier annual plans.
ZenBusiness earns the top spot because it answers the two questions that matter most after you file: how do I stay compliant, and how do I handle my tax election. Its dashboard surfaces both your federal obligations (an EIN before opening a bank account, Form 2553 if you want S-corp treatment) and your Illinois ones (the annual report due the first day of your anniversary month, plus state tax registration). That makes it a rare, cheap option that doesn't leave you to track deadlines on your own.
Form Your LLC with ZenBusinessNorthwest Registered Agent
Best for privacy and predictable renewals
Northwest charges a flat $39 plus the state fee (its regular price is closer to $100) and includes a full year of registered agent service in that single price.
- ✓ One all-inclusive package, no tiered upsells at checkout
- ✓ Registered agent included year one, then a steady ~$125/year — lower than most competitors' renewals
- ✓ Uses its own address on public filings and doesn't sell your data
- ✓ Free operating agreement template and a dedicated "Corporate Guide" support contact
- ✓ Typically submits filings the same business day
Pros
Excellent privacy posture, no aggressive upselling, transparent long-term pricing.
Cons
A small upfront fee where ZenBusiness and Bizee start at $0; lighter on built-in tax-election automation.
Best for: Owners who prioritize privacy and want renewal costs they can predict for years.
Pricing tier: Low flat fee; lowest registered agent renewal.
Bizee
Lowest first-year out-of-pocket
Bizee (formerly Incfile) files for $0 plus the state fee and folds in a year of free registered agent service, making it the cheapest true first-year option for many Illinois founders.
- ✓ Free Basic formation with one year of registered agent service included
- ✓ Standard ($199) and Premium ($299) tiers add operating agreement, EIN, and Form 2553 filing
- ✓ Free business tax consultation to help you weigh entity and tax-status choices
- ✓ A month of free virtual address service on the entry plan
Pros
Free formation plus free first-year registered agent, useful tax consultation, and helpful for understanding the financial requirements before you commit.
Cons
EIN and operating agreement sit behind paid tiers; registered agent renews after the first year, so year-two costs climb.
Best for: Budget-focused founders minimizing their first-year cash outlay.
Pricing tier: Free formation; paid upgrade tiers.
LegalZoom
Best for founders who want legal counsel
LegalZoom files at $0 plus the state fee on its Basic plan and backs it with the deepest legal-services bench of any provider here.
- ✓ Free Basic formation; higher tiers add attorney consultations and a document library
- ✓ Registered agent service costs around $199–$249/year
- ✓ Compliance monitoring and annual report help on upper plans
- ✓ A recognizable national brand serving more than four million businesses
Pros
Real attorney access, broad document tools, strong name recognition.
Cons
Registered agent is among the priciest here, and the most useful tax and compliance features live on the costlier plans.
Best for: Owners who anticipate needing attorney guidance beyond formation.
Pricing tier: Free formation; premium legal add-ons.
Rocket Lawyer
Best for ongoing legal-document needs
Rocket Lawyer charges $99.99 plus the state fee for non-members, or files free if you're a Rocket Legal+ subscriber, with attorney advice baked into the membership.
- ✓ LLC formation included free with membership; $99.99 otherwise
- ✓ On-demand attorney questions and a large legal-document library through the subscription
- ✓ Registered agent available as an add-on
- ✓ Membership discounts on additional filings and legal services
Pros
Excellent for recurring legal work, smooth document workflow, and attorney access at low per-session rates.
Cons
Pure formation costs more than the $0 services unless you commit to the membership.
Best for: Businesses that will draft contracts and seek legal advice regularly.
Pricing tier: Membership-driven; higher than the free filers on a one-off basis.
Tailor Brands
Best for brand-first launches
Tailor Brands offers a $0 Lite formation plus the state fee, distinguished by its logo, website, and branding tools rather than legal depth.
- ✓ Free Lite formation; Essential and Elite tiers add EIN, operating agreement, and faster filing
- ✓ Annual compliance package is around $199/year
- ✓ AI-assisted logo, website, and social-content builders
- ✓ Business insurance options and a bookkeeping trial (which renews at about $30/month unless canceled)
Pros
Unique branding suite, easy onboarding, all-in-one launch workflow.
Cons
No attorney access; registered agent is only sold alongside formation; reviews are mixed, and several recurring charges (compliance, bookkeeping) appear after you've started the questionnaire. For pure legal and compliance support, ZenBusiness and Northwest are stronger.
Best for: Founders launching a consumer brand who want formation and marketing assets in one flow.
Pricing tier: Free formation; bundled branding and compliance add-ons.
Choosing tax status and staying compliant
Price is only half the decision; the other half is how a service handles taxes and compliance, which is where Illinois founders most often get tripped up. By default, an Illinois LLC is taxed as a pass-through, but many owners elect S-corp treatment to reduce self-employment tax once profits are steady. Doing that correctly is a federal and state exercise. Federally, you need an EIN and a timely IRS Form 2553 election (generally within 75 days of formation or by mid-March for the current tax year), and once you're an S corporation, the IRS expects you to pay yourself a reasonable salary through payroll. At the state level, you register with the Illinois Department of Revenue through MyTax Illinois for any applicable withholding or sales tax, keep your registered agent current, and file the $75 annual report on time to stay in good standing. (Worth noting: Illinois imposes no franchise tax on LLCs, though corporations do face one.)
For understanding the financial side before you commit, the most reliable resources are the Illinois Secretary of State's fee schedule and the state-specific fee guides that ZenBusiness, Northwest, and Bizee publish, which separate one-time filing costs from recurring ones. For the tax-status side, Bizee's free tax consultation, LegalZoom's attorney plans, and ZenBusiness's in-platform EIN and Form 2553 filing all help founders weigh whether an S-corp election actually pays off for their numbers. The practical advantage of a service with a compliance dashboard is that it turns these scattered federal and state requirements into tracked deadlines, so an election you make in year one doesn't quietly lapse into a penalty in year two.
The bottom line
If your goal is the lowest possible price with real support behind it, ZenBusiness is the strongest all-around choice for an Illinois LLC in 2026: free formation, transparent plans, included compliance tracking, and built-in help with the EIN and S-corp election that trip up so many new owners. Pick Northwest if privacy and predictable renewals outrank a $0 sticker, or Bizee if minimizing first-year cash is the only priority — but for the combination of cheap, complete, and genuinely supportive, ZenBusiness is where most Illinois founders should begin.
Ready to form your Illinois LLC for $0 + state fee?
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Start Your LLC with ZenBusinessFrequently asked questions
What is the cheapest LLC formation service in Illinois?
For the lowest sticker price, ZenBusiness, Bizee, LegalZoom, and Tailor Brands all file your Articles of Organization for $0 plus the Illinois state fee. Bizee is often the cheapest true first-year option because it includes a year of free registered agent service. But the cheapest sticker price isn't always the cheapest first year — once registered agent and compliance renewals are factored in, ZenBusiness offers the best overall value with ongoing support.
How much does it actually cost to form an LLC in Illinois?
Illinois collects a one-time $150 fee to file your Articles of Organization (closer to $153 once the online card surcharge is added), then a recurring $75 annual report fee. Optional costs include $100 for expedited processing and $400 for a Series LLC. These state fees are fixed no matter who files for you, so the real difference between services is what sits on top: registered agent service, EIN, operating agreement, and ongoing compliance support.
Is the cheapest formation service the cheapest first year?
Not always. A $0 formation tier can still cost more over the first year if registered agent service is billed separately, or more in year two when free first-year registered agent renews. Bizee includes free first-year registered agent, making it the lowest first-year out-of-pocket for many founders, while Northwest has the lowest predictable long-term renewals at about $125/year.
Do I need registered agent service in Illinois?
Yes. Illinois requires every LLC to maintain a registered agent with an Illinois street address to receive legal documents. Northwest and Bizee include a year of registered agent service in their formation packages; ZenBusiness bundles it with compliance; LegalZoom and Tailor Brands sell it as a paid add-on. Renewal costs range from about $125/year (Northwest) to $199–$249/year (LegalZoom).
Can these services handle my S-corp election?
Some can. By default an Illinois LLC is taxed as a pass-through, but many owners elect S-corp treatment to reduce self-employment tax once profits are steady. ZenBusiness files an EIN and IRS Form 2553 in-platform on its paid tiers, and Bizee adds Form 2553 filing on its Standard and Premium plans. You generally need to file Form 2553 within 75 days of formation, so handle the election early.