New York vs Illinois LLC Formation 2026: Costs, Taxes & Compliance
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Introduction: Quick Verdict and Key Differentiator
Illinois wins on formation cost and speed. You'll pay $150 to file in Illinois versus $200 in New York—a $50 difference that compounds when you factor in New York's mandatory publication requirement (estimated $500–$2,000+ depending on county newspapers). Illinois requires no publication; New York mandates six weeks of newspaper notices in two designated papers, filed within 120 days (N.Y. Ltd. Liab. Co. Law § 203). Both states allow single-member LLCs and online filing, but Illinois's streamlined process and lower upfront expense make it the faster, cheaper entry point for most business owners.
However, New York dominates long-term compliance costs. New York's Biennial Statement costs $9 every two years (N.Y. Ltd. Liab. Co. Law § 203), while Illinois requires a $75 Annual Report every year (805 ILCS 180/50-1). Over 10 years, New York costs $45 in compliance fees; Illinois costs $750. Illinois offers series LLCs—a structural advantage New York cannot match—allowing you to compartmentalize liability within a single filing (805 ILCS 180/37-40). New York forces separate LLC filings for each liability compartment.
| Dimension | New York | Illinois |
|---|---|---|
| LLC Filing Fee | $200.00 | $150.00 |
| Formation Statute | N.Y. Ltd. Liab. Co. Law § 203 | 805 ILCS 180/5-5, 180/5-40 |
| Publication Required | Yes (6 weeks, 2 newspapers) | No |
| Publication Estimated Cost | $500–$2,000+ (varies by county) | $0 |
| Standard Processing Time | Minutes (online); workload-dependent (mail/in-person) | ~10 business days |
| Expedited Options | 24 hrs (+$25), same day (+$75), 2 hrs (+$150) | 24 hrs (+$100) |
| Operating Agreement Required | Yes (N.Y. Ltd. Liab. Co. Law § 417) | No (805 ILCS 180/15-5) |
| Minimum Members | 1 | 1 |
| Online Filing Available | Yes | Yes |
| Foreign Owners Allowed | Yes | Yes |
| Series LLC Available | No | Yes (805 ILCS 180/37-40) |
| Biennial/Annual Report Fee | $9 (every 2 years) | $75 (every year) |
| 10-Year Compliance Cost | $45 | $750 |
Choose New York if: You operate a single business line, can absorb $500–$2,000 in publication costs upfront, and want the lowest long-term compliance burden ($9 biennial filings). New York's graduated income tax (3.9%–10.9%) may also benefit lower-income LLCs compared to Illinois's flat 4.95% rate.
Choose Illinois if: You want the lowest initial filing fee ($150), need a series LLC structure for multiple ventures, prefer no mandatory operating agreement, and can manage $75 annual reports indefinitely. Illinois's flat 4.95% income tax rate (vs. New York's graduated scale) simplifies tax planning for mid-to-high-income businesses.
FAQ: Three Essential Questions for New York vs Illinois LLC
1. What are the actual formation costs and timelines?
Illinois offers faster, cheaper LLC formation. You'll pay $150 in Illinois versus $200 in New York—a $50 difference. Illinois processes standard filings in about 10 business days (805 ILCS 180/5-5), while New York acknowledges online filings within minutes but provides no guaranteed standard timeline. However, New York's publication requirement—publishing notice in two newspapers for six consecutive weeks (N.Y. Ltd. Liab. Co. Law § 203)—adds significant hidden costs that vary by county, often exceeding $500. Illinois requires no publication.
New York's publication process works as follows: You must publish a notice of formation in two newspapers designated by the county clerk, once weekly for six consecutive weeks. You then file a Certificate of Publication with the Department of State within 120 days of filing Articles of Organization. Publication costs depend entirely on newspaper rates in your county. New York City newspapers charge $300–$800 per publication; upstate papers may charge $100–$300. Six weeks of publication in two papers typically totals $500–$2,000 statewide.
Illinois eliminates this requirement entirely. You file Articles of Organization, pay $150, and wait 10 business days. No publication, no additional filings, no hidden costs.
| Cost/Timeline Factor | New York | Illinois |
|---|---|---|
| Filing Fee | $200.00 | $150.00 |
| Expedited Fee (24 hours) | $25.00 | $100.00 |
| Expedited Fee (Same Day) | $75.00 | N/A |
| Expedited Fee (2 Hours) | $150.00 | N/A |
| Publication Required | Yes (6 weeks, 2 newspapers) | No |
| Publication Estimated Cost | $500–$2,000+ (varies by county) | $0 |
| Standard Processing Time | Minutes (online); workload-dependent (mail/in-person) | ~10 business days |
| Total Formation Cost (Standard) | $700–$2,200 | $150 |
| Winner | Illinois | — |
Illinois wins decisively on formation cost. You save $50 on the filing fee and eliminate the mandatory publication requirement entirely, which can cost $500 or more in New York depending on your county and newspaper rates. If you need expedited processing, New York's $75 same-day option beats Illinois's $100 24-hour fee, but this advantage disappears for standard filings.
2. What are the ongoing compliance and tax obligations?
New York requires biennial filings; Illinois demands annual filings—a significant difference in administrative burden and cost. New York's Biennial Statement costs $9.00 and files every two years (N.Y. Ltd. Liab. Co. Law § 203). Illinois's Annual Report costs $75.00 and files every year before your anniversary month (805 ILCS 180/50-1). Missing Illinois deadlines triggers a $100 penalty after 60 days and administrative dissolution after 120 days of delinquency. New York imposes no separate late fee but marks your LLC as past due.
Over a 10-year period, New York costs $45 in compliance fees ($9 × 5 filings). Illinois costs $750 ($75 × 10 filings). This reverses Illinois's initial cost advantage and makes New York the clear winner for long-term compliance expenses.
State income tax rates differ significantly. New York applies a graduated personal income tax ranging from 3.9% to 10.9% depending on income level (N.Y. Tax Law § 601). Illinois applies a flat 4.95% corporate and personal income tax (35 ILCS 5/201). For single-member LLCs taxed as sole proprietorships, New York's graduated rate may be lower at lower income levels but higher at upper income levels. For multi-member LLCs taxed as partnerships, both states pass through income to members, who pay personal income tax. Illinois's flat rate simplifies planning; New York's graduated rate may benefit lower-income operators.
Illinois also imposes a 1.5% Replacement Tax on partnerships and S corporations (35 ILCS 5/1501), which may apply to multi-member LLCs taxed as partnerships. New York has no equivalent replacement tax.
| Compliance Factor | New York | Illinois |
|---|---|---|
| Report Type | Biennial Statement | Annual Report |
| Filing Frequency | Every 2 years | Every year |
| Filing Fee | $9.00 | $75.00 |
| Due Date | Calendar month of formation/authority (every 2 years) | Before first day of anniversary month (annually) |
| Late Penalty | None (status marked past due) | $100 after 60 days |
| Administrative Dissolution Risk | No | Yes (after 120 days delinquency) |
| Reinstatement Fee | N/A | $200.00 |
| 10-Year Compliance Cost | $45 | $750 |
| State Income Tax Rate | 3.9%–10.9% graduated | 4.95% flat |
| Replacement Tax | None | 1.5% (partnerships/S corps) |
| Gross Receipts Tax | Yes ($25–$4,500 depending on income) | No |
| Winner | New York | — |
New York wins decisively on long-term compliance costs. You file half as often (biennial vs. annual), pay far less per filing ($9 vs. $75), face no automatic dissolution risk, and avoid Illinois's replacement tax. Over 10 years, New York saves you $705 in compliance fees alone. New York's graduated income tax may be higher at top rates (10.9% vs. 4.95%), but the biennial filing schedule and lower gross receipts tax ($25 minimum vs. Illinois's $75 annual report) reduce overall compliance costs for most LLCs earning under $500,000 annually.
3. What structural and liability protections do you get?
Illinois offers series LLCs and low-profit LLCs; New York does not. Under 805 ILCS 180/37-40, Illinois permits series LLCs, allowing you to create separate liability compartments within one LLC—useful for real estate portfolios or multi-project ventures. Each series maintains distinct assets, liabilities, and members while sharing a single formation filing and annual report. New York provides no series LLC option (N.Y. Ltd. Liab. Co. Law contains no series provision). New York forces you to file separate LLCs for each liability compartment, multiplying formation fees and compliance obligations.
Both states require written operating agreements in New York (N.Y. Ltd. Liab. Co. Law § 417) but not in Illinois (805 ILCS 180/15-5). New York's requirement increases upfront legal costs; Illinois's optional approach reduces them. Both offer professional LLCs for licensed professions (attorneys, accountants, architects, engineers) and standard charging order protection against member creditors.
New York allows the Secretary of State to serve as the statutory agent for service of process, eliminating mandatory registered agent costs. Illinois requires a designated registered agent who must be an Illinois resident or authorized business entity with a physical address (805 ILCS 180/1-35, 1-50). This may force Illinois LLC owners to hire a registered agent service if they lack