Wyoming vs Illinois LLC 2026: Formation Costs, Taxes & Compliance
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Introduction: Quick Verdict and Key Differentiator
Wyoming wins decisively for LLC formation cost and tax burden. You'll pay $100 to form a Wyoming LLC versus $150 in Illinois—a 33% savings before you even operate. More critically, Wyoming imposes zero state income tax while Illinois charges 4.95% on individual income and 1.5% replacement tax on partnership income. This structural tax advantage compounds annually, making Wyoming the clear choice if minimizing ongoing tax liability drives your decision.
| Dimension | Wyoming | Illinois | Winner |
|---|---|---|---|
| LLC Formation Fee | $100.00 (Wyo. Stat. § 17-29-201) | $150.00 (805 ILCS 180/5-5) | Wyoming |
| State Income Tax Rate | 0% (No income tax) | 4.95% individual + 1.5% replacement tax (35 ILCS 5/) | Wyoming |
| Annual Report Fee | $60.00 (Wyo. Stat. § 17-29-209) | $75.00 (805 ILCS 180/50-1) | Wyoming |
| Sales Tax Rate | 4-8% combined (local varies) | 6.25% base + local add-ons | Wyoming |
| Registered Agent Change Fee | $5.00 (Wyo. Stat. § 17-28-101) | $25.00 (805 ILCS 180/1-35) | Wyoming |
| Name Reservation Fee | $60.00 (120 days) | $25.00 (90 days) | Illinois |
| Reinstatement Fee | $100.00 (Wyo. Stat. § 17-29-209) | $200.00 (805 ILCS 180/50-5) | Wyoming |
Wyoming's cumulative advantage exceeds $200 in formation and administrative costs over the first two years, plus you eliminate state income tax entirely. Illinois offers no offsetting benefits—higher fees, mandatory income taxation, and stricter compliance requirements. Choose Wyoming unless you require Illinois-specific business operations or professional licensing restrictions.
Frequently Asked Questions
1. How much does it cost to form an LLC in Wyoming vs Illinois?
Wyoming charges $100 for LLC formation (Wyo. Stat. §§ 17-29-201, 17-29-203), while Illinois charges $150 (805 ILCS 180/5-5). Illinois offers expedited 24-hour processing for an additional $100 fee, bringing the total to $250. Wyoming's standard processing takes up to 15 business days for paper filings; Illinois processes online filings in approximately 10 business days. Both states accept online filings through their Secretary of State portals.
| Cost Component | Wyoming | Illinois |
|---|---|---|
| Standard LLC Filing Fee | $100.00 | $150.00 |
| Expedited Processing Fee | Not available | $100.00 (24-hour) |
| Name Reservation Fee | $60.00 | $25.00 |
| Name Reservation Duration | 120 days | 90 days |
| DBA Filing Fee | $100.00 | $120.00 |
| Formation Winner | Wyoming — $50 cheaper formation |
2. What are the annual compliance costs?
Wyoming requires a $60 annual report (Wyo. Stat. §§ 17-29-209, 17-29-210) due on or before the first day of your anniversary month. Illinois charges $75 annually (805 ILCS 180/50-1, 180/50-5), also due before the first day of your anniversary month. Wyoming's annual report is $15 cheaper per year. Both states impose administrative dissolution if you miss the deadline—Wyoming after 60 days unpaid, Illinois after 120 days from delinquency.
| Annual Requirement | Wyoming | Illinois |
|---|---|---|
| Annual Report Fee | $60.00 | $75.00 |
| Due Date | First day of anniversary month | First day of anniversary month |
| Grace Period Before Penalty | 60 days | 60 days |
| Late Penalty | None (dissolution risk) | $100.00 |
| Dissolution Timeline | 60 days unpaid | 120 days from delinquency |
| Reinstatement Fee | $100.00 | $200.00 |
| Compliance Winner | Wyoming — $15 cheaper annually, lower reinstatement cost |
3. Does either state have income tax?
Wyoming imposes no state income tax, no franchise tax, and no gross receipts tax. Illinois taxes individual income at 4.95% (35 ILCS 5/) and C corporations at 7% plus 2.5% replacement tax. Partnerships and S corporations in Illinois owe 1.5% replacement tax on Illinois-taxable income. Wyoming's zero-tax structure eliminates state income obligations entirely, making it substantially more favorable for business owners seeking tax efficiency.
| Tax Type | Wyoming | Illinois |
|---|---|---|
| State Income Tax | 0% | 4.95% (individuals) |
| Corporate Income Tax | 0% | 7% (C corps) |
| Replacement Tax | N/A | 1.5% (partnerships/S corps) |
| Franchise Tax | None | None |
| Gross Receipts Tax | None | None |
| Sales Tax | 4–8% (combined) | 6.25% (state) |
| Tax Winner | Wyoming — No state income tax eliminates major tax burden |
4. What sales tax rates apply?
Wyoming imposes a mandatory 4% statewide sales tax with local option taxes producing combined rates between 4% and 8% depending on where the customer takes possession. Illinois charges 6.25% state sales tax before local and special district add-ons. Wyoming's base rate is lower, though final rates depend on local jurisdiction. Both states require sales tax registration through their respective revenue departments.
| Sales Tax Component | Wyoming | Illinois |
|---|---|---|
| State Base Rate | 4% | 6.25% |
| Local/Combined Range | 4–8% | 6.25% + local |
| Registration Authority | Wyoming Department of Revenue | Illinois Department of Revenue |
| Sales Tax Winner | Wyoming — Lower base rate (4% vs 6.25%) |
5. Can I operate as a single-member LLC?
Both states allow single-member LLCs. Wyoming requires a minimum of one member (Wyo. Stat. § 17-29-201), and Illinois also permits one member (805 ILCS 180/5-5). Neither state mandates an operating agreement, though both recommend one. Wyoming's default federal treatment is a disregarded entity (Schedule C), and Illinois matches this treatment. You can elect S-corp or C-corp status in both states.
| Single-Member Feature | Wyoming | Illinois |
|---|---|---|
| Minimum Members Allowed | 1 | 1 |
| Operating Agreement Required | No | No |
| Default Federal Treatment | Disregarded entity (Schedule C) | Disregarded entity (Schedule C) |
| S-Corp Election Available | Yes | Yes |
| C-Corp Election Available | Yes | Yes |
| Single-Member Winner | Tie — Both allow single-member LLCs with identical flexibility |
6. What are the registered agent requirements?
Wyoming requires a registered agent who is a Wyoming resident individual or a domestic/foreign business entity authorized to transact business in Wyoming, with a physical Wyoming registered office (Wyo. Stat. §§ 17-28-101 to 17-28-111). Illinois requires an agent who resides in Illinois or is authorized to transact business there, also with a physical address (805 ILCS 180/1-35, 180/1-50). Both allow members to serve as agents. Wyoming charges $5 to change agents; Illinois charges $25.
| Registered Agent Requirement | Wyoming | Illinois |
|---|---|---|
| Residency/Authorization Required | Wyoming resident or authorized entity | Illinois resident or authorized entity |
| Physical Address Required | Yes | Yes |
| Member Can Serve | Yes | Yes |
| Change Agent Fee | $5.00 | $25.00 |
| Consent Required | Yes (written) | No |
| Agent Winner | Wyoming — $20 lower change fee |
7. Can I keep my LLC membership private?
Wyoming allows anonymous LLCs—member and manager names are not publicly disclosed in Articles of Organization (Wyo. Stat. § 17-29-211). Illinois requires disclosure of registered agent, registered office, and manager or member-manager information in public filings (805 ILCS 180/1-10). If privacy is critical, Wyoming is the only option between these two states. Wyoming's privacy advantage extends to federal filings if you use a Wyoming registered agent service.
| Privacy Feature | Wyoming | Illinois |
|---|---|---|
| Member Names Disclosed | No | Yes |
| Manager Names Disclosed | No | Yes |
| Registered Agent Disclosed | Yes | Yes |
| Registered Office Disclosed | Yes | Yes |
| Privacy Winner | Wyoming — Anonymous LLC option available |
8. How do I dissolve an LLC in each state?
Wyoming allows voluntary dissolution by filing Articles of Dissolution (Wyo. Stat. § 17-29-301). Illinois requires filing Articles of Dissolution (805 ILCS 180/35-1). Both states allow member-initiated dissolution. Wyoming charges $100 for reinstatement after administrative dissolution; Illinois charges $200. Neither state specifies a dissolution filing fee, though both require proper notice to creditors and tax authorities.
| Dissolution Feature | Wyoming | Illinois |
|---|---|---|
| Voluntary Dissolution Available | Yes | Yes |
| Reinstatement Fee | $100.00 | $200.00 |
| Reinstatement Statute | Wyo. Stat. § 17-29-209 | 805 ILCS 180/50-5 |
| Dissolution Winner | Wyoming — $100 lower reinstatement cost |
Master Comparison Table: All Dimensions
Formation Costs
Wyoming charges $100 to file Articles of Organization (Wyo. Stat. §§ 17-29-201, 17-29-203), while Illinois charges $150 under 805 ILCS 180/5-5 and 805 ILCS 180/5-40. Illinois offers expedited 24-hour filing for an additional $100. Wyoming's standard processing takes up to 15 business days for paper filings; Illinois processes online filings in approximately 10 business days. Both states allow online filing and effective date selection.
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