Incorporating in Delaware vs. Illinois: Which State Is Right for You?

For most business owners, the better choice is the state where you live and run your business. Delaware has real advantages for larger businesses seeking outside investment, but Illinois is usually the more practical and cost-effective option if you're based there and not planning to raise venture capital.

Delaware is the most popular state for incorporation in the U.S. — more than two-thirds of Fortune 500 businesses are incorporated there, and more than 93% of Initial Public Offerings have historically been for Delaware-registered corporations. That reputation comes from Delaware's well-developed corporate law, its specialized Court of Chancery, and the flexibility its statutes give to investors and shareholders.

Delaware charges a flat annual franchise fee that doesn't vary with a business's income, which appeals to larger businesses with complex ownership structures. Its corporate laws are also among the most predictable in the country, which matters when you're negotiating with institutional investors or preparing for an IPO.

That said, Delaware's advantages are built for a specific kind of business. If you're not raising outside capital, not planning an IPO, and not operating a large corporation, most of those benefits won't apply to you.

If you live in Illinois and run your business there, forming in Delaware creates more work, not less. You'd still need to register as a foreign LLC in Illinois to legally do business there — which means paying Illinois's registration fees on top of Delaware's. You'd be maintaining two state registrations, two sets of annual filings, and two registered agents.

The double-registration situation catches a lot of first-time business owners off guard. The savings Delaware offers on paper can disappear quickly once you factor in the cost of staying compliant in both states.

For a small business owner who lives in Illinois, runs operations in Illinois, and isn't seeking venture capital, forming in Illinois is the cleaner path. You file once, pay one set of fees, and deal with one state's requirements.

Here's how the two states compare on the numbers that matter most when you're deciding where to form your LLC.

Filing costs

• Delaware LLC state filing fee: $90

• Illinois LLC state filing fee: $150

• Delaware expedited filing fee (3 business days): additional $100

• Illinois expedited filing fee (1 business day): additional $100

Illinois costs $60 more to file upfront, but if you're based in Illinois and form in Delaware, you'll also pay Illinois's foreign LLC registration fee to do business in your home state — which wipes out any cost advantage Delaware might have offered.

Processing times

• Delaware standard processing: approximately 5 weeks

• Illinois standard processing: approximately 3 weeks

• Delaware expedited processing: 3 business days

• Illinois expedited processing: 1 business day

Illinois is faster on both standard and expedited timelines. If you need your LLC approved quickly, Illinois has a clear edge.

Taxes and ongoing requirements

Delaware does not impose a state income tax on LLCs that don't do business in Delaware — but if you're operating in Illinois, you'll owe Illinois income tax regardless of where your LLC is formed. Delaware also charges an annual franchise tax and requires an annual report. Illinois requires an annual report as well.

On sales tax: Illinois imposes a state sales tax on physical products and certain services. Delaware has no state sales tax. But again, if you're selling to Illinois customers, you'll collect Illinois sales tax whether your LLC is formed in Delaware or Illinois.

The tax picture rarely changes in Delaware's favor for a business that operates entirely in Illinois. Where you do business determines most of your tax obligations — not where you're incorporated.