10/19/2026
What does it actually cost to start a law firm in Chicago?
Somewhere between $1,200 and $23,400 for year one, and almost all of that range comes down to one question: are you starting cold, or leaving a firm with clients who’ll follow you?
A few Illinois numbers that surprise people:
→ ARDC registration is the only mandatory cost, and it’s free if you were admitted since January 2025
→ If you form an entity, it must be a PLLC, not an LLC
→ Malpractice insurance isn’t required, but a first-year policy often costs under $1,000, and defending even a meritless claim averages about $28,000
→ ISBA membership includes vLex Fastcase, a $695/year value
But the biggest cost isn’t on most startup checklists: operating capital to cover six to twelve months of business and personal expenses.
Read the full breakdown, with four real-world scenarios:
https://bit.ly/4753mKf
Real Illinois numbers: ARDC, PLLC, malpractice, software, space. Four scenarios from $1,200 to $23,400, and the cost every checklist leaves off.