Starting a 501(c)(3) in Chicago, restructuring a foundation, dealing with an IRS audit, planning a charitable bequest, registering with the Illinois Attorney General, or running into a UBIT or private inurement issue? The firms below handle formation, IRS rulings, governance, board fiduciary advice, charitable solicitation, mergers between nonprofits, and tax-exempt compliance for Illinois public charities and private foundations.
Updated August 16, 2025
Chicago has one of the largest nonprofit ecosystems in the country. The University of Chicago, Northwestern, Loyola, DePaul, Field Museum, Lincoln Park Zoo, Lyric Opera, Art Institute, Shedd, and Adler Planetarium are anchor institutions. Add the MacArthur, McCormick, Joyce, and Pritzker Traubert foundations, plus hundreds of mid-sized social-services organizations, religious institutions, healthcare nonprofits, and a long tail of community-based 501(c)(3) and 501(c)(4) organizations. A Chicago-specialist nonprofit bar built up alongside this base.
Six recurring situations bring Chicago nonprofits to counsel. First, formation — a founder is taking a project from a fiscal sponsor into a standalone 501(c)(3), or an LLC realizes it needs to convert to a nonprofit corporation. Second, IRS interaction — Form 1023 questions during the determination process, an examination notice on a Form 990, or an unrelated business income (UBIT) audit. Third, governance — restructuring the board, drafting an updated conflict-of-interest policy, addressing an excess benefit transaction or whistleblower complaint. Fourth, transactions — affiliation between two nonprofits, joint ventures with for-profits, asset transfers to a related foundation, or charitable gift planning involving life income arrangements. Fifth, employment and program contracts — most are routine, but program-related contracts with private foundations, government contracts, and pass-through grant agreements have nonprofit-specific compliance dimensions. Sixth, dissolution — proper distribution of assets to other 501(c)(3) organizations as required by IRC § 501(c)(3) and Illinois law.
Illinois adds a layer of state oversight that surprises out-of-state founders. The Illinois Attorney General's Charitable Trust Bureau supervises charitable solicitation under the Solicitation for Charity Act and the Charitable Trust Act. Annual financial reports (Form AG990-IL with audited financials, reviewed financials, or unaudited financials depending on revenue thresholds) are due each year. The Illinois Department of Revenue handles state exemption recognition (separate from federal). Property tax exemption for nonprofit-owned real estate requires a separate Illinois Department of Revenue ruling. Charitable gaming (raffles, bingo) requires Illinois licensing under the Charitable Games Act.
The right time to talk to a Chicago nonprofit lawyer is before filing Form 1023, not after — and ideally before drafting the Illinois articles of incorporation, because the IRS asks for those articles to contain specific exempt-purpose and dissolution clauses. Get the documents right the first time.
Chicago office of the merged national firm (formerly Schiff Hardin's nonprofit team). Over 70 years of representing tax-exempt organizations across the nonprofit sector. Strong on private foundations, large public charities, associations, healthcare nonprofits, religious institutions, and complex transactions between exempt organizations. Default short list for substantial Chicago foundations and universities.
Chicago office of the multistate firm. Tax-Exempt Organizations Group has experience across the operations and objectives of tax-exempt clients, with particular strength in private grant-making foundations, healthcare exempt organizations, and education institutions. Strong on UBIT analysis, intermediate-sanction work, IRC § 4945 expenditure responsibility, and foundation co-investments.
Chicago boutique with substantial nonprofit and religious-institutions practice. Handles formation documents, federal and state tax-exempt applications, Illinois charitable registration, ongoing operations counsel, real estate, employment, and litigation for nonprofit clients. Good fit for mid-sized Chicago nonprofits that need responsive, sector-specific counsel without BigLaw rates.
Chicago law firm with concentrated tax-exempt practice. Represents organizations ranging from small local associations through internationally operating tax-exempt entities. Strong fit for startup nonprofits, fiscal sponsorship arrangements, and small-to-mid-budget organizations needing 501(c)(3) formation and ongoing tax-exempt compliance counsel.
Form 1023-EZ filing (smaller eligible nonprofits). Legal fees $1,500-$3,500 plus the $275 IRS user fee. The shortest path for organizations expecting under $50,000 in annual gross receipts.
Full Form 1023 filing (most public charities and private foundations). Legal fees $3,500-$8,000 for a clean application; $8,000-$20,000+ for complex matters (private foundations with unusual operating structures, healthcare organizations, fiscally sponsored projects spinning out, religious institutions with mixed activities). IRS user fee: $600.
Illinois Attorney General CHAR01 charitable trust registration. $500-$1,500 legal, with state filing fees of a few hundred dollars.
Annual filings (Form 990, AG990-IL). $1,500-$5,000/year for legal review and assistance, depending on org size. Audited financial statements are separately required above the AG's revenue threshold and are a CPA cost, not a legal cost.
Governance projects (bylaws update, conflict policy, whistleblower policy). $2,500-$10,000 as a discrete project.
Nonprofit M&A / affiliations. $25,000-$150,000+ depending on size and regulatory complexity. Healthcare nonprofit deals add IRS exempt-status, Stark, and state charitable-asset review layers.
IRS audit defense. $25,000-$200,000+ through closing agreement, depending on scope.
Hourly rates. Top-tier Chicago tax-exempt practices: $525-$975. Mid-market and boutique: $295-$595.
Illinois nonprofit incorporation: 2-5 business days if filed online with the Secretary of State.
IRS EIN: same day using IRS online application.
Bylaws + conflict-of-interest policy + board minutes: 2-4 weeks with engaged founders.
Form 1023-EZ determination: 4-8 weeks from filing.
Form 1023 (full) determination: 4-10 months from filing; faster for clean applications, longer when IRS issues additional development letters.
Illinois Attorney General registration: 30-90 days from filing.
Illinois state sales/use tax exemption (E-number): 4-8 weeks after federal determination.
Property tax exemption ruling (Illinois Department of Revenue): 3-12 months depending on the local board of review and the parcel's use history.
Tell us briefly about the organization and what you're trying to do. We route a confidential request to the best-fit Chicago firm in our directory.