Most Illinois business sellers focus on the broker commission when thinking about sale costs, but there are several additional costs that reduce net proceeds. Planning for total closing costs before going to market helps sellers set realistic net proceeds expectations and avoid surprises at the closing table.
Standard Closing Costs for Sellers
Business broker commission: 8–12% of total transaction value for most Illinois small business sales. Attorney fees: $3,000–$10,000 for a business attorney to draft and review the purchase and sale agreement, bill of sale, non-compete agreement, lease assignment, and closing documents — more complex transactions cost more. CPA fees: $1,000–$5,000 for financial due diligence support, SDE recast preparation, and tax planning advice. Illinois proration: any property taxes, lease prepayments, or utility deposits are typically prorated at closing.
Costs That Vary by Business Type
Environmental assessment (gas stations, dry cleaners): $1,500–$15,000 depending on Phase I and Phase II requirements. Healthcare practice regulatory fees (IDPH licensing, credentialing): $500–$3,000. License transfer fees (liquor licenses, DCFS childcare): varies by municipality and license type. Equipment appraisal (heavy equipment, specialized manufacturing): $1,000–$3,000.
Total seller-side closing costs for a well-run $1M transaction typically range from $80,000–$130,000 (broker commission plus professional fees). For a $500,000 transaction, total costs may be $50,000–$70,000. Net proceeds planning should use these estimates to set realistic expectations from the first conversation with your broker.
Recast Seller’s Discretionary Earnings, then apply a planning multiple for this Illinois business. Replacement labor is subtracted. This is a planning tool, not an appraisal.
Before debt, working-capital peg, holdback, and tax. Educational only.
What this Illinois guide is for
Business Sale Closing Costs Explained for Illinois Sellers is a working answer for owners and buyers. We will not invent a statewide average sale price. We will show the earnings math, the Illinois clocks that delay a close, and the questions a serious counterparty will ask.
Marketplace context from BizBuySell’s Q2 2026 Insight Report (median reported sale $349,250, 2.7× cash-flow multiple, 14% of owners with a professional valuation) is context — not your quote.
Documents to gather this week
- Three years of signed business tax returns and matching P&Ls
- Year-to-date P&L, balance sheet, and three months of bank statements
- Current lease, amendments, and a plain-English remaining term
- License and permit list, including who holds each card
- Top-customer concentration (names redacted until an NDA)
A simple Illinois close calendar
Plan six to twelve months from cleanup to close on a prepared Main Street deal. Start CBS-1 and any Chicago or Cook notices at letter-of-intent, not the week of funding. Landlord consent often takes longer than the lender.
Related pages on this site
Educational only — not legal, tax, or a formal appraisal. Confirm bulk-sale notices, licenses, and tax allocation with counsel and a CPA.
Questions
No. This is education and planning math. A professional opinion of value is a confidential conversation. We work on a success fee if you engage a sale process. There is no file-upload portal.
Start with adjusted seller’s discretionary earnings, then a vertical planning band. A marketplace average is context, not your quote.
Personal professional licenses do not transfer. Municipal registrations and state notices have their own calendars. Confirm the path before you grant exclusivity.
Most prepared Main Street sales take about six to twelve months from cleanup to close. License transfers, landlord consent, and SBA underwriting add weeks.
CBS-1 is the Illinois bulk-sale notice. File it at least ten business days before an asset transfer that meets the statute. Late filing can put Illinois tax risk on the buyer.