The total cost to sell a house in Illinois usually runs 8% to 10% of the sale price once you add agent commissions, state and local transfer taxes, title insurance, attorney fees, and the property tax credit you owe the buyer. On a $300,000 sale, that is roughly $24,000 to $30,000 off the top before you see any proceeds. Some pieces are negotiable, some are set by statute, and one — the property tax proration — surprises more Illinois sellers than anything else at the closing table.
Agent Commissions Are the Biggest Line
Commissions remain the largest single expense for most sellers. The traditional Illinois setup charged 5% to 6% of the sale price, split between the listing agent and the buyer’s agent, with the seller paying both sides. On a $300,000 home, that meant $15,000 to $18,000 at closing.
That default changed after a national class-action settlement with the National Association of Realtors took effect on August 17, 2024. Offers of buyer-agent compensation can no longer appear on Multiple Listing Service platforms, and buyers must sign written agreements with their own agents specifying a concrete commission amount or rate before touring homes.1National Association of REALTORS®. What the NAR Settlement Means for Home Buyers and Sellers
You are no longer automatically responsible for the buyer’s agent. Offering to cover that side is still a common negotiating tool, especially in slower markets, but it is an explicit decision now rather than a built-in cost. Your own listing agent’s fee is typically 2.5% to 3%, and all commissions remain fully negotiable and are not set by law.1National Association of REALTORS®. What the NAR Settlement Means for Home Buyers and Sellers
Illinois Transfer Taxes
Illinois imposes transfer taxes at up to three levels — state, county, and municipal — and the seller customarily pays them. The state charges $0.50 per $500 of sale price, and counties may add another $0.25 per $500.2Illinois Department of Revenue. Real Estate Transfer Tax Stamp Purchase Forms and Procedures On a $300,000 sale, that is $300 to the state and $150 to the county, for a combined $450 collected through tax stamps affixed to the deed.
Municipal taxes are where the number can jump. Chicago imposes a transfer tax of $5.25 per $500, split between buyer and seller. The buyer pays $3.75 per $500, and the seller pays $1.50 per $500 as a supplemental tax that funds the Chicago Transit Authority.3City of Chicago Department of Finance. Real Property Transfer Tax (7551) On a $300,000 Chicago sale, the seller’s municipal share is $900, pushing total seller transfer taxes to about $1,350.
Many suburban and home-rule communities charge their own transfer taxes with widely varying structures. Some use a flat fee, some use a per-$500 rate, and some charge nothing. Check with your municipality before listing, because a local transfer tax can add $1,000 or more to your closing costs in some communities.
Title Insurance and Closing Fees
In Illinois, the seller customarily buys an owner’s title insurance policy for the buyer. The policy protects the new owner against defects in the title history that surface after the sale. For a $300,000 home, expect roughly $1,900 to $2,000 for the owner’s policy. Illinois title insurance rates are regulated by the Department of Financial and Professional Regulation, with pricing based on a base premium plus incremental charges as property value increases.
Recording fees for the new deed and related documents generally run $50 to $150 depending on the county and document length. A closing protection letter adds another $25 to $50. Individually small, together they add up.
Attorney, Survey, and Inspection Costs
Illinois closings are handled by real estate attorneys, not by title companies alone. Your attorney reviews the purchase contract, drafts the deed, resolves title issues, and represents you at closing. Fees for a straightforward residential closing typically run $500 to $1,500, with the lower end reflecting a clean suburban sale and the higher end covering complications or heavy negotiation.
You will likely need a current survey of the property boundaries, confirming that structures, fences, and driveways sit within the lines and that no encroachments exist. A standard residential survey runs $400 to $700. Buyers sometimes waive the requirement, but many lenders and contracts still call for one, and in Illinois the seller traditionally provides it.
Rural properties or homes not connected to municipal sewer bring extra inspections. County health departments require private septic evaluations and well water testing before the deed transfers, and those usually total $300 to $600. Schedule them early, because they must be completed within a specific window before closing.
The Property Tax Credit You Owe the Buyer
This is the cost that catches Illinois sellers off guard more than any other. Illinois collects property taxes in arrears, so the bills you receive in any year cover the prior year.4Cook County Treasurer’s Office. Why We Pay Property Taxes in Arrears By the time you sell, you have been living in the home and accumulating a tax obligation that has not been billed yet. The buyer will eventually get that bill after you are gone, so you credit them at closing for your share.
Standard practice calculates the credit at 105% to 110% of the most recent full-year tax bill. The percentage exceeds 100% because Illinois assessments tend to rise and the latest bill does not reflect increases that have not been finalized. The buffer protects the buyer from being stuck with the difference. This is custom rather than law, but it is written into nearly every Illinois residential contract.
The dollar impact depends on your tax bill and when you close. Sell a home with a $7,000 annual tax bill in September and you might owe a credit of $5,000 or more, covering roughly nine months at the inflated percentage. In high-tax areas such as Cook County suburbs, where annual bills of $10,000 to $15,000 are common, the credit alone can run into five figures. Plan for it early, because it comes straight out of your proceeds.
Mortgage Payoff
If you still owe on the home, your lender collects the remaining principal, accrued interest through the closing date, and any applicable fees from your sale proceeds. The title company handles the payoff directly, but you need to request a payoff statement from your lender in advance so you know how much of your equity is spoken for.
Prepayment penalties on residential mortgages are rare for loans originated after 2014. Federal rules under the Dodd-Frank Act effectively ban them on most qualified mortgages. Where they are allowed, they are limited to the first three years of the loan and capped at 2% of the prepaid balance in the first two years, dropping to 1% in the third year.5Consumer Financial Protection Bureau. Ability-to-Repay and Qualified Mortgage Rule Small Entity Compliance Guide If your loan is older or non-conventional, check for a prepayment clause before listing.
Capital Gains Tax
Federal capital gains tax can be the largest cost of the whole transaction or none at all. The IRS lets you exclude up to $250,000 in profit from the sale of your primary residence if you file singly, or $500,000 if you file jointly with a spouse. You generally need to have owned and lived in the home for at least two of the five years before the sale to qualify.6Internal Revenue Service. Sale of Your Home
Taxable gain is not simply sale price minus what you paid. You can increase your cost basis with capital improvements that have a useful life of more than one year, such as a new roof, kitchen addition, central air conditioning, or paved driveway.7Internal Revenue Service. Basis of Assets Keep the records. Those improvements reduce taxable gain directly and can decide whether you owe anything at all.
On paperwork, the closing agent is generally required to file Form 1099-S reporting the sale proceeds to the IRS. If the sale price is $250,000 or less ($500,000 for married sellers) and you certify in writing that the home was your principal residence with the full gain excludable, the closing agent can skip the filing.8Internal Revenue Service. Instructions for Form 1099-S (Rev. December 2026) Above those thresholds, the 1099-S gets filed regardless of what you ultimately owe.
Sample Breakdown on a $300,000 Sale
Here is a rough picture for a $300,000 home in a typical Illinois suburb, assuming a 5% total commission and no local transfer tax:
- Agent commissions at 5%: $15,000
- State and county transfer taxes: $450
- Owner’s title insurance: $1,900 to $2,000
- Attorney fees: $500 to $1,500
- Survey: $400 to $700
- Recording and miscellaneous fees: $100 to $200
- Property tax proration credit: varies, often $3,000 to $6,000 or more
Total costs land somewhere around $21,000 to $26,000 before any mortgage payoff, municipal transfer taxes, or repair concessions. Chicago sellers add $900 for the city’s seller share, and sellers in other home-rule municipalities should look up their local rates. The property tax proration is the hardest line to predict in advance, because it depends on your bill, your closing date, and the proration percentage in your contract. Ask your attorney for an estimated net sheet early in the process so the final numbers hold no surprises.