Selling or buying a home in Illinois involves a transfer tax paid via the real estate transfer declaration. The state and county rates are modest, but municipalities like Chicago add their own much larger tax. This calculator combines all three so you know the full cost of recording the deed.
How it works
Illinois transfer tax is charged per $500 of consideration, rounded up to the next full $500. The state and county rates are fixed statewide; the municipal rate varies:
units = ceil(sale price ÷ 500)
state tax = units × $0.50
county tax = units × $0.25
municipal = units × (your local per-$500 rate)
total = state + county + municipal
Statewide that is $0.75 per $500 (0.15%) before any municipal tax. Most Illinois towns have no municipal transfer tax, but home-rule cities do, and Chicago’s is substantial, so enter its per-$500 rate when it applies.
Example
A $300,000 sale is 600 units of $500. The state tax is $300, the county tax is $150, for $450 combined where there is no municipal tax. In a city that adds $3.00 per $500, the municipal portion alone would be $1,800.
Notes
This estimate assumes a standard sale with full consideration. Exempt transfers (gifts, certain spousal transfers, corrective deeds) may owe nothing. Buyer/seller responsibility for each portion is set by the contract and local ordinance.