Why is the tax proration so large? In Illinois, property taxes are paid after the year they're owed. When you sell, you reimburse the buyer for your share of those unpaid taxes. This credit typically covers 12-17 months depending on your closing date.

Pricing to sell saves you money. Every month your home sits on the market, you pay mortgage interest, property taxes, and insurance that you never recover. The chart above shows how these holding costs add up.