Except as otherwise provided in Section 21-30, current taxes shall be payable in 2 equal installments. The collector, when requested by the party paying the taxes, shall receive and receipt for the taxes in installments. The collector shall receive taxes on part of any property charged with taxes when a particular specification of the part is furnished. If the tax on the remainder of the property remains unpaid, the collector shall enter that specification in his or her return, so that the part on which the tax remains unpaid may be clearly known. The tax may be paid on an undivided share of property. In that case, the collector shall designate on his or her record upon whose undivided share the tax has been paid.
35 ILCS 200/20-210