checkoff

Etymology
.

Noun

 * 1)  The collection of union dues or other fees from employees via deductions from their wages.
 * 2)  The optional allocation of part of a citizen's income tax towards the presidential election campaign fund.
 * 3)  A tax on sales of agricultural goods in order to finance a generic commodity marketing program.
 * 1)  A tax on sales of agricultural goods in order to finance a generic commodity marketing program.