Skip-row planters, which allow corn to be planted in 30-inch rows and soybeans to be planted in 15-inch rows, have become relatively popular in Illinois within the last several years. In this article, additional costs associated with skip-row planters are examined. Specifically, additional costs associated with skip-row planters are stated on a per acre basis for each acre planted to soybeans. Costs are examined for 12-row and 16-row planters on farm sizes ranging from 1,000 acres up to 1,800 acres. Results indicate that skip-row planters add between $3.62 and $7.90 per acre for each acre of soybeans planted.