Yes, affiliates on JVZoo do get a commission for upsells. When you promote a product that includes upsells, you earn a commission on each sale. This means you can increase your earnings significantly. You will receive your commission for both the initial product and any upsells purchased by the customer. The commission rates for upsells are often similar to those for the main product. You should check the specific terms for each product to understand the commission structure. Promoting products with upsells can enhance your overall earnings in the JVZoo affiliate program.