https://www.cnbc.com/2018/06/13/amazon-says-not-many-workers-are-taking-them-up-on-pay-to-quit-offer.html

Once a year in mid-winter, Amazon fulfillment center employees are sent an offer called "pay to quit."

Employees who take the offer get paid based on their years of services to the company, the first year the offer is $2,000 and goes up by $1,000 each additional year until it is capped at $5,000.