The main origin of oseibo is the custom of presenting gifts to parents to honor the spirit of ancestors at the start of a new year. Traditionally, people sent oseibo gifts around December 13, the start of preparation for the New Year. Nowadays, the oseibo period is anytime during the month of December, although most people try to send the gifts so they arrive by the 20th. People usually send to parents, relatives, friends, acquaintances, teachers and go-betweens.
Many businesses also give to their clients.
Gifts usually cost 3,000 to 5,000 yen. Other popular oseibo items include meats such as ham and sausages, beer and confectionery. Gift certificates, beer certificates and cooking oil are also welcome.