noun
last business day of the year; year-end work completion
Refers to the final working day before the New Year holiday, typically December 28, when work is wrapped up and offices close. Often used in greetings and announcements.
今日は仕事納めで、午後から大掃除をします。
Today is the last business day of the year, so we'll do a big cleaning from the afternoon.
仕事納
On the last working day of the year, everyone appreciates each other's hard work over the past year.