Definitions for year-end
Random House Webster's College Dictionary
the end of a calendar year.
(adj.)occurring at the year-end:
a year-end sale.
Origin of year-end:
the end of a calendar year
"he had to unload the merchandise before the year-end"
taking place at the close of a fiscal year
On or happening at the end of the year (e.g., late December).
His year-end taxes were supposed to be postmarked by December 30.