within the year; before the end of the year (used to indicate a deadline or time frame within the current year)
このプロジェクトは年内に完了させる予定だ。
This project is scheduled to be completed within the year.
年内発送を目指して準備を進めています。
We are preparing with the aim of shipping within the year.
その件は年内に再度ご連絡します。
We will contact you again about that matter within the year.