end of the month
Refers to the last few days of a calendar month. Often used in business contexts for deadlines, payments, or closing accounts. Can function as a noun or adverbially (e.g., 月末に).
Please submit the report by the end of the month.
The end of the month is always busy.
I have to finish the report by the end of the month.
I pay the rent at the end of the month.
This invoice is set to close at the end of the month.