Bimonthly / Twice monthly / Every two months
UsageBimonthly can mean every two months or twice a month. Write the intended frequency explicitly.
Bimonthly
Use when
Only when your audience has an established convention or the schedule is immediately clarified.
Example
“The bimonthly report is issued every two months.”
Twice monthly
Use when
You mean two times in each calendar month.
Example
“Payments are processed twice monthly, on the 15th and final working day.”
Every two months
Use when
You mean once in each two-month interval.
Example
“The steering committee meets every two months.”
Quick check
bimonthly without clarification, twice monthly treated as every two weeks, ambiguous payment schedule
Usage note
Twice monthly is not identical to every two weeks: a twice-monthly schedule has 24 occurrences a year, while an every-two-weeks schedule usually has 26.