I have seen both 'off-limits' and 'off limits' used in the same context. A thing that is off(-)limits is forbidden to be used or otherwise restricted to only some people's usage from my understanding.
I'm asking if I should use a hyphen or not.
I have seen both 'off-limits' and 'off limits' used in the same context. A thing that is off(-)limits is forbidden to be used or otherwise restricted to only some people's usage from my understanding.
I'm asking if I should use a hyphen or not.
When you use it as a compound word you can hyphenate (though as you have discovered, hyphenation is optional)
When you use it as prepostion+noun then don't hyphenate, likewise if "off" is part of a phrasal verb.
The forbidden forest is off-limits (or off limits) to all students.
We have taken off limits on the number of people who can meet inside.