Phrases Negotiation and Bargaining Phrases

My bottom line is...

B2

Meaning

Stating one's absolute limit or non-negotiable point.

Example sentences

John: We can discuss the terms further.

Alice: My bottom line is, I won't accept anything less than $10,000.

John: Let me see what I can do.

Alice: Please do, but remember, my bottom line is $10,000, non-negotiable.