What is the meaning of I have to hand it you?

"I have to hand it to you" is an idiom that means "I have to give you credit for that" or "You deserve recognition for that." It's used to express admiration or acknowledgement of someone's accomplishment, skill, or effort.

Example:

* "I have to hand it to you, you really nailed that presentation!"

* "I have to hand it to you, you've been working really hard on this project."

The phrase originated from the idea of giving someone something (like a prize or award) literally "in your hand" as a symbol of recognition.