Can My (19f) Parents Take My Tax Refund Even Though They Can’t Claim Me As A Dependent?

I’m 19, working full-time, and living at home to save as much money as possible. I have a college degree that my parents did not pay for, and while I do pay a small rent fee, my parents have always covered most of the other living costs without asking for additional money. This has been the long-term understanding, and I’ve offered multiple times to contribute more (for rent, groceries, bills, etc.), but they’ve always declined and assured me there were no strings attached.

Now, tax season is here, and my dad told me he can’t claim me as a dependent because I make too much money. He said that because of this, he’s “losing money” and that I owe him a portion of my tax refund to make up for it. That immediately felt off to me, so I asked if this was something I had to legally consent to, and he said yes. When I asked if it was a normal thing for parents to do, he didn’t give me a straight answer.

For some context, my dad did extremely questionable things with my money when I was a minor, so I don’t know if I’m being extra suspicious because of that, or if I actually have solid grounds to say no. He framed it as compensation for taking care of me, but my issue is that I only live at home to maximize my savings. If I were paying a significant amount to compensate for my living situation, I’d rather just get my own apartment, which I could easily afford.

Is this normal? Do I actually owe him anything, or is this just an unfair ask? Would love to hear some outside perspectives.