Together 10 years: M(48) F(47) We tell people we're married, but we're not and M(48) doesn't want to. Why?

I am a 47 year old woman. I've been with my 48 year old male partner for 10 years. We have a 5 year old daughter. We had a marriage ceremony with my family 8 years ago but my partner did not want to file the marriage certificate because he said it would cost us too much on taxes. He calls me his wife and I call him my husband. We wear wedding rings. When I had our daughter I left a really successful career to be home with her because he pressured me to do so after I had her. I finally got a part time job back in my field and can move to full time when our daughter starts kindergarten. (His wealth has grown since we've been together and my world has shrunk.) Now he wants to move. I told him I'm not comfortable moving and leaving my job unless we are legally married. I've told him this before and he gets very angry. He says- "you're all about the money, aren't you?" But I'm thinking- what are we doing here? We're playing house but he doesn't actually want to marry me. I don't even know what my response should be because I'm so floored. He's not always a nice guy. We are already together for 10 years. He likes to tell pretend we are married and I make him look good. But he doesn't want to actually give me the security of being in a committed relationship? help
TDLR!: To summarize: We're together 10 years. Tell everyone we're married. Legally we aren't and when I tell him we should be legally married- he gets mad and says I'm all about the money. (He's not rich lol) What should I say to him?
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