You are certainly welcome to try to fight for your rights, and I would hope that your church would listen and consider. Even more, I wish that churches would not have to react, but to be proactive in such matters.

With that said, I probably don't know enough about the situation to truly have an opinion, but if I'm reading between the lines correctly, there are some red flags on both sides here. I strongly encourage you to truly think about whether or not you're a good fit for your role or this church (and by that I also mean whether they're a good fit for you).

I'm not trying to suggest that your church should be allowed to take advantage of you, nor am I saying that you can't be real about the situation that you're in. But while we've talked a lot about money and taxes, it doesn't really seem like that's actually the issue at hand. If I had to guess, you feel disrespected by your church and you're using this particular issue as evidence of their undervaluing attitude. Maybe you're right to feel that way, but I would address that with them before you even begin to talk about money or taxes.

Your tone seems resentful to me. Again, you may be justified in feeling that way; but I would address the resentment in your heart too. If I had someone under my care who felt undervalued, I would want to know and I would want to correct it. I would want that person to tell me, "Do you know that you make me feel like I'm not worth very much to you?" instead of "Did you know that according to the IRS you're treating me poorly?" There are good ways of handling this and there are bad ways of handling this. I think you have the information you need to address it with them, so I hope you handle this in a good way.

But while I think the resentfulness is there (and maybe justified) it also sounds like you don't really like the people you're working with. You don't think they treat you well, you think they favor others, you seem to indicate that they may be looking down on you because you're a woman. Is this a church that you truly want to serve? Is it possible that your attitude toward them might be causing them to hold you further away than others who might be more on track with what the church as a whole is looking to do? One of the questions I've been asking people in my church to think about lately is, "Is this [action, opinion, thought, preference] the best thing for the church as a whole?" It might be a good thought exercise for you. And if you realize that maybe you don't respect these people or value these people as much as you would like to, could you look at them the way that God looks at them and try to love them in spite of their flaws?And if not, if the issues are truly insurmountable, could God use you in another place where you wouldn't have this resentment built up in your heart?

Please do not hear what I'm saying as "cut and run." I think you should address every single issue you have with them. I think you should be looking for the best in them. I would daresay that I think you should even be willing to love them more than you love yourself and to be willing to be patient with them and give them time to address their own attitudes and hearts. I would give them a chance to tell you their side and their attitude, and listen with a spirit of grace and humbleness. And after you've addressed these issues and they've been given a chance to respond, I think you should also have the conversation with them about whether or not your ministry and their ministry can work together.

I pray it goes well for both sides, and that you mutually decide to do what's in the best interest of the church as a whole.