Should all of my tithe go to the local church?
There's no clear biblical mandate that your generosity has to be in a certain proportion to your church and to other ministries.
As a pastor, if somebody came to me and said, "I'd like to tithe. Where should I give it?" I would say, "Well, I think it's a helpful rule of thumb to say that, considering that this is your family of believers with its own set of needs and that you benefit from the church and give your life to it, starting with a tithe here is a good idea. And from there you can give more here and more elsewhere."
But I would never say, "You must give your tithe to this church." I just don't find it in the Bible. I can't put biblical texts behind it.
When we think about what churches need in order to survive and flourish, I think they need, roughly, a tenth of what their people have, and more. You can feel free to go beyond.
As for me, I give almost everything to the church. I feel so utterly indebted here and thankful here that what I give is almost all here. And then there are the little things I do. Little things at the door or for Prolife causes. I'm writing little checks here and there all the time. But the substance of my giving is at the local church.
I would encourage someone to think through with a pastor what a good basis for giving at the church would be, and then encourage them to lavish everywhere else too.