I believe God knows everyone's situation and how much they can tithe, but in my opinion, there can be many ways to tithe, You can give money, or you can give back by giving things to others or donating things to churches, donating clothes, giving food to a neighbor in need, buying a homeless person a hot drink on a really cold day, volunteering and I'm sure there are many more ways...but that is just my opinion. I always give what I can, for example, I only get so much money a month, and it doesn't even cover all my bills/rent, but I do get food stamps and my church is having a thing called trunck or treating, which is where people can bring their kids to the church for a safe place to go trick or treating and there are so many people parked in the parking lot all over the church to hand out candy from their trunk...so I went out and bought I think about 8 or 10 bags of candy to donate to the cause. It's not much, but I was happy to be able to help