I have a lot of maaser that I owe but money is tight now. Can I take on volunteer projects that I would normally charge for (pay myself the rate I charge and calculate that as maaser?) The projects I would do would be for nonprofits, mitzva causes that would normally hire someone but don’t have money to pay
You are allowed to do this, and it sounds like a good idea. I general if money is tight for you, it i possible that you don’t have to give maaser at that time.