I keep seeing the federal 30C tax credit mentioned in basically every thread about apartment charging costs, always as this offhand "and don't forget the tax credit" line, but nobody ever actually explains it in a way that makes sense if you've never dealt with a tax credit before. I do my own taxes with basic software every year and have never claimed anything more complicated than a standard deduction, so all these mentions assume a level of familiarity I don't have. Before I install anything or spend money assuming I'll get some of it back, can someone explain this like I've never claimed a tax credit in my life, because I haven't.
