> I worked on tax software and have seen these kind of efforts. Noble, yes. Short lived, yes. I've been using excel1040.com for several years now (2017 iirc),

> I worked on tax software and have seen these kind of efforts. Noble, yes. Short lived, yes. I've been using excel1040.com for several years now (2017 iirc), and I think it's been around for awhile before that as well -- so I don't think it's fair to call it short lived. It's pretty amazing how thorough it is. Not perfect, but I found it much more comprehensive and flexible than the free/cheap version of Turbotax. That said, it is maintained by one crazy guy in Kansas. I doubt the project will survive after he stops working on it.