TurboTax Console Logs Everything
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> that a lot of their code is some C code written in 1998
I figure I could remind Ms. Zeng that the real world runs on legacy code. Everything from spaceships to airplanes to the airbag controller in your car that might save your life one day is probably running "some C/Ada/Fortran code written in XX". The hot garbage that is EDA software designing your phone and laptop is probably from the 90s. The code that tabulates your bank account at the end of the day is very likely ancient. There is good reason for all of this. In fact I'd be legit horrified if the code tabulating my taxes was done using some flavor-of-the-week JavaScript library. TurboTax has been around since the 80s-90s so I'd expect the mathematics libraries to be stable and vetted by accountants and unlikely to change.
I'll never use their shit again after this year. I'm so peeved, after importing all my accounts they said I owed $108k when I actually owed $60k. It was totally calculable, but they are lazy scumbag pieces of shit.
Sorry but it's frustrating that they are making so much money and putting in so little effort.
However they have a longstanding and very annoying bug that screws up the deduction when you refinance a mortgage worth over 375k
There's a good rundown of the bug here: https://www.reddit.com/r/personalfinance/comments/lqkcdv/how...
tl;dr is that the mortgage interest deduction is prorated if your mortgage(s) have a total principal > 750k. If you refinanced, TurboTax would do the proration calculation assuming your mortgage were twice as large, because the refinance was being treated as a separate mortgage