The IRS instructions still instruct taxpayers that if you have to do any calculations on two or more numbers you need to use the unrounded numbers and then only round the result. That instruction has not changed and was the crux of the issue last year. Again, AFAICT this issue has been corrected in TT for this tax filing season. The reason I say AFAICT is that when I imported my transactions from my brokerage this year, unlike last year, all the capital gain/loss totals in TT matched exactly with the form I received from my broker. Unlike last tax season when they did not which is why we all got in this discussion in the first place last tax season.
