On rare occasions I have found such discrepancies in the past as well. (I do not remember whether it was Block or TurboTax, but I do recall a significant difference between what showed on the screen and what printed out in a fairly obscure NY tax form for self-employed folks who lived outside NYC but had unincorporated business income earned inside the city.) This caused some not-fun correspondence with NYC tax auditors, but was eventually straightened out. There was a less obscure issue that did not affect me but received a good bit of publicity a few years ago that involved the answer to a question on the Federal education tax credit form--this involved many software providers and was apparently the result of a miscommunication about how blanks vs. zeros would be interpreted on a particular question.vtMaps wrote: ↑Tue Nov 05, 2019 8:31 am I have found discrepancies in what HR Block shows on my screen, and what it prints out. Therefore I do not efile state or fed. When I submit a paper tax return and keep a photocopy I know with absolute certainty what the government receives. If I efile, I am not certain what info is sent to the government. I know that the tax software asks for info that does not get printed on a paper return. Some of that info is sent to the government when you efile.
I discussed this general issue with a senior IRS official who was extremely knowledgeable about electronic tax administration. He noted that if you paper file, a low level temporary IRS employee will transcribe your paper return into IRS computers. There are error-checking protocols but the manual transcription error is still significant.