Tiny but still an error: Two W2s: 40889.66 + 40598.77. TurboTax added them to 81489.00, but it should be 81488.43 rounded to 81488. How can I report this?

[xmasbaby0 · Accepted solution]

Not sure why you fretting over this----but each of those amounts is rounded before they are added to each other.  So......

40889.66 rounds to 40890

40598.77 rounds to 40599

Add them                   81489

[VolvoGirl]

So you can leave the cents off one of them to make it round right.  

[TLMurray74]

Ahh, so the software rounds first. The thing that saves this argument -- round before adding -- is that's what the government does. Add the numbers (at the left side) 12 times. Add them while rounding each one, then do it again and round at the end:

• Round each 1.0 > 12.0 > 12
• Round at end 1.1 > 13.2 > 13
• Round each 2.0 > 24.0 > 24
• Round at end 1.9 > 22.8 > 23

I was fretting over it because an error is still an error, and such a difference -- whether an actual error or it's that way because of methodology -- could land you in a different tax bracket.