dmertz
Level 15

Get your taxes done using TurboTax

Yes, TurboTax creates many such errors due to improper handling of rounding.  I suspect that both W-2s show contribution amounts of $xxxx.50, resulting in both getting rounded up.  You can work around the problem by lowering one amount to $xxxx.49.  Otherwise, if TurboTax does not include the "extra" $1 as income on your tax return, you can ignore the message.