Temporarily used 401 funds in 2019, paid it back within 6 months, now my income is highly inflated thru 1099 R which I did not receive and have huge tax liability

[DoninGA]

If you did not receive a Form 1099-R how is it on your tax return?

A loan from a 401(k) is not reported on a tax return and you would not have received a Form 1099-R, unless this was not a loan but a distribution.

[VolvoGirl]

Sorry you had to put it back in within 60 days.  It is now a distribution.  Unless you got a loan.  Did you get a 1099R for it?  How did they let you replace it after 60 days?  Sounds like a loan.  If you didn't get a 1099R for it why are you entering it on your tax return?