Retirement tax questions

You moved it to a ROTH?  Was the 401K also a Roth?   You will owe tax on the whole amount.  Did they take any tax withholding out of it?  You had to roll it into a Traditional IRA to avoid the tax.  Was it a direct transfer from the 401K or did you get a check and take it to the IRA?   You had 60 days to put it in the IRA.   You will get a 1099R for it.  

Enter a 1099R under

Federal Taxes Tab or Personal (Home & Business)

Wages & Income at the top

 

Then scroll way down to Retirement Plans and Social Security,

Then IRA, 401(k), Pension Plans (1099R) - click Start or Revisit

 

There are 4 boxes.  Be sure to pick the right box for the kind of 1099R you got.

 

If you are filing a Joint return be sure to pick which person it is for.