I defaulted on a 401k Loan and the investment company sent me a 1099R Form. The total amount of the loan was $6500 and the Gross Distribution amount on the 1099 form is $4942.51. How much taxes would I have to pay on this and would there be a 10% penalty on the $6500? Also note this 401k was from a company that was purchased by another and they would not allow us to roll over the amount from the existing 401k. We had to pay the loans back on our own, so they were no longer being auto deducted from our paycheck. It just got away from me. Please advise on what type of penalty I am facing because of this. Thank you.