If your self-employed retirement plan is a one-participant
401k plan, you can contribute to the plan both as an individual and as an employer.
Take a look at the IRS information for One
Participant 401k Plans – it gives a good explanation and some examples for
a better explanation.
Taking a closer look at the screenshot you attached, y
ou were able to tell TurboTax that $20K had already been
contributed. However, based only on the screenshot, there was not an
entry made to indicate that the employer match amount has already been
contributed. Therefore, the bottom line is telling you that $37,904
needs to be contributed by the due date. Out of that $37,904, $20K is
for the employer match and the other $17,904 is for the employee.
[edited 3/6/18 | 10:55 am PST]
