Are you saying you contribute to a SOLO 401K outside of the partnership ? If so your original posting would make sense and the K-1 without a box 13 entry would also make sense.
To get to the section where you can enter information for your individual 401k contribution, use these steps:
• On the top row of the TurboTax online screen, click on Search (or for CD/downloaded TurboTax locate the search box in the upper right corner)
• This opens a box where you can type in “self-employed retirement” (be sure to enter exactly as shown here) and click the magnifying glass (or for CD/downloaded TurboTax, click Find)
• The search results will give you an option to “Jump to self-employed retirement”
• Click on the blue “Jump to self-employed retirement” link and enter your information
