With no other source of Social Security tax being paid (no W-2), an employer contribution of $36,485 implies net profit from self employment of about $188,655. If your net profit is less than that, an employer contribution of $36,485 would be partially an excess contribution.
If in Part I of the Keogh, SEP and SIMPLE Contributions Worksheet line 7a shows $22,500, line 7c shows $7,500, the Maximize box on line 6f is marked or you have $36,485 on line 6e, and in Part III line 1a shows $188,655, you should see a deduction of $36,485 on Part V line 2.
Note that if you have the Maximize box marked, until you enter the $22,500 and $7,500 as Roth contributions, TurboTax will assume that you made those contributions as deductible elective deferrals.
Nothing about 401(k) contributions goes on Form 8606. A 401(k) is not an IRA.
