Imagine this scenario:
Alice is self-employed for the first half of the year. She opens a solo 401(k), contributes $20k in employer contributions, and saves $10k in cash from her earnings. She then changes jobs to a standard W2 job.
Can she make additional contributions to the solo 401(k) (on either the employee or employer side) after ending self-employment? If she can, is there a limit besides the total 401(k) contribution limit ($70k combined employer + employee)? (For instance, the $10k that she had saved up at the time she changed jobs.)
Assume that her income was sufficiently high when self-employed that income limits to employer contributions are not an issue.