Thanks for helping us try to figure this out! We only contributed as the participant (not employer). We were encouraged to do this by a tax adviser last year, but this is the first year we've made such a contribution. According to the IRS website, it should be acceptable:
https://www.irs.gov/retirement-plans/one-participant-401k-plans
Also, no matter what amount we put in as our contribution (be is $500 or $50,000), the federal tax due amount never changes. The state does, but not federal. Thoughts?
