ABC LLC is a multi-member LLC taxed as a partnership. One member, John, was incorrectly classified as a W2 employee for many years, and is a participant in the company's 401(k) plan. Beginning 1/1/2021, John is receiving guaranteed payments on K-1 instead of W-2. Is John able to continue to participate in ABC's 401(k)? There has been no match or profit-sharing in the past though there may be in the future. If so, how does this happen? Does John need to set up his own corporation or LLC to receive the guaranteed payments, and to be the participant in ABC's 401(k)? If he is eligible, will he then contribute once a year to the 401(k)?