@Jerry77 , since you say the income appears on Schedule E, I assume that the LLC is a partnership that provides you with a Schedule K-1 (Form 1065). The amount of income from self-employment from this partnership that will support an IRA contribution is the amount reported with code A in box 14 of this Schedule K-1, minus the sum of the deductible portion of self-employment taxes attributable to this business income and any deductible self-employed retirement contribution made from this business income.
I'm not sure what you mean by the income reported on Form 1099-NEC being non-business income since amounts reported on From 1099-R usually represent income from self-employment.
