An annuity purchase with funds from a 401(k) plan is a qualified annuity only if it is purchased within the 401(k) or is purchased as an IRA annuity with a rollover from the 401(k). If an annuity is purchased with funds from a 401(k) that were, say, an RMD from the 401(k) and therefore not eligible for rollover, the annuity would be a nonqualified annuity.
