How are profit interest units taxed?
A properly structured profits interest is not taxable on grant, because at grant it carries no right to existing partnership capital — only to future appreciation. Revenue Procedure 2001-43 provides the safe harbour under which the holder is treated as a partner from the grant date and the interest is not a taxable event, provided the conditions are met. Thereafter the holder receives allocations of partnership income reported on a Schedule K-1, and the character of that income follows the partnership's underlying items rather than being converted to wages.
Sources: revproc-2001-43 · reg-721-1 · irs-pub-541 · states no value