Allocating earn-outs among sellers + earn-out taxes?

September 14, 2021
by a searcher from University of California, Los Angeles - UCLA Anderson School of Management in London, UK
Is there a mechanism to allocate an earn-out in a sale disproportionately amongst the selling shareholders and still have it treated as capital gains?
For example: Two sellers A and B, each a 50% shareholder, but we want 75% of the earn-out to go to seller A and 25% to seller B.
Also, what fiscal year would the earn-out be taxed based on? i.e. suppose the deal is done this year and the earn-out is paid next year, and that there is also a tax increase next year, which tax rate is the seller paying on the earned portion of the deal?
Thank you.
from University of Sydney in Sydney NSW, Australia
from University of Minnesota in Minneapolis, MN, USA