Does a buy-and-sell agreement make estate duty go away?
No — it prevents a double hit and delivers cash. The deceased’s practice interest remains property in the estate and is dutiable at its value.
What the section 3(3)(a)(iA) exemption removes from the estate is the policy proceeds, which would otherwise be deemed property on top of the interest. And because the sale converts the interest into cash, the estate can actually pay the duty (and the final capital gains tax) without a fire sale.