the insurance disbursement is not taxable (unlike say a retirement fund that is disbursed upon death). However, the inheritance IS taxable under standard income tax rules. The difference is that with, say a retirement fund, that amount IS taxable and NOT under standard income tax rules but under the retirement plan rules.
So if an insurance policy were disbursed to say 10 individuals, the taxation effect that policy would have on all 10 of them would be entirely dependent on their incomes etc. But if a retirement plan policy were disbursed to 10 individuals, they would all be affected by taxes on the plan in the same way.
for a real life example, my dad died a few years back (which is how I know all of this). He had two disbursements (guess which two
). The retirement fund had a taxation upon release, the insurance did not. Then one of my siblings who is not working owed FURTHER taxes in the next tax year on the retirement fund money he got but did not owe ANYTHING on the insurance money he got.