First of all, 28% of $150,000 is $42,000. I don’t know where you are getting $30,000. Check your calculator.
It is easy to do in your head. 10% of $150,000 is $15,000. Another 10% is $15,000, that is 20% or $30,000. Another 8% is $12,000. $15,000 + $15,000 +$12,000 = $42,000.
I was using simple math. If you use the tax as a percent of income, then the number is $35,293. If married $29,466. I made no mistake. I was keeping the numbers simple because most people do not know how to figure the tax as a percent of income. And, since we don’t know what other income may be involved the tax may be higher.
The point is the loss of wealth and the lost opportunity cost of the tax. Yes you could make it work by netting the account year after year, but why throw away $3,264,364. That is the tax plus LOC. Then you take the compounding lost by netting and the total loss of wealth is $4,297,927. Now remember we are just netting the account to cover the tax. I would assume this person will also make withdrawals to buy things. If he is not careful, withdrawal and netting could deplete the account.
What if the return was 10% instead of 5%. Tax and LOC is $11,247,243 and the loss of wealth is $28,195,555. The annual tax in year 30 is $630,853. This does not take into consideration estate tax as well. If you are trying to pass this wealth on to others, you have a lot of work to do to preserve it.
In financial planning, there is no left wing or right wing. There is no politics in financial planning. There is politics in the formation of the laws, but not the actual planning process.