Does this "30-40% hit" includes taxes already? Because that's the whole point of ML, right? Pretending that money came from legal sources means paying income taxes on them. Your last sentence is confusing in that regard.
That 30-40% is pulled from an earlier comment on the thread. I'm not actually a professional money launderer, nor do I rely on their services, so I cannot give factual current rates.
But to clarify, I meant the 30-40% as a total cost, i.e. I put in 100 dirty dollars and take out 60 clean. You are correct that an income tax would then apply.
If instead I kept the 100 as cash, I could spend the 100, and not pay any income tax.
Staying all cash probably works at the 100 level. Becomes dicey at the 100K level.