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iirc, a number of wallets allow you to specify which unspent TX outputs you use.

So if you got tainted coin sent to your address, you could avoid using that UTXO in future TXs.

That might protect you from some scrutiny.

That would work. But then there's also the question if the received transaction counts as taxable income in the jurisdiction of the receiver. If that's the case and if they received a very significant amount they would be forced to sell some of the coins so that they can pay the tax for them.

> a number of wallets allow you to specify which unspent TX outputs you use.

Yep, this is referred to as “coin control”

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