Attempting to hide money from authorities is nearly impossible, and also dangerous.  Tax evasion is far more risky than the rewarding.  Don't get me wrong, I firmly believe that taxes are theft, pure and simple.  Nevertheless, governments have the ability to make our lives miserable if we don't play by their rules.

In this day and age, there's nothing you can do to hide money from the global surveillance state, certainly not any significant quantity.  Even if you sell bitcoin for cash on the street, what expensive items are you going to buy with it that won't draw attention?  Sure, you can sell enough to buy groceries, some furniture, and maybe even a used car without drawing too much attention.  But, you can't buy a new car or house with that money.  In the US we have a law that forces banks to disclose to the IRS whenever we deposit $600 of cash or more into our accounts, so there's really nothing you can effectively hide from them except for some pocket money.

Attempting to hide money from authorities is nearly impossible, and also dangerous.  Tax evasion is far more risky than the rewarding.  Don't get me wrong, I firmly believe that taxes are theft, pure and simple.  Nevertheless, governments have the ability to make our lives miserable if we don't play by their rules.

In this day and age, there's nothing you can do to hide money from the global surveillance state, certainly not any significant quantity.  Even if you sell bitcoin for cash on the street, what expensive items are you going to buy with it that won't draw attention?  Sure, you can sell enough to buy groceries, some furniture, and maybe even a used car without drawing too much attention.  But, you can't buy a new car or house with that money.  In the US we have a law that forces banks to disclose to the IRS whenever we deposit $600 of cash or more into our accounts, so there's really nothing you can effectively hide from them except for some pocket money.