[... some income are not taxable especially if they come from second hand stuff, also below a certain amount you are not taxable at all no matter what you are doing
Again this is for the U.S. and for income tax purposes: some income is not subject to tax like interest on municipal bonds, however there is no de minimis exception on income that is otherwise taxable including selling second hand stuff at a profit. There are de minimis thresholds for reporting income if you are a payor. For example a bank or brokerage firm doesn't need to give you a 1099 if your account earned less than $10. That doesn't mean your nominal interest income isn't taxable, it just means that the bank doesn't need to report it to you or the IRS.
For sales/use tax purposes, some jurisdictions in the U.S. exempt sales on second hand personal items like in a garage sale.
it does not make sense to tax a second hand stuff, otherwise if i continued on selling second hand stuff at the end of the day i would be in negative on that item/items...
Here is the best way to think about it (apart from reading the code), if today you are worth $5000 and tomorrow you are worth $5001, 99.9% of the time, whatever you did is a taxable event.
For anyone wondering, whether you mine, buy/sell bitcoin, buy/sell bitcoin equipment, really anything you do crypto related, is taxable in one way or another in the United States.
