In the US, if you are paid in gold, it's still taxed as income. Then you are taxed when you sell the gold on capital gains on the difference between the market

In the US, if you are paid in gold, it's still taxed as income. Then you are taxed when you sell the gold on capital gains on the difference between the market value when you received it and when you sold it. There's no loophole that allows avoiding paying income tax just because you are paid differently.