[voxic11]

Well yeah, but that just means you also have to record both the GP you spend and the GP you receive and the fair market value at the time of spending or receiving it.

Unless you are thinking that you only would need to file taxes if you were to sell the GP for some kind of normal currency. That isn't how income tax works, you can't avoid or delay being taxed by receiving your salary as gold or bitcoin or some non-currency asset, all "clearly realized accessions to wealth" count as taxable income. And so just as you have to pay income tax on the fair market value of bitcoin or gold whenever you mine or otherwise earn it, you would also have to do that with GP whenever it was earned.

[gopher_space]

My employer isn't paying me in MMO-Bux, I am converting MMO-Bux into govt. backed currency at a date and time of my own choosing. There's no need to record anything other than the financial transaction.

[dpc050505]

I sold a few billions of runescape gold I acquired through staking during the pandemic. It was worth several thousands of dollars at the time. I declared the income when I filed taxes in Canada, as one would if they're a law abiding citizen.

If I hadn't sold it I wouldn't have made any income and it would make no sense to disclose anything about what's happening in a video game.