The IRS doesn't have much leeway here, I suspect. IANAL, but it's my understanding that U.S. laws specify dollars as the only currency of the U.S. If people c

The IRS doesn't have much leeway here, I suspect. IANAL, but it's my understanding that U.S. laws specify dollars as the only currency of the U.S. If people can invent other currencies that the government is then required to accept as currency, I suspect it would take an overhaul of our laws. (And isn't there something in the constitution about the federal government having sole minting power?)