Is Monopoly money illegal?

Is Monopoly money illegal? It is different from most currencies, including the American currency or British currency upon which it is based, in that it is smaller, one-sided, and does not have different imagery for each denomination. It is not legal tender and has no monetary value in any jurisdictions.

It is different from most currencies, including the American currency or British currency upon which it is based, in that it is smaller, one-sided, and does not have different imagery for each denomination. It is not legal tender and has no monetary value in any jurisdictions.