According to the United States Department of Treasury, an estimated $70 million in USD Counterfeit Banknotes are in circulation, or approximately 1 note in counterfeits for every 10,000 in genuine currency, with an upper bound of $200 million counterfeit, or 1 counterfeit per 4,000 genuine notes. American paper currency come in seven denominations: $1, $2, $5, $10, $20, $50, and $100. The United States no longer issues bills in larger denominations, such as $500, $1,000, $5,000, and $10,000 bills.