Bitcoin ban expands across credit cards

Agrowing number of big US credit-card issuers are deciding they don’t want to finance a falling knife.

JPMorgan Chase & Co., Bank of America Corp. and Citigroup Inc. said they’re halting purchases of Bitcoin and other cryptocurrencies on their credit cards. JPMorgan, enacting the ban yesterday, doesn’t want the credit risk associated with the transactions, company spokeswoman Mary Jane Rogers said.

Bank of America started declining credit card transactions with known crypto exchanges on Friday. The policy applies to all personal and business credit cards, according to a memo. It doesn’t affect debit cards, said company spokeswoman Betty Riess.

And late Friday, Citigroup said it too will halt purchases of cryptocurrencies on its credit cards. “We will continue to review our policy as this market evolves,” company spokeswoman Jennifer Bombardier said.

Allowing purchases of cryptocurrencies can create big headaches for lenders, which can be left on the hook if a borrower bets wrong and can’t repay.

There’s also the risk that thieves will abuse cards that were purloined or based on stolen identities, turning them into crypto hoards.

Banks also are required by regulators to monitor customer transactions for signs of money laundering — which isn’t as easy once dollars are converted into digital coins.