Moody’s decision to join other major ratings agencies in downgrading the U.S.’s once-pristine credit rating could have a tangible impact on Americans’ wallets. The agency has dropped the U.S. sovereign credit rating—an assessment of the country’s ability to pay its debts—down one level from the highest possible Aaa to Aa1.

Moody's on Monday downgraded the long-term ratings of top American lenders such as JPMorgan Chase , Bank of America and Wells Fargo , after pushing the U.S. out of top triple-A rating club over its burgeoning $36 trillion debt.