Large national banks issue more than 90 percent of consumer credit cards in the United States. Federal law now requires large banks -- those with 10,000 credit card accounts or more -- to post their credit card agreements in a database now maintained by the Federal Reserve.
CreditCards.com analyzed the more than 1,200 card agreements in the database for readability, using software that ranks documents in terms of the grade level required to understand them. The higher the grade, the fewer people can understand it. The average American reads at a ninth-grade level.
Here's a look at how the credit card agreements of the 20 largest issuers (based on oustanding balances) fared in the readability analysis.