You have to understand the historical context and Jeff's dislike of banking institutions seem to have little to do with the merits/demerits of banks in of themselves. Jefferson had a hatred of banks because they were creditors, and he was a debtor from a very early age. Most of his asset was in land which he inherited from his father and father-in-law. Historians will tell you he ran up considerable debts while serving as the US minister to France mostly because of his own extravagence for French wines, entertaining guests, and a large household of staff (ie slaves). Secondly, Jefferson disliked the British because British banks lent credit to the colonies and then the fledgling United States. Jefferson's dislike of banking institutions had deep personal and political motives. He hated big government just as much - again, ramifications of his Whig political roots against English tyranny which was thought to originate from the King.