The main difference between the formal and informal qualifications for the House of Representatives is that the formal qualifications are set by the Constitution, while the informal qualifications are determined by the political parties and the voters. The formal qualifications are that a representative must be at least 25 years old, a U.S. citizen for at least seven years, and a resident of the state they are representing. The informal qualifications are typically determined by the political party, such as having a certain level of experience or expertise in a certain field, or having a certain amount of money to fund a campaign.
