One reason for the reformation was the wealth of the Catholic Church; the Catholic Church owned and controlled vast amounts of land and wealth. Henry saw a break from Rome as an opportunity to pay for his expensive wars. During the mid 16th century, Henry destroyed and confiscated the monasteries and other lands of the church. The lands that he confiscated were sold to the nobility and middle classes. The money from these land sales went to pay for the war effort.
Religious groups, such as the Lollards, had been pushing for reform in the church for several centuries prior to the English reformation. Other than this, the English Catholic Church was strong and healthy. The English clergy were very well educated and had a lot of authority and respect from the people of England. Therefore, the English reformation was mainly caused by the king's emotional life.
In 1527, King Henry requested an annulment from Pope Clement, claiming that his marriage with Catherine of Aragon would cause a civil war because a woman would inherit the throne. When the pope refused to grant Henry an annulment, Henry issued the Act in Restraint of Appeals which said that the king was the supreme judicial authority in England. This established the crown as the head legal authority in England. The Supremacy Act came a year later and caused a direct split