As you can see the monthly amount for interest is being reduced, thus the rest is going towards Principal. Notice that the amount for interest in the second year is higher that the first. Eventually at the later end of the note the vast majority is for Principal and the interest is much less. Also, paying more than $200.00 a month would reduce the monthly Principal owed and thus reduce the amount of interest charged each month. This would pay the Principal down quicker and over all save you money. If you don’t have that much on a monthly basis, then you pay more interest. It is the loaning persons “interest” if giving you the money.