5% and a regard to thirty years. You're not actually paying simply 4. 5% of $200,000 as interest; you're paying interest on what stays of the balance after each payment monthly. Due to the fact that your monthly payment is only a small portion of the overall amount you owe, just a small part of the loan balance makes money off, and interest gets charged again on that balance the next month.Your home mortgage payment is the very same every month unless your interest rate changes, but the parts of your home loan payment that goes towards your principal and interest charges alters the longer you have the home loan. Interest payments are front-loaded early on and are gradually decreased till primary payments begin to exceed them.