5% and a regard to 30 years. You're not in fact paying simply 4. 5% of $200,000 as interest; you're paying interest on what stays of the balance after each payment every month. Because your monthly payment is just a little portion of the overall amount you owe, just a small part of the loan balance gets paid off, and interest gets charged once again on that balance the next month.Your home mortgage payment is the very same monthly unless your rates of interest modifications, however the parts of your home mortgage payment that goes towards your principal and interest charges alters the longer you have the home mortgage. Interest payments are front-loaded early on and are slowly decreased up until principal payments begin to exceed them.