In a thirty years fixed mortgage, each payment includes a portion to paying down the principal and paying interest on the remaining principal.
In the beginning of the mortgage, the principal is higher, thus the interest portion is higher. In the first five years of a thirty year mortgage, a very small percentage goes towards the principal.
Assuming a thirty year fixed rate mortgage and a 7.5% interest rate, less than 15% of the mortgage payments in the first five years go to paying down the principal [1].
In the beginning of the mortgage, the principal is higher, thus the interest portion is higher. In the first five years of a thirty year mortgage, a very small percentage goes towards the principal.
Assuming a thirty year fixed rate mortgage and a 7.5% interest rate, less than 15% of the mortgage payments in the first five years go to paying down the principal [1].
[1] https://www.bankrate.com/mortgages/amortization-calculator/