Why is my mortgage payment mostly interest at the start?

The question everyone asks at year one

People see a monthly mortgage payment around $2,000, work out the loan over 30 years, and do the mental math: that is $720,000 in payments on a $320,000 loan. Then they open the statement and see that $2,000 is mostly interest, and something clicks. Wait, this is a lot of interest.

That is not a trick. It is how amortization works. You owe the most money at the start, so the start is when the interest share is largest. The balance shrinks slowly at first, which is why early payments go mostly to interest. Somewhere around year 18 the split flips and more of each payment starts hitting principal.

The numbers, plain

On $320,000 at 6.5% for 30 years, the payment is about $2,021. Year one, roughly $1,733 of that is interest and $288 buys down principal. By year 15, the split is close to even. By year 25, most of the payment goes to principal. The total interest over the life? About $408,000. Yes, more than the loan itself. That is normal, not a hidden fee.

Why the total looks bigger than the house

Because 30 years is a long time to carry a 6.5% rate on a balance that large. The same loan at 5% cuts years of payments and about six figures of interest. The rate is the giant lever here, more than price, more than down payment. Drop it a point and it is like handing you back a significant chunk of the monthly budget.

What actually shortens the ride

Two things move the finish line: a lower rate and extra principal payments, especially early. An extra $100 a month on that loan does not feel heroic, but it clips years of payments and tens of thousands in interest, because early extra dollars skip the highest-interest years. The mortgage calculator shows the year-by-year schedule, so you can watch the flips and decide if the early payoff is worth the budget pain.

Bottom line

The big interest number is not a scam and not a mistake. It is the cost of borrowing a lot at a normal rate for three decades. Now you can see where your money goes and how to change the picture.