Amortization calculator
See how your payments split over time.
Enter your loan details to see a year-by-year breakdown of principal and interest — and how extra monthly payments could shorten your loan and reduce total interest.
This is an estimate based on a fixed-rate loan. Actual schedules vary by loan terms.
Understand where your money goes.
This calculator shows how each payment is split between principal and interest over the life of the loan. Use the extra payment field to see the impact of paying a little more each month.
Principal and interest only, based on the numbers entered.
This schedule is an estimate based on the numbers you entered and assumes a fixed interest rate. It does not include taxes, insurance, PMI, or HOA fees. An Intra officer can provide a full payment breakdown for your actual loan.
Want a more exact estimate?
An Intra loan officer can review this scenario with your real numbers and help you understand what may change. No hard credit pull required.
Talk to an Intra loan officer →What this estimate includes
Included
- Year-by-year principal and interest breakdown
- Remaining loan balance over the life of the loan
- Impact of extra monthly payments on term and total interest
Not included
- Taxes, insurance, PMI, or escrow amounts
- Adjustable-rate changes or refinance events
- Prepayment penalties — most fixed-rate loans have none, but confirm with your servicer
How to use this calculator
- Enter your loan amount, rate, and term — or use price minus down payment.
- Review how early payments lean toward interest and later payments toward principal.
- Add an extra monthly payment to see how much time and interest you may save.
- Use the schedule to plan — your servicer’s statement is the official record.
Common questions, plain answers.
Amortization is the process of paying off a loan through regular payments over time. Each payment covers both interest and principal, but the split between the two changes over the life of the loan. Early payments are mostly interest. Later payments are mostly principal.
Interest is calculated on the remaining loan balance. Early in the loan, the balance is highest, so the interest portion of each payment is largest. As the balance decreases over time, more of each payment goes toward principal.
Extra monthly payments reduce the principal faster, which lowers the balance on which interest is calculated. This can shorten the loan term and reduce the total interest paid over the life of the loan.
A 15-year loan typically has a higher monthly payment but significantly less total interest paid. A 30-year loan spreads payments over more time, lowering the monthly payment but increasing the total interest over the life of the loan.
This schedule is an estimate based on the numbers you enter and assumes a fixed interest rate and consistent payments. Actual schedules vary based on your finalized loan terms, rounding, and payment timing.
This calculator shows principal and interest only. It does not include property taxes, homeowners insurance, PMI, HOA dues, or other monthly housing costs.
Use the extra payment field to see how even small additional payments each month can shorten your loan and reduce total interest. Compare the 15 and 30-year terms to understand the long-term cost difference.
Ready for the next step
Your numbers make more sense with a real conversation.
Estimates are a starting point. An Intra loan officer can show you your actual rate — based on your real situation, not a guess.
