Amortization Schedule Calculator

Year-by-Year Mortgage Amortization

Enter your loan amount, rate, and term. We'll show monthly principal and interest, plus a full year-by-year breakdown of how your balance pays down over the life of the loan.

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All numbers are estimates. Your real loan depends on credit, equity, property type, and current rates. Run the math, then request a free quote.

Results

Monthly P&I $0
Total Interest$0
Total Paid$0
Payoff
Year Principal Interest Balance
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How to Use It

Why Early Years Look Lopsided

Mortgage amortization is heavily weighted toward interest in the early years and shifts toward principal as the balance shrinks. On a fresh 30-year loan, your first year is roughly 80%+ interest. By the final years, it flips: most of the payment goes to principal.

This matters for refinances, prepayments, and selling decisions. Refinancing late in a loan resets the heavy-interest years; making one extra payment early in the loan saves disproportionately more interest than one made late.

Things This Schedule Helps You Plan

  • When to refinance: calculate equity for PMI removal at 78–80% LTV.
  • Tax planning: interest deductible on a primary residence (subject to caps).
  • Selling strategy: see your loan balance at a likely sale date.
  • Prepayment impact: extra principal payments shorten the schedule.
  • Comparing loan terms: same balance, 30-yr vs 15-yr looks dramatically different.
Common Questions

Calculator FAQ

What is amortization?

Amortization is the process of paying off a loan in regular installments where each payment splits between principal and interest. As the balance shrinks, the interest portion shrinks too.

Why is so much of my early payment interest?

Interest is charged on the outstanding balance, which is highest at the start of the loan. As you pay down principal, the interest portion shrinks and the principal portion grows, even though the total payment stays the same.

Do extra payments change the schedule?

Yes. Every extra dollar of principal reduces the balance, which means less interest charged in every subsequent month. Use our Early Payoff Calculator to model extra payments.

Is the schedule the same on every mortgage?

The math is identical for any standard fixed-rate amortizing loan. ARMs, interest-only loans, and balloon mortgages have different schedules.

Does the schedule include taxes and insurance?

No, this calculator shows principal and interest only. Taxes and insurance escrow are added on top of the P&I payment by your servicer.

How can I save interest with this info?

Two main ways: pay extra principal (especially early), or refinance to a lower rate or shorter term. Both shift the balance closer to payoff faster.

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