Amortization Calculator: Installment Schedule & Debt Repayment

View your loan payment breakdown table month by month. Understand how much of your installment goes toward the principal vs. interest payments.

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Fill in the required parameters on the left and click calculate to see the detailed results and analysis.

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Understanding Debt Payment Structure with an Amortization Schedule

When you take out a bank loan, you are not only paying back the money you borrowed but also the cost for using that money (interest). Amortization is an accounting process used to gradually pay off a debt balance through fixed payments over time. Our Amortization Calculator helps you transparently see how every dollar you pay is allocated.

Why Should You Look at an Amortization Table?

Many people are surprised to see that at the beginning of the loan term, most of their installments are spent just on paying interest, while the principal debt barely decreases. With an amortization table, you can:

  • •Know the Remaining Debt: Track exactly what your remaining principal balance is in any given month.
  • •Effect of Early Repayment: Understand why paying more at the start of the term can save a significant amount on total interest costs.
  • •Tax Planning: For business owners, the interest portion of a loan can often be a tax-deductible expense.
  • Components in an Amortization Table

    The generated table usually consists of several important columns:

  • 1Installment Number: The sequence of payment months (e.g., 1 to 180 for a 15-year mortgage).
  • 2Principal Payment: The part of the installment that actually reduces your debt balance.
  • 3Interest Payment: The part of the installment that serves as income for the bank/financial institution.
  • 4Total Installment: The sum of principal and interest (usually fixed in an annuity system).
  • 5Ending Balance: Your remaining debt after that month's payment is made.
  • Interest Systems: Annuity vs. Effective

    Most long-term loans use an Annuity Interest system.

  • •In this system, the total monthly installment is made equal for the customer's convenience.
  • •However, the composition changes every month: interest is very high at the beginning and principal is very small. At the end of the term, this condition is reversed.
  • Strategies to Save on Loan Interest

    If your bank allows voluntary additional payments, you can perform "Self-Amortization." By setting aside more money to pay down the principal, your debt balance will drop faster. Since interest is calculated based on the remaining principal balance, the total future interest burden will also drop significantly.

    How to Use This Calculator

    Enter the loan principal amount, the interest rate given by the bank, and the loan duration. You will get a complete breakdown table from the first month until it's paid off. Use this data to ensure you have a sufficient budget and there are no calculation errors from the creditor.

    ? Frequently Asked Questions

    Q Why is my principal payment so small in the early years?

    This is a characteristic of the annuity interest system commonly used by banks. Since interest is calculated as a percentage of the total remaining debt, and the debt is largest at the start, the interest portion dominates your installment.

    Q What is the difference between amortization and depreciation?

    Amortization is used for the repayment of intangible assets or debt (like loans), while depreciation is used to allocate the cost of tangible fixed assets (like vehicles or machinery) over their useful life.

    Q Does the amortization schedule change if floating interest rates rise?

    Yes. If your mortgage interest rate rises during a floating period, the interest proportion will increase. Banks usually increase the monthly installment value or extend the term so the debt can be paid according to the new schedule.

    Q Can I request an amortization table from the bank?

    Certainly. Every customer has the right to get an official schedule when the loan agreement is signed or can request it through the bank's customer service.

    Q Are provision fees included in the amortization table?

    Usually not. Provision fees, administration fees, and insurance are generally paid once upfront and are not part of the monthly installment structure.