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Flat vs Reducing Interest Calculator

Flat vs Reducing Interest Calculator

Loan Calculator with Amortization Schedule

Results

Flat Rate

Total Interest:

Total Payment:

Monthly Payment:

Reducing Balance Rate

Total Interest:

Total Payment:

Monthly Payment:

Total Savings on Interest

You save: by choosing the Reducing Balance method

Amortization Schedules

Year

Month Payment Principal Interest Balance

Year

Month Payment Principal Interest Balance

FAQs - Frequently Asked Questions

A flat interest rate is a fixed percentage that is applied to the initial loan amount throughout the entire loan tenure. The interest is calculated on the total principal amount for the entire duration of the loan.
A reducing interest rate, also known as a diminishing or declining balance rate, is calculated on the outstanding principal amount after each repayment. The interest amount decreases as the principal amount reduces over time.
In a flat interest rate calculation, the interest is computed on the original loan amount for the entire loan period, and this amount is added to the principal, resulting in equal installment payments throughout the loan term.
In a reducing interest rate calculation, the interest is calculated on the remaining loan balance after each repayment. As you pay off the principal, the interest portion of your installments decreases, leading to potentially lower overall interest payments.
Generally, the reducing interest rate results in lower total interest payments compared to the flat interest rate because the interest is calculated on the declining balance of the loan.
Lenders offer both options to cater to different borrower preferences and financial situations. Some borrowers may prefer the predictability of fixed monthly payments with a flat rate, while others may opt for the potential savings with a reducing rate.
Enter the principal loan amount, interest rate, loan tenure, and select the interest rate type (flat or reducing). The calculator will then compute and display the monthly installments and total interest payable for both types.
Switching interest rate types during the loan tenure depends on the lender's policies. Some lenders may allow it, usually involving refinancing or restructuring the loan, while others may not.
The nominal flat interest rate is typically lower than the reducing interest rate, but the actual interest cost over the loan tenure is usually higher with a flat rate due to the constant application of interest on the original principal amount.
Consider factors such as the total interest payable, monthly installment amounts, your financial stability, loan tenure, and your preference for predictability in payments versus potential savings. Use the calculator to compare both options and choose the one that best fits your financial situation.

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