Outstanding Principal Balance



The outstanding principal balance of a mortgage is simply the total amount of money it would take to pay off the loan in full. How much this amount is depends on how much was originally borrowed, how much has been paid down, and what the annual interest rate is.

Loan Balance Calculator
Description Values
Loan amount
The interest rate
Date of transfer
Number of annuities (months)
Normal annuity
Monthly payment amount
Number of months gone by



How would the outstanding loan balance be calculated?

If you wanted to pay off your mortgage balance in full today, how would the outstanding loan balance be calculated? Your monthly mortgage statement will usually show the principal balance outstanding, but this is not the amount due to pay the balance in full. In fact, the statement probably even says that. If you want to pay off the loan in full, you have to call your lender and request an actual payoff amount.

Your monthly payment includes both principal and interest.

The reason for this is because the principal balance on your mortgage statement doesn’t account for any interest that’s accrued on the loan since you made your last payment. Remember, your monthly payment includes both principal and interest. The principal balance on the statement accounts for the former, but not the latter.



How this works?

To see how this works, let’s assume you have a principal balance of exactly $100,000 as of this month’s mortgage statement and your interest rate is 4.50%. The approximate interest due on your next payment would simply be the interest rate multiplied by the loan balance, which is then divided by 12:

$100,000 * 4.50% = $4,500 total annual interest
$4,500/12 months = $375 total monthly interest

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Months have different numbers of days.

The interest part of your mortgage payment for this month would be about $375. However, lenders actually get more exact than that. Because months have different numbers of days, lenders will usually calculate the interest accrual on the payoff as a daily amount: $4,500/365 days in the year = $12.33 interest per day Now, if you wanted to pay off your loan in full on the 15th of the month, the lender would likely calculate your payoff as follows: $100,000 principal + ($12.33 * 15) = $100,184.95 The outstanding balance of the loan to pay it in full would thus be the principal balance plus any interest that’s accrued up to the day you pay off the loan. In this example, it’s $100,184.95.