Principal Payment

What is the Principal Payment?

The principal payment is that component of repayment that reduces the amount due to debt outstanding. In finance, a loan, when owed, requires payments to be made via equated installments, which has two components- interest payment (reducing the interest portion due on loan) and principal payment (directly reducing the loan amount due). When a loan is taken, the lender and the borrower mutually decide on the installments that would be made by the borrower at decided intervals. These installments also account for interest or the opportunity costOpportunity CostThe difference between the chosen plan of action and the next best plan is known as the opportunity cost. It's essentially the cost of the next best alternative that has been forgiven.read more that the lender forgoes when making the loan.

Types of Principal Payment

There are generally two types of repayment schedules – even principal payments and even total payments.

Types-of-principal-Payment

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For eg:
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#1 – Even Principal Payments

In even principal payments, the amount of principal payment is the same for each payment. It is simply computed using the amount of loan originally taken divided by the number of installments. The interest component on such type is the interest charged for the period on the amount outstanding.

#2 – Even Total Payments

In even total payments, the amount of repayment stays the same during the period; however, the interest component decrease while the principal payment size increases. It is important to note that the installment stays the same.

The annual equated repayments, the following formula shall be used:

Equated Installments = P * r *(1+r)n / [(1+r)n – 1]

Where,

  • P =Principal Amount Due
  • r = Rate of Interest for Period
  • n = Number of Installments

Principal Payment Examples & Calculation

Let’s take an example and understand. Mr. John wants a loan of $100,000 to expand his business and goes to Bank ABC LLC. The Bank decides to lend him the money @2.0% per annum with a tenure of 5 years over which he will repay the loan in 5 installments. Mr. John, depending on the terms of the loan, could make repayments wither by even principal payments or even total payments.

You can download this Principal Payment Excel Template here – Principal Payment Excel Template

The amortization table in each such case is given below.

Loan Amortization- Even Principal Payments

Year EndStarting AmountRepaymentInterest ComponentPrincipal ComponentAmount Outstanding
1$100,000.0$22,000.0$2,000.0$20,000.0$80,000.0
2$80,000.0$21,600.0$1,600.0$20,000.0$60,000.0
3$60,000.0$21,200.0$1,200.0$20,000.0$40,000.0
4$40,000.0$20,800.0$800.0$20,000.0$20,000.0
5$20,000.0$20,400.0$400.0$20,000.0$0.0

The principal payments calculation stays the same, while the interest component changes are based on the amount outstanding.

  • Where the payments are based on ‘Even Total Payments,’ we would first need to find equated installments for which we would plug in necessary inputs in the formula above. In the given case P=$100,000 with r =2.0% and n=5.
  • When we plug in the inputs in the equation, we get $21,215.8, which is the payment to be made at the end of each year for 5 years. It is important to note here that this payment also includes the interest component, and eventually, what you repay over 5 years would be more than the principal was originally has taken, which is $100,000.
  • The table below shows how the amount of outstanding amortizes during the life of the loan. The repayment stays the same during the period with the interest component, reducing with repayment of the principal as per the schedule.

Loan Amortization – Even Total Payments

Year-EndStarting AmountRepayment
(Equated)
Interest ComponentPrincipal ComponentAmount Outstanding
1$100,000.0$21,215.8$2,000.0$19,215.8$80,784.2
2$80,784.2$21,215.8$1,615.7$19,600.2$61,184.0
3$61,184.0$21,215.8$1,223.7$19,992.2$41,191.8
4$41,191.8$21,215.8$823.8$20,392.0$20,799.8
5$20,799.8$21,215.8$416.0$20,799.8$0.0

Principal Component = Repayment – (Starting Amount * r)

If, at the end of year 2, John decides to repay an extra $20,000 along with the equated payment of $21,215.8, this extra payment will directly reduce the amount outstanding to $41,184.0, and the loan amortization scheduleLoan Amortization ScheduleLoan amortization schedule refers to the schedule of repayment of the loan. Every installment comprises of principal amount and interest component till the end of the loan term or up to which full amount of loan is paid off.read more will change.

Loan Amortization – Even Total Payments

Year-EndStarting AmountRepayment
(Equated)
Interest ComponentPrincipal ComponentAmount Outstanding
3$41,184.0$21,215.8$823.7$20,392.2$20,791.8
4$20,791.8$21,215.8$415.8$20,800.0($8.2)

Loan Amortization – Even Total Payments

Year-EndStarting AmountRepayment
(Equated)
Interest ComponentPrincipal ComponentAmount Outstanding
1$100,000.0$21,215.8$2,000.0$19,215.8$80,784.2
2$80,784.2$41,215.8$1,615.7$39,600.2$41,184.0
3$41,184.0$14,280.7$823.7$13,457.1$27,726.9
4$27,726.9$14,280.7$554.5$13,726.2$14,000.7
5$14,000.7$14,280.7$280.0$14,000.7($0.0)

Advantages of Principal Payment

Disadvantages of Principal Payment

  • In cases, the cash used to pay the principal portion can sometimes be used for better alternatives.
  • It is important to consider different projects and their NPV before taking a decision on principal repayment, which sometimes could go wrong.
  • Sometimes the bank charges a notional fee when the borrower makes a principal repayment.

Conclusion

This has a guide to What is Principal Payment & its Definition. Here we discuss the principal payment types and formula along with calculation examples, advantages, and disadvantages. You can learn more about from the following articles –

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