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  1. The daily balance method; and
  2. The average daily balance method.

 

The examples below use end-of-day-balances and refer to the interest posting & compounding periodperiods used.The interest compounding period

Terms

Compounding Period: is the span of time which at the end of which savings in a client’s account earn interest. Interest periods may vary; they may be daily, weekly, bi-weekly, monthly, quarterly, semi-annual or annual.Examples of each method are provided using account activity for one month and the interest is calculated at the end of the day, end of the month - 31st Mar 2013the interest earned over this period on the savings account balance in accumulated with the balance of the account is applicable for interest calculations in future periods. As a result the interest is compounded. The following compounding period frequencies are supported:

  • Daily: compounding occurs on the balance each day and is accumulated with the balance so that the next days interest calculation takes it into account.
  • Monthly: compounding occurs on the interest earned over the entire month. Next months interest calculation is on the savings account blance + any interest earned in previous compounding period.


Posting Period: is the span of time which at the end of the interest earned over this period on savings account is credited or posted to the clients account. A posting period may include many compounding periods. The following posting period frequencies are supported:

  • Monthly: The period mirrors the calendar month so periods are 01 Jan - 31 Jan, 01 Feb - 28 Feb, 01 Mar - 31 Mar etc
  • Quarterly: The period mirrors the calendar quarter so periods are 01 Jan - 31 Mar, 01 Apr - 30 Jun etc
  • Annually: Ther period mirrors the calendar year so perdios are 01 Jan - 31 Dec for each year.

 

Nominal annual interest rate %: Also known as nominal APR, its nominal as this rate doesnt reflect influences such as inflation or compounding. The percentage is represented as a number e.g. 20 for 20% NOT as a fraction 0.2 = 20%

Interest Calculation Method: We support Daily Balance and Average Daily Balance

Days in Year: Some people want their interest calculations to be done over a 360 day year instead of 365/366 day year.

Account Activity

The client makes the following transactions throughout the month on an account opened on 01 March 2013:

DateTransactionAmount
01 Mar 2013Deposit1200
02 Mar 2013Withdrawal100
10 Mar 2013Withdrawal400
15 Mar 2013Deposit200
16 Mar 2013Withdrawal900
18 Mar 2012Deposit200
21 Mar 2012Deposit700
31st Mar 2013Withdrawal100

 

 

TransactionDateAmountBalance(EOD)Number of DaysCumulative Balance
Balance28th Feb 201300-0
Deposit1st Mar 20131200120011200
Withdrawal2nd Mar 2013100110088800
Withdrawal10th Mar 201340070053500
Deposit15th Mar 20132009001900
Withdrawal16th Mar 2013900020
Deposit18th Mar 20132002003600
Deposit21st Mar 2013700900107000
Withdrawal31st Mar 20131008001800
    31 Days

22800

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