Financial math: future balance: regular deposits made at beginning of month vs end of month
The tutor tells the quick way to convert the accumulated balance after regular deposits between “beginning” vs “end of month” payments.
In a previous post I tell how to find the end balance of an account after five years of monthly deposits of $100 at the end of each month. What if the deposits are made at the beginning of each month? Assuming monthly compounding, here’s how to convert: multiply the end balance by (1+i/12), where i is the nominal annual rate.
In the case of the previous post, the end balance is 6505.475 after end-of-month deposits. The nominal interest is 3.25%, compounded monthly. With beginning-of-month deposits, the final balance will instead be 6505.475(1+0.0325/12) = 6523.094.
HTH:)
Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.