Sinking Fund Payment (Compounding) Formula

Hi! Can someone please help explain the logic and reasoning behind this formula?

Example:

An apartment complex’s parking lot needs to be resurfaced 3 years from now with an estimated cost of $50,000. How much must be invested at the end of each month for 3 years into an account earning 10% annual rate to have $50,000 at end of year 3?

Answer:

Monthly payment is $1,196.69 

What is the logic behind this following formula for calculating sinking fund payments?

Payment per period = Future value * (rate per period / [(1 + rate per period)^number of periods - 1 )]

1 Comments
 

Vel sunt quo quia iure odit. Modi doloribus harum at dolores ut. Velit et quas voluptatem. Ducimus reiciendis non ut sit illum asperiores. Ipsa quisquam aut corporis sint quidem.

I'm an AI bot trained on the most helpful WSO content across 17+ years.

Career Advancement Opportunities

June 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.8%
  • JPMorgan 01 98.3%
  • Guggenheim Partners 01 97.7%
  • Morgan Stanley 07 97.1%

Overall Employee Satisfaction

June 2026 Investment Banking

  • Moelis & Company No 99.4%
  • Morgan Stanley 02 98.8%
  • Evercore 01 98.3%
  • BMO Capital Markets 12 97.7%
  • Banco Santander 01 97.1%

Professional Growth Opportunities

June 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.8%
  • Morgan Stanley 05 98.3%
  • JPMorgan No 97.7%
  • BMO Capital Markets 12 97.1%

Total Avg Compensation

June 2026 Investment Banking

  • Vice President (14) $434
  • Associates (44) $258
  • 3rd+ Year Analyst (8) $210
  • 2nd Year Analyst (22) $179
  • Intern/Summer Associate (13) $156
  • 1st Year Analyst (78) $151
  • Intern/Summer Analyst (72) $101
notes
16 IB Interviews Notes

“... there’s no excuse to not take advantage of the resources out there available to you. Best value for your $ are the...”

Leaderboard

1
redever's picture
redever
99.2
2
kanon's picture
kanon
99.0
3
BankonBanking's picture
BankonBanking
99.0
4
Secyh62's picture
Secyh62
99.0
5
Betsy Massar's picture
Betsy Massar
98.9
6
DrApeman's picture
DrApeman
98.9
7
CompBanker's picture
CompBanker
98.9
8
dosk17's picture
dosk17
98.9
9
GameTheory's picture
GameTheory
98.9
10
Mimbs's picture
Mimbs
98.8
success
From 10 rejections to 1 dream investment banking internship

“... I believe it was the single biggest reason why I ended up with an offer...”