Securitizable

 

Online calculator — enter the values and get the result instantly, with the formula and a worked example.

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Securitizable
Formula & notes

annuity = fixed regular amount of money

FV = future value

i = interest rate

n = number of periods

What is it?

The sinking fund factor is a finance multiplier that tells you what fixed amount you must set aside each period to accumulate a specific target sum by a future date. In plain words, it answers the reverse of ordinary saving: instead of asking how much you will have, it asks how much you must regularly deposit to reach a goal you already know. Its value shrinks as the interest rate rises or the number of periods grows, because compounding does part of the work for you and each contribution can be smaller. That is its defining property: the longer your horizon and the higher the return, the lighter each individual payment needs to be. In everyday life it powers goal-based saving, such as building an emergency fund, saving for a car, a wedding, or a child's education. Businesses lean on it to set aside cash for replacing equipment or repaying a bond at maturity, which is exactly why it is called a sinking fund. Pension and insurance planning use the same logic to fund a promised future payout. Understanding it turns a vague intention to save into a concrete, disciplined monthly or yearly figure.

Calculator
%
r

Required annual deposit

Interactive graph

Hover the bars — height = the amount in that year.

Worked example
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