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Handling future expenses becomes easier when you prepare in advance. A sinking fund helps by setting aside small amounts regularly for a specific goal. Instead of facing financial pressure later, you build the amount gradually over time.
This helps both individuals and businesses stay ready for planned expenses like loan payments, asset purchases, or major costs without affecting their regular budget.
Key Takeaways
● A sinking fund helps you set aside money little by little for a future expense or need.
● It reduces the need to arrange a large lump sum at once and reduces borrowing needs.
● Regular contributions support structured financial planning.
● It is not the same as an emergency fund, which is meant for unexpected situations.
What Is A Sinking Fund?
A sinking fund is a planned way of saving money over time for a specific future expense. In simple terms, it involves setting aside a fixed amount regularly—monthly, quarterly, or yearly—so that you can meet a known financial obligation without stress. For sinking funds for beginners, this method helps break down large expenses into smaller, manageable contributions.
Companies commonly use sinking funds to repay bonds or long-term debt by gradually building the required amount before maturity. Instead of arranging a large lump sum at the end, they spread the burden over several years. Similarly, sinking funds can also be used for planned expenses like purchasing machinery, upgrading assets, or handling any major cost expected in the future.
Example Of A Sinking Fund
The following example explains this concept: Say, XYZ Co. issued bonds worth ₹150 crores for a period of 5 years. The company decided to set up a sinking fund wherein they contribute ₹30 crores annually. Over 5 years (without interest), this accumulates to ₹150 crores, which they can use to repay their debt.
What if ABC Co. had not set up a sinking fund? Then they would have to pay out ₹150 crores at the end of 5 years to all the bondholders from their profits, cash, or any other mode as they deem fit. This illustrates how sinking funds help companies manage repayment obligations over time.
How To Calculate the Amount to Be Contributed To A Sinking Fund?
Below is the sinking fund formula used to calculate the amount of contribution.
Contribution = Money to Accumulate × [Interest / {(1 + Interest)^(Compound Frequency × Period) − 1}]
In the above sinking fund formula,
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The ‘Money to Accumulate’ refers to the lump sum amount you need on maturity
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The interest here is the annual compound interest rate that the company receives
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Compound Frequency is the number of times interest is paid in a specific period
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Period here is the number of years for which the contribution needs to be made
You can also use the sinking funds calculator to know the amount of contribution you need to make to receive a lump sum amount on maturity.
Check Out: Calculate Returns on Lumpsum Investment Online
Note: The above formula assumes contributions are made at the end of each compounding period (ordinary annuity). If contributions are made at the beginning of each period, the formula must be adjusted accordingly. Use a financial calculator for precision, assuming compounding matches contribution frequency.
Types of Sinking Funds
The following are the types of sinking funds:
1. Callable Bond Sinking Fund
A fund maintained for redeeming callable bonds issued by the company at a fixed call price is called a Callable Bond Sinking Fund.
2. Specific-Purpose Sinking Fund
When a company creates a fund for a specific purpose, say, to buy particular machinery, it is called a Specific Purpose Sinking Fund.
3. Regular Payment Sinking Fund
This fund is created to make recurring payments, such as interest payments to bondholders or other periodic obligations.
4. Purchase Back Sinking Fund
When a company wants to repurchase its bonds from the market, it can create a Purchase Back Sinking Fund. A bond can be repurchased at either the market price or a sinking fund price.
Advantages of Creating a Sinking Fund
Below are a few ways in which a sinking fund helps a company:
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To pay its liability in advance by contributing regularly to the fund.
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To clear its debt on time, as the money has already been kept aside.
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To redeem the bond/liability before maturity, if required.
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To increase investor confidence, as all debts are paid on time.
Sinking Fund vs Emergency Fund
A sinking fund vs emergency fund comparison helps clarify their purpose. A sinking fund is created for planned and predictable expenses, such as buying an asset, paying insurance premiums, or repaying a loan. You contribute regularly with a clear goal and timeline in mind.
An emergency fund, on the other hand, is meant for unexpected situations like medical emergencies, sudden repairs, or loss of income. It focuses on immediate access and liquidity rather than a fixed target.
In short, a sinking fund prepares you for known future costs, while an emergency fund acts as a safety net for uncertainties. Both are important, but they serve different roles in financial planning.
Also Read More About: Importance of Fixed Deposits as Emergency Funds
Conclusion
Sinking funds are a practical way to plan for future expenses without straining your finances. By putting aside small amounts regularly, you can handle costs like loan repayments or major purchases more comfortably.
This method helps reduce the need to borrow and supports better money management over time. Whether for personal use or business needs, it encourages consistent saving and makes it easier to deal with planned expenses when they arise.
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