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Sinking Fund Calculator

Find the level annual deposit that grows to a target future value at a constant rate.

 

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Annual deposit

About this calculator

Use this sinking-fund calculator when you need a known lump sum on a future date (a balloon, a replacement, a debt) and will save the same amount at the end of each year. Monthly deposits are not modelled here.

Annual deposit = target × r / ((1 + r)^n − 1). If the rate is essentially zero, the deposit is target ÷ years. Type 4 for 4%. Target and deposit share one currency.

Target: The future amount you want to have, in your currency.

Rate (%): Annual compound rate earned on the deposits, as a percent.

Years: How many end-of-year deposits.

Annual deposit: The level payment that reaches the target.