By ToolzHive
About this tool
A Special Term Deposit Receipt (STDR), also called a cumulative fixed deposit, reinvests your interest so it compounds until maturity. This calculator shows the final maturity amount, total interest, the effective annual yield and a growth schedule for any deposit, rate, term and compounding frequency, with an optional tax deduction.
How to use Fixed Deposit (STDR) Calculator
- Enter the deposit amount, annual interest rate and term.
- Choose how often interest compounds and, optionally, the tax rate on profit.
- Pick the start date to see the maturity date and how your balance grows.
Worked example
500,000 at 10% for 3 years with quarterly compounding grows to about 672,444, earning 172,444 in interest. That is an effective yield of about 10.38% a year.
Why does an STDR earn more than a TDR?
Because interest is added to the deposit, it earns interest itself in later periods. Over longer terms this compounding makes a noticeable difference.
Does compounding frequency matter?
More frequent compounding gives slightly more. At 10%, quarterly compounding yields about 10.38% a year and monthly about 10.47%.
Can I withdraw an STDR early?
Most banks allow early withdrawal but pay a lower rate or charge a penalty. Check your bank's terms.
Put this guide into practice
- Fixed Deposit (STDR) Calculator — Calculate the maturity value of a compounding STDR fixed deposit.