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A Sukanya Samriddhi calculator turns a long-term savings commitment into a clear, numeric picture. Instead of guessing what your daughter's account might grow into after two decades, you enter your annual contribution and the tool returns the estimated maturity value, total interest earned, and a year-by-year breakdown. The scheme itself has been running since 2015 and currently pays 8.2% per annum, compounded annually — a rate that remains among the highest available under any government-backed small savings instrument in India. With over 4.5 crore accounts opened and more than ₹3.33 lakh crore deposited since inception, the SSY has become the default long-term savings vehicle for families planning for a girl child's education and marriage.
At its core, an SSY maturity calculator projects the future value of a series of annual deposits that earn compound interest. The inputs are straightforward: the amount you plan to deposit each year, the assumed interest rate, and the holding period. The output is the maturity amount — the sum of all your contributions plus the interest that has accumulated on them.
What makes the calculation interesting is the scheme's unique timeline. You contribute for 15 years, but the account matures only after 21 years from the date of opening. That means your deposits stop after year 15, but the entire accumulated corpus continues to earn interest for another six years without any additional contribution from you. A well-built calculator accounts for this gap. It does not simply compound a 15-year annuity; it compounds for 21 years with deposits stopping at year 15.
The interest itself is calculated monthly on the lowest balance between the fifth day and the end of each month, and is credited at the end of every financial year. The calculator approximates this by applying the annual compounding formula to your year-end balance, which produces a figure that is very close to what the scheme will actually credit.
The standard compound interest formula used by SSY calculators is:
Here, A is the maturity amount, P is the annual contribution, r is the annual interest rate (8.2% or 0.082 in decimal form), n is the number of times interest compounds per year (1 for SSY, since it compounds annually), and t is the number of years.
For a single lump sum deposited at the start, the calculation is straightforward. But SSY involves a series of annual deposits, each of which earns interest for a different number of years. The first deposit earns interest for the full 21 years; the second earns for 20 years; the fifteenth deposit earns for only 7 years. The maturity value is the sum of all these individual future values.
Many online calculators simplify this by using an annuity formula that assumes deposits are made at the beginning of each year. A more precise approach treats each year's deposit as a separate lump sum and compounds it for the remaining years until maturity. The difference between the two methods is small but can matter when you are comparing two calculators side by side.
Suppose you open an SSY account for your daughter and decide to deposit ₹1,00,000 every year. You will make this deposit for 15 years, so your total out-of-pocket contribution will be ₹15,00,000. The account matures 21 years after opening.
Using the current 8.2% interest rate and assuming deposits are made at the start of each financial year, the calculator projects a maturity value of approximately ₹48.7 lakh. Of this, roughly ₹15 lakh is your principal and the remaining ₹33.7 lakh is interest earned.
If you increase the annual deposit to ₹1.5 lakh — the maximum allowed — the total contribution over 15 years becomes ₹22.5 lakh. The projected maturity value at 8.2% rises to approximately ₹73 lakh, with interest alone accounting for about ₹50.5 lakh. This is the figure that news reports frequently cite when they say SSY can build a corpus of over ₹70 lakh.
A free Sukanya Samriddhi calculator lets you run these scenarios in seconds. You can compare deposits of ₹25,000, ₹50,000, and ₹1.5 lakh side by side and see how the maturity value scales.
Understanding the deposit rules is essential before you use a calculator, because the tool's output is only as accurate as the inputs you feed it.
The scheme is exclusively for a girl child. A parent or legal guardian can open the account at any time from the girl's birth until she attains the age of 10 years. The account holder must be a resident Indian. Each eligible girl child can have only one SSY account.
A family can open accounts for a maximum of two girl children. However, if the first or second birth results in twins or triplets, more than two accounts are permitted, subject to submission of an affidavit along with the birth certificates. The account is managed by the parent or guardian until the girl turns 18, after which she can operate it herself upon submitting the necessary identity documents.
SSY enjoys what is known as Exempt-Exempt-Exempt (EEE) tax status, which means it receives favourable tax treatment at all three stages of the investment lifecycle.
| Stage | Tax Treatment |
|---|---|
| Contribution | Eligible for deduction under Section 80C of the Income Tax Act, up to ₹1.5 lakh per financial year. This deduction is available under the old tax regime. |
| Interest earned | Completely tax-free during the entire accumulation period. No tax is deducted at source. |
| Maturity withdrawal | The full maturity corpus is exempt from income tax. You receive the entire amount without any deduction. |
The Section 80C deduction is available only under the old tax regime. Under the new tax regime, you cannot claim this deduction, but the interest earned and the maturity amount remain tax-free under both regimes. This distinction matters when you are deciding which tax regime to opt for — the ₹1.5 lakh deduction can meaningfully reduce your taxable income under the old regime.
SSY is designed as a long-term lock-in, but the scheme does provide for withdrawals in specific circumstances.
Partial withdrawal for education: After the girl turns 18 or passes Class 10 (whichever is earlier), you can withdraw up to 50% of the balance that stood at the end of the previous financial year. This withdrawal is specifically for higher education expenses and can be taken as a lump sum or in instalments over up to five years. The total withdrawal cannot exceed the actual educational expenses.
Premature closure: The account can be closed before maturity only under specific conditions. These include life-threatening illness of the account holder, death of the guardian operating the account, or situations causing undue hardship to the account holder. Normal premature closure is allowed after the girl turns 18 if she is getting married. In all other cases, the account must run its full 21-year term.
The two most frequently compared small savings instruments are the Sukanya Samriddhi Yojana and the Public Provident Fund. Both enjoy EEE tax status, both are government-backed, and both are designed for long-term wealth creation. The differences lie in the rate, the eligibility, and the timeline.
| Feature | Sukanya Samriddhi Yojana | Public Provident Fund |
|---|---|---|
| Interest rate | 8.2% per annum | 7.1% per annum |
| Eligibility | Only for a girl child below 10 years | Open to all resident Indians |
| Contribution period | 15 years | 15 years |
| Maturity period | 21 years | 15 years |
| Minimum deposit | ₹250 per year | ₹500 per year |
| Maximum deposit | ₹1.5 lakh per year | ₹1.5 lakh per year |
| Tax status | EEE | EEE |
SSY wins on the interest rate by a full percentage point, and the additional six years of compounding after contributions stop gives it a further edge. PPF, however, is more flexible because it is open to anyone and matures six years earlier. If you have a daughter under 10 years of age and a long-term horizon, SSY is almost always the better choice for the portion of your savings you want parked in a government-guaranteed instrument.
The Sukanya Samriddhi Yojana continues to offer an interest rate of 8.2% per annum, compounded annually. This rate is reviewed every quarter by the Ministry of Finance, and it has remained unchanged for several consecutive quarters because it is already among the highest among small savings instruments. The interest is calculated on a monthly basis on the lowest balance between the fifth day and the end of each month.
You can invest a minimum of ₹250 and a maximum of ₹1.5 lakh in a financial year. Deposits must be made in multiples of ₹50, and there is no restriction on the number of deposits you can make within a year. Contributions are required for 15 years from the date of account opening, but the account continues to earn interest for a full 21 years.
A family can normally open accounts for a maximum of two girl children. However, if the first or second birth results in twins or triplets, more than two accounts are permitted. You will need to submit an affidavit along with the birth certificates to open the additional accounts.
If you fail to deposit the minimum ₹250 in any financial year, the account is treated as defaulted. You can regularise it by paying a penalty of ₹50 for each defaulted year along with the minimum deposit amount. The account does not earn interest during the default period until it is regularised.
Yes. SSY enjoys Exempt-Exempt-Exempt (EEE) tax status. Your annual contributions qualify for deduction under Section 80C up to ₹1.5 lakh, the interest earned during the accumulation phase is fully tax-free, and the entire maturity corpus is exempt from income tax at withdrawal. This triple tax benefit makes it one of the most tax-efficient instruments available in India.
Partial withdrawal is allowed for higher education purposes after the girl turns 18 or passes Class 10, whichever is earlier. You can withdraw up to 50% of the balance that stood at the end of the previous financial year. Premature closure is permitted only under specific circumstances such as life-threatening illness of the account holder, death of the guardian, or situations causing undue hardship.
The most notable difference is the interest rate. SSY offers 8.2% while PPF offers 7.1%. SSY is exclusively for a girl child below 10 years of age, whereas PPF is open to all. SSY requires contributions for 15 years but matures in 21 years, while PPF has a 15-year lock-in. Both enjoy EEE tax status, but SSY's higher rate makes it more attractive for long-term corpus building for a daughter.
The calculator uses the compound interest formula A = P(1 + r/n)^(nt), where P is the annual contribution, r is the annual interest rate, n is the number of times interest compounds per year, and t is the number of years. For SSY, interest compounds annually, and the tool factors in the 15-year contribution period and 21-year maturity horizon. It also accounts for the fact that deposits stop after 15 years while the corpus continues to grow for the remaining 6 years.
In sum, the Sukanya Samriddhi calculator is more than a projection tool — it is a planning instrument that translates a long-term commitment into a concrete target. Whether you are depositing the minimum ₹250 a year or the maximum ₹1.5 lakh, the calculator shows you exactly what the 8.2% compounded rate can do over 21 years. Use the Sukanya Samriddhi Yojana calculator above to model your own contribution, check the maturity value, and decide how much you need to set aside each year to reach the corpus your daughter will need for her education and beyond.