ReckonBoxHow the Sukanya Samriddhi Yojana calculator works
A Sukanya Samriddhi Yojana calculator projects a girl child's SSY account to maturity: it takes your deposit and the interest rate, deposits for 15 years, then compounds the balance to the 21-year maturity. Sukanya Samriddhi Yojana is a government savings scheme for a girl child, and it pays 8.2% a year for the July to September 2026 quarter, compounded annually, which is higher than PPF's 7.1%. The account is opened before the girl turns 10, and this tool shows the maturity value, the interest, and the tax saved.
The default numbers show why the scheme is generous. Depositing the full Rs 1,50,000 a year for 15 years at 8.2% grows to about Rs 71.82 lakh by the 21-year maturity, on Rs 22.5 lakh deposited. The other Rs 49.3 lakh is interest, and all of it is tax-free.
The two phases: 15 years in, 21 years to mature
Sukanya Samriddhi Yojana has a deposit phase of 15 years and a maturity of 21 years, so for the final 6 years the balance earns interest with no new deposits. This gap is where half the calculators go wrong, treating the account as if you pay in for all 21 years or for a vague 14. You pay for 15, then the accumulated balance simply compounds for another 6.
The effect is large, because those last 6 years work on the biggest balance. On the default deposit, the account holds about Rs 44.76 lakh at the end of year 15, the last year you pay in. With no further deposits, it grows to about Rs 71.82 lakh by year 21, so roughly Rs 27 lakh of the maturity is interest earned after you stopped contributing. The year-by-year table in the tool shows deposits stopping at year 15 and the balance climbing on its own after that.
Yearly or monthly deposits
Like PPF, Sukanya Samriddhi interest is calculated on the monthly minimum balance, so when you pay in matters. A single deposit made early in the year earns interest on the whole amount for all 12 months, while the same money spread across the year earns less, because each installment sits in the account for only part of the year.
The difference is real money over 15 years. Paying Rs 1.5 lakh in one yearly deposit matures at about Rs 71.82 lakh, while Rs 12,500 a month, the same Rs 1.5 lakh a year, matures at about Rs 69.33 lakh, a gap of roughly Rs 2.49 lakh for the identical Rs 22.5 lakh deposited. This calculator models both correctly, so the monthly figure is honest and not just the yearly number relabelled.
A year-by-year worked example
Follow the default Rs 1.5 lakh yearly deposit at 8.2%. Each year the deposit is added and the whole balance earns interest, until deposits stop at year 15.
| Year | Deposit | Interest that year | Balance |
|---|---|---|---|
| 1 | Rs 1,50,000 | Rs 12,300 | Rs 1,62,300 |
| 15 | Rs 1,50,000 | Rs 3,39,215 | Rs 44,75,989 |
| 16 | Rs 0 | Rs 3,67,031 | Rs 48,43,020 |
| 21 | Rs 0 | Rs 5,44,301 | Rs 71,82,119 |
By the final year the account earns about Rs 5.44 lakh of interest on its own, more than three times the Rs 1.5 lakh you used to deposit each year. That's compounding running unaided through the six-year gap.
Tax benefits and the rules
Sukanya Samriddhi Yojana is fully exempt-exempt-exempt: the deposit earns a Section 80C deduction, the interest is tax-free, and the maturity is tax-free. The 80C deduction covers up to Rs 1.5 lakh of deposit a year under the old regime, and this calculator turns it into a rupee figure. A 30% taxpayer depositing the full Rs 1.5 lakh saves Rs 46,800 in tax each year including the 4% cess, which is Rs 7.02 lakh across the 15 deposit years on top of the interest.
A few limits shape the account. Deposits run from Rs 250 to Rs 1,50,000 a year, and at least Rs 250 a year keeps it active. The account is opened for a girl child before she turns 10, and a family can hold two, one per girl, or three if a later birth is twins or triplets. Once she turns 18, up to half the previous year's balance can be withdrawn for her higher education, and the account can be closed for her marriage after 18.
SSY or PPF
Both Sukanya Samriddhi Yojana and PPF are government-backed, fully tax-free schemes, but they differ on rate, purpose, and timeline.
| Feature | Sukanya Samriddhi Yojana | PPF |
|---|---|---|
| Rate | 8.2%, set quarterly | 7.1%, set quarterly |
| For whom | A girl child under 10 | Anyone |
| Deposit period | 15 years | 15 years |
| Matures | 21 years from opening | 15 years from opening |
| Yearly limit | Rs 1.5 lakh | Rs 1.5 lakh |
| Tax | Fully tax-free (EEE) | Fully tax-free (EEE) |
SSY pays more and runs longer, but it locks the money to a daughter's education and marriage; the PPF calculator covers the general-purpose version that anyone can open. To size the total a goal like education needs, the retirement corpus calculator uses the same backward-from-a-target maths for any long horizon.
What this does not promise
The 8.2% rate is not fixed for the life of the account. The government resets Sukanya Samriddhi every quarter, so a 21-year projection at today's rate is a planning estimate, and the real maturity drifts as the rate changes over the decades the account runs. The tool holds the rate you enter flat across the term, which is the standard convention, so treat the output as an illustration pinned to today's rate. SSY returns and rules are set by the government and this is not investment advice, so a SEBI-registered adviser can weigh it against your other goals for the child.
Frequently asked questions
What is a Sukanya Samriddhi Yojana calculator? A Sukanya Samriddhi Yojana calculator estimates the maturity amount of an SSY account for a girl child, from the deposit, the interest rate, and the scheme's fixed timeline. It deposits for 15 years, compounds the balance to the 21-year maturity, and shows the total interest and the 80C tax the deposit saves.
What is the current SSY interest rate? The Sukanya Samriddhi Yojana interest rate is 8.2% per annum for the July to September 2026 quarter, compounded annually. The government sets it every quarter, and it has stayed at 8.2% since January 2024. At 8.2%, SSY currently pays more than PPF's 7.1%.
How many years do you deposit in SSY, and when does it mature? You deposit into a Sukanya Samriddhi account for 15 years from the date it is opened, and the account matures 21 years from opening. For the final 6 years there are no deposits, but the balance keeps earning interest, which is why the maturity value is much larger than the total deposited.
How much can I deposit in SSY per year? You can deposit a minimum of Rs 250 and a maximum of Rs 1,50,000 in a Sukanya Samriddhi account per financial year. A deposit of at least Rs 250 a year keeps the account active, and amounts above Rs 1.5 lakh are not accepted, which is why this calculator caps the yearly deposit there.
What is the maturity amount for Rs 1.5 lakh a year in SSY? Depositing the full Rs 1,50,000 a year for 15 years at 8.2% grows to about Rs 71.82 lakh at the 21-year maturity, on Rs 22.5 lakh deposited. The rest, about Rs 49.3 lakh, is tax-free interest earned over the 21 years.
Who is eligible for Sukanya Samriddhi Yojana? A Sukanya Samriddhi account is opened by a parent or guardian for a girl child before she turns 10. A family can hold at most two accounts, one for each girl, with a third allowed if a later birth is twins or triplets.
Is Sukanya Samriddhi Yojana tax-free? Yes, SSY has the full exempt-exempt-exempt status. The deposit earns a Section 80C deduction of up to Rs 1.5 lakh under the old regime, the interest is tax-free, and the maturity amount is tax-free, the same treatment as PPF.
Can I withdraw from SSY before maturity? Once the girl turns 18, up to 50% of the balance at the end of the previous financial year can be withdrawn for her higher education. The account can also be closed early for her marriage after she turns 18. It otherwise stays locked until the 21-year maturity.