NSC Calculator (National Savings Certificate)
By Santaji GadepatilinUpdated October 27, 2026
The National Savings Certificate is a five-year post office savings scheme with interest compounded yearly and paid at maturity. This free NSC calculator solves for whichever value you leave blank and shows the formula and steps.
How to use the NSC calculator
Enter the amount you will invest in NSC and the interest rate (currently 7.7%). The tenure is fixed at 5 years. The calculator shows the maturity value and the interest earned.
The NSC formula
F = P × (1 + r)5
Interest compounds annually but is paid only at maturity.
Worked example
₹1,00,000 at 7.7% for 5 years:
| Year | Interest for the year | Balance |
|---|---|---|
| 1 | ₹7,700 | ₹1,07,700 |
| 2 | ₹8,293 | ₹1,15,993 |
| 3 | ₹8,931 | ₹1,24,924 |
| 4 | ₹9,619 | ₹1,34,544 |
| 5 | ₹10,360 | ₹1,44,903 |
Maturity = ₹1,44,903, interest = ₹44,903.
NSC at a glance
- Minimum: ₹1,000, in multiples of ₹100. No maximum.
- Tenure: 5 years.
- Tax: deposit up to ₹1.5 lakh qualifies under 80C (old regime). Interest is taxable at maturity, but the yearly accrued interest for years 1–4 also qualifies for 80C.
- Safety: backed by the Government of India.
- Where: any post office, online through India Post internet banking.
NSC vs tax-saving FD vs PPF
| NSC | Tax-saving FD | PPF | |
|---|---|---|---|
| Lock-in | 5 years | 5 years | 15 years |
| Rate | 7.7% | Bank rate | 7.1% |
| Interest taxable | Yes | Yes | No |
Keep in mind
NSC suits people in the old regime who want a guaranteed return with a 5-year lock-in. In the new regime, the 80C benefit does not apply.
Frequently asked questions
What is the current NSC interest rate?
7.7% a year, compounded annually and paid at maturity, for October–December 2026. The rate on the day you buy is locked for 5 years.
What will ₹1 lakh in NSC become?
About ₹1,44,903 after 5 years at 7.7%, earning about ₹44,903 in interest.
Is NSC interest taxable?
Yes, at maturity it is taxed at your slab rate. Under the old regime, the yearly accrued interest for the first 4 years counts as reinvested and qualifies for 80C.
Can I withdraw NSC early?
Only on the holder’s death, a court order or forfeiture by a pledgee. Otherwise it is locked for 5 years.