What Is the NSC Maturity Calculator?
This tool applies to India. The National Savings Certificate (NSC) is a fixed-income savings scheme backed by the Government of India and offered at post offices. The current NSC VIII issue has a fixed tenure of 5 years and interest that compounds annually but is payable at maturity. This calculator estimates how much your lump-sum investment will grow to by maturity. The prevailing interest rate is set by the government each quarter (around 7.7% per annum at the time of writing); always confirm the current rate before investing.
How to Use It
Enter the amount you plan to invest, the applicable annual interest rate as a percentage, and the tenure in years (NSC is 5 years). The calculator returns the maturity value, the original amount invested, and the total interest earned over the period.
The Formula Explained
NSC interest compounds annually, so the maturity value follows the standard compound-interest formula:
$$M = P \times (1 + r)^{t}$$
where P is the principal, r is the annual interest rate written as a decimal (7.7% = 0.077), and t is the number of years. The total interest is simply \(M - P\).
Worked Example
Suppose you invest ₹1,00,000 at 7.7% for 5 years. Then $$M = 100000 \times (1.077)^{5} = 100000 \times 1.44903 \approx ₹1{,}44{,}903.$$ The total interest earned is about ₹44,903.
FAQ
Is NSC interest taxable? The interest is taxable, but the annually accrued interest (except in the final year) is deemed reinvested and qualifies for deduction under Section 80C. The principal investment also qualifies under 80C up to ₹1.5 lakh.
Does the rate change during the term? No. The interest rate applicable at the time of purchase is locked in for the full 5-year tenure, even if rates change later.
Is there a maximum investment? There is no upper limit on the amount you can invest in NSC, though only ₹1.5 lakh per year qualifies for the 80C tax benefit.
