NSC Calculator – Calculate NSC Interest & Maturity Value

An NSC Calculator shows you exactly what a National Savings Certificate will be worth on the day it matures. You put in how much you’re investing and the current rate, and it does the compounding for you — returning the maturity value, total interest earned, and a year-by-year look at how the balance grew. It’s the simplest way to see real numbers behind an NSC investment before you walk into the post office.

Minimum ₹1,000, in multiples of ₹100. No maximum limit.

Rates are notified quarterly. Current: 7.7% p.a. for Q2 FY 2026–27 (July–September 2026). Verify the latest rate with India Post before investing.

NSC has a fixed 5-year maturity period. The 10-year NSC was discontinued in 2015.

Maturity Value
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Total Interest
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Interest as % of Principal
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Growth Multiple
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NSC Maturity Value
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Set your inputs to calculate
Year Opening Balance Interest Earned Closing Balance

🔥 Popular Calculators

A quick word on what the model assumes. This NSC Calculator treats the rate as fixed for the whole tenure, which is how the scheme works — the rate applicable on the date of purchase stays with your certificate for the full term, even if the government revises NSC rates later. Interest compounds annually and gets reinvested, matching the way NSC accrues interest without paying it out until maturity. The tool doesn’t account for premature closure, and it doesn’t apply tax adjustments — NSC has no TDS on interest, and any Section 80C deduction is separate from the maturity calculation. The maturity figure is a straight calculation based on the rate and tenure shown. Rates are notified each quarter, so if you’re reading this in a later quarter, check India Post for the latest rate applicable on your purchase date.

🌍 This NSC Calculator is built for investors in India’s National Savings Certificate scheme. All figures are shown in Indian Rupees (₹), and the interest rate, tenure, and rules referenced here are specific to the NSC available through India Post. If you’re modelling a similar government-backed savings scheme in another country, the math may translate but the rules won’t apply.

What Is an NSC Calculator?

An NSC Calculator is a projection tool that works out the maturity value and total interest earned on a National Savings Certificate. You enter the amount you’re investing and the current rate, and it returns the final balance along with a year-by-year breakdown of how that balance grew.

Why bother with an NSC interest calculator instead of just looking at the brochure? Because National Savings Certificate interest behaves differently from a typical fixed deposit. The interest compounds every year, but it doesn’t get paid out. It’s added back to the principal, and next year’s interest is calculated on that larger amount. This carries on for the entire five-year term, and at the end you receive one lump sum — the original deposit plus every bit of accumulated interest. An NSC maturity calculator makes that compounding visible, so you can see exactly how much of your final balance came from your own money and how much came from interest earning its own interest.

For anyone using NSC as part of Section 80C tax planning, the calculator is especially handy. You can see the maturity value before you commit, and you can stack it against other tax-saving options like PPF or a tax-saving fixed deposit. A National Savings Certificate calculator turns the brochure into actual numbers you can plan around.

How to Use This NSC Calculator

Two inputs, plus four preset buttons for common investment amounts.

Investment Amount. How much you plan to put into the certificate. Minimum is ₹1,000, and any additional amount has to be in multiples of ₹100. There’s no upper limit — invest as much as you like. Do keep in mind that the Section 80C tax deduction caps at ₹1.5 lakh per financial year, so anything above that doesn’t qualify for the deduction. It still earns the NSC rate though, so the extra money isn’t wasted.

Interest Rate. The rate notified by the Ministry of Finance for the quarter in which you buy the certificate. For the July–September 2026 quarter, that’s 7.7% per annum. Once your certificate is issued, that rate stays with it for the full five years — later revisions to NSC rates don’t affect you. Rates are notified quarterly, so if you’re viewing this in a later quarter, verify the current rate with India Post before using it. To see how a lower or higher rate would change the result, adjust the input and recalculate.

Tenure. NSC runs for a fixed five years from the date of investment. The old 10-year NSC (IX Issue) was discontinued back in 2015, so any new certificate is a five-year product. The tenure field is locked at 5 years because that’s how the scheme works — there’s no flexibility here.

How to Calculate NSC Interest

NSC interest calculation is straightforward once you understand how the compounding works. Interest is earned each year but not paid out — it gets added to the principal, and next year’s interest is calculated on the bigger balance. That’s the same mechanism as any compound interest product, but NSC has its own quirk: compounding happens once a year, not monthly or quarterly.

The compound interest formula applies directly:

M = P × (1 + r/100)n

Where M is the maturity value, P is the principal invested, r is the annual interest rate, and n is the number of years. For NSC, n is always 5.

Here’s what that looks like year by year for a ₹1,00,000 investment at 7.7%:

  • Year 1: Opening balance ₹1,00,000, interest ₹7,700, closing balance ₹1,07,700
  • Year 2: Opening balance ₹1,07,700, interest ₹8,292.90, closing balance ₹1,15,992.90
  • Year 3: Opening balance ₹1,15,992.90, interest ₹8,931.45, closing balance ₹1,24,924.35
  • Year 4: Opening balance ₹1,24,924.35, interest ₹9,619.17, closing balance ₹1,34,543.52
  • Year 5: Opening balance ₹1,34,543.52, interest ₹10,359.85, closing balance ₹1,44,903.37

So the final balance — ₹1,44,903 — is the maturity value. Total interest earned comes to ₹44,903. Notice how the interest earned in year five (₹10,359.85) is significantly higher than in year one (₹7,700), even though the rate never budged. That’s compounding at work, running on a slightly bigger base every year. This matches the India Post NSC maturity table for ₹1,000, which shows ₹1,449 at maturity — the same compounding logic at a smaller scale.

How NSC Maturity Value Is Calculated

The maturity value is just the principal plus all the compounded interest. There are no interim payouts, no reinvestment decisions, and no rate changes during the term. The certificate runs for exactly five years, and at the end of that period you receive the accumulated balance in one go.

The NSC maturity value calculator formula is the same compound interest formula shown above. What makes an NSC maturity calculator useful is that it runs the compounding year by year instead of applying the formula in one step. That way you can see the interest earned each year, the opening and closing balances, and how the annual increments get bigger over time.

One thing worth noting: interest that accrues each year is generally treated as taxable income in that year, even though you don’t physically receive it until maturity. Tax treatment can depend on the applicable tax regime and current income-tax rules. Verify the current rules with the Income Tax Department for your specific situation. This calculator doesn’t model tax; it shows the pre-tax maturity value and the pre-tax interest earned.

NSC Calculator Formula

The formula this NSC interest calculator uses is:

M = P × (1 + r/100)n

Where:

  • M = Maturity value
  • P = Principal invested
  • r = Annual interest rate (as a percentage)
  • n = Tenure in years (5 for NSC)

The total interest is then:

Total Interest = M − P

Because NSC compounds annually, there’s no compounding frequency adjustment to worry about. The annual rate is applied once per year, and the interest gets added back to the balance. The year-by-year simulation in the calculator does the same thing in five steps, which is why the output table shows a different number for each year rather than one flat total.

If you want a quick sanity check on the calculator’s output, the Rule of 72 is a useful shortcut. At 7.7%, money doubles roughly every 9.4 years (72 ÷ 7.7). Over five years, the growth multiple works out to about 1.45×, meaning ₹1,00,000 grows to roughly ₹1,45,000. That’s close to the exact figure of ₹1,44,903. The Rule of 72 is approximate, but it’s a handy way to confirm the calculator isn’t spitting out something wildly off.

Example of NSC Calculation

Let’s walk through three common investment amounts and see how the maturity value changes.

Example 1: Minimum Investment — ₹1,000

The smallest NSC you can buy, held for the full five years at 7.7%.

  • Principal: ₹1,000
  • Total interest: ₹449.03
  • Maturity value: ₹1,449.03
  • Growth multiple: 1.45×

Example 2: A Typical Tax-Saving Investment — ₹1,50,000

This is the maximum that qualifies for the Section 80C deduction in a single financial year.

  • Principal: ₹1,50,000
  • Total interest: ₹67,355.05
  • Maturity value: ₹2,17,355.05
  • Growth multiple: 1.45×

If you’re in the 30% tax bracket and file under the old tax regime, this investment could save you up to ₹45,000 in tax in the year of investment (30% of ₹1,50,000), depending on your overall tax situation. The maturity value is unaffected by the deduction — the whole ₹1.5 lakh earns the NSC rate.

Example 3: A Larger Investment — ₹5,00,000

An investment above the 80C limit, where only the first ₹1.5 lakh qualifies for the deduction.

  • Principal: ₹5,00,000
  • Total interest: ₹2,24,516.83
  • Maturity value: ₹7,24,516.83
  • Growth multiple: 1.45×

These tools cover the other pieces of a savings or investment plan.

Additional Financial Resources

For official information on National Savings Certificate rules, current interest rates, and how to open or close an NSC account, the India Post savings schemes page is the authoritative source.

For the government notification of small savings scheme interest rates (including NSC), updated quarterly, the Reserve Bank of India publishes the official circulars.

For plain-English guidance on Section 80C tax deductions and how NSC compares with other tax-saving instruments under Indian tax law, the Income Tax Department of India provides the official reference.

NSC Calculator FAQs

It’s a tool that estimates the maturity value and total interest on a National Savings Certificate. You enter the amount and the interest rate, and it shows the final balance with a year-by-year breakdown of how the balance grew through annual compounding.
For the July–September 2026 quarter (Q2 FY 2026–27), the NSC rate is 7.7% per annum, unchanged from the previous quarter. Rates are notified by the Ministry of Finance every quarter, and this one has stayed steady for several cycles. Once you buy a certificate, the rate applicable on the date of purchase stays with your certificate for the full five years — later government revisions don’t affect it. Rates can change at the start of each quarter, so verify the current rate with India Post before you invest.
NSC maturity value uses the compound interest formula: M = P × (1 + r/100)^n. Interest is compounded annually, so each year’s interest is added to the principal and next year’s interest runs on the bigger amount. After five years, the accumulated balance is the maturity value. An NSC maturity calculator runs this year by year so you can see exactly how the balance builds up.
Minimum is ₹1,000, and additional amounts must be in multiples of ₹100. There’s no maximum — invest as much as you want. Just remember that the Section 80C deduction caps at ₹1.5 lakh per financial year, so anything above that doesn’t count for the deduction, even though it still earns the NSC rate.
NSC interest is generally taxable as income from other sources, and no TDS is deducted on it. The interest accrues each year and is typically taxable in that year, even though it isn’t paid out until maturity. Tax treatment can depend on the applicable tax regime and current income-tax rules — for example, under the old regime, accrued interest for the first four years is often treated as reinvested and may qualify for Section 80C, but this isn’t available under the new regime. Verify the current rules with the Income Tax Department for your specific situation. This calculator shows the pre-tax maturity value and pre-tax interest.
NSC cannot normally be closed before the five-year maturity. Premature closure is permitted only in specific circumstances — on the death of the account holder, on forfeiture by a pledgee, or when ordered by a court. If closed within one year, only the principal is returned. If closed after one year but before three years, interest is paid at the Post Office Savings Account rate rather than the NSC rate. Closure after three years but before maturity may be allowed at a reduced rate depending on the applicable rules. Confirm the specific provisions in the National Savings Certificate Scheme, 2019, or with India Post before acting.
NSC is a government-backed small savings scheme with a few defining features. It has a fixed five-year maturity period with no early exit under normal circumstances. The interest rate is notified quarterly and stays with your certificate for the full term. Interest compounds annually and is reinvested, so it keeps earning returns. The scheme qualifies for Section 80C deductions under the old tax regime, subject to the ₹1.5 lakh annual limit. Interest accrued each year is generally taxable income, though reinvested interest in the first four years may also qualify for the 80C deduction depending on the regime. Premature closure is permitted only in exceptional circumstances. Minimum investment is ₹1,000 with no upper limit.
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⚠️ Disclaimer: The results from this NSC Calculator are hypothetical projections based on the inputs you provide and are for educational and informational purposes only. They are not financial, investment, or tax advice. The tool assumes a fixed interest rate for the full tenure, annual compounding, and no premature closure. It does not model taxes, the Section 80C deduction, or changes to NSC rules. The current NSC interest rate is 7.7% p.a. for the July–September 2026 quarter, but rates are notified quarterly and can change. Verify the latest rates and rules with India Post or a qualified financial adviser before making investment decisions.