🏤 Post Office Savings Calculator

Calculate maturity value and returns for India's three most popular Post Office savings schemes — NSC, KVP, and SCSS. Rates last reviewed: July 2026.

🏤 Scheme Details
%
NSC has a fixed 5-year lock-in. Interest compounds annually but is paid out only at maturity.
📊 Results
Principal vs Interest
Growth Over Time
🏤

Choose a Scheme & Enter Details

Select NSC, KVP, or SCSS above, fill in your investment amount and rate, then click Calculate.

Guide

What Is the Post Office Savings Calculator?

Last updated: July 2026 · Reviewed by the NeftCal editorial team

The Post Office Savings Calculator projects returns for three of India's most widely used government-backed small savings schemes in one tool: the NSC calculator mode for National Savings Certificates, the KVP calculator mode for Kisan Vikas Patra, and the SCSS calculator mode for the Senior Citizen Savings Scheme. All three are offered through India Post and authorised banks, and are popular for their sovereign backing and predictable, quarterly-revised returns compared to market-linked investments.

Switch between the three modes using the toggle above the form. NSC and KVP both compound annually, so the calculator applies the compound interest formula to project the maturity value at the end of the scheme's fixed term (or, for KVP, at your own custom tenure). KVP additionally derives its doubling period — the number of years and months it takes your investment to double — directly from the interest rate you enter, using the standard compound-interest doubling formula. SCSS works differently: interest is simple, not compounded, and paid out every quarter directly to the investor rather than added back to the principal, so the calculator shows your quarterly payout, annual payout, and total interest received over the tenure, with your principal returned unchanged at maturity.

Who Should Use This Calculator

This tool suits salaried taxpayers looking for a guaranteed Section 80C investment (NSC), risk-averse savers who like the simplicity of a "money doubles" promise (KVP), retirees or soon-to-retire individuals wanting predictable quarterly income (SCSS), and anyone comparing these government-backed schemes against a bank FD or RD before committing funds.

Why It Matters for Financial Planning

Post office schemes remain a cornerstone of conservative, risk-free savings in India — especially for retirees relying on SCSS for steady quarterly income, or investors using NSC for a guaranteed 80C tax-saving investment alongside their PPF and ELSS allocations. Because interest rates are revised quarterly by the Ministry of Finance and each scheme has meaningfully different compounding, payout, and tax rules, it's easy to misjudge the real return by treating them as interchangeable. This calculator makes the maturity value, doubling period, and payout schedule concrete before you commit funds for years at a time.

Common Scenarios

  • Comparing NSC's guaranteed 80C benefit against other tax-saving options like PPF before the financial year-end
  • Checking whether SCSS or a senior-citizen bank FD gives better quarterly retirement income
  • Working out how long KVP takes to double your money at the current quarterly-notified rate
  • Comparing a lump-sum NSC investment against building up the same amount via a monthly Recurring Deposit
  • Estimating SCSS quarterly payouts against the ₹30 lakh investment cap before opening an account

Tips for Accurate Results

  • Always check the latest quarterly-notified rate on the India Post or National Savings Institute website before investing — the default rates here are illustrative and may not reflect the current quarter
  • For SCSS, remember the ₹30 lakh cap applies per depositor — the calculator will warn you if you exceed it
  • Use KVP's custom tenure field if you're considering withdrawing before the full doubling period, since KVP allows encashment after 2.5 years
  • Factor in tax treatment separately — NSC, KVP, and SCSS interest is taxable in different ways, so the maturity or payout figures shown are pre-tax
  • Re-run NSC and SCSS side by side at the same investment amount to compare a lock-and-grow scheme against a regular-income scheme
Formula

How NSC, KVP & SCSS Returns Are Calculated

Each scheme uses a different interest structure

A. NSC (Annual Compounding, 5-Year Lock-in)
Maturity Value = P × (1 + r)^5
Total Interest = Maturity Value − P

B. KVP (Doubling Period from Rate)
Doubling Period (years) = ln(2) ÷ ln(1 + r)
Maturity Value at Custom Tenure = P × (1 + r)^n

C. SCSS (Simple Interest, Quarterly Payout)
Quarterly Payout = P × (r ÷ 4)
Annual Payout = Quarterly Payout × 4
Total Interest over Tenure = Quarterly Payout × Number of Quarters

Legend
P = Principal invested · r = Annual interest rate (decimal) · n = Tenure in years
📜

NSC — Grow & Save Tax

National Savings Certificate locks your money for 5 years, compounding annually but paying interest only at maturity. It qualifies for Section 80C deduction in the year invested, making it popular with salaried taxpayers.

📈

KVP — Simple Doubling

Kisan Vikas Patra is designed around a simple promise: your money doubles in a fixed number of months at the prevailing rate. No 80C benefit, but no maximum investment limit either.

👴

SCSS — Regular Income

Senior Citizen Savings Scheme pays interest out every quarter rather than compounding it, making it a favorite for retirees who need predictable income. Capped at ₹30 lakh, with a 5-year tenure extendable once by 3 years.

⚙️ Why These Formulas Work

NSC and KVP both use standard annual compounding — interest earned each year is added back to the principal so next year's interest is calculated on a larger base, which is why P × (1 + r)ⁿ grows faster than simple interest over time. KVP's doubling period simply asks "at what n does (1 + r)ⁿ equal 2?" and solving that equation for n gives ln(2) ÷ ln(1 + r). SCSS instead pays simple interest each quarter — P × (r ÷ 4) — without reinvesting it, so your principal never grows and each quarterly payout is identical, which is exactly what makes it suitable as a predictable income stream rather than a growth instrument.

🎯 When to Use Each Formula

  • NSC — a fixed 5-year, grow-and-collect-at-maturity investment with a Section 80C tax benefit
  • KVP — an open-ended, doubling-focused investment with no 80C benefit and no maximum limit
  • SCSS — a quarterly-income instrument for those 60+ (or eligible retirees) who need regular payouts, not growth

📋 Assumptions

  • The interest rate you enter stays fixed for the full tenure (real-world rates reset only for new investments each quarter, not existing ones)
  • NSC and KVP assume no premature encashment during the calculation period
  • SCSS assumes all quarterly payouts are withdrawn as paid, not reinvested
  • All calculations are pre-tax and pre-TDS

⚠️ Limitations of the Formulas

  • Doesn't apply actual TDS thresholds or deduction mechanics for SCSS
  • Doesn't model premature-closure penalties for NSC, KVP, or SCSS
  • Doesn't account for the SCSS extension period's different rate after year 5
  • Rates are illustrative defaults — always confirm the current quarterly-notified rate before investing
Walkthrough

Step-by-Step: How to Use the Post Office Savings Calculator

From scheme selection to maturity value in under a minute

Choose a scheme

Select NSC, KVP, or SCSS using the toggle at the top of the calculator, depending on which India Post savings scheme you want to evaluate.

Enter your investment amount

Input the amount you plan to invest — minimum ₹1,000 for all three schemes, with a ₹30 lakh cap for SCSS specifically.

Enter the interest rate

Enter the current quarterly-notified rate for your chosen scheme from the India Post or National Savings Institute website — the pre-filled rate is illustrative only.

Set the tenure (KVP and SCSS only)

For KVP, optionally enter a custom tenure to see the value before the full doubling period. For SCSS, enter the tenure in years (standard is 5, extendable once by 3).

Click Calculate and review your results

See the maturity value (NSC), doubling period and maturity value (KVP), or quarterly/annual payout and total interest (SCSS), along with charts and a year-wise or quarter-wise breakdown table.

Example

Worked Examples

Realistic NSC, KVP, and SCSS calculations using this calculator's own default values

NSC Scenario

Suppose you invest ₹1,00,000 in NSC at 7.7% annual interest, compounded annually over the fixed 5-year lock-in — this calculator's own NSC defaults.

Investment (P)₹1,00,000
Rate (r)7.7%
CompoundingAnnual
Lock-in5 years
Apply the NSC formula: Maturity = 1,00,000 × (1.077)⁵ ≈ ₹1,44,903. Total Interest = 1,44,903 − 1,00,000 ≈ ₹44,903, paid out only at maturity, not annually.
Maturity Value (5 yrs)
₹1,44,903
Total Interest
₹44,903
Lock-in Period
5 years

KVP Scenario

Suppose you invest ₹1,00,000 in KVP at 7.5% annual interest — this calculator's own KVP defaults, with a 5-year custom tenure check.

Investment (P)₹1,00,000
Rate (r)7.5%
Custom tenure check5 years
Step 1 — Doubling period: Doubling Period = ln(2) ÷ ln(1.075) ≈ 9.58 years, or about 9 years 7 months. At that point your ₹1,00,000 grows to approximately ₹2,00,000 — the defining KVP promise.
Step 2 — Value at 5 years: Maturity at custom tenure = 1,00,000 × (1.075)⁵ ≈ ₹1,43,563 — well short of doubling, since 5 years is only about half the ~9.6-year doubling period.
Doubling Period
9y 7m
Maturity Value (Doubling)
≈ ₹2,00,000
Value at 5 Years
₹1,43,563

SCSS Scenario

Suppose a senior citizen invests ₹15,00,000 in SCSS at 8.2% annual interest over the standard 5-year tenure — this calculator's own SCSS defaults.

Investment (P)₹15,00,000
Rate (r)8.2%
Tenure5 years (20 quarters)
Step 1 — Quarterly payout: Quarterly Payout = 15,00,000 × (0.082 ÷ 4) = 15,00,000 × 0.0205 ≈ ₹30,750, paid every quarter, unchanged for the full tenure.
Step 2 — Annual payout and total interest: Annual Payout = 30,750 × 4 = ₹1,23,000. Total Interest over 5 years (20 quarters) = 30,750 × 20 = ₹6,15,000. The original ₹15,00,000 principal is returned unchanged at maturity.
Quarterly Payout
₹30,750
Total Interest (5 yrs)
₹6,15,000
Principal Returned
₹15,00,000

Explanation: These three examples show how differently the schemes behave even at similar rates. NSC locks your money and compounds it silently for exactly 5 years, ideal for a set-and-forget tax-saving goal. KVP makes no fixed-term promise at all — it simply doubles your money over however long the current rate implies, useful for open-ended goals. SCSS never grows your principal; instead it converts it into a steady quarterly paycheck, which is precisely why it's the go-to scheme for retirees who need income rather than growth.

Interpretation

Understanding Your Results

What your scheme's return actually tells you, and how it fits alongside other options

Since NSC, KVP, and SCSS serve different purposes, the useful comparison isn't purely rate-based — it's whether the scheme's income shape (grow-and-collect vs. doubling vs. quarterly payout) matches what you actually need the money to do.

Your PriorityBest-Fit SchemeWhy
Guaranteed tax deduction + growthNSCSection 80C eligible, compounds annually, fixed 5-year term
Simple long-term doubling, no fixed termKVPNo 80C benefit, but flexible tenure and no investment cap
Steady quarterly income in retirementSCSSHighest typical rate of the three, but capped at ₹30 lakh and age-restricted

For tax-conscious savers: NSC's Section 80C deduction effectively boosts your real return if you're in a higher tax bracket and haven't exhausted your ₹1.5 lakh 80C limit elsewhere — factor that in alongside the maturity value shown.

For retirees: SCSS's quarterly payout structure is built for spending, not compounding — compare its payout against a senior-citizen bank FD's interest income, and remember the ₹30 lakh cap may mean SCSS is only part of a larger retirement-income allocation.

Risk considerations: this calculator assumes your entered rate holds for the entire tenure, though real rates are only locked in at the time of investment and don't change afterward — new investments each quarter get whatever rate is then current. It doesn't model premature-closure penalties, TDS deduction mechanics, or the SCSS extension period's separate rate. Use the result as a planning estimate, not a certificate-ready figure.

ℹ️

This tool provides general financial estimates for educational purposes only and does not constitute personalized financial or tax advice. Post office scheme interest rates, eligibility rules, and tax treatment are set by the Government of India and revised quarterly — confirm current rates and terms with India Post, your bank, or a licensed financial advisor before investing.

Use Cases

Practical Use Cases for the Post Office Savings Calculator

Where NSC, KVP, and SCSS each earn their keep

🧾

Section 80C tax planning

Check how much an NSC investment reduces your taxable income while it grows toward maturity.

👴

Retirement income planning

Model SCSS's quarterly payout as a predictable income stream alongside a pension or annuity.

📈

Long-term doubling goals

Use KVP to see exactly how many years it takes a lump sum to double at the current rate.

🏦

Post Office vs bank FD comparison

Compare NSC or SCSS maturity/payout figures against a bank fixed deposit at the same amount.

💰

Windfall or bonus parking

Decide whether a lump-sum bonus is better placed in NSC, KVP, or a bank FD for your time horizon.

🎯

Fixed 5-year savings goals

Use NSC's fixed lock-in to plan around a known 5-year milestone like a child's education fund.

🩺

Medical or emergency reserve for seniors

Size SCSS's quarterly payout against expected recurring medical or living expenses.

🏡

Rural and agricultural savings

KVP remains popular in semi-urban and rural India for its simple doubling promise with no paperwork complexity.

⚖️

Portfolio de-risking

Size the guaranteed, sovereign-backed portion of a broader investment portfolio using any of the three schemes.

🔄

SCSS extension decision

Estimate whether extending SCSS by 3 more years after the initial 5-year term still makes sense at the new rate.

👨‍👩‍👧

Multi-generational savings split

Compare NSC (working years) against SCSS (retirement years) as a family plans savings across life stages.

Pros & Cons

Advantages and Limitations

What this Post Office Savings Calculator does well, and where it can't replace professional advice

✅ Advantages

  • Covers three distinct schemes (NSC, KVP, SCSS) in a single tool, each with its correct formula
  • Free, instant, and requires no signup or personal information
  • Runs entirely in your browser — your financial data is never sent to a server
  • NSC and KVP use real annual-compounding math matching India Post's own calculations
  • KVP's doubling period is derived directly from your entered rate, not a fixed lookup table
  • SCSS models simple interest and quarterly payouts correctly, unlike generic compound-interest calculators
  • Built-in ₹30 lakh SCSS cap warning so you don't plan around an invalid amount
  • Year-wise (NSC/KVP) and quarter-wise (SCSS) breakdown tables for full transparency
  • Visual charts (principal vs. interest, growth or payout over time) for quick interpretation
  • Downloadable plain-text summary of your results
  • India-specific by design — the schemes, caps, and tax notes all reflect actual India Post rules

⚠️ Limitations

  • Uses illustrative default rates — actual rates are notified quarterly and must be checked separately
  • Doesn't model premature-closure penalties for any of the three schemes
  • Doesn't apply exact TDS deduction thresholds or mechanics for SCSS
  • Doesn't account for the different rate that applies during an SCSS extension period
  • Doesn't check Section 80C eligibility against your other tax-saving investments
  • Assumes no withdrawal of SCSS payouts is reinvested elsewhere
  • Not a substitute for India Post's official passbook figures or licensed financial advice
Reference

NSC, KVP, SCSS & Bank FD Compared

How the three Post Office schemes stack up against each other and a bank fixed deposit

FeatureNSCKVPSCSSBank FD
Interest typeCompound (annual)Compound (annual)Simple, quarterly payoutCompound (varies)
TenureFixed 5 yearsOpen (doubles at rate-implied period)5 years, extendable by 37 days – 10 years, your choice
Minimum investment₹1,000₹1,000₹1,000₹1,000–5,000 (varies by bank)
Maximum investmentNo limitNo limit₹30,00,000No limit
Section 80C benefitYes, up to ₹1.5 lakhNoYes, up to ₹1.5 lakhOnly 5-year tax-saving FDs
EligibilityAny resident individualAny resident individualAge 60+ (or eligible retirees)Any individual
Backed byGovernment of IndiaGovernment of IndiaGovernment of IndiaBank (DICGC insured up to ₹5L)

Common Mistakes and Expert Tips

❌ Common Mistakes

  • Assuming NSC pays interest annually — it actually pays only at maturity, though it's taxed on an accrual basis each year
  • Confusing KVP's lack of 80C benefit with NSC's, and claiming a deduction that doesn't apply
  • Investing more than ₹30 lakh in SCSS across accounts, which is not permitted per depositor
  • Forgetting SCSS interest is fully taxable in the year received, even though no TDS may be deducted below the threshold
  • Not checking the current quarterly rate before investing, and assuming last quarter's rate still applies
  • Treating all three schemes as interchangeable "safe" options without matching them to the actual cash-flow need (growth vs. income)

💡 Expert Tips & Best Practices

  • Check the current quarter's notified rate on the India Post or National Savings Institute website before finalizing any investment
  • Use NSC to fill any remaining Section 80C headroom after PPF, ELSS, and insurance premiums
  • Ladder SCSS alongside a senior-citizen bank FD to diversify beyond the ₹30 lakh SCSS cap
  • Use KVP's custom tenure field to check partial-period value before assuming you'll hold to the full doubling point
  • Time SCSS account extension decisions around the maturity-quarter rate, since the extension locks in whatever rate applies then
FAQ

Frequently Asked Questions

Common questions about NSC, KVP, and SCSS

What is the minimum investment for NSC, KVP, and SCSS?
NSC and KVP both have a minimum investment of ₹1,000 with no upper limit, and deposits must be in multiples of ₹100. SCSS requires a minimum of ₹1,000 and allows deposits in multiples of ₹1,000, up to a maximum of ₹30 lakh.
Are post office savings schemes safe?
Yes. NSC, KVP, and SCSS are all sovereign-backed schemes run by India Post under the Ministry of Finance, meaning the principal and declared interest are backed by the Government of India — there is no market risk involved, unlike mutual funds or equities.
How are NSC, KVP, and SCSS taxed differently?
NSC interest is taxable each year on an accrual basis (deemed reinvested), and the invested principal qualifies for a Section 80C deduction up to ₹1.5 lakh in the year of investment — but no TDS is deducted. KVP does not qualify for 80C, and its interest is fully taxable on maturity or accrual, also with no TDS. SCSS interest is paid out quarterly and is fully taxable as income in the year received, with TDS deducted if total interest exceeds the applicable threshold in a financial year (senior citizens have a higher TDS threshold under Section 194A).
Can I withdraw NSC, KVP, or SCSS before maturity?
Premature withdrawal is restricted. NSC generally cannot be encashed before 5 years except in cases like the holder's death or court order. KVP can be encashed after 2.5 years (30 months) from the date of deposit. SCSS allows premature closure after 1 year with a penalty deducted from the principal (typically 1–1.5% depending on how early), and after 5 years if extended.
How often are post office scheme interest rates revised?
Interest rates on all post office small savings schemes, including NSC, KVP, and SCSS, are reviewed and notified quarterly by the Ministry of Finance, Government of India. Rates can go up, down, or stay unchanged each quarter based on prevailing government bond yields.
Who is eligible for SCSS?
Individuals aged 60 years or above are eligible for SCSS. Retired defense personnel can invest from age 50, and civilian employees who have taken Voluntary Retirement Scheme (VRS) or superannuation can invest from age 55, provided the account is opened within one month of receiving retirement benefits.
How is the NSC maturity value calculated?
The calculator applies NSC's fixed 5-year annual compounding formula, Maturity Value = P × (1 + r)^5, where P is your investment and r is the annual rate as a decimal. Interest is paid out only at maturity, not annually.
What's the key difference between NSC and KVP?
NSC has a fixed 5-year term and qualifies for a Section 80C tax deduction, while KVP has no 80C benefit and no fixed term — it's instead built around doubling your money, with the doubling period shown in years and months based on the rate you enter.
How does the calculator derive the KVP doubling period?
It uses the compound-interest doubling formula, Doubling Period = ln(2) ÷ ln(1 + r), converts the fractional result into whole years and months, and also shows the maturity value at that doubling point.
Does SCSS interest compound like NSC and KVP?
No. SCSS pays simple interest — Quarterly Payout = P × (r ÷ 4) — paid out to you every quarter rather than added back to the principal. Your original principal is returned unchanged at maturity.
What happens if I enter more than ₹30 lakh for SCSS?
The calculator displays a cap warning ("SCSS has a maximum investment cap of ₹30,00,000 per depositor") and flags the result with a warning note if you calculate with an amount above the cap, since SCSS does not allow deposits beyond that limit.
Can I see year-by-year or quarter-by-quarter breakdowns of my investment?
Yes. NSC and KVP show a year-wise table of closing value and interest accrued, while SCSS shows a quarter-wise table of each payout and the cumulative interest received, alongside the principal-vs-interest and growth charts.
How does SCSS compare to a bank Fixed Deposit for a retiree?
SCSS typically offers a higher rate than most bank FDs and pays interest out quarterly rather than requiring you to choose a payout FD, plus it carries sovereign (Government of India) backing rather than DICGC deposit insurance up to ₹5 lakh. However, SCSS is capped at ₹30 lakh and restricted to those 60+ (or eligible retirees), while a bank FD has no age restriction and a much higher effective ceiling when spread across banks. Many retirees use both together for diversification.
Can NRIs invest in NSC, KVP, or SCSS?
No. NRIs (Non-Resident Indians) are not eligible to open new NSC, KVP, or SCSS accounts. These schemes are restricted to resident Indian citizens. An account holder who subsequently becomes an NRI is generally required to close the account, though rules have varied by scheme and notification — check the latest India Post circular for current treatment.
What happens if I want to extend my SCSS account after 5 years?
SCSS can be extended once for a further 3 years within one year of maturity, by submitting a simple extension application at the post office or bank branch. The extended account earns interest at the rate applicable on the date of maturity, not the original opening rate, and can be closed anytime after the extension without the standard premature-closure penalty once it has run at least one year.
Is there a maximum investment limit for NSC and KVP?
No. Unlike SCSS, which caps total investment at ₹30 lakh per depositor, NSC and KVP have no maximum investment limit — you can invest any amount in multiples of ₹100, though only up to ₹1.5 lakh of NSC principal counts toward the Section 80C deduction in the year of investment.
Learn More

Authoritative Resources on Post Office Savings Schemes

Official guidance to complement this calculator — not a substitute for licensed financial advice

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