What is the National Pension System?
The National Pension System (NPS) is a voluntary, market-linked retirement scheme regulated by the Pension Fund Regulatory and Development Authority (PFRDA). You contribute regularly to a Tier-1 account during your working years; the money is invested across equity, corporate bonds and government securities and compounds until you exit. At retirement, a part of the accumulated corpus is taken as a lump sum and the rest is converted into a lifelong monthly pension by buying an annuity.
Any Indian citizen or NRI aged 18 to 70 can open a Tier-1 account. NPS is popular for its low cost and its extra tax deduction of up to ₹50,000 under Section 80CCD(1B), over and above the ₹1.5 lakh Section 80C limit.
How the NPS corpus formula works
This calculator uses the future value of an annuity due — contributions at the start of each month:
FV = C × [ (1 + i)n − 1 ] ÷ i × (1 + i)
- FV — the retirement corpus at the exit age.
- C — your fixed monthly contribution.
- i — the monthly rate of return = annual return ÷ 12 ÷ 100 (e.g. 10% → 0.008333).
- n — the number of monthly contributions = (retirement age − current age) × 12.
The trailing × (1 + i) makes this an annuity due rather than an ordinary annuity: each NPS contribution is invested at the start of the month, so it earns one extra period of growth. This is the convention ClearTax publishes, and it reproduces its worked example to the rupee. At maturity the corpus is split: the annuity portion (at least 40% here) buys the pension, and the rest is your lump sum. The estimated monthly pension is the annuity amount × annuity rate ÷ 100, divided by 12.
Example: ₹5,000 a month from age 30 to 60 at 10%
With i = 10 ÷ 12 ÷ 100 = 0.008333 and n = 360 contributions, the formula gives a corpus of ₹1,13,96,626.62 — that is ₹18,00,000.00 of your own contributions plus ₹95,96,626.62 of estimated returns. Annuitising 40% at a 6% annuity rate gives an annuity corpus of ₹45,58,650.65, a lump sum of ₹68,37,975.97, and an indicative monthly pension of about ₹22,793.25. The table below is generated by the same engine that powers the calculator above, so it can never drift from the math.
| Year | Invested | Est. returns | Corpus |
|---|---|---|---|
| 5 | ₹3,00,000.00 | ₹90,411.91 | ₹3,90,411.91 |
| 10 | ₹6,00,000.00 | ₹4,32,760.10 | ₹10,32,760.10 |
| 15 | ₹9,00,000.00 | ₹11,89,621.33 | ₹20,89,621.33 |
| 20 | ₹12,00,000.00 | ₹26,28,484.55 | ₹38,28,484.55 |
| 25 | ₹15,00,000.00 | ₹51,89,451.74 | ₹66,89,451.74 |
| 30 | ₹18,00,000.00 | ₹95,96,626.62 | ₹1,13,96,626.62 |
How the assumed return changes the projection
The expected return is an assumption, not a guarantee, and small changes swing the result a lot over three decades. Here is the same ₹5,000 monthly contribution from age 30 to 60 at different assumed rates:
| Assumed return | Corpus | Lump sum (60%) | Monthly pension |
|---|---|---|---|
| 8% p.a. | ₹75,01,475.89 | ₹45,00,885.53 | ₹15,002.95 |
| 9% p.a. | ₹92,22,370.30 | ₹55,33,422.18 | ₹18,444.74 |
| 10% p.a. | ₹1,13,96,626.62 | ₹68,37,975.97 | ₹22,793.25 |
| 12% p.a. | ₹1,76,49,568.87 | ₹1,05,89,741.32 | ₹35,299.14 |
The same contributions produce very different corpuses purely from the return assumption — which is exactly why the headline figure should be read as a projection, not a promise. Use a conservative rate.
NPS vs PPF vs EPF: how do they compare?
NPS sits alongside the Public Provident Fund (PPF) and the Employees' Provident Fund (EPF) as the main long-term retirement savings options for Indian investors. They differ significantly in risk, flexibility, and the type of exit they provide.
| Feature | NPS | EPF | PPF |
|---|---|---|---|
| Returns | Market-linked (equity + debt) | Fixed, declared annually | Government-set fixed rate |
| Risk | Moderate (equity component) | Very low | Very low |
| Lock-in | Until exit / age 60 | Until retirement / job exit | 15 years (extendable) |
| Equity exposure | Up to 75% (Active choice) | Up to 15% | None |
| Pension income | Yes — mandatory annuity portion | No | No |
| Partial withdrawal | Up to 25% of own contributions after 3 yr | Allowed under conditions | Partial from year 7 |
| Tax benefit (own contribution) | 80CCD(1) + 80CCD(1B) — old regime only | 80C up to ₹1.5 lakh | 80C up to ₹1.5 lakh |
| Employer contribution benefit | 80CCD(2) — available in both regimes | Exempt up to ₹7.5 lakh/yr | N/A (self-contribution only) |
| Who can join | Any citizen / NRI aged 18–70 | Salaried employees only | Any Indian resident |
The headline difference: NPS is the only one of the three that converts a portion of your savings into a lifelong monthly pension. PPF and EPF pay you a lump sum but provide no annuity income. NPS also allows the highest equity exposure (up to 75% under Active Choice), which drives the higher long-run return assumption most illustrations use.
NPS Tier 1 vs Tier 2
NPS has two account types. This calculator models the Tier-1 retirement account, which carries the lock-in, the tax benefits and the annuity rules. Tier 2 is an optional, liquid savings add-on.
| Feature | Tier 1 | Tier 2 |
|---|---|---|
| Purpose | Main retirement account | Voluntary savings add-on |
| Mandatory | Yes — required to join NPS | No — optional |
| Withdrawals | Restricted until exit / 60 | Anytime, no lock-in |
| Tax benefit | 80CCD(1), 80CCD(1B), 80CCD(2) | None for most subscribers |
| Annuity rule at exit | Min 40% annuitised (this tool) | Not applicable |
The annuity rule: 40% vs 20%
On normal exit at 60, the classic rule was that at least 40% of the corpus must be used to buy an annuity, leaving up to 60% as a lump sum. This version pins that 40% minimum as a conservative default (the annuity input is clamped to ≥ 40%).
PFRDA’s NPS Exit & Withdrawal (Amendment) Regulations 2025 (effective December 2025) lowered the mandatory minimum annuity from 40% to 20% (allowing up to 80% lump sum) for eligible non-government subscribers, and permit a 100% lump sum if the corpus is ₹8 lakh or less. The classic 40% minimum is retained for government-sector normal exit. If you qualify for the newer 20% rule your lump sum can be larger — but remember the tax point below.
Tax: contributions, corpus and pension
NPS tax treatment has two stages — the deductions you claim while contributing, and the treatment at exit.
On the way in — contribution deductions under Section 80CCD: the table below summarises what is available under each tax regime. Budget 2024 raised the employer 80CCD(2) ceiling from 10% to 14% of Basic+DA for all employees (not just government) under the new regime from FY 2024-25, making NPS a particularly efficient vehicle for salaried taxpayers under the new regime.
| Section | What it covers | Old regime | New regime |
|---|---|---|---|
| 80CCD(1) | Own employee contribution | Up to 10% of salary (within ₹1.5 lakh 80C ceiling) | Not available |
| 80CCD(1B) | Extra own contribution | Additional ₹50,000 over the ₹1.5 lakh 80C ceiling | Not available |
| 80CCD(2) | Employer contribution | Up to 10% of Basic+DA (14% for govt. employees) | Up to 14% of Basic+DA for all employees (from FY 2024-25) |
On the way out — exit taxation: up to 60% of the corpus is income-tax-free as a lump sum. Any lump sum above 60% — which the 2025 regulations now permit for eligible non-government subscribers — is taxable. The portion used to buy an annuity is not taxed at the time of purchase, but the monthly pension you later receive is taxed as income at your applicable slab in the year you receive it. Do not assume the entire lump sum is always tax-free. This calculator shows gross projected figures; consult a tax adviser for your specific liability.
What this calculator does not model
To keep the projection simple and transparent, this version assumes a fixed monthly contribution, a single constant expected return and a single constant annuity rate held flat for the whole horizon. It does not model the annual contribution step-up, an existing accumulated balance, partial withdrawals, deferment beyond the entered retirement age, or the specifics of a chosen annuity plan (return-of-purchase vs without, single vs joint-life). All figures are gross projections, not guaranteed payouts.
Frequently asked questions
What is the National Pension System (NPS) and who can join?+
The NPS is a voluntary, market-linked retirement savings scheme regulated by the PFRDA. Any Indian citizen (and NRIs) aged 18 to 70 can open a Tier-1 account, contribute regularly during their working years, and build a corpus that is partly paid out as a lump sum and partly converted into a lifelong pension at retirement.
How is the NPS maturity corpus calculated?+
This calculator uses the future value of a monthly annuity due: FV = C × [((1 + i)ⁿ − 1) / i] × (1 + i), where C is your monthly contribution, i is the monthly rate of return (expected annual return ÷ 12 ÷ 100) and n is the number of months until retirement, (retirement age − current age) × 12. The trailing (1 + i) reflects that each contribution is invested at the start of the month and earns one extra period of growth.
How is my monthly NPS pension estimated?+
At retirement a portion of your corpus (the annuity portion) is used to buy an annuity. The calculator estimates the annual pension as that annuity amount multiplied by your expected annuity rate, then divides by 12: monthly pension = (annuity corpus × annuity rate ÷ 100) ÷ 12. The actual pension depends on the annuity plan and provider you choose, so treat this as an indicative figure.
What are the tax benefits of NPS under 80CCD?+
Contributions to NPS Tier-1 qualify for a deduction under Section 80CCD(1) within the overall ₹1.5 lakh limit of Section 80C, plus an additional exclusive deduction of up to ₹50,000 under Section 80CCD(1B). Employer contributions are separately deductible under Section 80CCD(2). These deductions are available under the old tax regime; the new regime allows only the employer 80CCD(2) benefit. This calculator does not compute tax — consult a tax adviser for your liability.
Is the NPS lump sum tax-free?+
Only partly. Up to 60% of your total corpus can be withdrawn as a lump sum at retirement, and that 60% is income-tax-free. Any amount withdrawn above 60% of the corpus (allowed for some subscribers under the 2025 rules) is taxable. The portion used to buy an annuity is not taxed at purchase, but the monthly pension you later receive is taxed as income in the year you receive it.
Why does this calculator use a 40% minimum annuity when I have read it is now 20%?+
PFRDA’s NPS Exit & Withdrawal (Amendment) Regulations 2025 lowered the mandatory minimum annuity from 40% to 20% (allowing up to 80% lump sum) for eligible non-government subscribers, with 100% lump sum permitted if the corpus is ₹8 lakh or less. The classic 40% minimum still applies to government-sector normal exit. This version conservatively pins a 40% minimum as a safe default; if you qualify for the newer 20% rule, your lump sum can be larger, but remember only 60% of the corpus stays tax-free.
What is the difference between NPS Tier 1 and Tier 2 accounts?+
Tier 1 is the main retirement account: it is mandatory for NPS, has restricted withdrawals, and is the account that carries the 80CCD tax benefits and the annuity rules this calculator models. Tier 2 is an optional, voluntary savings account with no lock-in and free withdrawals, but it carries no tax benefit for most subscribers. This calculator projects a Tier-1 retirement corpus.
Is the NPS monthly pension taxable?+
Yes. The annuity (pension) you receive after retirement is treated as income and taxed at your applicable income-tax slab rate in the year you receive it. By contrast, the up-to-60% lump sum withdrawn at retirement is tax-free. This calculator shows gross projected figures and does not deduct any tax.
What expected return should I assume for NPS?+
NPS returns are market-linked and depend on your chosen asset mix of equity, corporate bonds and government securities. Long-term illustrations commonly assume around 8–10% per year for a balanced allocation, higher for equity-heavy and lower for debt-heavy portfolios. Use a conservative figure and treat the result as a projection, not a guarantee.
Can I retire before 60 or defer beyond 60 in NPS?+
Normal exit is at 60 (superannuation), and you can defer withdrawal and continue contributing up to age 75, which this calculator supports through the retirement-age input (60–75). Early exit before 60 is allowed after a minimum tenure but requires a larger share of the corpus to be annuitised and only a small lump sum, so the standard 60-year projection here does not apply to early exit.
Does this calculator include a contribution step-up or my existing NPS balance?+
No. This version assumes a fixed monthly contribution throughout and starts from zero, so it does not model the annual contribution increase (step-up) offered by the official NPS Trust calculator, nor any existing accumulated balance. The real corpus will be higher if you step up contributions or already hold an NPS balance.
How much will ₹5,000 a month grow to in NPS over 30 years?+
Assuming a 10% annual return compounded monthly, contributing ₹5,000 every month from age 30 to 60 builds a corpus of about ₹1.14 crore on a total investment of ₹18 lakh. With a 40% annuity at a 6% annuity rate, that gives roughly ₹68.4 lakh as a lump sum and an estimated monthly pension of about ₹22,793 — an illustration, not a guaranteed payout.
What are the NPS partial withdrawal rules after the 2025 changes?+
Under the PFRDA (Exits and Withdrawals under NPS) Amendment Regulations 2025, subscribers can withdraw up to 25% of their own contributions (excluding employer contributions) after completing three years in the scheme. Before age 60, up to four partial withdrawals are allowed, with a minimum gap between each. After age 60, withdrawals are permitted with a minimum three-year gap between them, with no cap on the number. Permitted purposes under the revised rules include: purchase or construction of a house (only if the subscriber does not already own one, allowed once), medical treatment of self, spouse, children or parents (no longer limited to a specific illness list), and repayment of loans taken against the NPS account balance. Purposes removed in 2025 include skill development and starting a new venture. Partial withdrawals up to 25% of own contributions are tax-exempt.
What is the Section 80CCD(2) benefit under the new tax regime?+
Section 80CCD(2) — the deduction for your employer's NPS contribution — is available under both the old and the new tax regime. Budget 2024 (Finance Act 2024) raised the ceiling for private-sector and other non-government employees from 10% to 14% of Basic+DA under the new regime, aligning it with the existing 14% limit for government employees. This is over and above the ₹1.5 lakh 80C ceiling, which makes it one of the few meaningful deductions still accessible to new-regime taxpayers. Note that Section 80CCD(1) (your own contribution) and 80CCD(1B) (the extra ₹50,000) are not available under the new regime — only the employer contribution deduction remains.
What is NPS Vatsalya and can this calculator estimate it?+
NPS Vatsalya is a pension scheme for minor children, launched in July 2024 under Budget 2024-25. Parents or legal guardians can open an account for a child below 18. The minimum annual contribution is ₹1,000, and on the child turning 18 the account is converted into a regular NPS Tier-1 account. Contributions are eligible for tax deduction under Section 80C. The NPS Trust website offers a dedicated NPS Vatsalya calculator. This calculator (designed for adult Tier-1 NPS) is not calibrated for the Vatsalya scheme, which has a different accumulation horizon and conversion rules at age 18. For Vatsalya projections, use the official NPS Trust tool at npstrust.org.in.
Sources
- NPS Trust (PFRDA), Government of India — official Pension Calculator and input set
- ClearTax — NPS calculator: FV = C × [((1+r)^n − 1)/r] × (1+r), 40% minimum annuity, worked example
- BankBazaar — NPS calculator: 60% maximum lump sum, remaining 40% annuitised for pension
- Protean (NSDL) — NPS Exit & Withdrawal (Amendment) Regulations 2025: minimum annuity lowered 40% → 20% for eligible subscribers
Formula and data last reviewed by the TheCalculatorVault team on 26 June 2026. Figures are for general information, not professional advice.
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