Most people underestimate what 30 years of small, consistent contributions actually adds up to. Enter your age and monthly amount. See the corpus, the lump sum you pocket, and the pension that follows.
A lot of people open an NPS account for the Rs.50,000 tax deduction and never think about it again. This NPS calculator shows you what you are actually building. Enter your age, monthly contribution, expected return, and annual salary increment. You get the total corpus at 60, the tax-free lump sum (60%), and the monthly pension your 40% annuity generates. Adjust the annuity return rate to see the pension difference between a 6% and 7% annuity offering.
NPS is one of those products that rewards patience more than intelligence. Open an account at 25 with Rs.5,000 a month and never touch it. By 60, the Rs.21 lakh you invested will likely be a corpus of Rs.1 crore or more depending on allocation and returns. That is what 35 years of compounding at 10% does. The government regulates it through PFRDA, the fund management charge is 0.09% annually (no mutual fund comes close to that), and the tax treatment is genuinely one of the best available in India. At 60, 60% of whatever you have built comes out tax-free as a lump sum. The remaining 40% converts to a monthly pension through a mandatory annuity.
Three things this calculator makes concrete that most people only guess at:
The math is compound growth on a contribution that rises each year. Here is the formula, and then a real worked example that shows what it means in practice:
Step 1: Calculate yearly corpus with annual increment
Step 2: Apply compound growth formula
Formula: FV = Σ [P × (1 + i)^n × ((1 + r)^n - 1) / r]
What the variables mean:
At retirement, the corpus splits like this:
A real example: Starting at age 30, contributing Rs.5,000 per month with a 5% annual increment, 10% expected return, and 6% annuity rate:
One thing to keep in mind: the 10% return assumption in that example is not guaranteed. NPS is market-linked. Conservative allocation (roughly 25% equity and 75% in bonds and government securities) has historically delivered 9 to 10%. Aggressive allocation (75% equity) has hit 11 to 13% over long periods but with sharper swings in individual years. A 30-year horizon absorbs that volatility well. A 10-year horizon does not.
The floor for keeping an NPS Tier I account active is Rs.1,000 per year. Below that, the account gets frozen and you pay a penalty to revive it. For individual transactions, the minimum is Rs.500. There is no ceiling on how much you put in, but the tax benefit stops at Rs.1.5 lakh under Section 80C and Rs.50,000 under the exclusive Section 80CCD(1B). Everything above Rs.2 lakh per year still goes in and earns returns. No additional deductions apply to the excess.
NPS has three layers of tax benefit. First, contributions up to Rs.1.5 lakh per year are deductible under Section 80CCD(1), which is part of the 80C umbrella. Second, and this is the reason most people open NPS, an additional Rs.50,000 under Section 80CCD(1B) is exclusively available to NPS subscribers. No other product gives you this. Third, the entire corpus compounds without annual tax during accumulation. At 60, the 60% lump sum and the 40% used to buy the annuity are both tax-free at withdrawal. The pension payments you receive after that are taxable as regular income at whatever slab applies to you in retirement. One important caveat: these personal deductions disappear under the new tax regime. Only employer contributions under Section 80CCD(2) survive the regime change.
Pulling out of NPS before 60 is expensive in terms of flexibility. A full exit is only possible after 10 years in the scheme. And when you do exit early, 80% of the corpus must go toward buying an annuity. That leaves only 20% as a lump sum, compared to the 60% you would collect at normal retirement. The 40% annuity requirement at normal retirement is restrictive enough. 80% is significantly worse. For most people, early exit makes little financial sense unless circumstances genuinely require it. Partial withdrawals are different: after 3 years in NPS, you withdraw up to 25% of your own contributions for four specific purposes: education, a child's wedding, a first home purchase, or a serious medical situation. You get a maximum of three such withdrawals over the entire tenure.
Tier I is where all the retirement planning happens. It has the lock-in until 60, the tax deductions, and the mandatory 40% annuity at maturity. Every NPS subscriber must open Tier I. Tier II is a separate optional savings account bolted on top. No lock-in, no mandatory annuity, no tax deductions for private sector employees. Government employees are the exception here. They get 80C benefits on Tier II contributions with a 3-year lock-in. For everyone else, Tier II is essentially a low-cost savings account you access freely. It is not useless, but it is not compelling enough to choose over a liquid mutual fund or a short-term FD for most investors. Focus on Tier I first.
NPS splits your money across four asset classes. Equity (E) covers large-cap company shares, capped at 75% of your total allocation. Corporate Bonds (C) covers fixed income from private companies with no upper limit. Government Securities (G) covers central and state government bonds, also uncapped. Alternatives (A) is capped at 5% and includes infrastructure and similar assets. When you pick Active allocation, you set the percentages yourself within the allowed limits. When you pick Auto or Lifecycle allocation, NPS automatically reduces your equity exposure and shifts toward bonds and government securities as you get older. Eight pension fund managers are available including SBI, HDFC, Kotak, ICICI Prudential, and UTI. Check their 5 and 10-year returns before choosing. You switch once per year without any charge.
The fund management charge in NPS is 0.09% per annum. An equity mutual fund in the regular plan category charges 1.5 to 2.5%. On a Rs.50 lakh corpus, the difference between 0.1% and 1.5% annual charges works out to Rs.70,000 per year lost to fees alone. Over 20 years of compounding, that gap is enormous. Add account maintenance of Rs.117.50 per year through the CRA and transaction charges of Rs.2.50 to Rs.8 per contribution, and your total cost is still well below 0.15% annually. This cost advantage is one of the genuinely strong reasons to use NPS for retirement savings alongside mutual funds rather than instead of them.
If you die before reaching 60, the nominee gets 100% of the corpus. The 40% annuity rule does not apply. The family is not forced to lock any portion into a monthly pension. They receive the entire accumulated amount as a lump sum, tax-free. Update your nomination when you open the account. Review it after any major life change: marriage, divorce, a new child, or the death of a previously named nominee. NPS does not replace term insurance. Life cover from NPS is incidental. Get both. The corpus NPS builds over 30 years protects your retirement. Term insurance protects your family if you do not make it to retirement.
Pick all three rather than one. EPF runs automatically for salaried employees and delivers 8.25% guaranteed with an employer match of 3.67% into your account. PPF gives 7.1% guaranteed, fully EEE tax status, and a 15-year lock-in. NPS gives market-linked returns between 9 and 12% historically and the exclusive Rs.50,000 under 80CCD(1B) that neither EPF nor PPF offer. The numbers on a practical allocation: for someone earning Rs.15 lakh a year in the old tax regime, maxing all three (EPF mandatory, PPF at Rs.1.5 lakh, NPS at Rs.50,000) generates Rs.2 lakh in annual deductions, roughly Rs.60,000 in tax saved at the 30% bracket. Invest any surplus beyond these three into equity mutual funds for the highest growth component.
At 60, 40% of your NPS corpus is handed to a PFRDA-approved insurer to purchase an annuity. The insurer then pays a fixed monthly amount for the rest of your life. Current annuity rates from empanelled insurers sit between 5.5% and 7% depending on the insurer and the type you choose. Three main types exist. Life-only pays you until death and stops there, giving the highest monthly amount. Life with return of purchase price pays a smaller monthly amount but returns the full annuity corpus to your nominee when you die. Joint life continues the pension at a reduced rate to your spouse after you pass. The monthly pension is taxable as regular income. When planning, use the pre-tax pension number in the calculator but factor in your expected retirement tax bracket when thinking about the actual cash available.
NPS allows you to defer withdrawal up to age 75. If you are still working at 60 or have other retirement income, leaving the NPS corpus untouched for another 5 to 10 years is worth considering. It keeps compounding tax-free, and annuity rates for older buyers tend to be higher because the insurer is pricing a shorter payout period. At 70, annuity rates of 7 to 8% are more common than the 6% you might get at 60. On a Rs.50 lakh annuity corpus, that 1 to 2% difference is Rs.4,000 to Rs.8,000 more per month for life. Early exit before 60 runs in the opposite direction: the 80% mandatory annuity versus the normal 40% is a large penalty. Avoid it unless there is genuinely no other option.
NPS is regulated by PFRDA, which is a government body. The subscriber's corpus is held in a separate trust independent of the pension fund manager. If the fund manager faces any financial trouble, your money is not at risk. That structural safety is real. Returns, however, are not guaranteed. NPS invests in markets. Conservative allocation (around 25% equity) has historically delivered 8 to 9% with limited year-to-year variation. Aggressive allocation (75% equity) has hit 11 to 13% over long periods but goes through years where it falls. For a 30-year horizon, that volatility in the equity component is not a problem. It is what generates the higher long-term return. If your retirement is under 10 years away, reduce equity exposure progressively. The Auto Lifecycle option does this automatically.
