NPS Calculator

1 Finance NPS Calculator is an online retirement planning tool that estimates the future value of your NPS contributions.

These contributions go into the National Pension Scheme (NPS), a low-cost, retirement-focused scheme implemented by the Central Government and regulated by the Pension Fund Regulatory and Development Authority (PFRDA). You contribute during your working years, and the accumulated corpus can be withdrawn at exit through a combination of lump sum and annuity-based monthly pension income.

For NPS subscribers, estimating the total corpus alone can be misleading, because the lump sum withdrawal and the annuity portion are taxed differently. Hence, 1 Finance NPS calculator accounts for both components to show the amount you may receive from your retirement savings.

To use 1 Finance NPS calculator, you must input the following details:

• Your current age, which determines the investment tenure and compounding window
• Investment period in years, which sets the tenure for growth and final corpus calculation
• NPS contribution amount, entered as a monthly or yearly figure
• Expected return on NPS investment, set through a slider between 5% and 15%
• Your current tax slab, which determines tax savings you can avail
• Expected return on other investments, covering equity funds, debt funds, PPF, and others to compare against NPS returns

With these inputs, this national pension scheme calculator first estimates your gross retirement corpus. It then applies the NPS withdrawal rules to determine the portion available as a lump sum withdrawal and the portion that must be used to purchase an annuity, based on the latest PFRDA guidelines applicable as of December 2025.

1 Finance NPS calculator is available online for all NPS subscribers.

• Private sector and corporate-sector employees under the All Citizen Model or NPS Corporate Sector Model
• Self-employed professionals, like freelancers and business owners
• Anyone evaluating National Pension Scheme against other retirement options

Your monthly or yearly NPS contribution is the first input. The calculator projects this amount forward to your retirement age, growing at the expected return rate you select. If you start contributing earlier, it compounds for a longer time, making your current age and investment period as decisive as the amount itself.

NPS lets you vary contributions across years, so the calculator's projection is a baseline rather than a forecast. Testing the calculator with different contribution levels shows how much the projected corpus moves with each rupee added.

Once the projected corpus is calculated, the next step is to assess whether your current NPS contribution can support your retirement needs. If the projected lump sum or monthly annuity income falls short of your target, you can increase your NPS contribution and recalculate the outcome. In this way, the NPS calculator is useful not only for estimating your retirement corpus, but also for identifying the contribution level needed to move closer to your target.

NPS is market-linked because your contributions are invested in market-based assets such as equity, corporate bonds, and government securities, depending on your chosen asset allocation. The value of these investments changes with market conditions, which in turn affects the returns earned on your NPS contributions and the corpus accumulated over time.

The return entered in this national pension scheme calculator is therefore an assumed rate for projection, and not a guaranteed income. Actual returns can vary over the investment period based on the assets you hold and their performance.

Given this sensitivity, the return rate deserves more careful selection. Run the calculator at two or three different return rates, within the given NPS band of 8% to 13%, to see how sensitive your projected corpus is to the assumption. You can use the lower end as the baseline for planning, since higher rates require sustained equity outperformance for longer periods.

The NPS withdrawal rules are governed by the PFRDA (Exits and Withdrawals under the NPS) Regulations, 2015, as amended in December 2025. The amount that can be withdrawn as a lump sum and the portion that must be used for an annuity depend on the subscriber category, the type of exit and the accumulated pension. The current framework also allows certain withdrawals through systematic lump-sum withdrawal or systematic unit redemption.

NPS withdrawal rules for non-government employees

NPS withdrawal rules for central government employees

In NPS, the term ‘pension’ refers to the regular income you receive from the annuity purchased with a portion of your accumulated corpus.

To calculate NPS pension, 1 Finance NPS calculator first estimates the portion of the corpus used to buy an annuity. It then applies the annuity rate to this amount to estimate the annual pension and converts that figure into a monthly amount, using the monthly NPS pension formula:

Monthly pension = [Corpus used to purchase an annuity × Annuity rate] / 12

For example, if ₹20 lakh is used to purchase an annuity and the assumed annuity rate is 6% p.a., the estimated annual income would be ₹1.2 lakh. This gives a monthly NPS pension of ₹10,000 before tax.

PFRDA doesn’t set or fix a single annuity rate in NPS. Each empanelled annuity service provider sets its own rate based on the interest-rate environment at the time you retire. The rate applicable when you purchase the annuity is then locked in for the annuity, so changes in interest rates after the purchase don’t alter the rate used to determine your pension.

Across providers, the rate typically ranges between 5% and 7% p.a. 1 Finance NPS calculator uses 6.5% as the default, which sits in the upper half of this range. This means the final annuity rate and the actual monthly pension at retirement may differ from the calculator’s estimate.

NPS has two account tiers, Tier I and Tier II, with different withdrawal features and tax treatment. Since Tier I is the account used for retirement savings and is subject to the NPS exit and withdrawal rules, its contributions and withdrawals have tax implications that can affect your post-tax retirement corpus.

Tier I contributions can qualify for tax benefits under the Income Tax Act, 2025, subject to the applicable tax regime and conditions. Tier II contributions don’t qualify for the same tax benefits, as this account is designed to offer liquidity, encouraging withdrawal flexibility without mandatory retirement restrictions.

NPS tax benefits on Tier I contribution

NPS tax benefits on withdrawals

1. Lump sum

Under the Income Tax Act, 2025, up to 60% of the accumulated NPS corpus withdrawn at eligible exit is tax-free.

Under the revised PFRDA rules, eligible non-government subscribers may withdraw up to 80% of their NPS corpus as a lump sum at normal exit in specified cases. However, the income-tax exemption is limited to 60% of the corpus. The tax treatment of any amount withdrawn beyond the exempt 60% depends on the applicable provisions of the Income Tax Act.

2. Annuity income

The amount used to purchase an annuity is exempt from tax at the time of purchase, subject to the conditions under Section 124 of the Income Tax Act, 2025. The pension income received from the annuity is taxable in the year of receipt at the applicable tax rate.

3. Partial withdrawals from NPS account

The amount withdrawn up to 25% of the subscriber’s own NPS contributions is tax-exempt, subject to the conditions prescribed under the NPS rules.

The following example assumes a 30% tax slab for both NPS and equity funds.

In NPS, an eligible Tier I contribution can be deducted from taxable income, so the full ₹10,000 enters the account in a tax-efficient way. This can materially improve your final retirement corpus over a 30-year period. You will see the effect more prominently when we compare it against equity funds.

In an equity fund (direct plan), you invest ₹10,000 from post-tax income. Since no deduction is available, you still pay ₹3,000 as tax separately at a 30% slab. So the full ₹10,000 goes into the fund, but this tax outgo reduces your net investable cash flow to ₹7,000, which is why you will see we have used ₹7,000 as a net monthly contribution. When you compare equity funds with NPS, you end up with less money left to save in other investment options.

NPS vs equity funds: Investment assumptions

NPS vs equity funds: Withdrawals and tax calculation at retirement

NPS gives you a head start because your eligible contribution enters the account in full, without any immediate tax outgo at the time of investment. That early tax efficiency, combined with the scheme’s low expense ratio of around 0.05% to 0.11%, helps more of your money stay invested for the long term. By comparison, equity funds typically carry higher expense ratios of about 0.5% to 1.5%, which can also affect the final outcome over time.

This NPS calculator is intended to provide an indicative estimate of your NPS returns and retirement savings. It is for informational purposes only and should not be considered financial or tax advice. The actual returns and tax benefits may vary depending on your contributions, investment performance, and applicable tax rules. Use the results as a general guide and consult a Qualified Financial Advisor for advice suited to your financial goals.