Planning for retirement is one of the most important financial decisions you will make. The National Pension System (NPS) is a government-backed, market-linked retirement savings scheme that helps you build a substantial corpus during your working ye Read more 
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An NPS Calculator is a free online retirement planning tool that estimates:
The NPS Calculator combines two functions: a SIP (Systematic Investment Plan) calculator that projects corpus growth through compounding, and an annuity calculator that estimates monthly pension income based on the annuity portion of the corpus.
The National Pension System (NPS) is a voluntary, defined-contribution retirement savings scheme regulated by the Pension Fund Regulatory and Development Authority (PFRDA) and backed by the Government of India. Introduced in 2004 for government employees and extended to all Indian citizens in 2009, NPS is one of the most tax-efficient retirement investment options available today.
Key features of NPS:
The NPS Calculator is a free online tool that estimates your retirement corpus and monthly pension under the National Pension System. It uses a compound interest formula (FV = P × [(1 + r/n)^(nt) – 1] / (r/n)) to calculate how your monthly contributions grow over time at the expected rate of return. It then splits the corpus into a lump sum withdrawal (up to 60%) and annuity portion (minimum 40%), and calculates monthly pension based on your chosen annuity rate.
The minimum contribution to open an NPS Tier I account is ₹500 at the time of registration. Subsequently, a minimum of ₹500 per contribution and a minimum annual contribution of ₹1,000 is required to keep the Tier I account active. For Tier II accounts, the minimum initial contribution is ₹1,000 with a minimum of ₹250 per subsequent contribution.
At retirement (age 60), up to 60% of the accumulated NPS corpus can be withdrawn as a lump sum, which is fully tax-exempt under Section 10(12A). The remaining minimum 40% must be used to purchase an annuity from a PFRDA-registered Annuity Service Provider (ASP), which then provides monthly pension income. If the total corpus at retirement is ₹5 lakh or less, the entire amount can be withdrawn without mandatory annuity purchase.
The annuity rate is the annual return offered by the Annuity Service Provider (ASP) on the annuity purchase amount. Current rates typically range from 5% to 6.5% p.a. depending on the ASP and annuity plan type chosen. Monthly pension is calculated as: (Annuity Value × Annuity Rate) ÷ 12. For example, if ₹30 lakh is used to purchase annuity at 6% p.a., the monthly pension would be (₹30,00,000 × 6%) ÷ 12 = ₹15,000 per month.
NPS offers tax deductions under three sections: Section 80CCD(1) allows deduction up to 10% of Basic+DA (salaried) or 20% of gross income (self-employed), within the ₹1.5L 80C limit – available under old regime only. Section 80CCD(1B) provides an additional exclusive deduction of ₹50,000 over and above the ₹1.5L limit – old regime only. Section 80CCD(2) covers employer's NPS contribution up to 14% of Basic+DA – available under both old and new tax regimes. Maximum total NPS deduction under old regime can exceed ₹2L when employer contributions are included.
