NPS: National Pension System Explained

What is NPS?

The National Pension System (NPS) is a government-run retirement scheme regulated by the Pension Fund Regulatory and Development Authority (PFRDA). Tier 1 NPS accounts are designed for retirement savings with tax benefits; contributions are locked until age 60.

NPS Rules in One Page

Contribution window: 18-70 years old, but you can only contribute until 60 for Tier 1
Minimum contribution: ₹500 to open; ₹1,000/year to keep active
Tax benefits:
- Up to ₹1.5 lakh/year under Section 80C
- Additional ₹50,000/year exclusively for NPS under Section 80CCD(1B)
- Up to 14% of basic+DA under 80CCD(2) for government / corporate NPS (no cap)
Asset allocation: you pick from equity (max 75% until age 50), corporate debt, government bonds, alternatives
Withdrawal at 60:
- 40% mandatory annuity — buys a monthly pension for life
- Up to 60% tax-free lump sum
Annuity rates are set by insurance companies (currently 6-7% depending on plan)

The NPS Formula

Accumulation phase is a standard SIP compounding:

Corpus at 60 = Monthly Contribution × [((1+i)^n − 1) / i] × (1+i)

Where:

i = monthly return (annual expected return ÷ 12 ÷ 100)
n = months of contribution = (60 − current age) × 12

Withdrawal split:

Lump sum = 60% of corpus
Annuity purchase = 40% of corpus
Monthly pension ≈ (Annuity Purchase × Annuity Rate %) / 12

Worked Example

Age 30, contributing ₹5,000/month, expecting 10% annual return:

30 years × 12 = 360 contributions
Corpus at 60: ~₹1.14 Cr
Lump sum (60%): ~₹68.4 lakh (tax-free)
Annuity purchase (40%): ~₹45.6 lakh
Monthly pension at 6% annuity: ~₹22,800/month for life

That's ₹5k/month in savings producing ₹22.8k/month in pension — a 4.5× flow reversal.

NPS vs Other Retirement Options

| | NPS Tier 1 | EPF | PPF | Mutual Fund | |---|---|---|---|---| | Lock-in | Till 60 | Job change | 15 years | Open | | Max tax break | ₹2L/year | Salary-linked | ₹1.5L/year | — | | Market-linked | Yes | No (8% admin rate) | No (7.1% admin rate) | Yes | | Withdrawal rules | 60/40 split | Lump sum | Lump sum at maturity | Anytime |

When NPS Wins vs When It Doesn't

NPS wins when:

You maximize the extra ₹50k 80CCD(1B) tax break
You want forced long-term savings
You value market-linked returns over fixed rates

NPS is weaker when:

You need flexibility — the 40% annuity is non-negotiable
Annuity rates are low at your retirement (less pension for the same corpus)
You already max out EPF and don't need the extra tax break

Use our NPS Calculator to project your corpus and monthly pension. For comparing with mutual funds, see the SIP Calculator.