Quick answer: NPS and a mutual fund SIP are not really the same product, so “which is better” depends on what you want. NPS is a low-cost retirement account that gives a tax break on the way in but locks your money till 60 and forces 40 percent of it into a pension for life. A mutual fund SIP gives you no forced pension, full liquidity, and usually a bigger corpus, but no tax deduction on your contributions. For most people building a retirement corpus today, an equity SIP wins on flexibility and size, while NPS earns its place mainly if you are in the old tax regime or your employer contributes.
Let me break down every piece the decision actually turns on: lock-in, the 60 percent tax-free rule, the compulsory annuity, the 80CCD(1B) deduction under the old vs new regime, and a corpus comparison at equal monthly contributions.
NPS vs mutual fund SIP: the side-by-side
| Feature | NPS (Tier I) | Mutual Fund SIP (equity) |
|---|---|---|
| Lock-in | Till age 60, with limited partial withdrawals | None (fully liquid; ELSS has a 3-year lock-in) |
| Equity exposure | Capped (max 75%, tapers with age) | Up to 100%, your choice |
| Cost | Very low fund management charge | Higher expense ratio, lower for direct plans |
| Tax break on contribution | Up to ₹2 lakh (80C + 80CCD(1B)), old regime only | None (only ELSS, under 80C, old regime) |
| Withdrawal at 60 | 60% lump sum tax-free, 40% must buy an annuity | 100% yours, whenever you want |
| Compulsory annuity | Yes, on 40% of the corpus | No |
| Exit tax | 60% lump sum tax-free; annuity pension taxed as income | LTCG 12.5% on gains above ₹1.25 lakh a year |
Lock-in and liquidity: the biggest practical gap
NPS Tier I is a retirement lockbox. Your money stays put until you turn 60. You can take limited partial withdrawals, up to 25 percent of your own contributions, only for specific needs like a medical emergency, a child’s education or marriage, or buying a house, and only after set gaps. That is it.
A mutual fund SIP has no such wall. If you need the money for an emergency, a job loss, or an opportunity, you can redeem in a couple of working days. That freedom cuts both ways. It is great for flexibility, but it also means you can raid your retirement money when you should not. NPS forces discipline. A SIP asks you to supply your own.
The 60% tax-free withdrawal and the 40% compulsory annuity
This is the NPS rule people misunderstand most. When you retire at 60, you can take up to 60 percent of your corpus as a lump sum, and that 60 percent is fully tax-free. Good so far. But the remaining 40 percent is not yours to take. You are required to use it to buy an annuity, which is a pension product from an insurance company.
Two things hurt here. First, annuity rates in India are modest, usually around 6 to 7 percent a year, which is close to an FD and often below inflation. Second, the annuity pension you receive is taxable as regular income every year. So the 40 percent gets parked in a low-return product and then taxed on the way out.
A mutual fund SIP has none of this. The whole corpus stays with you. You can set up your own pension using a Systematic Withdrawal Plan, keep the rest invested for growth, and control exactly how much you draw. How much is actually safe to withdraw each year in India is its own question, and we cover it in our guide to the safe withdrawal rate in India. To see how that monthly income would look, our SWP calculator lets you model it.
The 80CCD(1B) tax break, and why the new regime changed everything
NPS built its whole reputation on one line: an extra ₹50,000 deduction under Section 80CCD(1B), over and above the ₹1.5 lakh under 80C. Together that is up to ₹2 lakh of your own contributions you could deduct. For someone in the 30 percent slab, the ₹50,000 alone saved about ₹15,600 in tax every year. That was a genuinely strong reason to pick NPS.
Here is the catch that most old articles miss. That deduction lives only in the old tax regime. Under the new tax regime, which is now the default that most people fall into, the self-contribution deductions under 80CCD(1) and 80CCD(1B) are gone. You cannot claim the ₹50,000. The only NPS tax break that survives in the new regime is 80CCD(2), the deduction for your employer’s contribution, up to 14 percent of your basic salary.
So the real picture in 2026 looks like this:
- You are in the old regime: NPS still gives you the full ₹2 lakh deduction potential. The tax break is real and worth counting.
- You are in the new regime and self-employed, or your employer does not offer NPS: you get no deduction on your own NPS contributions. NPS loses most of its tax edge over a plain SIP.
- You are in the new regime and your employer contributes to NPS: the 80CCD(2) route still works and is worth using through payroll.
The takeaway is simple. NPS is not automatically the tax-smart choice anymore. It depends entirely on your regime and whether an employer is contributing. If you are chasing tax savings under the new regime, that famous NPS advantage may not apply to you at all.
Corpus comparison at equal contributions
Now the number everyone wants. Say you invest ₹10,000 a month for 25 years in each. The growth of a monthly investment is given by the standard SIP formula:
FV = P \times \frac{(1 + r)^n - 1}{r} \times (1 + r)Here P is your monthly investment, r is the monthly return, and n is the number of months. The key input is the return, and this is where the two differ. NPS caps equity and mixes in bonds, so it behaves like a hybrid fund with a lower expected return. A pure equity SIP can stay fully in equity, aiming higher. Using reasonable long-run assumptions of about 10 percent for NPS and about 12 percent for an equity SIP:
- NPS at 10 percent: roughly ₹1.34 crore after 25 years
- Equity SIP at 12 percent: roughly ₹1.90 crore after 25 years
That is a gap of about ₹56 lakh, created mostly by the equity cap on NPS. But the comparison does not end at the corpus. Look at what each one lets you actually use:
- NPS: 60 percent of ₹1.34 crore, about ₹80 lakh, comes to you tax-free. The other ₹54 lakh buys an annuity paying roughly ₹29,000 a month, taxable.
- Equity SIP: the full ₹1.90 crore is yours. You pay 12.5 percent tax only on the gains you actually redeem above ₹1.25 lakh in a year, and you keep full control over timing.
Remember these are illustrations, not promises. Returns are market-linked and never guaranteed, and real-life returns rarely match a clean average, which we explain in why SIP returns look different in real life vs calculator results. Run your own figures in our SIP calculator before you commit to either option.
So which should you pick?
There is no single winner, but here is how I would decide.
- Pick a mutual fund SIP if you want the biggest corpus, full liquidity, no forced annuity, and control over your retirement income. This suits most people building a corpus from scratch, especially anyone in the new tax regime who gets no NPS deduction anyway.
- Pick NPS if you are in the old regime and want that ₹2 lakh deduction, or your employer contributes under 80CCD(2), or you know you lack the discipline to leave a liquid corpus untouched. The forced lock-in and low cost are genuine strengths for the right person.
- Or use both. Many people run an equity SIP as the main engine and add a smaller NPS contribution for the tax break and the enforced discipline. You do not have to choose only one.
Whatever you pick, set the target in inflation-adjusted terms, because ₹1 crore two decades from now will buy far less than it does today, and plan the drawdown properly. Our retirement planning calculator helps you size the corpus you actually need.
Tax rules here are current for FY 2025-26 and FY 2026-27, but they do change, so confirm the latest position before you invest.
It depends. A mutual fund SIP usually builds a bigger corpus, stays fully liquid, and has no forced annuity. NPS gives a tax deduction on contributions in the old regime, has very low cost, and enforces discipline, but locks your money till 60 and forces 40 percent into an annuity.
No. The extra ₹50,000 under Section 80CCD(1B), and the 80CCD(1) self-contribution deduction, are available only in the old tax regime. Under the default new regime, the only surviving NPS deduction is 80CCD(2) for your employer’s contribution, up to 14 percent of basic salary.
Up to 60 percent of your NPS corpus can be withdrawn as a lump sum at 60, and that portion is fully tax-free. The remaining 40 percent must be used to buy an annuity, and the pension you receive from it is taxed as regular income each year.
NPS caps equity exposure at around 75 percent and mixes in bonds, which lowers its expected return. An equity mutual fund SIP can stay fully in equity. Over 25 years at 10 percent versus 12 percent, that gap can mean roughly ₹1.34 crore for NPS versus ₹1.90 crore for the SIP on a ₹10,000 monthly investment.
Equity mutual funds are taxed at 12.5 percent on long-term capital gains above ₹1.25 lakh in a financial year, for units held over 12 months. Gains on units held 12 months or less are taxed at 20 percent. You only pay tax on the gains you actually redeem, not the whole corpus.
Yes, and many people do. A common approach is to run an equity SIP as the main growth engine for flexibility and size, and add a smaller NPS contribution for the tax deduction in the old regime or for the forced retirement discipline.
