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NPS calculator
What your National Pension System contributions could add up to, how the corpus splits between lump sum and annuity under the December 2025 exit rules, and the pension that buys — in today's rupees too.
Educational tool with simplified assumptions. Returns are not guaranteed; actual results will differ. This is not investment, tax or legal advice.
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How it works
The maths, in plain English.
The corpus. Each monthly contribution is assumed to go in at the start of the month and compound at one-twelfth of the yearly return; the contribution steps up once a year; today's balance grows at the same return. It is the same SIP convention as our retirement calculator.
Exit rules since December 2025. Under the PFRDA (Exits and Withdrawals under the National Pension System) (Amendment) Regulations, 2025, a non-government subscriber making a normal exit — at 60, on superannuation, or after 15 years in NPS — must use at least 20% of the corpus to buy an annuity and may take up to 80% as a lump sum or in phased withdrawals (earlier 40% and 60%). A corpus of ₹8 lakh or less can be withdrawn in full. Between ₹8 lakh and ₹12 lakh there is a further choice: up to ₹6 lakh as a lump sum and the rest through systematic unit redemption over at least six years, with no annuity. Government-sector subscribers still need a 40% annuity above ₹12 lakh. Subscribers may stay invested until 85. The calculator applies the simple version: no compulsory annuity up to ₹8 lakh, then 20% or 40%.
The pension. Annuity purchase amount × annuity rate ÷ 12, for a plain annuity without return of purchase price. Choosing a joint-life or return-of-purchase-price option lowers the rate.
Tax. Income-tax law exempts a lump sum of up to 60% of the corpus at exit (section 10(12A) of the 1961 Act, carried into the 2025 Act). [VERIFY] As of reports to mid-2026 the tax law had not been amended to match the new 80% limit, so the part of the lump sum above 60% is reported as taxable at slab rates; confirm the current position before relying on it. The amount used to buy the annuity is not taxed; the pension is taxed as income each year. Deductions for contributions are outside this calculator.
Assumptions. Constant return, annuity rate and inflation; no partial withdrawals; charges ignored; exits before 60 with under 15 years in NPS follow premature-exit rules (at least 80% to an annuity above a ₹5 lakh corpus) that are not modelled.
Sources (checked 19 Sep 2026). Protean (NPS central recordkeeping agency), NPS withdrawal rules, Dec 2025 · Upstox, PFRDA exit regulations notified, Dec 2025 · Business Today, 17 Dec 2025 · 1 Finance, taxation of the 80% lump sum, 25 May 2026
Questions
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