NPS Calculator: Corpus, Annuity and 80CCD Deductions
An NPS calculator projects the corpus your monthly contributions will build by the time you exit, then splits it between the lump sum you can withdraw and the annuity you are required to buy. The corpus is entirely market linked, so the return you assume is an input rather than a promise.
The deduction position changed materially with the arrival of the new tax regime as the default. Self-funded contributions under 80CCD(1) and the additional ₹50,000 under 80CCD(1B), now Section 124(3) of the Income-tax Act, 2025, are available only on the old regime. The employer contribution under 80CCD(2) is the exception: it survives on the new regime at 14% of salary for all employees, including private sector employees, which makes it the most valuable salary structuring lever left to a new regime taxpayer.
The exit rules were loosened in December 2025. Under the PFRDA amendment regulations, a non-government subscriber with a corpus above ₹12 lakh may take up to 80% as a lump sum and annuitise only 20%, against the earlier 60:40 split. The tax law has not followed, so the exemption remains capped at 60% of the corpus and the extra slice is taxable.
NPS Calculator
Corpus at exit
₹1,32,68,334
₹1.33 crore from ₹30,00,000 contributed over 25 years
- Contribution period300 monthly contributions
- 25 years
- Total contributed
- ₹30,00,000
- Corpus at exit₹1.33 crore at 10% a year, compounded monthly
- ₹1,32,68,334
- Growth on contributions77.39% of the corpus
- ₹1,02,68,334
- Compulsory annuityAt least 20% for a non-government subscriber above ₹12 lakh
- ₹26,53,667
- Lump sum withdrawnUp to 80% of the corpus
- ₹1,06,14,667
- Estimated monthly pension₹26,53,667 annuitised at 6%
- ₹13,268
- Exempt part of the lump sumExemption stops at 60% of the corpus, ₹79,61,000
- ₹79,61,000
- Taxable part of the lump sum
- ₹26,53,667
- Withdrawal is exempt up to 60% of the corpus. PFRDA now allows a non-government subscriber above ₹12 lakh to take 80% as a lump sum, but the tax law was not raised to match, so the slice between 60% and 80% is taxed at slab rates.
- Exit bands for a non-government subscriber: up to ₹8 lakh can be withdrawn in full, ₹8 lakh to ₹12 lakh allows a lump sum of up to ₹6 lakh, and above ₹12 lakh at least 20% must buy an annuity. Government subscribers stay on the 60:40 split.
- The annuity purchase itself is not taxed. The pension it pays is taxed each year as income.
- Under the new regime only the employer contribution under 80CCD(2) survives, at 14% of salary for all employees. Your own 80CCD(1) and the additional ₹50,000 under 80CCD(1B), now Section 124(3) of the Income-tax Act, 2025, need the old regime.
- A level monthly contribution understates most real outcomes, since contributions usually rise with salary. Treat this as a floor rather than a forecast.
The formula
Corpus = Monthly contribution x [((1 + r) ^ n - 1) / r], where r is the monthly return and n the number of contributions
- r
- Expected annual return divided by 12. NPS returns are market linked and vary with your equity, corporate debt and government securities mix.
- n
- Number of monthly contributions between joining and exit, normally up to age 60 though you may stay invested longer.
- Annuity portion
- The part of the corpus that must buy an annuity: at least 20% for a non-government subscriber with a corpus above ₹12 lakh, and 40% for a government subscriber.
- Exempt lump sum
- Withdrawal is exempt up to 60% of the corpus under the provision carried forward from Section 10(12A) of the 1961 Act.
A level monthly contribution understates most real outcomes, since contributions usually rise with salary; treat the projection as a floor rather than a forecast.
How to calculate it
- 1
Choose the right account
Tier I is the retirement account: it is locked in, it carries the tax deductions, and it is the one this calculation applies to. Tier II is a voluntary open-ended account with no lock-in and no deduction for private sector subscribers.
- 2
Set the contribution and horizon
Enter the monthly amount and the years to age 60. Because the corpus compounds, the early years carry disproportionate weight, and a five-year delay in starting costs far more than a modest shortfall in the monthly figure.
- 3
Assume a return honestly
Pick a rate consistent with your asset allocation rather than the best year on record, and run a lower case alongside it. Nothing in NPS guarantees a return.
- 4
Split the corpus at exit
Apply the annuity minimum to find the compulsory annuity, and treat the balance as the lump sum. A larger lump sum raises the taxable slice, because the exemption stops at 60% of the corpus.
- 5
Claim the right deductions each year
On the old regime, claim 80CCD(1) within the ₹1,50,000 ceiling and 80CCD(1B) for up to ₹50,000 more. On the new regime, only the employer contribution under 80CCD(2) is deductible, so ask payroll to route part of your CTC through it.
NPS deduction limits for FY 2026-27
| Deduction | Limit | Old regime | New regime |
|---|---|---|---|
| 80CCD(1), own contribution | Within the ₹1,50,000 Section 80C ceiling | Available | Not available |
| 80CCD(1B), additional contribution | ₹50,000, over and above the ₹1,50,000 ceiling | Available | Not available |
| 80CCD(2), employer contribution | 14% of salary on the new regime; 10% for non-government employers on the old regime | Available | Available |
| NPS Vatsalya, minor children | Within the same ₹50,000 ceiling, for up to two minor children | Available | Not available |
Worked example
- Monthly contribution to Tier I
- ₹10,000
- Years to age 60
- 25 years
- Assumed annual return
- 10%
- Subscriber type
- Non-government
- Total contributed = ₹10,000 x 300 months = ₹30,00,000
- Corpus at 10% a year compounded monthly = about ₹1,32,68,000
- Minimum annuity at 20% of corpus = about ₹26,53,600
- Lump sum at the maximum 80% = about ₹1,06,14,400
- Exemption is capped at 60% of the corpus = about ₹79,60,800
Corpus about ₹1.33 crore. Roughly ₹79,60,800 of the lump sum is exempt and the remaining ₹26,53,600 of the lump sum is taxable at slab rates.
Frequently asked questions
Sources
Rates and rules on this page come from the following. This is a working aid, not professional advice: confirm anything material with your Chartered Accountant before you act on it.
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Aalekh runs this calculation on your actual client data, pulls the underlying ledgers straight from Tally, and carries the result through to the financial statements and the return.
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