NPS Calculator
Estimate National Pension System corpus, lump sum withdrawal, annuity purchase, and monthly pension.
Last updated: May 7, 2026
Enter Details
Investment style
NPS timeline
Invest from age 30 to 60. Pension starts at 60.
Contribution period: 30 years
Ten Thousand rupees
One Lakh rupees
Annual contribution increase
Important assumptions
Long-term NPS projections are highly sensitive to return, inflation, annuity rate, and contribution increase assumptions.
Tax benefit note
NPS may qualify for tax benefits under Section 80CCD(1), 80CCD(1B), and 80CCD(2), subject to the applicable tax regime and prevailing rules.
Estimated monthly pension
₹45,210
Estimated pension may replace around 45% of your current monthly income. In today's value, it may feel like ₹7,871.
Retirement income readiness
Moderate pension readiness
Pension may replace around 45% of your current monthly income. In today's value, it may feel like ₹7,871.
Projection confidence: Moderate
Retirement adequacy meter
Strong
75/100
Benchmarked against a 60% income replacement target.
Suggested contribution
₹16,589/month
Indicative contribution to target ₹75,000/month pension under the current assumptions.
NPS Insight
Up to 60% of the NPS corpus can currently be withdrawn as a lump sum at normal exit. Actual annuity rates at retirement may differ from today's assumptions.
Additional details
Scenario summary and exports
Review the current inputs and result breakdown, then export the scenario for reference.
NPS corpus growth timeline
Shows how contributions and investment growth build the projected NPS corpus by exit age.
Pension inflation impact
₹45,210 monthly pension at exit may feel like ₹7,871in today's purchasing power.
Equivalent purchasing power in today's value.
Corpus split visualization
Lump sum withdrawal
60% · ₹1,35,62,928
Corpus used for pension
40% · ₹90,41,952
What happens at retirement?
Total corpus
₹2,26,04,879
Tax-free lump sum
₹1,35,62,928
Annuity investment
₹90,41,952
Monthly pension
₹45,210
Annuity purchase generally provides pension income but limits liquidity compared with lump sum withdrawal. Pension amount depends on future annuity rates, which may be different from the rate assumed here.
Scenario comparison
Compare how return and annuity assumptions can change the final corpus and monthly pension.
Conservative
₹24,839/mo
Corpus ₹1,49,03,594
Return 8%, annuity 5%
+0% pension vs conservative
Confidence: High
Moderate
₹45,210/mo
Corpus ₹2,26,04,879
Return 10%, annuity 6%
+82% pension vs conservative
Confidence: Moderate
Aggressive
₹81,549/mo
Corpus ₹3,49,49,641
Return 12%, annuity 7%
+228% pension vs conservative
Confidence: Lower
Assumption sensitivity
At an 8% NPS return assumption, the estimated pension is around 34% lower than this scenario. Small return changes can create large retirement income differences over long periods.
Tax efficiency insight
NPS contributions may qualify for additional tax benefits under Section 80CCD(1B), subject to the applicable tax regime and prevailing rules.
Lifetime pension estimate
Over 25 years, the projected monthly pension could add up to around ₹1,35,62,928, before taxes and annuity policy terms.
Explore more
Related calculators
Pension planning gyan
Basics
Pension planning gyan
Understand how NPS investments may grow into a long-term retirement corpus
Estimate National Pension System corpus, lump sum withdrawal, annuity purchase, and monthly pension. An NPS calculator helps estimate the potential retirement corpus, lump sum withdrawal, and pension income based on contribution amount, expected returns, retirement age, and annuity assumptions.
Government-regulated retirement scheme
NPS is a government-regulated long-term retirement savings scheme in India designed to encourage disciplined retirement investing over multiple decades.
Market-linked long-term growth
NPS investments are allocated across equity, corporate debt, government securities, and other approved assets depending on the selected investment option and allocation strategy.
Compounding over long investment periods
Starting contributions early may significantly improve the retirement corpus because compounding works more effectively across longer investment durations.
Retirement corpus and pension planning
At retirement, a portion of the NPS corpus is generally allocated toward annuity purchase, while the remaining eligible amount may be withdrawn as a lump sum under prevailing regulations.
NPS return projections are not guaranteed because investments are market-linked. Actual retirement outcomes may vary depending on market performance, inflation, annuity rates, taxation, asset allocation, and future regulatory changes.
NPS Insight
In long-term retirement investing, consistency usually matters more than timing. Even moderate contributions made regularly over long periods may grow substantially through compounding.
Formula
How NPS maturity value and pension are calculated
An NPS calculator estimates the potential retirement corpus by projecting regular contributions over the investment period using an expected annual return. It then separates the final corpus into lump sum withdrawal and annuity purchase portions based on the selected annuity percentage.
Core NPS calculation formulas
NPS corpus = Contribution × (((1 + r)^n − 1) / r) × (1 + r)
Annuity amount = NPS corpus × Annuity percentage
Lump sum withdrawal = NPS corpus − Annuity amount
Estimated annual pension = Annuity amount × Annuity return rate
Step-by-step calculation process
- Step 1: Identify the contribution amount
Start with the regular NPS contribution amount. Depending on the calculator design, this may be a monthly or yearly contribution.
Contribution = Regular NPS investment amount
- Step 2: Calculate investment duration
The investment duration is the number of years from the current age to the selected retirement age. A longer duration gives contributions more time to compound.
Investment years = Retirement age − Current age
- Step 3: Convert return rate into periodic return
If contributions are made monthly, the expected annual return is converted into a monthly rate. If contributions are yearly, the annual return rate may be used directly.
Monthly return rate = Annual return rate ÷ 12 ÷ 100
Number of months = Investment years × 12
- Step 4: Estimate NPS corpus at retirement
The calculator applies the future value formula for regular contributions to estimate the accumulated NPS corpus at retirement.
NPS corpus = Contribution × (((1 + r)^n − 1) / r) × (1 + r)
Here, r is the periodic return rate and n is the total number of contribution periods.
- Step 5: Calculate total contribution and estimated gains
Total contribution = Contribution × Number of periods
Estimated gains = NPS corpus − Total contribution
These values show how much of the retirement corpus comes from your own contributions and how much may come from long-term investment growth.
- Step 6: Split corpus between lump sum and annuity
At retirement, NPS rules generally require a portion of the corpus to be used for purchasing an annuity. The remaining corpus may be withdrawn as a lump sum, subject to prevailing regulations.
Annuity amount = NPS corpus × Annuity percentage
Lump sum withdrawal = NPS corpus − Annuity amount
- Step 7: Estimate annual and monthly pension
The annuity amount is used to estimate potential pension income based on the assumed annuity return rate.
Estimated annual pension = Annuity amount × Annuity return rate
Estimated monthly pension = Estimated annual pension ÷ 12
NPS Insight
NPS projections are highly sensitive to investment duration, contribution amount, expected return, and annuity assumptions. Since both market returns and annuity rates can change over time, it is generally better to review NPS retirement projections periodically.
Example
Real World NPS Calculation Example
Suppose a 30-year-old investor starts contributing regularly to NPS and wants to estimate the retirement corpus, lump sum withdrawal, and possible monthly pension at age 60.
- Current age: 30 years
- Retirement age: 60 years
- Monthly NPS contribution: ₹10,000
- Expected annual return before retirement: 10%
- Annuity allocation at retirement: 40%
- Expected annuity return: 6% per year
Step-by-step calculation
Step 1: Identify the monthly contribution
Contribution = ₹10,000 per month
Step 2: Calculate investment duration
Investment years = Retirement age − Current age
Investment years = 60 − 30 = 30 years
Step 3: Convert annual return into monthly return
Monthly return rate = Annual return ÷ 12 ÷ 100
Monthly return rate = 10 ÷ 12 ÷ 100 = 0.008333
Number of months = 30 × 12 = 360 months
Step 4: Estimate NPS corpus at retirement
NPS corpus = Contribution × (((1 + r)^n − 1) / r) × (1 + r)
NPS corpus = 10,000 × (((1 + 0.008333)^360 − 1) / 0.008333) × (1 + 0.008333)
NPS corpus ≈ ₹2,28,00,000
Step 5: Calculate total contribution and estimated gains
Total contribution = ₹10,000 × 360 = ₹36,00,000
Estimated gains = ₹2,28,00,000 − ₹36,00,000
Estimated gains ≈ ₹1,92,00,000
Step 6: Split corpus between annuity and lump sum withdrawal
Annuity amount = NPS corpus × 40%
Annuity amount ≈ ₹2,28,00,000 × 40% = ₹91,20,000
Lump sum withdrawal = ₹2,28,00,000 − ₹91,20,000
Lump sum withdrawal ≈ ₹1,36,80,000
Step 7: Estimate annual and monthly pension
Annual pension = Annuity amount × Annuity return rate
Annual pension ≈ ₹91,20,000 × 6% = ₹5,47,200
Monthly pension = ₹5,47,200 ÷ 12
Monthly pension ≈ ₹45,600
Example Result
A monthly NPS contribution of ₹10,000 from age 30 to 60 at an assumed 10% annual return may grow to approximately ₹2.28 crore.
Actual NPS values may vary depending on market performance, asset allocation, fund manager returns, annuity rates, withdrawal rules, taxation, and future regulatory changes.
Tips
Practical NPS investment planning tips
Start NPS contributions early
Starting NPS contributions early gives compounding more time to work and may significantly increase the retirement corpus without requiring very large monthly investments later.
Use realistic return assumptions
NPS returns are market-linked and depend on asset allocation and fund performance. Use moderate return assumptions instead of highly optimistic projections for more reliable retirement planning.
Review asset allocation periodically
NPS investments may include equity, corporate debt, government securities, and alternative assets. Reviewing allocation periodically helps keep the portfolio aligned with age, risk tolerance, and retirement timeline.
Plan for the annuity requirement
At retirement, a portion of the NPS corpus generally needs to be used for annuity purchase. Consider both lump sum withdrawal and estimated pension income while planning retirement cash flow.
Increase contributions with income growth
Increasing NPS contributions gradually as income rises can help build a larger retirement corpus without creating sudden pressure on monthly cash flow.
Do not invest only for tax benefits
NPS may offer tax benefits under prevailing rules, but it should primarily fit your long-term retirement plan, liquidity needs, risk profile, and overall asset allocation.
Account for inflation after retirement
Retirement expenses may rise over time due to inflation. While NPS can support pension income, investors should also plan for rising lifestyle and healthcare costs.
Review pension assumptions carefully
Estimated pension depends on annuity rates available at retirement. Since annuity rates can change, it is better to use conservative assumptions when projecting post-retirement income.
Common mistakes
Common NPS planning mistakes to avoid
Ignoring Inflation Impact
One of the most common mistakes in retirement planning is underestimating inflation. Future living expenses, healthcare costs, and retirement lifestyle requirements may become substantially more expensive over long periods, which can significantly increase the retirement corpus needed.
Starting Retirement Planning Too Late
Delaying NPS investments reduces the available compounding period and may require much higher contributions later to achieve the same retirement corpus target.
Assuming Guaranteed Returns
NPS investments are market-linked and returns are not guaranteed. Assuming consistently high returns over long periods can create unrealistic retirement projections and financial expectations.
Ignoring the Annuity Requirement
At retirement, a portion of the NPS corpus generally needs to be used for purchasing an annuity. Focusing only on the total corpus without understanding the annuity allocation may lead to unrealistic expectations about lump sum withdrawal availability.
Depending Only on NPS for Retirement
While NPS can be an important retirement planning tool, relying entirely on one investment product may increase long-term financial risk. Diversification across retirement accounts, equity investments, debt instruments, and emergency reserves is generally important.
NPS Alert
NPS calculations are long-term projections based on assumptions for returns, annuity rates, inflation, and retirement age. Actual retirement outcomes may vary depending on market conditions, future regulations, taxation, healthcare costs, and economic changes over time.
FAQ
Try another scenario
Adjust the assumptions to see how the result changes.