Retirement might seem years away, but deciding how much to save each month can still be confusing. With the National Pension System (NPS), you can contribute an amount that suits your budget. An NPS calculator then gives you an idea of how those savings might grow over time.
What the Calculator Does
Think of an NPS calculator as a quick peek at your retirement. It tells you roughly how big your savings pot could grow. You type in your age, the age you plan to retire, your monthly amount and the return you expect. You also say how much of the pot goes into an annuity. It only shows what happens if your guesses turn out right.
How Contribution Size Changes the Corpus
How much you put into NPS each month is largely up to you. Take someone who begins investing at 30 and plans to retire at 60. Let’s assume their savings earn 10% a year, and 40% of the final corpus goes towards an annuity paying 6% annually. These figures are just estimates, not promises. The minimum amount needed for an annuity depends on the type of NPS subscriber and the exit rules that apply.
| Monthly contribution | Estimated corpus | Estimated monthly pension |
| ₹5,000 | ₹1.13 crore | ₹22,600 |
| ₹10,000 | ₹2.26 crore | ₹45,200 |
| ₹15,000 | ₹3.39 crore | ₹67,800 |
| ₹20,000 | ₹4.52 crore | ₹90,400 |
Why Time Matters as Much as Amount
Now try the same ₹10,000 plan, but start at 40 instead of 30. You’ve lost ten years of compounding, and that hurts. So a small amount started early often beats a bigger amount started late.
That’s why it helps to change just one thing at a time. Change the contribution first. Then change the retirement age. You’ll soon see which one matters more for you.
Using the Calculator to Compare Scenarios
A good way to plan is to try three versions of your plan on an NPS calculator.
- A comfortable amount. Something you can invest in without any stress.
- A stretch amount. Maybe 20% more, paid for by trimming some spending.
- A step-up plan. Start small, then raise the amount every year as your income grows.
Even a 5% to 10% step-up can lift your final pot by a fair bit. Test the returns too. Try 8%, 10% and 12%.
Planning According to Your Financial Capacity
Under the old tax regime, your NPS contributions may qualify for deductions under Section 80CCD(1), along with an additional deduction of up to ₹50,000 under Section 80CCD(1B). Employer contributions may also qualify under Section 80CCD(2), subject to applicable limits under both tax regimes.
Under the revised NPS regulations, non-government subscribers can generally withdraw up to 80% of their retirement corpus as a lump sum, with at least 20% used to purchase an annuity. Government subscribers generally follow a 60% lump sum and 40% annuity split. Different provisions apply to smaller balances and premature exits. Set the annuity percentage in the tool according to the rules applicable to you.
Final Thoughts
Not sure how much to put into NPS every month? Try a few amounts in the calculator and see what the numbers look like. You might find that a smaller contribution works better for your budget over the years. There’s no need to stretch yourself too thin. This article is meant to give you a general idea, not financial advice. If you need help deciding, have a word with a registered financial adviser first.
