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SIP Calculator for Retirement Planning: How Much to Invest Monthly at 30, 40, 50?

By Abinandhan • May 2026 • 12 min read

sip for retirement planning calculator monthly sip for retirement at 40

Retirement planning is not a one-size-fits-all exercise. The SIP amount you need depends heavily on your current age. Starting at 30 versus 40 versus 50 makes a dramatic difference in the monthly SIP required. This guide breaks it all down for you.

How Much Corpus Do You Need for Retirement?

Before calculating your SIP, define your target. A common rule is the 25× Rule: Your retirement corpus should be 25× your annual expenses. If you need ₹6 lakhs/year (₹50,000/month), you need ₹1.5 crore. For ₹12 lakhs/year, target ₹3 crores.

SIP Required by Starting Age (Target: ₹3 Crore @ 12% CAGR, Retire at 60)

Start AgeYears to InvestMonthly SIP NeededTotal Invested
25 Years35 Years₹4,600/mo₹19.3 L
30 Years30 Years₹8,500/mo₹30.6 L
35 Years25 Years₹16,000/mo₹48 L
40 Years20 Years₹30,000/mo₹72 L
45 Years15 Years₹59,500/mo₹1.07 Cr
50 Years10 Years₹1,30,000/mo₹1.56 Cr

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30 years
60 years
3.00 Cr

Years to Invest

30

Monthly SIP Needed

-

Assumes 12% CAGR. Full Calculator →

Age-Specific Retirement SIP Strategies

If you're 30: You have 30 years. Even ₹8,500/month builds ₹3 crores. Focus on aggressive equity SIPs — mid-cap and flexi-cap funds. Time is your biggest asset.

If you're 40: You have 20 years. You need ₹30,000/month for ₹3 crores. If that's too high, start with what you can and add a 10% annual step-up. Consider adding a lump sum component using any windfall.

If you're 50: You have 10 years. The math gets hard — ₹1.3 lakh/month is steep. Focus on: (1) Reducing your target corpus by cutting expected expenses, (2) Adding lump sum investments, (3) Adding debt funds for stability as you near retirement.

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Our free calculator helps you find the exact SIP for your retirement goal. Adjust for step-up returns too.

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Frequently Asked Questions

How much SIP should I start at age 30 for retirement?

Starting at 30, a ₹10,000/month SIP at 12% CAGR for 30 years grows to approximately ₹3.5 crores — more than enough for a comfortable retirement.

How much SIP at age 40 to retire at 60?

Starting at 40 with 20 years, you'd need approximately ₹25,000–30,000/month SIP at 12% CAGR to build a ₹3 crore retirement corpus.

Is it too late to start SIP at 50?

It's never too late, but the required SIP is much higher. At 50 with 10 years, you'd need ~₹1.3 lakh/month at 12% to reach ₹3 crores. Consider hybrid or debt funds for stability.

What type of funds are best for retirement SIP?

For a 30-year horizon: aggressive equity (mid-cap, flexi-cap). For 15–20 years: balanced advantage or multi-cap funds. For 10 years or less: conservative hybrid or debt funds.