Ritesh Sabharwal CFP®

W.M.W #52: Create ₹1 Crore portfolio with the 8-4-3 Rule

Reading time: 5 minutes - June 13, 2026

↓

Hey Reader

Ask any seasoned investor - the first ₹1 crore is always the hardest. Why? Because in the early years, your wealth is driven more by your savings than your returns. Compounding is still warming up. Think of it like pushing a heavy flywheel: the first few turns take maximum effort. But once it starts moving, momentum takes over.

So question arises: How to get this ₹1 crore with investments of ₹20-25k per month?

If you invest ₹21,250/month in a mutual fund SIP for 15 years at 12% returns, you can build ₹1.01 crores. Of that ₹1.01 crores, you personally invested only ₹38.25 lakhs. The remaining ₹62.88 lakhs came from compounding - money your money made.

In the first 8 years, your corpus grows to ₹33.37 lakhs. In the next 4 years (years 9-12), it nearly doubles to ₹65.47 lakhs. In the final 3 years alone, it adds another ₹35.67 lakhs.

Same SIP. Same rate. But growth accelerates every phase. This is the 8-4-3 rule of compounding.

What is the 8-4-3 Rule?

The 8-4-3 rule describes how SIP wealth grows in three distinct phases - each faster than the last.

Phase 1 (Years 1-8): Steady growth. You're planting seeds.
​Phase 2 (Years 9-12): Accelerated growth. Seeds become plant.
​Phase 3 (Years 13-15): Exponential growth. Plant become a tree.

The rule works on one principle: Compounding needs time. The longer you stay invested, the less work you do and the more your money does for you.

The Three Phases Explained

Phase 1: Years 1-8 (The Patience Phase)

What's happening: You're investing ₹21,250/month. Returns are compounding, but the base is still small. Growth feels slow.

After 8 years:

• Total invested: ₹20.40 lakhs
• Corpus: ₹33.37 lakhs
• Interest earned: ₹12.97 lakhs

This phase tests your discipline. Most people quit here because growth feels slow. They see ₹33 lakhs and think: "It's not worth it." They're wrong. The best is about to begin.

Phase 2: Years 9-12 (The Acceleration Phase)

Compounding hits its stride. Your ₹33.37 lakh base is now generating more interest than your monthly SIP contribution. Returns are earning returns.

After 12 years:

• Corpus: ₹65.47 lakhs
• Gained ₹32.10 lakhs in just 4 years
• That's more than the entire 8-year Phase 1 gain (₹12.97 lakhs)

In Phase 2, 4 years created more wealth than 8 years of Phase 1. This is the snowball beginning to roll.

Phase 3: Years 13-15 (The Exponential Phase)

Your corpus is now so large that annual interest alone exceeds your annual SIP contribution. Money is making more money than you are.

The math that changes everything:

Year 15 interest earned: ₹5.24 lakhs (annual interest in final year)
​Your annual SIP contribution: ₹2.55 lakhs
Your money earned 2x more in Year 15 than you contributed.

You're no longer building wealth. Wealth is building itself.

The Full 15-Year Journey: ₹21,250/Month → ₹1.01 Crore

Total invested: ₹38.25 lakhs
​Total corpus: ₹1.01 crores

Compounding contribution: ₹62.88 lakhs (62% of final corpus came from compounding, not your money)

Why Most People Never Reach Phase 3

The 8-4-3 rule only works if you stay invested through all three phases. But most people quit in Phase 1.

Reason 1: Impatience in Year 3-5

"I've been investing for 3 years and only have ₹9 lakhs. This isn't working."
​What they don't see: The compounding engine is warming up. Quitting at Year 3 is like switching off the engine right before it hits full speed.

Reason 2: Market Crash Panic

Nifty drops 30% in 2020. Portfolio shows red everywhere.
​Emotional response: Stop SIP. Wait for "things to settle."
​Cost: Miss the recovery. Buy fewer units at bottom. Lose years of compounding.
​Reality: SIP during market crashes is actually ideal. You buy more units at lower NAV. When markets recover, those cheap units multiply.

Reason 3: Lifestyle Inflation Kills Consistency

Year 1: ₹21,250 SIP feels manageable.
Year 4: Salary increased. Lifestyle increased. SIP feels burdensome. Pause it.
​Cost: One 6-month SIP pause can cost ₹8-12 lakhs in final corpus at Year 15.

Reason 4: Switching Funds Too Often

"This fund gave 8% last year. Let me move to that one that gave 22%."
​Chasing last year's winners = selling low, buying high.
​Constant switching resets compounding cycles, defeats the 8-4-3 rule entirely.

How to Maximize the 8-4-3 Rule

✅ Strategy 1: Step-Up SIP (10% Annual Increase)

Don't invest the same amount forever. As income grows, grow your SIP. Start with ₹10,000/month and increase 10% every year - you can still reach ₹1 crore in 15 years.

✅ Strategy 2: Never Stop During Market Crashes

SIP during crashes = buying more units at lower NAV. When markets recover, those cheap units multiply. Stopping during crashes misses the biggest wealth-creation window.

✅ Strategy 3: Choose Growth Option (Not Dividend)

Growth option: Returns stay in fund. Compound on compound.
​Dividend option: Fund pays you returns. You spend them. Compounding resets.
​Over 15 years this single checkbox difference = Lakhs gap in final corpus.

✅ Strategy 4: Review Annually (But Don't Tinker)

Check if fund underperforms benchmark for 3+ consecutive years. Otherwise: stay invested, increase SIP, and let compounding do its job.

What If You Can't Start With ₹21,250/Month?

Start with what you can. Increase every year. A ₹5,000 SIP started today is infinitely better than a ₹21,250 SIP started 3 years from now.

👉 Action Steps This Week

☐ Step 1: Calculate your SIP target - work backwards from your goal corpus using any SIP calculator
​☐ Step 2: Start your SIP today - every day delayed is compounding days lost
​☐ Step 3: Choose Growth option - not Dividend
​☐ Step 4: Set up Step-Up SIP - 10% annual increase automates wealth building
​☐ Step 5: Write down your "Do Not Stop" rule - commit to staying invested through market crashes
​☐ Step 6: Review in April every year - check fund vs benchmark, increase SIP if income grew

The Bottom Line

Phase 1 (8 years): ₹20.40L invested → ₹33.37L corpus
​Phase 2 (4 years): ₹10.20L invested → Corpus nearly doubles to ₹65.47L
​Phase 3 (3 years): ₹7.65L invested → Corpus crosses ₹1.01 crores

The less you invest (in later phases), the more you earn. That's the power of staying invested.

Most people understand compound interest. But they quit in Phase 1 before compounding actually kicks in.

The 8-4-3 rule has one requirement: Time.
​Not market timing. Not stock picking. Not complex strategies. Just time. And consistency.

P.S. Forward this to someone who you think can be benefitted from the newsletter. I have created 1 pager to summarize the details for you and your loved ones which you can share ahead as well.

Wealth isn't built in a day. It's built over years.

P.S. I write every day to help you make smarter money decisions. Connect with me on LinkedIn👇.

​