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Most of Warren Buffett’s wealth came after age 65. Here’s why

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Warren Buffett, chairman and CEO of Berkshire Hathaway, smiles as he plays bridge following the annual Berkshire Hathaway shareholders meeting in Omaha, Nebraska, on May 5, 2019.

Nati Harnik | AP

Warren Buffett is widely praised for his investment acumen.

But one of the biggest factors to his success has nothing to do with picking the right companies.

“His skill is investing, but his secret is time,” Morgan Housel wrote in the bestselling business book, “The Psychology of Money.”

“That’s how compounding works,” Housel wrote.

To that point, 99% of Buffett’s net worth was accumulated after he was 65 years old, Housel said during a 2022 interview with CNBC.

“If Buffett retired at age 65, you would have never heard of him,” Housel said.

Today, Buffett’s total net worth is estimated at $132 billion.

That’s up substantially from the $84.5 billion net worth Buffett had at the time Housel’s book was published in 2020. Most of that wealth came in Buffett’s later years, Housel wrote, with $84.2 billion after he turned 50 and $81.5 billion after he turned 65.

Compound interest accumulates not only the on the initial amount invested, but also to the interest in previous periods.

Buffett has compared it to a snowball rolling down a hill. By the time it gets to the bottom, it is much larger.

“The trick is to have a very long hill, which means starting very young or living … to be very old,” Buffett said.

How to use compound interest to your advantage

Everyday investors can easily put the power of compound interest to work.

“Start early — as young as you can — and even if it’s just small amounts, just keep doing it,” said David Rea, president of Salem Investment Counselors in Winston-Salem, North Carolina.

Buffett himself got an early start, making his first stock purchase at age 11. But after selling the three shares of Cities Service, he saw the stock surge, which served as an early lesson that it’s hard to predict when to buy a stock and when to sell it.

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People tend to get excited when the market is going up, which prompts them to buy, noted Bradley Klontz, a certified financial planner and behavioral finance expert with Your Mental Wealth Advisors.

Then when markets drop, they tend to get scared and sell, which is the opposite of what they should be doing, said Klontz, who is also a member of the CNBC FA Council.

The S&P 500 has returned more than 10% per year on average over the past 100 years, Klontz noted. Yet investors who try to time the market won’t reap the full benefit of those gains if they’re moving in and out of their investments.

Individuals are not necessarily to blame; survival instincts will prompt you to follow the crowd.

“We’re wired to do it,” Klontz said.

Becoming a millionaire is ‘easy’ if you start early

We’re also wired to consume today rather than prioritize future gratification. To combat that, it helps to have a specific vision for why you’re investing — the freedom you hope to achieve, the car you want to drive and the emotional satisfaction that life will bring you, Klontz said.

When you clearly have that goal in mind, take action and set up automated movements of your money, say from your paycheck to your 401(k) plan, he recommended.

Like Buffett, individuals will also reap the most rewards if they start young.

“It’s actually pretty easy to become a millionaire if you’re starting early,” Klontz said.

Buffett: I would buy the S&P 500 in a second

But the longer you wait, the harder it is to catch up. For example, the $5 a day you would need to accumulate $1 million when you’re just starting out may turn into $500 a month at age 30, he said.

The good news is that an investment strategy does not need to be complicated. Buffett himself has recommended individuals keep it simple with a low-cost S&P 500 index fund.

“If you buy an S&P 500, index fund, week in and week out, you will compound to a large amount of money,” Rea said.

Investors can also take other cues from Buffett — don’t panic; buy American; and keep investing through good and bad, Rea said.

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Personal Finance

Maximizing Returns in High Rate Climate and market uncertainty

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Maximizing Returns in High-Rate Climate

In the macroeconomic environment of late July 2026, personal cash management requires an active, structured approach to wealth preservation. With central bank benchmark rates remaining elevated to ensure long-term disinflation, conservative yield-bearing vehicles—such as short-term U.S. Treasury bills, money market funds, and high-yield savings accounts (HYSAs)—continue to offer reliable nominal returns between 4% and 5%. For individual investors, maximizing net returns requires moving beyond passive checking accounts and executing a disciplined cash laddering strategy.

Leaving substantial liquid capital in traditional bank deposits creates an invisible drag on personal net worth due to ongoing inflation. By implementing a tiered liquidity framework, individuals can split emergency cash reserves and short-term capital allocations across rolling maturities. Allocating cash into 4-week, 8-week, and 13-week Treasury bills creates a continuous cycle of maturing liquidity, allowing investors to continuously reinvest capital at prevailing market yields while maintaining immediate access to emergency funds.

Tax efficiency represents a critical dimension of high-yield cash optimization. For high-earning individuals residing in states with substantial local income taxes, direct holdings in short-term U.S. Treasury instruments often deliver superior net post-tax yields compared to standard commercial bank HYSAs. Because interest earned on federal Treasury bills is strictly exempt from state and local taxation, investors can retain a larger portion of their compounding interest gains without taking on additional credit or market risk.

Ultimately, personal wealth accumulation in mid-2026 relies on intentional capital deployment. Cash should be managed as a productive asset class that generates consistent, risk-free returns. Regularly auditing account yield terms, automating recurring transfers, and leveraging tax-advantaged fixed-income instruments ensures that personal liquidity remains fully optimized against macroeconomic fluctuations.

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Personal Finance

Algorithmic Wealth Management: Balancing Automated Financial Planning with Human Oversight

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Balancing Automated Financial Planning with Human Oversight

The personal finance industry in July 2026 is experiencing a technological evolution, driven by the wide deployment of next-generation algorithmic wealth management tools. Modern digital financial platforms have expanded far beyond basic automated index investing; today’s robo-advisors utilize real-time tax-loss harvesting, dynamic portfolio rebalancing, and hyper-personalized spending analysis to optimize retail investor outcomes. However, as these digital solutions become ubiquitous, investors face the crucial challenge of balancing automated execution with human strategic judgment.

The core advantage of automated financial planning platforms lies in their ability to remove emotional bias from investment execution. During periods of market volatility or localized sector realignments, automated algorithms systematically rebalance portfolios back to target asset allocations without falling victim to panic selling or speculative enthusiasm. Furthermore, integrated cash-flow monitoring algorithms analyze individual spending patterns in real time, automatically sweeping surplus income into designated retirement or debt-liquidation accounts to accelerate net worth accumulation.

Despite these operational advantages, algorithmic tools have inherent structural limitations when addressing complex, highly personalized financial life events. Decisions involving multi-generational estate planning, highly complex tax strategies, small business exits, or nuanced real estate transactions require contextual human judgment that software models cannot replicate. Relying solely on automated models without periodic human professional review can result in misaligned risk profiles or overlooked tax liabilities during major life transitions.

The optimal approach for personal financial planning in late 2026 is a hybrid advisory model. Individuals should utilize automated platforms for routine asset allocation, continuous tax optimization, and low-cost passive index tracking, while engaging qualified human financial advisors for periodic strategic planning, estate structuring, and qualitative risk evaluations. This dual approach ensures maximum cost efficiency and disciplined execution while retaining essential strategic guidance.

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Personal Finance

High-Yield Optimization: Structuring Personal Cash Reserves in a Sustained Rate Environment

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Structuring Personal Cash Reserves in a Sustained Rate Environment

In the financial environment of mid-2026, personal cash management has re-emerged as a vital component of holistic wealth building. With central bank policy rates holding firm to maintain long-term price stability, yield-bearing instruments such as money market funds, high-yield savings accounts (HYSAs), and short-term Treasury bills continue to offer compounding returns around 4% to 5%. For individual investors, effectively structuring cash reserves requires shifting away from passive bank deposits toward active yield optimization.

A frequent pitfall in personal asset management is leaving substantial liquid capital in traditional checking or low-yield savings accounts, where real returns are continuously eroded by baseline inflation. By implementing a disciplined ‘cash ladder’ strategy—allocating liquid funds across tiered maturities using ultra-short Treasury instruments and FDIC-insured high-yield accounts—individuals can secure maximal yields while retaining immediate liquidity for emergency expenses or tactical investment opportunities.

Simultaneously, investors must evaluate the tax efficiency of their cash holdings based on their tax bracket and geographic location. For high earners situated in states with high local income taxes, direct holdings in short-term U.S. Treasury bills often yield a higher net post-tax return than standard high-yield savings accounts, as Treasury interest is strictly exempt from state and local taxation. Understanding these nuanced tax distinctions allows individuals to capture significant incremental gains without taking on additional market risk.

Ultimately, personal financial health in late 2026 hinges on intentional liquidity management. Cash reserves should not be viewed merely as static emergency funds, but as a dynamic asset class that contributes positively to net worth growth. Regularly auditing yield terms, automating cash transfers, and optimizing for post-tax efficiency ensures that personal capital remains fully productive across all economic conditions.

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