Buy, Borrow, Die: The Tax Strategy Billionaires Don’t Talk About (But Can’t Stop Using)

For decades, many of the world’s wealthiest entrepreneurs and investors have accumulated fortunes that seem almost impossible to comprehend. Individuals such as Warren Buffett, Elon Musk, Jeff Bezos, and Larry Ellison have watched the value of their businesses and investment portfolios climb into the tens or even hundreds of billions of dollars. Yet despite these enormous gains, they have often reported taxable incomes that appear surprisingly modest compared to their net worth.

Part of the answer lies in a financial planning concept commonly referred to as Buy, Borrow, Die. At its heart, Buy, Borrow, Die is remarkably straightforward. An investor purchases assets expected to appreciate over time, avoids selling them whenever possible, borrows against their increasing value to generate liquidity, and eventually passes those assets to heirs. Depending on the applicable tax rules at the time, those heirs may inherit the assets with a stepped-up cost basis, effectively resetting the taxable gain.

As Warren Buffett famously observed, “Our favorite holding period is forever.” That philosophy encapsulates one of the key ideas underlying Buy, Borrow, Die: wealth often grows most effectively when high-quality assets are allowed to compound over very long periods rather than being sold prematurely.

The Origins of Buy, Borrow, Die

Although the phrase itself gained widespread popularity only in recent years, the underlying principles have existed for decades. Wealthy families have long understood that selling highly appreciated assets can create substantial tax liabilities while simultaneously reducing future investment returns.

Financial advisors working with entrepreneurs and family offices have therefore often encouraged clients to separate liquidity needs from ownership decisions. Instead of liquidating a valuable business or stock portfolio to fund a purchase, they explore borrowing solutions that preserve ownership while providing access to cash.

The strategy became particularly visible during the technology boom, when founders accumulated enormous paper wealth through company shares. Selling large blocks of stock could trigger capital gains taxes, affect market confidence, or reduce voting control over the business. Borrowing against those holdings often provided a more flexible alternative.

Over time, this approach evolved into what journalists and commentators now summarize as Buy, Borrow, Die.

Understanding the Difference Between Wealth and Income

One of the most common misconceptions in public discussions is the belief that wealth and income are interchangeable. In reality, they represent entirely different concepts.

Income generally refers to money received through salaries, wages, dividends, interest, rental payments, or profits from selling assets. Wealth, by contrast, measures the value of assets owned after subtracting liabilities.

An entrepreneur may own shares worth $10 billion but receive only a relatively modest annual salary. If those shares continue appreciating without being sold, the increase contributes to net worth but does not necessarily create taxable income under current U.S. law.

This distinction explains why many billionaires can appear extraordinarily wealthy while simultaneously reporting comparatively limited taxable earnings.

Charlie Munger once remarked that “The big money is not in the buying or selling, but in the waiting.” His observation reflects a principle familiar to long-term investors: much of the value created by successful investing comes from allowing assets to compound rather than constantly trading them.

Buy, Borrow, Die builds directly upon that philosophy by encouraging investors to avoid unnecessary sales whenever possible.

Learn more: 10 Strategies Used By Billionaire to Avoid Paying Taxes

Step One: Buying Assets That Appreciate Over Time

The first component of the strategy may appear deceptively simple, but it is arguably the most important. Without exceptional underlying assets, the rest of the strategy becomes meaningless.

The objective is not merely to purchase investments but to acquire assets capable of generating substantial appreciation over many years or even decades. Public equities, privately held businesses, commercial real estate, intellectual property, venture capital investments, and certain alternative assets may all serve this purpose depending on the investor’s expertise and objectives.

Successful practitioners generally focus on assets with durable competitive advantages and long-term growth potential rather than speculative opportunities promising quick profits.

Imagine an entrepreneur who purchases shares in a growing software company for $2 million. Over twenty-five years, that business expands internationally and the value of the shares rises to $150 million. The owner has created extraordinary wealth, but selling those shares would immediately transform decades of unrealized appreciation into a taxable event.

This is where the second stage of the strategy becomes relevant.

Learn more: 10 Assets That Are Better Than Cash

The Power of Long-Term Compounding

Albert Einstein is often credited with calling compound interest the “eighth wonder of the world,” although historians debate whether he actually made the remark. Regardless of its origin, the underlying concept remains one of the most powerful forces in finance.

Every time an investor sells an appreciating asset and pays taxes, part of the capital available for future growth disappears. By contrast, maintaining ownership allows the entire investment base to continue compounding.

This effect becomes increasingly significant over long periods.

Suppose two investors each begin with a portfolio worth $10 million. The first sells assets regularly, realizing gains and paying taxes along the way. The second minimizes sales and allows investments to compound uninterrupted while accessing liquidity through other means.

After several decades, even modest differences in annual after-tax returns can produce dramatically different outcomes because each year’s gains build upon previous years’ gains.

For this reason, many experienced investors place extraordinary emphasis on minimizing unnecessary taxable events rather than attempting to maximize short-term returns.

Read more: How to Start Investing As A Beginner

Why Selling Can Be More Expensive Than It Appears

Selling an appreciated asset rarely involves only receiving cash.

The transaction may trigger federal capital gains taxes, state taxes where applicable, and additional surtaxes depending on the investor’s circumstances. Furthermore, once ownership ends, the investor no longer participates in future appreciation generated by that asset.

For founders, another cost may be even more important: control.

Large ownership stakes often provide voting power and strategic influence over a company. Selling substantial portions of those holdings can dilute control and alter governance dynamics.

As a result, many wealthy entrepreneurs view selling as a decision of last resort rather than a routine method of generating liquidity.

This mindset lays the foundation for the second stage of Buy, Borrow, Die, in which borrowing replaces selling as the preferred mechanism for accessing cash.

Step 2: Borrow against your assets

If the “Buy” phase of Buy, Borrow, Die is about compounding wealth over time, the “Borrow” phase is where the strategy becomes financially powerful in practice. This stage is what allows ultra-wealthy individuals to maintain their ownership of appreciating assets while still accessing significant liquidity for lifestyle needs, investments, philanthropy, or diversification.

At first glance, borrowing against investments may seem counterintuitive. Most people are conditioned to think of debt as something to avoid. Yet in modern private banking and institutional finance, borrowing secured by appreciating assets is not only common but often treated as a standard tool of wealth management.

The central idea is simple: if you own assets worth tens or hundreds of millions of dollars, you do not need to sell them to access cash. Instead, you can pledge them as collateral and borrow against their value, typically at relatively favorable interest rates compared to unsecured lending.

This approach allows the underlying investments to remain intact, continuing to generate returns, dividends, and long-term appreciation while the owner uses borrowed funds for liquidity.

As Warren Buffett has often emphasized in discussions about long-term investing discipline, the greatest advantage in wealth creation comes from letting high-quality assets compound without interruption. Borrowing, when used strategically, can support that principle by avoiding forced liquidation.

Why the Wealthy Prefer Borrowing Over Selling

For individuals with large unrealized capital gains, selling investments can trigger substantial tax consequences. In many cases, a single liquidation event could result in millions or even tens of millions in capital gains taxes, depending on jurisdiction and holding period.

Borrowing, by contrast, allows access to liquidity without triggering a taxable event. This creates what is often referred to in financial planning as a “tax-neutral liquidity event.”

Beyond taxes, there are additional strategic reasons wealthy individuals prefer borrowing.

One major factor is control. Founders and major shareholders often wish to maintain voting rights and strategic influence over companies they helped build. Selling shares can dilute that control, while borrowing preserves ownership intact.

Another factor is market timing risk. Selling a large block of assets introduces the possibility of missing future appreciation. Many high-net-worth investors believe their holdings will continue to increase in value over long time horizons, making liquidation less attractive.

This mindset is closely aligned with the long-term philosophy often associated with investors like Charlie Munger, who repeatedly emphasized the importance of patience and allowing quality assets to compound over decades rather than reacting to short-term fluctuations.

A Realistic Example of Borrowing Against Wealth

To understand how this works in practice, consider an investor who owns a diversified portfolio worth $50 million.

Rather than selling shares to fund a major purchase, the investor opens a securities-backed line of credit with a private bank. The bank agrees to lend up to 40 percent of the portfolio value, providing a borrowing capacity of $20 million.

The investor chooses to draw $5 million to purchase a home and fund other expenses. Interest is charged only on the amount borrowed, and the portfolio remains fully invested throughout the period.

If the portfolio appreciates at an average annual rate of 7 to 10 percent, the underlying assets may grow significantly faster than the cost of borrowing, especially during low-interest-rate environments.

From the investor’s perspective, the key advantage is that no taxable sale has occurred. The $5 million in liquidity is effectively extracted from the portfolio without disrupting its long-term growth trajectory.

However, this structure also introduces financial obligations. Interest must be paid, and the loan must eventually be repaid either through cash flow, refinancing, or partial asset liquidation at a later stage.

Risks and Constraints of Borrowing Against Investments

While borrowing is often presented as an elegant solution to liquidity needs, it carries meaningful risks that are sometimes underappreciated in simplified explanations of Buy, Borrow, Die.

The most significant risk is market volatility. If the value of the underlying portfolio declines sharply, the lender may require additional collateral or partial repayment. In extreme cases, assets may be liquidated to restore the required loan-to-value ratio. This is commonly known as a margin call.

Rising interest rates present another challenge. Because many of these loans are variable-rate, the cost of borrowing can increase significantly over time, reducing the financial advantage of the strategy.

There is also structural risk in assuming that asset values will continue to rise steadily. While diversified portfolios have historically trended upward over long periods, they are not guaranteed to do so in the short term or even across certain economic cycles.

As a result, sophisticated investors typically use borrowing conservatively rather than maximizing leverage. The goal is not to overextend but to create flexible liquidity while preserving ownership.

Why Private Banking Plays a Critical Role

Most individuals are familiar with standard consumer banking, but Buy, Borrow, Die strategies typically operate within the private banking ecosystem, where services are tailored to high-net-worth clients.

Private banks often provide customized lending arrangements, including portfolio-backed credit lines, structured financing, and negotiated interest rates based on overall client relationships.

These institutions also offer integrated wealth management services that combine investment strategy, tax planning, estate structuring, and lending. This holistic approach allows clients to coordinate borrowing decisions with long-term portfolio objectives.

In many cases, access to these financial structures is not simply a matter of wealth but also of relationship depth, credit history, and the overall stability of the client’s asset base.

The Economic Logic Behind Borrowing Instead of Selling

At a fundamental level, the borrowing strategy reflects a preference for deferring taxation and preserving compounding capital.

Every time an asset is sold, part of the future earning potential of that capital base is reduced due to taxes paid at the point of sale. By borrowing instead, investors preserve full exposure to future gains while still meeting present liquidity needs.

This creates a financial dynamic where wealth continues to grow on an untaxed base, at least until a realization event occurs in the future.

In essence, borrowing allows wealthy individuals to “separate” consumption from ownership, maintaining long-term investment exposure while still accessing the benefits of their wealth in the present.

As we transition into the final stage of Buy, Borrow, Die—estate transfer and generational wealth planning—it becomes clear why this strategy has become so central to discussions about tax policy and wealth concentration.

Step 3: Die, the final step in Wealth Preservation

The final component of Buy, Borrow, Die is the most politically and economically controversial, and also the least intuitive for those unfamiliar with estate taxation. While the first two stages focus on asset accumulation and liquidity management, the final stage determines how wealth is ultimately transferred across generations.

In many jurisdictions, including the United States, assets passed on at death may receive a step-up in cost basis, meaning their tax basis is adjusted to reflect their fair market value at the time of inheritance. This mechanism can significantly reduce or even eliminate capital gains taxes on decades of appreciation.

To understand why this matters, consider the following conceptual example. An investor purchases shares in a company decades ago for a relatively small amount. Over time, those shares appreciate dramatically, reflecting both business growth and broader market expansion. By the time of death, the value of those shares may have multiplied many times over the original purchase price.

If the heirs inherit those assets with a stepped-up basis equal to their market value at the time of transfer, then the embedded capital gains effectively disappear from a tax perspective. If the heirs later sell the assets, they may only owe tax on any additional appreciation that occurs after inheritance, not the entire lifetime gain.

This structural feature is one of the key reasons Buy, Borrow, Die is so effective as a multigenerational wealth strategy.

Why Death Becomes a Financial Planning Event

The idea that death functions as a financial reset point may seem unusual, but in estate planning it is a central organizing principle. Wealthy individuals often structure their holdings not only around lifetime tax efficiency but also around how assets will be treated upon transfer.

Trust structures, family partnerships, and estate planning vehicles are frequently used to ensure continuity of ownership while minimizing tax exposure during transition. These mechanisms can be highly sophisticated and are often tailored to specific jurisdictions and asset types.

At the core of the strategy is the understanding that unrealized gains may never be taxed if they are never realized during the original owner’s lifetime and are subsequently reset at transfer.

This is why Buy, Borrow, Die is not simply about reducing taxes in the present. It is about reshaping the timing of taxation across generations.

The Role of Intergenerational Wealth Transfer

Wealth transfer is not a marginal aspect of global finance; it is one of its largest components. Trillions of dollars in assets are expected to pass from one generation to the next over the coming decades, particularly as baby boomer wealth transitions to heirs.

In this context, strategies that optimize tax treatment at the point of transfer become especially significant. Families with substantial assets often engage in long-term planning decades in advance, coordinating investment strategy with estate structuring to ensure continuity and efficiency.

Warren Buffett has repeatedly emphasized the importance of long-term stewardship of capital, famously noting that his preferred holding period is “forever.” While Buffett himself has pledged to donate the majority of his wealth to philanthropy, the principle he highlights is relevant: the longer capital is preserved and productively deployed, the more powerful compounding becomes over time.

Buy, Borrow, Die aligns with this philosophy by minimizing unnecessary disruption to long-term investment compounding.

The Central Idea Behind Buy, Borrow, Die

At its core, Buy, Borrow, Die is not a trick or loophole but a reflection of how modern financial systems treat ownership, borrowing, and taxation differently.

It demonstrates three foundational principles of contemporary wealth management. First, that unrealized gains are not taxed until realized under most systems. Second, that borrowing does not typically constitute taxable income. Third, that estate transfer rules can significantly affect how lifetime gains are ultimately taxed.

When combined, these principles create a framework in which wealth can grow, be accessed, and be transferred with a high degree of tax efficiency, provided the underlying assets continue to perform and legal frameworks remain stable.

As Charlie Munger once observed, much of investing success comes from patience, discipline, and avoiding unnecessary errors. Buy, Borrow, Die extends that idea into a structural framework for wealth preservation, where the avoidance of forced selling and premature taxation becomes a central advantage.

Final Thoughts

Buy, Borrow, Die is often portrayed in simplified or sensational terms, but in reality it is a sophisticated integration of investment strategy, credit markets, and estate planning law. It reflects how wealth behaves over long time horizons when left largely intact and strategically managed.

For ultra-high-net-worth individuals, it provides a method of maintaining liquidity without sacrificing ownership or triggering taxable events. For policymakers, it raises important questions about fairness, timing of taxation, and the distinction between income and wealth.

For most individuals, the full strategy is not directly applicable. However, the underlying principles—long-term investing, minimizing unnecessary taxes, and using credit responsibly—remain broadly relevant across income levels.

Ultimately, Buy, Borrow, Die is less about avoiding taxes entirely and more about controlling when and how taxes are incurred. In that sense, it represents one of the clearest examples of how financial structure can be as important as financial performance in determining long-term outcomes.