Buy, Borrow, Die: The Billionaire Wealth Strategy Explained
- Jan 5
- 4 min read
How do billionaires use their wealth without selling assets and triggering massive tax bills?
They follow a simple pattern.
That pattern is known as Buy, Borrow, Die.
What Is Buy, Borrow, Die?
The term Buy, Borrow, Die was coined by tax law professor Edward McCaffery to describe a long-standing wealth strategy used by high-net-worth families.
Step one: buy assets — such as stocks, real estate, or businesses — that grow over time.
Step two: borrow against those assets instead of selling them when you need money. Borrowing allows access to cash without triggering capital gains taxes — the taxes owed when you sell something for more than you paid for it — and without giving up ownership of the asset.
Step three: die, letting heirs inherit assets at their current market value through step-up in basis, which means the asset may have grown for years, but the government does not go back and tax that past growth when ownership transfers to the heir.
This structure allows wealth to be used, preserved, and passed on without requiring assets to be liquidated.
Why This Is a Billionaire Wealth Strategy — and How It Scales
Buy, Borrow, Die works best at the billionaire level because of the sheer size of their assets, not because the rules are different.
Anyone can implement the strategy. The rules are the same; only the scale changes.
Buy, Borrow, Die — Same Strategy, Different Scale
The table below shows the core components of Buy, Borrow, Die and how each one applies at different levels of wealth.
Core Component | Billionaires / Ultra-Wealthy | Women Building Wealth |
Assets owned | Large stock portfolios, businesses, and real estate | Stock portfolios held in retirement and brokerage accounts, plus business equity |
Borrowing against assets | Borrowing against investment assets via private banking, securities-backed loans, and margin | Borrowing against investment assets via banks, brokerages, and traditional real-estate loans |
Ability to borrow without selling | Ability to borrow without selling assets | Same ability — based on the value of your assets |
Estate and tax treatment | Estate planning that benefits from step-up in basis | Same tax treatment applies |
How assets support lifestyle | Assets fund income and lifestyle over time | Same ability based on the value of your assets |
A Simple Example of Buy, Borrow, Die
Buy
Sharon earns $100,000 a year.
Over roughly 30 years, she consistently invests in an S&P 500 index fund inside a taxable brokerage account. On average, she invests about $10,000 per year, for total contributions of $300,000.
Through long-term market growth and staying invested, her portfolio grows to approximately $1.75 million.
Borrow
Sharon wants to add passive income by purchasing a rental property.
Instead of selling her investments, she borrows directly against them.
Using a securities-backed loan from a bank or brokerage, she borrows $400,000 against her $1.75 million taxable brokerage account, with the investments pledged as collateral.
Her portfolio remains fully invested and continues compounding.
She uses the borrowed funds to purchase a $400,000 rental property outright, with no mortgage.
The property rents for about $3,000 per month. After taxes, insurance, maintenance, and loan interest, the rental produces ongoing cash flow while her investment portfolio continues to grow.
Over time, her portfolio grows from $1.75 million to $2.5 million, and the rental property appreciates to $600,000.
Die
When Sharon dies, her heirs inherit both the $2.5 million investment portfolio and the $600,000 property.
Under current tax law, they do not pay taxes on the gains that occurred during Sharon’s lifetime.
Investment gains not taxed:
$2.5 million − $300,000 total contributions = $2.2 million
Real-estate gains not taxed:
$600,000 value − $400,000 purchase price = $200,000
Her heirs can sell, hold, or borrow against the assets and continue the same pattern.
Where to Start
You don’t implement Buy, Borrow, Die all at once.
You build consistently over time.
A. Max out employer-sponsored retirement plans
If your employer offers a 401(k) or Thrift Savings Plan match, capture every dollar of it. That’s guaranteed growth and the foundation of a long-term asset base. As income allows, work toward contributing the maximum so you are steadily buying appreciating assets.
B. Educate yourself and stay invested through volatility
Learn how the stock market works and commit to riding volatility, especially during your working years when you are contributing consistently. Historically, the U.S. stock market has recovered from every downturn and rewarded investors who stayed invested over long periods. Volatility is part of growth, not a signal to exit.
C. Build a taxable brokerage account after retirement contributions are established
Once you’ve contributed fully to employer-sponsored retirement plans, open a taxable brokerage account and invest consistently. There are many options, including platforms like Fidelity, Schwab, or Vanguard. As this account grows, it can provide borrowing options without selling investments, including borrowing from a bank using your investments as collateral or brokerage-linked lending programs.
D. Consider using insurance for long-term wealth transfer
Research properly structured Indexed Universal Life (IUL) policies. When used appropriately, these are designed to support the same principles of Buy, Borrow, Die — buying a long-term asset that appreciates in value, tax-free borrowing, and tax-free transfer of wealth to heirs.
Why This Strategy Matters
Buy, Borrow, Die is about strategy — learning how the financial rules actually work and using them to your benefit.
Wealth isn’t built in a single decision or a perfect year, but through consistency, patience, and understanding how assets, taxes, and time work together.
The more informed you are, the more control you have over what your money can do for you and for the people who come after you.
Related Money Dearest Pillars
→ Cash Flow
→ Saving & Investing
→ Debt Management
→ Insurance
→ Money Mindset
Sources
ProPublica — Buy, Borrow, Die: How America’s Ultrawealthy Stay That Way
Internal Revenue Service — Capital Gains and Losses
Internal Revenue Service — Basis of Assets
Tax Foundation — Step-Up in Basis Explained
Disclaimer: This content is for educational and informational purposes only and is not intended as financial, legal, or tax advice. Individual circumstances vary, and you should consult a qualified professional regarding your specific situation before making financial decisions.
