Buy, Borrow, Die: The Billionaire’s Secret to Tax-Free Living

Tax Tips / Liquidity Mgmt

Buy, Borrow, Die: The Billionaire’s Secret to Tax-Free Living

By Team BMT Jan 13, 2026

💡 Executive Summary

  • Problem: Selling appreciated assets (Stocks, Real Estate) to fund your lifestyle triggers Capital Gains Tax (23.8%+).
  • Solution: Buy assets, Borrow against them (SBLOC) at low rates to pay for life, and hold until you Die.
  • Result: Loan is repaid from the estate, and “Step-up in Basis” wipes out the Capital Gains Tax entirely.
⚠️ THE “MARGIN CALL” RISK
Leverage cuts both ways. If the value of your pledged assets drops significantly (e.g., market crash), the bank will demand immediate repayment. Safe LTV (Loan-to-Value) is < 50%. Never borrow to the max.

Why do UHNW individuals (Tier L4) rarely sell stock? Because selling is a taxable event; borrowing is not. “Buy, Borrow, Die” is not a catchy slogan; it is the fundamental operating system of dynastic wealth preservation.

🧐 Core Tool: SBLOC
A Securities-Based Line of Credit (SBLOC) is different from a Margin Loan. It is non-purpose (cannot be used to buy more stock) but offers significantly lower rates (e.g., SOFR + Spread) and flexible repayment (Interest Only).

Performance Simulation

Cost of $5M Cash (Lifestyle Spend)
Sell Stock (23.8% Tax) $1.2M Immediate Cost
Borrow (SBLOC @ 6%) $300k/yr Cost (No Tax Event)
Deferral Power

SBLOC vs. Margin Loan

Feature Margin Loan (Retail) SBLOC (Private Banking)
Primary Use Buy more stock Buy Real Estate / Lifestyle
Interest Rate High (Base + High Spread) Low (SOFR + Low Spread)
Tax Treatment Invest. Interest Expense* Invest. Interest Expense*
“The poor pay interest to survive. The rich pay interest to avoid taxes. The difference is in the collateral.”
BMT designs for tax reality, not theory.