Imagine owning ten billion dollars in shares but almost no cash. Most people would sell. The very rich often borrow instead, and it can cost far less than selling. This animated explainer follows the strategy known as "buy, borrow, die": why gains are usually taxed only when an asset is sold, how a securities-backed loan turns shares into cash without a sale, how the US step-up in basis resets gains at death, what happens when markets fall or interest rates rise, and what ProPublica's 2021 reporting on the "true tax rate" did and did not show.

Chapters:

0:00 Intro

0:20 The Paper Fortune

1:26 The Tax Bill

2:22 The Loan

3:30 Buy, Borrow, Die

4:11 The Step-Up

5:13 The Math

5:59 The Risks

7:09 The True Tax Rate

8:29 Around the World

• About 10 minutes, 1080p at 60 fps, with an English AI voiceover

• Original synthesized music and sound effects, mixed to -14 LUFS

• Original vector animation in a flat, neon explainer style

• Fact-checked: capital gains rules, securities-backed loans, the step-up in basis, margin calls, the 2022-2023 rate rise and the 2021 IRS data reporting

• Tax rules differ by country. Education and entertainment only, not financial or tax advice

The hidden reason the richest people borrow money they don't actually need.