Billionaire Timelines: First Million, First Billion, Today
| Person | First $1 million | First $1 billion | Net worth (Forbes) | Main source |
|---|---|---|---|---|
| Elon Musk | 1999, age 27 ($22M from the Zip2 sale) | 2012, age 40 | $936B (Oct 1, 2026) | SpaceX, Tesla |
| Jeff Bezos | 1997, age 33 (Amazon IPO) | 1998, age 34 ($1.6B, Forbes 400) | $370B (Oct 1, 2026) | Amazon |
| Larry Page | — | 2004, age 31 (Google IPO) | $286B (Oct 1, 2026) | Google / Alphabet |
| Mark Zuckerberg | — | 2008, age 23 ($1.5B, then the youngest self-made billionaire) | $251B (Oct 1, 2026) | Meta |
| Bernard Arnault | — | — | $171B (Forbes 2026 list, March) | LVMH |
| Warren Buffett | 1962, age 31–32 (Buffett Partnership) | 1985, age 55 (Forbes 400) | $142B (Oct 1, 2026) | Berkshire Hathaway |
| Bill Gates | — | 1987, age 31 ($1.25B, Forbes 400) | ~$108B (his own estimate, May 2025) | Microsoft |
— = not reliably documented. Sources: Forbes real-time billionaires (October 1, 2026, via Forbes' monthly top-10 report), annual Forbes World's Billionaires and Forbes 400 lists, company filings and contemporary news reports.
Elon Musk: Reinvesting Every Win
- 1995 (age 24): Co-founds Zip2, an online city-guide software company, with his brother Kimbal.
- 1999 (27): Compaq buys Zip2 for $307 million; Musk receives about $22 million for his 7% stake.
- 1999–2002: Co-founds X.com, which merges with Confinity to become PayPal. eBay buys PayPal for $1.5 billion in 2002; Musk receives about $176 million before tax.
- 2002–2004: Founds SpaceX (2002) and leads Tesla's first funding round (2004), putting most of his PayPal money into both.
- 2008 (37): Both companies come close to running out of cash; Musk becomes Tesla's CEO.
- 2012 (40): Debuts on Forbes' billionaires list with an estimated $2 billion.
- January 2021 (49): Becomes the world's richest person for the first time as Tesla shares surge.
- June 2026 (54): SpaceX's IPO makes him the first person with a verified net worth above $1 trillion (Forbes).
Jeff Bezos: Holding Through the Crash
- 1994 (age 30): Leaves the hedge fund D. E. Shaw and starts Amazon in a garage outside Seattle.
- 1997 (33): Amazon goes public at $18 a share; Bezos becomes a millionaire on paper.
- 1998 (34): Debuts on the Forbes 400 with $1.6 billion.
- 2000–2001: Amazon shares fall more than 90% from their dot-com peak. Bezos keeps his stake.
- 2005–2006: Amazon Prime launches (2005), followed by Amazon Web Services' first major services (2006).
- 2017–2018 (53–54): Becomes the world's richest person; in July 2018 his net worth passes $150 billion.
- 2021 (57): Steps down as Amazon CEO; remains executive chair.
- October 2026 (62): $370 billion, second on Forbes' list.
Warren Buffett: Slow, Steady Compounding
- 1942 (age 11): Buys his first stock.
- 1956 (25): Starts the Buffett Partnership in Omaha.
- 1962 (31–32): Becomes a millionaire through the partnerships; starts buying Berkshire Hathaway shares.
- 1965 (34–35): Takes control of Berkshire Hathaway; the partnership is wound up in 1969.
- 1985 (55): Joins the Forbes 400 as a billionaire.
- 2008 (77–78): Briefly the world's richest person, at an estimated $62 billion.
- End of 2025 (95): Steps down as Berkshire CEO; Greg Abel takes over in January 2026.
Buffett has given away tens of billions of dollars of Berkshire stock, mostly to the Gates Foundation and his family's foundations, yet his net worth was still about $142 billion in October 2026.
Mark Zuckerberg: Keeping Control
- February 2004 (age 19): Launches TheFacebook from his Harvard dorm.
- 2007 (23): Microsoft invests $240 million for a 1.6% stake, valuing Facebook at $15 billion.
- 2008 (23): Forbes names him the youngest self-made billionaire, at $1.5 billion.
- May 2012 (28): Facebook goes public at $38 a share.
- October 2021 (37): Renames the company Meta Platforms.
- October 2026 (42): $251 billion.
Timeline of the World's Richest Person Since 1993
| Period | Richest person | Source of wealth |
|---|---|---|
| 1993–2008 | Bill Gates | Microsoft (first to pass $100B, April 1999) |
| 2008 | Warren Buffett | Berkshire Hathaway |
| 2009 | Bill Gates | Microsoft |
| 2010–May 2013 | Carlos Slim | Telecoms (América Móvil, Grupo Carso) |
| 2013–2017 | Bill Gates (Amancio Ortega briefly in 2016) | Microsoft |
| 2017–January 2021 | Jeff Bezos | Amazon |
| January 2021–December 2022 | Elon Musk (Bezos briefly back on top in 2021) | Tesla, SpaceX |
| December 2022–mid 2024 | Bernard Arnault, Elon Musk and Jeff Bezos (trading places) | LVMH / Tesla, SpaceX / Amazon |
| June 2024–present | Elon Musk (Larry Ellison briefly on September 10, 2025) | SpaceX, Tesla |
Based on Forbes and Bloomberg rankings as summarized in Wikipedia's "Timeline of the world's richest person"; exact dates differ between the two indexes.
What This Means for You
Reaching this kind of scale is not a realistic plan, but the principles behind it scale down:
- Own equity, not just income: broad index funds are the everyday way to own a slice of growing companies.
- Hold through volatility: markets fall sharply every so often; long-term investors who stay invested capture the recoveries.
- Give compounding time: $10,000 growing at 7% a year becomes about $76,000 in 30 years without adding a dollar; at 10% it becomes about $174,000.