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Elon and Kimbal Musk: the two estimates that can be compared
| Rank among these two | Family member | Forbes estimated net worth | Reported basis |
|---|---|---|---|
| 1 | Elon Musk | $886.4 billion as of September 16, 2026; Forbes real-time estimate | Forbes describes his wealth as primarily connected to SpaceX and Tesla, with stakes in Neuralink and The Boring Company as well. |
| 2 | Kimbal Musk | $1.6 billion as of September 10, 2026; Forbes real-time estimate | Forbes attributes his wealth to stakes in Tesla and SpaceX. It reports 0.03% Tesla ownership and an estimated 0.05% SpaceX stake. |
Forbes’ Elon Musk profile and Kimbal Musk profile use snapshots six days apart. The ranks here therefore compare the reported estimates, not values measured on a single shared date. Forbes’ figures are publisher estimates, not audited statements of each person’s assets and liabilities.
Why this is not a complete ranking of the Musk family
Public profiles and articles mention other Musk relatives, but the available evidence does not establish comparable, date-stamped current net-worth estimates for Maye, Errol, or Tosca Musk. Secondary estimates for them vary and may not disclose a transparent method or valuation date. Assigning them precise places in a current ranking would create more certainty than the evidence supports.
Maye Musk’s modeling and nutrition career, and her account of helping Elon and Kimbal with early Zip2 expenses, are described in a 2025 El País interview. That family and career context does not establish her current net worth. Tesla’s 2026 proxy filing identifies Elon and Kimbal as brothers. A family relationship alone does not establish an individual’s wealth.
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What “net worth” means in these estimates
Net worth is an estimate of assets minus liabilities, not a measure of cash someone can readily spend. For people whose wealth is heavily tied to companies, share prices and private-company valuations can move the estimate; ownership, options, debt and information that is not publicly disclosed also matter. Forbes identifies company interests as the basis for the estimates above, but its published totals should not be read as independently audited personal balance sheets.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why the figures can change so quickly
These numbers are snapshots rather than stable balances. Forbes listed Elon Musk at $342 billion in its 2025 billionaire ranking, while its real-time profile reported $886.4 billion as of September 16, 2026. Those figures come from different dates and formats, not a fixed-value measurement. The Associated Press reported in June 2026 that billionaire estimates can shift by tens of billions in a day or even hours.
Kimbal’s estimate has also changed across snapshots: Forbes estimated his wealth at about $700 million in November 2021, then reported $1.6 billion as of September 10, 2026. The earlier figure is historical context, not a current competing estimate.
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- Issue Type: MARCH, 2020, Subject: FORBES MAGAZINE
- Country/Region Of Manufacture: United States, Language: English
- Subscription: No, Month: March
- Publication Name: FORBES MAGAZINE, Year Published: 2020
- Country Of Manufacture: United States
How to read a Musk family wealth ranking
- Check the date beside the number. Real-time estimates can change, and the two Forbes figures above are not from the same day.
- Check the source and estimate type. Forbes provides the reported estimates here; they are not audited totals.
- Separate public information from inference. Company stakes help explain a reported estimate, but they do not reveal every asset, liability or private holding.
- Do not infer a relative’s fortune from Elon’s. The available sources do not establish current individual net-worth figures for every member of the family.
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