Billie Eilish Brother Net Worth (Updated 2026).
Billie Eilish’s brother, Finneas O’Connell, began his musical journey at a young age, much like his sister. He started playing piano at the age of seven and picked up the guitar a few years later. Finneas honed his skills by playing in various bands throughout his teenage years, gaining experience and refining his craft.
Finneas’ breakthrough came in 2015 when he co-wrote and produced his sister Billie Eilish’s debut single, “Ocean Eyes.” The song gained massive popularity on SoundCloud and eventually led to a record deal with Interscope Records. Since then, Finneas has been instrumental in producing and co-writing many of Billie’s hit songs, including “Bad Guy” and “Everything I Wanted,” which have earned him multiple Grammy Awards.
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Billie Eilish’s Brother’s Current Net Worth (2025)
As of 2025, Billie Eilish’s brother, Finneas O’Connell, has an estimated net worth of $20 million. This significant figure is a testament to his successful career as a musician, producer, and songwriter.
Finneas O’Connell’s Career
Finneas, a multi-instrumentalist, began his career at the age of 12, producing and engineering music in his parents’ basement. He gained prominence after co-writing and producing his sister Billie Eilish’s debut album “When We All Fall Asleep, Where Do We Go?” which won a Grammy for Album of the Year in 2020. He has also produced for other artists like Justin Bieber, Selena Gomez, and Halsey.
Other Ventures
In addition to his musical endeavors, Finneas has ventured into acting. He had a small role in the 2019 film “The Grudge” and appeared in an episode of the TV series “The Good Place” in 2020. He also co-founded the record label “FINNEAS Records” with his sister in 2021.
Assets
Finneas owns a home in Los Angeles, California, which he purchased in 2018. He also owns a recording studio, which he built in his parents’ basement and later moved to a professional space. He has invested in cryptocurrency and has a collection of vintage guitars.
Annual Income
Finneas’ annual income is primarily derived from music production, songwriting royalties, and his own music releases. According to sources, he earns around $5 million annually. His income also includes earnings from his acting roles and investments in cryptocurrency.
Frequently Asked Questions about Billie Eilish Brother
**Frequently Asked Questions: Billie Eilish’s Brother**
1. Who is Billie Eilish’s brother?
Billie Eilish’s brother is Finneas O’Connell. He is a musician and producer, known for his work with Billie Eilish.
2. How old is Finneas?
Finneas was born on July 30, 1997, making him 25 years old as of 2022.
3. What is Finneas’ net worth?
Finneas’ net worth is estimated to be around $25 million.
4. Did Finneas produce all of Billie Eilish’s music?
Finneas co-wrote and produced most of Billie Eilish’s debut album “When We All Fall Asleep, Where Do We Go?” and continues to be heavily involved in her music, but he does not produce all of it.
5. Does Finneas have his own music career?
Yes, Finneas has his own music career. He released his debut solo EP “Blood Harmony” in 2021 and continues to release his own music.
6. Are Billie Eilish and Finneas twins?
No, Billie Eilish and Finneas are not twins. They are two years apart, with Billie being the younger sibling.
7. How did Finneas and Billie start making music together?
Finneas and Billie started making music together in their childhood. They would record songs in their parents’ basement, which eventually led to the creation of Billie’s debut single “Ocean Eyes”.
8. What awards has Finneas won?
Finneas has won several awards, including multiple Grammy Awards. He has won for his work with Billie Eilish, including Producer of the Year (Non-Classical) in 2020.
9. Does Finneas have any siblings other than Billie?
Yes, Finneas has an older sister named Maggie Baird, who is also a musician and actor.
10. What is Finneas’ role in Billie Eilish’s band?
Finneas is the primary producer and co-writer for Billie Eilish’s music. He also plays multiple instruments and provides backing vocals during live performances.
