In this episode, Lucas and Luna unpack the Solo 401(k), a retirement account tailor-made for freelancers, consultants, and small business owners without employees. They walk through how the contribution math works — the employee deferral plus the employer profit-sharing piece — and why it can push total contributions well above the standard 401(k) limit. They get specific with examples: a graphic designer earning $120,000 net, a therapist clearing $80,000, and a side-hustler who just started. They explain the difference between traditional and Roth Solo 401(k)s, why an S-corp election changes the calculation, and the one big gotcha around solo 401(k)s and full-time W-2 jobs. They also share a practical tip on where to open one and what paperwork you need to avoid penalties. If you're self-employed and you've been leaving tax deductions on the table, this episode gives you a concrete roadmap to catch up before year-end.