# Ian Castille

> Ian Castille is a fee-only financial advisor at Capital Advantage in Walnut Creek, California, who holds the CFP credential. Ian charges a percentage of assets and an ongoing planning fee (a $500,000 asset minimum) and focuses on retirement planning and physicians & residents.

Page: https://find.wellspent.co/advisors/ian-castille/
Built from SEC adviser records and the firm's website; last checked October 30, 2026.

## Facts

- **Firm:** Capital Advantage
- **Based in:** Walnut Creek, California
- **Fee model:** Percentage of assets; Ongoing planning fee
- **Fees (firm's website):** a $500,000 asset minimum
- **Accepting new clients:** Yes (firm's website)
- **Assets under management (firm):** $1.28B across 2,271 accounts
- **Credentials:** CFP
- **Specialties:** Retirement planning, Physicians & residents
- **Works with:** Pre-retirees, Physicians
- **CRD:** 5091378 (https://adviserinfo.sec.gov/individual/summary/5091378)
- **SEC registration:** Investment adviser representative in CA
- **Exams passed:** Series 66 (2006)
- **Firm size:** 16 employees
- **Disclosures:** None reported
- **Website:** https://capitaladvantage.com/

## Frequently asked questions

### Is Ian Castille a fee-only financial advisor?

Yes, according to SEC records as of October 29, 2026: Ian holds no broker registration, and Capital Advantage reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency on its Form ADV.

### How does Ian charge for financial advice?

Ian charges a percentage of assets and an ongoing planning fee.

### How much does Ian charge?

According to Capital Advantage's website, checked October 30, 2026: a $500,000 asset minimum.

### Where is Ian Castille based?

Ian Castille is based in Walnut Creek, California.

### What does Ian specialize in?

Ian's specialties include retirement planning and physicians & residents. Ian works with pre-retirees and physicians.

### What credentials does Ian Castille hold?

Ian Castille holds the CFP credential.

### Is Ian Castille registered with the SEC?

Yes. Ian Castille is registered as an investment adviser representative in CA (CRD 5091378), per SEC Investment Adviser Public Disclosure data as of October 29, 2026.

### How much does Capital Advantage manage?

Capital Advantage reports $1.28B across 2,271 accounts in assets under management.

### How do I contact Ian Castille?

Through Ian's website, capitaladvantage.com.

## Sources

- SEC adviser records (https://adviserinfo.sec.gov/individual/summary/5091378): the firm's Form ADV reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency, and the advisor holds no broker registration
- SEC Investment Adviser Public Disclosure and Form ADV: registration, exams, and firm facts, data as of October 29, 2026
- The firm's website (https://capitaladvantage.com/): specialties, clients served, and fees, checked October 30, 2026

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Source: Wellspent, the public graph of fee-only advisors (https://find.wellspent.co). No paid placement.