What fee-only actually means
A fee-only financial advisor is compensated exclusively by clients, never by commissions, referral fees, or product sales. Fee-only advisors may charge hourly rates, flat fees, retainer fees, or a percentage of assets under management, but in every case the payment comes directly from the client. This structure eliminates the conflicts of interest that arise when an advisor earns more by recommending one product over another. The National Association of Personal Financial Advisors, the largest professional association of fee-only advisors, requires members to sign an annual fiduciary oath affirming they accept no third-party compensation.
The concept is straightforward, but the terminology has been deliberately muddied by the industry. Advisors who accept commissions often describe themselves as fee-based, a term that sounds similar to fee-only but means something entirely different. Others emphasize that they are fiduciaries without disclosing that they also accept payments from product providers. The only way to know for certain is to read the advisor's Form ADV Part 2A, the disclosure document that every registered investment adviser must file with the SEC or state regulators.
Fee-only is a statement about the source of compensation, not the format. An advisor who charges one percent of assets under management is fee-only if that fee comes directly from the client and no other payments come from third parties. An advisor who charges a flat annual retainer is also fee-only under the same conditions. The format of the fee matters for deciding whether the advisor's incentives align with your situation, but the fee-only designation itself depends solely on whether any third parties are paying the advisor.