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Fiduciary vs fee-only vs fee-based: what each word tells you about your advisor

Fiduciary describes the legal duty an advisor owes you: to act in your best interest. Fee-only and fee-based describe pay. Fee-only usually means the client is the only source of pay. Fee-based usually means fees plus some commissions. An advisor can be a fiduciary under any pay model, so ask about both.

CompareUpdated November 10, 20267 min read

Duty versus pay

Fiduciary is a duty. Fee-only and fee-based are pay models. They answer different questions.

Federal law covers advisers

The SEC says an investment adviser owes its clients a duty of care and a duty of loyalty.

Pay shapes conflicts

Commissions can give an advisor a reason to favor one product. Fees paid only by you remove that one source.

Ask for Form CRS

Registered advisers must give you a short relationship summary that lists fees, conflicts and the standard of conduct.

Three words get mixed up when families shop for an advisor: fiduciary, fee-only and fee-based. They do not mean the same thing. One describes a duty. The other two describe how the advisor gets paid. Once you see that split, the sales language gets much easier to read.

This page is general education. It is not advice for your situation. For your own facts, talk with your CPA, your attorney or a qualified advisor.

What is the difference between fiduciary, fee-only and fee-based?

Fiduciary is the duty an advisor owes you. Fee-only and fee-based are pay models. One answers “whose interest comes first?” The other answers “who pays this advisor, and how?” You need the answer to both questions.

Here is the side-by-side view.

Fiduciary Fee-only Fee-based
What it describes A legal duty How the advisor is paid How the advisor is paid
The core idea Act in the client’s best interest Paid by the client, not by product commissions Client fees plus some other pay, which can include commissions
Is it a defined legal status? For SEC-registered advisers, yes No single legal definition for the label No single legal definition for the label
What it does not tell you How much you pay Whether the advice is good Which products earn extra pay
Best follow-up question “Do you act as a fiduciary for all of my advice?” “Does anyone besides me pay you or your firm?” “List every way you and your firm get paid.”

Treat the pay columns as common meanings, not legal terms. Firms define them in different ways. That is why you ask for specifics.

What does it mean for an advisor to be a fiduciary?

A fiduciary must act in your best interest and may not put its own interest ahead of yours. For investment advisers registered with the SEC, this duty comes from federal law and has two parts: a duty of care and a duty of loyalty.

The SEC states the core idea this way: the adviser “must at all times serve the best interest of its client and not subordinate its client’s interest to its own.”

In plain terms:

  • Duty of care. The advice must fit your goals. The adviser must do reasonable homework and keep watching your plan over time.
  • Duty of loyalty. The adviser may not favor itself. It must disclose conflicts of interest so you can give informed consent, and it should avoid conflicts where it can.

See the glossary entry on a fiduciary for a short definition.

Seek First states its position on its own site: “Are you a fiduciary? Yes.” That is the firm’s claim. You can check the firm’s registration and its Form CRS on Investor.gov, as you would with any adviser.

What does fee-only mean?

Fee-only usually means the advisor is paid only by the client and does not earn commissions or other pay from selling products. The idea is simple: fewer outside payments mean fewer reasons to favor one product.

A fee-only advisor may charge in different ways:

  • A percentage of the assets the advisor manages
  • A flat fee for a plan
  • An hourly rate
  • A retainer

Fee-only is a pay description. It is not a promise of skill, and it does not replace the fiduciary question. Ask the same follow-up questions of every firm.

One more point. The label has no single legal definition. A firm that uses it should be able to say, in writing, who pays it and how.

What does fee-based mean?

Fee-based usually means the advisor earns client fees and may also earn other pay, such as commissions on some products. The word sounds close to fee-only, but it can mean something quite different.

The SEC’s investor site explains the two basic pay models for brokers and advisers:

  • Typically, “you pay a broker a fee called a commission or markup every time you buy or sell an investment.”
  • Typically, “you pay an adviser an ongoing asset-based fee based on the total value of your account.”

Some firms and people do both. The SEC calls firms that are registered as both a broker and an adviser “dual registrants.” If someone offers both kinds of services, the SEC advises you to “make sure you understand when they are acting as a broker and when they are acting as an adviser.”

Fee-based is not a bad word. It is a vague one. Ask for the full list of ways the person and the firm get paid.

Can a fee-based advisor still be a fiduciary?

Yes, an advisor can be a fiduciary and still earn more than one kind of pay. What matters is whether the advisor discloses conflicts and acts in your best interest in the advice you receive. Pay does not erase the duty, but it can create conflicts the advisor must disclose.

Think of it as two checks:

  1. Duty check. Does the advisor owe me a fiduciary duty for all of the advice, or only some of it?
  2. Pay check. Does anyone besides me pay this advisor or the firm, and does that create a reason to prefer one choice over another?

An advisor who is a fiduciary and is paid only by you gives you the clearest answer on both checks. An advisor who earns commissions may still act as a fiduciary, but you should read the conflict disclosures with care.

How do I check which model an advisor uses?

Start with the SEC’s free tools, then ask direct questions. Registered advisers must give you a short relationship summary called Form CRS. It tells you about services, fees and costs, conflicts of interest and the standard of conduct.

Follow these steps:

  1. Go to the “Check Out Your Investment Professional” search tool on Investor.gov. Search the firm and the person.
  2. Open the firm’s Form CRS. Read the sections on fees, conflicts and standard of conduct.
  3. Read any disciplinary history. The SEC says that if the words “Disclosure Reported” appear, the individual or firm has disciplinary history.
  4. Ask the firm for its Form ADV Part 2 brochure and read how it describes compensation.
  5. Ask the questions in the next section, and write down the answers.

What should I ask before I hire an advisor?

Ask about duty, pay and conflicts in plain words. A clear advisor answers each question without hedging and puts the answers in writing.

Question What a clear answer sounds like
Are you a fiduciary for all the advice you give me? “Yes,” with the scope stated
How are you and your firm paid, in total? A full list, with no “it depends”
Does anyone other than me pay you or your firm? “No,” or a clear list of who and why
Do you earn more if I choose one product over another? “No,” or a clear description of the conflict
What conflicts of interest do you have, and how do you manage them? Specific examples, not general language
Where is Form CRS, and can I keep a copy? Handed over right away

If the answers stay vague, that tells you something too.

How does this apply to a Christian financial advisor?

Faith does not replace the duty or the pay questions. A shared faith can shape how an advisor listens and what goals you plan around. It does not change the legal standard or how the firm is paid. Ask the same questions of a faith-based firm that you would ask of any other.

Many families look for an advisor who treats money as stewardship. Our page on stewardship explains that idea. The Christian financial advisor guide covers what to expect from a faith-based firm and how to compare firms. If you want a longer checklist, see how to choose a Christian financial advisor.

At Seek First, the firm says it gives away 100% of its profits every year, and that its team has over 100 years of combined experience in the financial services industry. Those are the firm’s own statements. Your own review should still rest on the SEC tools above.

What is the short answer?

Ask two questions. First, are you a fiduciary for everything you tell me? Second, who pays you, and how? Fiduciary names the duty. Fee-only and fee-based name the pay. A strong answer on both gives you the clearest picture, and a written answer is better than a verbal one.

Next step

If you want to talk through these questions with a real team, see how Seek First serves families on our how we serve page. You can also schedule a free 20-minute call at contact or call (866) 398-4044.

Seek First Inc. is an SEC-registered investment adviser. The information on this page is general education. It is not tax, legal or investment advice.

Frequently asked questions

Is a fiduciary the same as fee-only?

No. Fiduciary is a legal duty to act in your best interest. Fee-only is a way of being paid, usually only by the client and not by commissions. An advisor can be a fiduciary and still earn fees in several ways, so ask about duty and pay as two separate questions.

Is fee-based the same as fee-only?

No. People use fee-based loosely. It often means a mix of client fees and commissions or other payments tied to products. Fee-only usually means no commissions at all. Because fee-based has no single meaning, ask the firm to list every way it and its people get paid.

What does a fiduciary have to do under federal law?

An SEC-registered investment adviser owes a duty of care and a duty of loyalty. In plain terms, the adviser must serve your best interest and may not put its own interest ahead of yours. Conflicts of interest must be disclosed, and some must be avoided.

How do I check if an advisor is registered?

Use the free Check Out Your Investment Professional search tool on Investor.gov. Search the firm or the person by name. You can read the firm's Form CRS relationship summary and any disciplinary history there. Do this before you sign anything.

Are you a fiduciary at Seek First?

On its website, Seek First answers this question directly: "Are you a fiduciary? Yes." For the specific duties, fees and conflicts that apply to you, read the firm's Form CRS and Form ADV, and ask any question on a free call.

Terms on this page

Sources

  1. SEC: Regulation Best Interest and the Investment Adviser Fiduciary Duty (Chairman Jay Clayton, July 8, 2019)
  2. Investor.gov (SEC): Investor.gov/CRS
  3. Investor.gov (SEC): Investor.gov/CRS, broker fees
  4. SEC: Staff Bulletin on Standards of Conduct for Broker-Dealers and Investment Advisers, Care Obligations

Written by Seek First and checked against the sources above on November 10, 2026. Tax limits, ages and laws change. This page is general education, not tax, legal or investment advice. Please consult legal or tax professionals about your own situation. Investing involves risk of loss.

Ready to experience what faith-guided financial planning feels like?

We work with families who have more than $1 million in investible assets and are looking for a long-term, high-trust advisory relationship. If that sounds like you, let’s start with a conversation.

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