Best Interest Standards

What the law requires today — DOL five-part test, SEC Reg BI, NAIC model, and practical impact.

Regulatory snapshot. Federal and state rules evolve. The summary below is for education and general planning context — not legal advice. When you work with us, recommendations are documented under the standards that apply to your situation.

How we got here

For decades, ERISA fiduciaries were defined under a narrow 1975 five-part test. The DOL tried several times to broaden that definition; courts repeatedly pushed back. The SEC then layered Regulation Best Interest on broker-dealer conduct. Separately, every state adopted annuity best-interest rules based on the NAIC model. Today, retirement advice sits at the intersection of ERISA (when it applies), SEC rules, and state insurance law.

1974–1975 — ERISA is enacted; the DOL issues the original five-part fiduciary test.
2016 — The Obama-era DOL fiduciary rule expands coverage; industry groups sue.
March 2018 — The Fifth Circuit vacates the 2016 rule; the 1975 test returns.
June 2020 — SEC Regulation Best Interest takes effect for broker-dealers serving retail clients.
2024–2026 — Litigation over the 2024 Retirement Security Rule concludes with the rule vacated; DOL guidance reaffirms the 1975 five-part test for ERISA fiduciary status where that framework applies.

The Supreme Court’s 2024 decision in Loper Bright Enterprises v. Raimondo ended Chevron deference, meaning courts interpret ERISA’s fiduciary language independently rather than deferring automatically to the DOL.

The DOL 1975 five-part test

Under current DOL guidance, a person is an ERISA “investment advice fiduciary” only if all five elements are satisfied at once. Missing any one prong means ERISA fiduciary status does not attach to that relationship.

Investment recommendation — Advice or a recommendation on buying, selling, or holding securities or other property, or on the value of such property.
On a regular basis — The advice is ongoing, not a one-off comment. This prong historically excluded many single-event rollover conversations from ERISA coverage.
Mutual understanding — Plan or fiduciary and advisor share an understanding that the advice is provided in an advisory or fiduciary capacity.
Primary basis — The advice is a primary basis for investment decisions (the recipient is substantially relying on it).
Individualized to the plan — The guidance is tailored to the specific plan’s circumstances — not generic education alone.

Rollover reality. A one-time recommendation to roll workplace assets to an IRA often does not satisfy the “regular basis” prong — so ERISA’s strict prohibited-transaction framework may not apply to that specific recommendation. SEC Reg BI and state standards can still apply. That distinction matters for documentation and supervision.

When the five-part test often is met

Ongoing discretionary management of plan assets or a named investment manager role
Standing advisory relationship with a plan investment committee
Regular portfolio recommendations under a written advisory agreement (including many 3(21) / 3(38) arrangements)

When it often is not met

One-time rollover or annuity recommendation to a terminating participant
General participant education without individualized recommendations
Product sales without an ongoing advice relationship

PTE 2020-02. Where a person is an ERISA fiduciary and receives conflicted compensation, Prohibited Transaction Exemption 2020-02 remains the primary path for relief — with impartial conduct standards and required documentation.

SEC Regulation Best Interest (Reg BI)

Reg BI governs broker-dealers’ recommendations to retail customers — including IRA rollovers and account-type decisions — regardless of whether ERISA fiduciary status is triggered. Its four obligations are:

Care — Reasonable diligence and skill; recommendations must reflect the customer’s profile and consider alternatives.
Disclosure — Material facts about the relationship, fees, conflicts, and limitations.
Conflict of interest — Identify conflicts; mitigate or disclose as the rule requires.
Compliance — Written policies and procedures designed to achieve Reg BI compliance.

Reg BI’s “best interest” standard is not identical to ERISA’s exclusive loyalty duty. For retirement investors, the practical difference is largest in rollover situations where ERISA may not attach but Reg BI still does.

Topic	ERISA (when test met)	SEC Reg BI
Typical scope	Advice to ERISA plans and participants when all five prongs are satisfied	BD recommendations to retail customers
Many rollover recommendations	Often outside ERISA fiduciary status	Still covered as account-type / securities recommendations
Conflicts	Prohibited transaction rules when fiduciary status applies	Mitigate or disclose; different enforcement framework

NAIC model and state annuity rules

The NAIC revised Model Regulation #275 so producers recommending annuities must act in the consumer’s best interest, with product-specific care, disclosure, and conflict management. States have adopted versions of that model, creating a parallel best-interest layer for insurance products alongside securities rules.

Practical impact for you

“Best interest” is not one slogan — it is several overlapping regimes. What matters on the ground is whether advice is prudent, transparent, and aligned with your goals; whether conflicts are controlled; and whether recommendations are documented. That is how Frederick Saide approaches planning: clear standards, plain language, and a process you can follow.

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