Is Your Agent Required to Put You First? It Depends on the Product, the Account, and Your State.

Ask most people whether the agent selling them a life insurance policy or an annuity is legally required to act in their best interest, and they’ll assume the answer is yes. It seems like the kind of thing that must be true.

It is not — at least not as a single, nationwide rule. What actually governs whether someone selling you an insurance or investment product has to put your interests ahead of their own commission is a patchwork of overlapping standards that differ by the product you’re buying, the type of account it sits in, and the state you live in. And the one federal rule that came closest to a blanket “best interest” duty has now been struck down by the courts twice.

— Part OneThe assumption most people make.

There’s a meaningful legal difference between two standards that sound similar:

1. Suitability.The older, weaker standard. A recommendation only has to be suitable for you — appropriate given your age, finances, and goals. A product can be suitable and still be far from the best available, including one that pays the agent more.
2. Best interest / fiduciary.The stronger standard. The seller must put your interest ahead of their own financial interest — which, at its fullest (a true fiduciary duty), means recommending what's best for you even when it pays them less.

The gap between those two is exactly where commission-driven sales live. A whole life policy or an indexed annuity can clear the “suitability” bar while still being the wrong call for the buyer — and, not coincidentally, the one that pays the largest commission. Which standard applies to your purchase is therefore not academic. It’s the difference between “this won’t obviously hurt you” and “this is genuinely the best thing for you.”

— Part TwoThe rule that keeps dying.

The most ambitious attempt to impose a real best-interest duty came from the U.S. Department of Labor. In 2016, the DOL finalized a fiduciary rule that would have held anyone giving retirement or IRA advice — including insurance agents selling annuities into retirement accounts — to a fiduciary, best-interest standard.

It didn’t survive. In March 2018, the U.S. Court of Appeals for the Fifth Circuit vacated the entire rule in Chamber of Commerce v. U.S. Department of Labor, holding that the DOL had overreached in redefining who counts as a fiduciary.

The Department tried again. It finalized a new “Retirement Security Rule” in 2024 — and it met the same fate. Two federal courts in Texas stayed the rule in July 2024, and, according to the law firm Groom Law Group, the courts ultimately vacated it, with the DOL restoring the older, narrower standard in 2026. Twice now, the broadest federal best-interest duty for retirement-account sales has been written and then struck down.

Twice the federal government tried to make retirement-account salespeople put you first. Twice the courts said no. That is the protection people assume they already have.— On the 2016 and 2024 DOL rules

— Part ThreeThe patchwork that's left.

With no uniform federal fiduciary rule standing, what protects you depends on what you’re buying and where:

1. Securities → SEC Regulation Best Interest.For products that are securities — variable annuities, mutual funds — recommended by a broker-dealer, the SEC's Regulation Best Interest (adopted June 2019, effective June 2020) imposes a "best interest" standard. It's stronger than suitability — but it is not a full fiduciary duty, and it doesn't cover plain insurance products.
2. Fixed and indexed annuities → your state's rules.In 2020, the NAIC revised its Suitability in Annuity Transactions Model Regulation (Model #275) to add a "best interest" standard for annuity sales. It has since been adopted by the large majority of states — roughly 49 jurisdictions. But it is a suitability-plus standard, explicitly not a fiduciary duty, and a handful of states still run on the older suitability rule.
3. Traditional life insurance → mostly suitability.An ordinary term or whole life policy generally isn't a security and isn't covered by the annuity best-interest reg. In most states the standard is suitability, and a licensed agent is not your fiduciary.
4. Registered investment advisers → fiduciary.An RIA owes you a genuine fiduciary duty under federal law. But many people selling insurance are not RIAs — a distinction that's easy to miss when everyone uses the word "advisor."

— Part FourWhat it means for you.

The practical takeaway isn’t cynicism — it’s a question you can ask out loud. Because the standard isn’t uniform, the burden of knowing which one applies falls on you. So make the seller put it on the record.

Educational reporting on public regulatory developments. Not legal or financial advice, and standards vary by state and change over time. Confirm the rules that apply to your situation with a qualified professional.