The difference between discretionary and non-discretionary investment accounts comes down to one question: who pushes the button on a trade. In a discretionary account, your adviser buys and sells on your behalf without checking with you first. In a non-discretionary account, nothing happens until you say yes. That single distinction reshapes the legal duty your adviser owes you, how you’re charged, when you owe taxes, and how much of your own time the relationship demands.
Who Decides to Trade
A discretionary arrangement gives your adviser standing authority to execute trades within boundaries you’ve agreed to in advance. You and the adviser build an investment policy statement covering your goals, risk tolerance, and any restrictions you want to impose, such as excluding tobacco stocks. From there, the adviser manages the portfolio day to day. When markets drop sharply on a Tuesday morning, the adviser can rebalance that same hour rather than leaving a voicemail and waiting for a callback.
To grant this authority, you sign a limited power of attorney filed with the brokerage firm holding your assets. The document lets the adviser place trades and move money between investments inside the account. It does not permit withdrawals to the adviser’s own accounts or any use of your money outside the agreed strategy.1U.S. Securities and Exchange Commission. Investment Advisory Agreement for Discretionary Accounts – Section: Authority of Adviser FINRA requires signed, dated written authorization naming the specific person or people who may exercise discretion, and a separate manager at the firm must formally accept the account.2FINRA. FINRA Rule 3260 – Discretionary Accounts
In a non-discretionary account, the adviser researches opportunities, builds recommendations, and presents them, but the decision to act is yours. No trade, rebalance, or allocation change goes through without your explicit approval. Approval typically happens through a recorded phone call or a digital confirmation on the firm’s platform. Under SEC Rule 10b-10, broker-dealers must send you a written trade confirmation at or before completion of each transaction, detailing the security, price, quantity, and fees.3eCFR. 17 CFR 240.10b-10 – Confirmation of Transactions
The trade-off is speed. If your adviser spots a time-sensitive opportunity or wants to cut a losing position during a sharp sell-off, nothing can happen until you respond. That delay costs real money in fast-moving markets. It also means you carry the responsibility of staying engaged. Ignore your adviser’s calls and the account effectively freezes.
The Legal Standard Your Adviser Owes You
Authority shapes duty, and this is where the gap between the two models is widest.
The Fiduciary Standard for Discretionary Advisers
Registered investment advisers running discretionary accounts are fiduciaries under Section 206 of the Investment Advisers Act, which makes it unlawful to defraud a client or engage in any practice that operates as a deceit on a client.4Office of the Law Revision Counsel. 15 USC 80b-6 – Prohibited Transactions by Investment Advisers The SEC reads this as creating two core obligations. The duty of care requires the adviser to give advice that serves your best interest, seek best execution for your trades, and monitor your account on an ongoing basis. The duty of loyalty prohibits the adviser from placing their own interests ahead of yours and requires full disclosure of all material conflicts of interest.5Securities and Exchange Commission. Commission Interpretation Regarding Standard of Conduct for Investment Advisers
The ongoing monitoring piece matters more than people realize. A discretionary adviser who collects a quarterly fee but never adjusts the portfolio, never revisits whether the original strategy still fits, and never responds to major changes in your life may be breaching the duty of care. Regulators call this “reverse churning,” and both the SEC and FINRA have flagged it as an enforcement priority. Traditional churning involves excessive trading to generate commissions. Reverse churning is the opposite: charging an ongoing management fee while doing essentially nothing to earn it.
Regulation Best Interest for Broker-Dealers
Broker-dealers who make recommendations in non-discretionary accounts are governed by Regulation Best Interest. The rule requires the broker to act in your best interest at the time a recommendation is made, without placing their own financial interest ahead of yours.6eCFR. 17 CFR 240.15l-1 – Regulation Best Interest The broker must also exercise reasonable diligence and care in understanding the risks, rewards, and costs of any recommendation, and must have a reasonable basis to believe it fits your investment profile.
The critical difference is timing. Regulation Best Interest applies at the moment of recommendation, not on an ongoing basis. A fiduciary adviser has a continuing obligation to monitor and flag problems. A broker under Reg BI satisfies the obligation when the recommendation is made. After you approve the trade, the broker has no duty to watch how it performs or alert you when circumstances change.
What You’ll Pay
Payment tends to follow authority, and each model carries its own incentive problem.
Asset-Based Fees
Discretionary advisers typically charge an annual percentage of assets under management, deducted quarterly. Industry surveys show the most common range falls between about 1.0% and 1.25% for portfolios under $1 million, dropping to roughly 0.75% to 1.0% for accounts between $1 million and $5 million, and to the 0.50% to 0.75% range above $5 million. Most firms use a graduated or “breakpoint” schedule where the percentage decreases as the account grows, so the first $1 million might be charged at 1% while amounts above that are charged at a lower rate.
Interests line up in a simple way: if your portfolio grows, the adviser earns more; if it shrinks, the adviser earns less. The risk is reverse churning. An asset-based fee compensates the adviser whether they place one trade or one hundred, which can quietly reward inaction in accounts that need more active management.
Performance-Based Fees
Some discretionary advisers charge performance-based fees, taking a percentage of profits above a benchmark. The Investment Advisers Act generally prohibits this arrangement unless the client qualifies as a “qualified client.” As of June 29, 2026, that means having at least $1,400,000 under the adviser’s management or a net worth exceeding $2,700,000, excluding your primary residence.7Federal Register. Order Approving Adjustment for Inflation of the Dollar Amount Tests in Rule 205-3 Under the Investment Advisers Act of 1940 These thresholds adjust periodically for inflation and do not apply retroactively to contracts signed before the effective date.
Transaction-Based Fees
Non-discretionary broker-dealer accounts historically ran on commission-per-trade. Most major online brokerages now charge zero commission on stock and ETF trades. Commissions still apply to bonds (often $1 per bond with a minimum), options, and certain other securities, and broker-assisted trades frequently carry a service charge on top of any base commission. Some non-discretionary advisers charge a flat consulting fee, billed hourly or as a fixed annual retainer.
The incentive risk runs the other way here. When an adviser earns a commission on every trade, the temptation is to recommend more transactions than you need. FINRA calls that churning, and the same rules require firms to ensure recommended transactions are not excessive relative to the account’s size and the client’s financial situation.2FINRA. FINRA Rule 3260 – Discretionary Accounts
How Taxes Shift When Someone Else Controls the Sell Button
Capital gains taxes are triggered only when a position is sold, so whoever decides when to sell is effectively deciding when you owe taxes. In a discretionary account, that person is your adviser.
A skilled discretionary manager uses this to your benefit through tax-loss harvesting, selling losing positions to offset gains elsewhere in the portfolio. Because the adviser doesn’t need your approval, they can act before a temporary dip reverses. In a non-discretionary account, by the time the adviser calls, explains the tax logic, and gets your sign-off, the window may have closed.
The flip side: a discretionary adviser might trigger gains you weren’t expecting. Aggressive rebalancing in a strong year can leave you with a larger tax bill than you planned for, and short-term gains on positions held less than a year are taxed at your ordinary income rate rather than the lower long-term rate. If tax control matters to you, make sure your investment policy statement addresses it directly. Some advisers will agree to a “no short-term gains” constraint or commit to harvesting losses before year-end. In a non-discretionary account you inherently control the timing yourself, at the cost of the speed advantage.
What Happens If a Broker Trades Without Your Permission
If a broker executes trades in a non-discretionary account without your prior approval, or exceeds the scope of discretion in a discretionary account, FINRA treats it as unauthorized trading. For individual brokers, fines range from $5,000 to $30,000, with suspensions of one month to two years. When aggravating factors are present, FINRA can permanently bar the individual from the securities industry. Firms face fines from $10,000 to $250,000, and may be suspended from relevant business lines for up to two years.8FINRA. FINRA Sanction Guidelines These are guidelines rather than caps. In egregious cases involving concealment or harm to vulnerable investors, sanctions can exceed the upper ranges.
Which One Fits You
Neither model is inherently better. The right choice depends on how much time you can commit, how much control you want, and how complicated your finances are.
Discretionary accounts tend to work for people who don’t have the time or inclination to review every trade recommendation, who want faster execution during volatile markets, or whose portfolios involve enough moving parts that coordinated management adds real value. Retirees drawing income from a portfolio, business owners deploying proceeds from a sale, and investors with significant holdings across multiple asset classes often land here. The trade-off is trust. You’re relying on someone else’s judgment and reviewing results after the fact rather than approving decisions beforehand.
Non-discretionary accounts suit investors who want to stay closely involved in every decision, who hold strong views about specific positions, or who are still building confidence in an adviser before granting broader authority. The time commitment is real. You need to be responsive when your adviser reaches out with recommendations, or the account essentially sits idle. Investors with simpler portfolios or infrequent trading often find this model sufficient without feeling burdened.
One approach that works for some people is starting non-discretionary to develop a working relationship and track record with an adviser, then converting to discretionary once confidence is there. Most firms can make the switch with updated paperwork and a new limited power of attorney. Moving back the other way is just as straightforward if you decide you want more direct involvement.