The difference between discretionary and non-discretionary accounts comes down to one question: who pulls the trigger on each trade. In a discretionary account, your advisor buys and sells for you without asking first. In a non-discretionary account, nothing happens until you say yes. That single distinction ripples out into how you’re billed, what legal duty your advisor owes you, how much paperwork you sign, and even what your tax bill looks like at year’s end.
Who Makes the Trade Decision
A discretionary account gives your advisor authority to choose which securities to buy or sell, how many shares, and when to execute. No phone call, no email approval. If the market moves at 2 p.m. on a Tuesday, your advisor can act while you’re in a meeting. The appeal is speed and coordinated portfolio management; the cost is control.
A non-discretionary account puts the advisor in a consultant role. They research, analyze, and recommend, but every trade requires your case-by-case approval, including the specific security, the quantity, and the price. If your advisor can’t reach you, the trade doesn’t happen. You keep full control, and you also carry full responsibility for decisions that don’t work out. A time-sensitive opportunity can slip away while you’re reviewing the details.
Any trade an advisor places without your explicit authorization in a non-discretionary account is an unauthorized transaction, exposing both the advisor and the firm to legal liability and FINRA sanctions.1FINRA. FINRA Rule 3260 – Discretionary Accounts
What Legal Duty Your Advisor Owes You
The standard of care your advisor is held to depends on whether they’re a registered investment adviser (RIA) or a broker-dealer, and this matters more than most investors realize.
An RIA operating a discretionary account owes you a fiduciary duty under the Investment Advisers Act of 1940. That means a duty of care and a duty of loyalty: your advisor must act in your best financial interest, not their own, and must eliminate or fully disclose conflicts of interest.2Securities and Exchange Commission. Commission Interpretation Regarding Standard of Conduct for Investment Advisers The Act’s anti-fraud provisions make it unlawful for an adviser to employ any scheme to defraud a client or engage in any practice that operates as a deceit.3Office of the Law Revision Counsel. 15 U.S. Code 80b-6 – Prohibited Transactions by Investment Advisers
Broker-dealers are held to a different standard called Regulation Best Interest (Reg BI). When making a recommendation to a retail customer, a broker-dealer must act in the customer’s best interest without placing their own financial interest ahead of the customer’s.4eCFR. 17 CFR 240.15l-1 – Regulation Best Interest Reg BI includes disclosure, care, and conflict-of-interest obligations, but it applies at the moment a recommendation is made, not as an ongoing duty the way fiduciary obligations work for RIAs. In a non-discretionary account, a broker-dealer must ensure each recommendation is suitable and in your best interest, but the obligation is narrower than the continuous fiduciary duty an RIA carries.
Someone managing your discretionary account may call themselves a “financial advisor,” but whether they owe you a fiduciary duty or a best-interest standard depends entirely on their registration status. Ask directly, and confirm whether you’re working with an RIA or a broker-dealer before signing anything.
How the Fees Compare
The two account types tend to use fundamentally different compensation models, and those models create different incentive structures.
Discretionary accounts typically charge an assets-under-management (AUM) fee: a percentage of your total portfolio value, billed annually or quarterly. The industry standard hovers around 1% for portfolios under $1 million, with the percentage declining as balances grow. Because the advisor’s compensation rises and falls with your portfolio value, their financial incentive generally aligns with yours.
Non-discretionary accounts are more commonly commission-based. Your advisor earns a fee each time a trade executes, regardless of whether the investment performs well afterward. The inherent risk is that this creates an incentive to recommend more frequent transactions. Reg BI’s care obligation is designed to mitigate this by requiring that each recommendation be in your best interest, but the structural tension between trading volume and compensation doesn’t disappear.4eCFR. 17 CFR 240.15l-1 – Regulation Best Interest
Neither model is inherently better. An AUM fee on a large, relatively stable portfolio can cost you thousands per year for minimal trading activity. Commissions on an account you rarely trade might total far less. The right structure depends on how active the account actually is.
Tax Consequences to Watch
Frequent trading in a discretionary account can produce a significantly higher tax bill than a buy-and-hold approach, and this is a cost many investors miss when comparing the two.
The threshold that matters is one year. Investments held for a year or less produce short-term capital gains, taxed at ordinary income rates of 10% to 37% depending on your bracket. Investments held longer than one year qualify for long-term capital gains rates of 0%, 15%, or 20%.5IRS. Topic No. 409 – Capital Gains and Losses When a discretionary advisor actively rebalances, many trades may trigger short-term gains, and the gap between 15% and 37% on a sizable gain is real money.
The wash sale rule adds another wrinkle. If your advisor sells a security at a loss and repurchases a substantially identical security within 30 days before or after the sale, you cannot deduct that loss.6Office of the Law Revision Counsel. 26 U.S. Code 1091 – Loss From Wash Sales of Stock or Securities In a discretionary account, an advisor may inadvertently trigger wash sales during routine rebalancing. Ask how tax efficiency factors into the strategy, and review year-end tax documents carefully to catch disallowed losses before filing.
Non-discretionary accounts largely avoid this problem by default. Because you approve every trade individually, you control the holding period and can time sales to qualify for long-term rates. The trade-off is that tax-conscious timing may mean missing short-term opportunities.
The Written Authorization You Sign
Before any advisor can trade independently in your account, you sign a written authorization, typically a Limited Power of Attorney (LPOA) or a limited trading authorization form. FINRA Rule 3260 makes clear that oral authorization is not enough: the customer must provide prior written authorization naming specific individuals who may exercise discretion, and the firm must accept the account in writing.1FINRA. FINRA Rule 3260 – Discretionary Accounts The same rule prohibits transactions that are excessive in size or frequency relative to your financial resources, a practice called churning.
The critical distinction in these forms is between limited and full power. A limited grant restricts the advisor to executing trades. It does not allow them to withdraw funds, transfer assets to outside accounts, or change beneficiaries. Those actions remain exclusively yours. Read the form carefully; the checkboxes and language vary by firm, and granting broader authority than you intend is easier to prevent than to undo.
Once processed, the firm must promptly approve each discretionary order in writing and review discretionary accounts at regular intervals to catch excessive or unsuitable trading.1FINRA. FINRA Rule 3260 – Discretionary Accounts
Revoking Discretionary Authority
You can revoke your advisor’s discretionary trading authority at any time by submitting written notice to the brokerage firm. Once the firm receives and processes the revocation, the advisor loses the ability to place trades without your approval going forward, though transactions already initiated before the revocation remain valid.
A phone call isn’t enough. Send the revocation in writing even if you’ve already told your advisor verbally, and confirm receipt with the firm’s compliance department rather than relying on your advisor to process the change. If you’re switching from discretionary to non-discretionary, expect your account to functionally pause until you begin approving trades individually.
How You Monitor What’s Happening
Whichever account type you hold, your brokerage firm owes you documentation.
SEC Rule 10b-10 requires broker-dealers to send you a written confirmation at or before the completion of every transaction, including the trade date and time, the identity of the security, the price, the number of shares, and any commissions or fees.7eCFR. 17 CFR 240.10b-10 – Confirmation of Transactions These are your first line of defense for catching errors or unauthorized trades, especially in a discretionary account where you didn’t approve the activity in advance.
FINRA Rule 2231 separately requires firms to send account statements at least once per calendar quarter to any customer whose account had a security position, balance, or activity during that period. Each statement must include a notice advising you to report inaccuracies promptly, and the rule recommends following up any oral complaint in writing to protect your rights.8FINRA. FINRA Rule 2231 – Customer Account Statements
For discretionary accounts, reviewing these documents matters more, because your advisor may have executed dozens of trades you never discussed. Compare each confirmation against your investment policy statement or stated goals. If you see a pattern that doesn’t match your risk tolerance or looks excessive, contact the firm’s compliance department in writing. An organized file of confirmations and statements also provides essential documentation for tax reporting and, if it comes to it, for filing a FINRA arbitration claim.
Which One Should You Choose
The choice comes down to how involved you want to be and how much you trust your advisor’s independent judgment.
A discretionary account makes sense if you lack the time or expertise to evaluate individual trades, if your portfolio requires frequent rebalancing, or if you’ve found an advisor with a track record whose investment philosophy matches yours. The efficiency gains are real: your advisor can act on short-lived opportunities and coordinate adjustments across your holdings without waiting for a phone call. The cost is giving up control and relying on regulatory protections plus your own monitoring to keep the advisor honest.
A non-discretionary account fits investors who want to stay hands-on, who trade infrequently, or who simply aren’t comfortable letting someone else spend their money without asking. The approval requirement forces you to stay engaged, which some people find educational and others find exhausting. If your advisor recommends a trade and you’re unavailable for three days, that opportunity may be gone by the time you respond.
Many investors start non-discretionary and switch to discretionary after building trust with a specific advisor. Neither arrangement is permanent, and either can be changed with written notice to your brokerage firm.