What Is an OSJ? The Office of Supervisory Jurisdiction, Explained for Advisors

The short answer: An OSJ, an office of supervisory jurisdiction, is an office of a FINRA member firm where supervisory or higher-risk functions take place, such as approving new accounts, reviewing customer orders or supervising people at other branch offices. FINRA Rule 3110 requires every OSJ to have a registered principal designated to it and to be inspected at least annually.

In the independent channel the term also names a business model. Many advisors at independent broker-dealers affiliate through an OSJ that supervises them and often provides services, and pay for it through an override on their production. Understanding both meanings, the regulatory one and the commercial one, is what makes the choice legible.

What the rule says

FINRA Rule 3110(f)(1) defines an OSJ by function. An office is an OSJ if any of these take place there:

1. Order execution or market making.
2. Structuring public offerings or private placements.
3. Maintaining custody of customer funds or securities.
4. Final acceptance, or approval, of new accounts on behalf of the firm.
5. Review and endorsement of customer orders.
6. Final approval of retail communications.
7. Responsibility for supervising the activities of associated persons at one or more other branch offices.

Two requirements follow. Under Rule 3110(a)(4), each OSJ must have one or more appropriately registered principals designated to it. And under Rule 3110(c), OSJs must be inspected at least annually.

OSJ, branch office and non-branch location

The non-branch exclusions are specific. They include back-office sites with no sales activity, a primary residence meeting stated conditions, temporary locations used for fewer than 30 business days a year, offices of convenience used by appointment, and locations mainly engaged in non-securities business with no more than 25 securities transactions a year. A location that supervises one or more non-branch locations becomes a supervisory branch office.

Since June 1, 2024, supervision can also be done from home. FINRA's residential supervisory location lets a private residence where supervision is performed be treated as a non-branch location, inspected on the presumptive three-year cycle instead of the annual one, if its conditions are met, among them that no original books or records are kept there and the supervisor has at least a year of experience.

FINRA does not publish a count of OSJs. Its 2026 Industry Snapshot counts 146,826 registered branch offices at the end of 2025, of which OSJs are a subset.

Who can run one

An OSJ needs a registered principal. For a general securities business that is the Series 24, the General Securities Principal exam, which qualifies a principal to supervise the firm's securities business. Its prerequisites are the SIE plus a representative exam such as the Series 7.

The rest is the job itself: written supervisory procedures, reviews of accounts, trades and communications for every advisor supervised, and the annual inspection. For an advisor considering becoming their own OSJ, that work is the price of keeping the override.

How OSJs are paid

In the independent channel, an OSJ is usually paid through an override: a share of the production of the advisors it supervises and serves, on top of what the broker-dealer keeps. What the override buys varies enormously, and so does its size.

Financial Planning reported in 2023 on Private Advisor Group, an OSJ affiliated with LPL, describing overrides from the mid-single digits up to 60% to 65% for advisors receiving real estate, payroll and administrative services in a wirehouse-like setup, with LPL compensating the OSJ for supervising the teams. An older benchmark, from WealthManagement.com in 2010, put a regular OSJ's supervision charge at four to 10 percent of gross revenue. Treat both as illustrations: the terms that matter are the ones in the agreement in front of you, and they depend on what the OSJ actually does for you.

The largest of these offices are sometimes called super OSJs. WealthManagement.com defined one in 2010 as an extra-large office of supervisory jurisdiction, or independent broker-dealer branch, that both supervises and provides consulting and business services to other independent advisors for a fee. Some are large firms in their own right: Financial Planning reported in 2025 that Private Advisor Group, a hybrid RIA as well as an OSJ, had more than $41 billion in assets and nearly 800 advisors when LPL took a minority stake.

Why advisors join an OSJ

An advisor moving to an independent broker-dealer, or already at one, has three broad choices for supervision:

• Affiliate directly with the broker-dealer. The broker-dealer supervises through its own offices. The advisor keeps the full payout the broker-dealer offers and does more of the practice's work alone.
• Join an OSJ. Supervision is local, often with services, staff, technology and a peer group attached, paid for through the override.
• Become an OSJ. The advisor holds the principal registration and supervises their own office, and sometimes others, keeping the override and taking on the work and the inspection cycle.

The decision is a cost comparison with a service question inside it. Price the override against what the practice would otherwise pay for the same services, or do itself, and read what happens to the book and the staff if you later leave the OSJ. The IBD ceiling sets out how the costs stack up as a practice grows, and W-2 vs 1099 covers the contractor model the whole arrangement sits on. Advisors weighing an OSJ against a move to their own RIA should also read what a dually registered advisor is, because the registrations change with the structure.

Advisors who want an OSJ offer, a direct affiliation and an RIA priced side by side, confidentially, are welcome to request an introduction.