Moonlighting Policy: What Employers Can Legally Restrict

A designer on my team mentioned a client deadline in a standup, and the client was not ours. He had been freelancing for eight months. It had never occurred to him to say anything, because nobody had ever told him it mattered. My first reaction was that he had done something wrong. My second, about an hour later, was that we had never written anything down.

That is where most moonlighting problems begin. Not with disloyalty, with silence. The employer has no policy, the employee has no reason to volunteer the information, and the first real conversation happens after something has already gone sideways: a missed shift, a shared customer, a laptop holding somebody else’s files.

A moonlighting policy is worth having and worth writing narrowly. Off-duty time belongs to the employee in a way most handbooks quietly assume it does not, several states say so by statute, and the blanket ban that feels safest is the version most likely to fail at the moment you need it.

This guide covers what you can actually restrict, the state laws that limit you, the disclosure process that replaces a ban, and the overtime bill that arrives when the second job is with you. I build the people and records tooling for businesses without an HR department at FirstHR. This is general information, not legal advice.

What a Moonlighting Policy Is

A moonlighting policy is the written rule governing whether, and on what terms, your employees may hold outside employment while working for you. The useful ones are not bans. They are disclosure requirements attached to a short list of criteria you will apply when something is disclosed.

The policy normally sits in the handbook, next to the conflict of interest and confidentiality rules rather than off on its own.

What moonlighting means

Moonlighting is holding a second paid job alongside a main one, and the word comes from work done after dark once the day job finished. In a handbook it should cover more than a second W-2 role: independent contracting, freelance work, gig platform shifts, and a business the employee runs themselves all raise the same questions.

An employee is free to sell their time to two buyers. Outside work becomes your problem only through the duty of loyalty they already owe, a term in their contract, or a policy like this one, and without one of those you have very little to point at.

One boundary worth setting early. This policy is about outside work, not about off-duty conduct generally. Social media posts, political activity, and lawful behavior on somebody’s own time raise related but different questions, and mixing them into one clause produces a policy that overreaches in both directions.

Is moonlighting illegal?

No. For a private-sector employee, neither federal law nor any state law makes holding a second job unlawful in itself, and simply having one creates no legal exposure for either of you. What can be unlawful is something that happens inside the second job, and that list is shorter than most handbooks assume.

Three things move it from lawful to actionable. Competing with you, soliciting your customers, or diverting an opportunity while still on your payroll breaches the duty of loyalty employees owe in most states. Carrying your pricing, code, or client data into the second role is a trade secrets problem. The third is a commercial driver pushed past federal duty limits, which lands on your business.

A contract term is a different matter. A full-time-and-attention clause commits the employee to giving you their whole working time and attention. Somebody who signed one and took a second job anyway has breached a contract, not a law, and your remedy sits inside the employment relationship.

Public employers are the genuine exception to all of this, since government ethics rules routinely restrict outside work directly. For private employers, the question that costs money is the reverse one. Acting on a second job, by refusing it or by ending somebody’s employment over it, is where state statutes actually bite, and the section below on state laws is where that answer lives.

The Default: Off-Duty Time Is Theirs

Start from the position that what an employee does after hours is their own business, because that is where the law starts. You are buying their time during scheduled hours. You are not buying the rest of the week, and a policy written as though you were will read badly to everyone who has to apply it.

The counterweight is at-will employment. In most states either side can end the relationship at any time for any reason that is not unlawful, which does give employers real room to set conditions. That room is narrower than it looks once state off-duty statutes and federal labor law are in the picture.

The practical consequence is about tone as much as law. If your policy treats outside work as presumptive misconduct, the people with second jobs simply will not tell you, and the ones who do will be the cautious employees who were never going to cause a problem. You end up with information about exactly the wrong population.

State Laws That Limit What You Can Restrict

A number of states make it unlawful to take adverse action against an employee, such as firing them, for lawful off-duty activity, and one addresses second jobs by name. These statutes are the reason a nationwide blanket ban is a bad idea even for a business operating in a single state, because remote hiring quietly puts you under other states’ rules.

Washington is the most direct. Its non-competition statute provides that an employer may not restrict, restrain, or prohibit an employee earning less than twice the applicable state minimum hourly wage from having an additional job, working for another employer, working as an independent contractor, or being self-employed (RCW 49.62.070).

Washington Labor and Industries puts the state minimum wage at $17.13 an hour from January 1, 2026, so the protection covers employees earning under $34.26 an hour. The exceptions are narrow: services that raise safety issues for the employee, coworkers, or the public, or that interfere with the employer’s reasonable and normal scheduling expectations.

Two details are easy to miss. New York’s statute looks broad, but it defines recreational activity as lawful leisure for which the employee receives no compensation (Labor Law 201-d). A paid second job therefore falls outside it, although the statute’s protections for consumable products and political activity still apply.

Colorado’s wording is the second detail. Its exception for a conflict of interest is written to cover the appearance of a conflict as well as an actual one, which is a genuinely useful phrase for an employer that documents its reasoning at the time.

The Business Interests That Do Justify a Restriction

Five interests reliably support a restriction on outside work: conflict of interest, use of company time or equipment, confidentiality, fitness for duty in safety-sensitive roles, and direct competition during employment. Everything else in this area is a preference wearing a business costume.

The competition point deserves a note, because employers routinely reach for the wrong instrument. Employees owe a common law duty of loyalty while employed in most states, which already prevents competing, diverting opportunities, and soliciting your customers or colleagues for a rival venture. You do not need a signed agreement to have that.

What happens after somebody leaves is a different legal question entirely. The federal rule banning most non-competes never took effect: it was set aside by a federal court in 2024, the Federal Trade Commission dismissed its appeals in September 2025, and the rule was formally removed from the Code of Federal Regulations in February 2026. State law now governs, and it varies enormously.

Why a Blanket Ban Invites Trouble

A blanket ban on outside employment fails in four distinct ways, and state law is only the most obvious of them. In Washington the ban is void for a large share of the workforce, and in Colorado, North Dakota, and California it collides with statutes protecting lawful off-duty activity unless you can tie the restriction to a real business interest for that specific employee.

The second failure is federal. Section 7 of the National Labor Relations Act protects employees acting together about pay and working conditions, known as protected concerted activity, and it applies to businesses that have never seen a union. A rule requiring employees to devote their full time and attention to the company, read broadly, can reach conversations about earning more elsewhere.

The National Labor Relations Board’s standard for judging work rules like that has shifted with the board’s membership more than once. Treat the question as unsettled in either direction, and avoid writing the most exposed version of the rule.

The third failure is informational, and in practice it is the one that costs small employers the most. A ban guarantees non-disclosure. People who need the income take the second job anyway, tell nobody, and you lose every chance to spot the actual conflict early.

The fourth failure is enforcement. A rule nobody follows gets enforced selectively, and selective enforcement of a rule about people’s private lives is how an ordinary policy becomes a discrimination claim.

There is a hiring cost too. A visible prohibition on outside work reads to candidates as a signal about how the business treats people, and it is a strange signal to send when your own workplace policies are otherwise trying to say the opposite.

The Disclosure and Review Approach

The version that works is disclosure and review: employees tell you about outside work in advance, you assess it against criteria written in the policy, and you answer with approved, approved with conditions, or declined with the reason named. It gets you the same protection as a ban with far less legal exposure.

It also changes what the policy is for. A ban is a statement about loyalty. A disclosure rule is a request for information, which is a much easier thing to defend and a much easier thing to ask a manager to administer consistently. Written down, a disclosure-based policy has eight parts.

The review itself should be quick and boring. Most disclosures are a weekend shift somewhere unrelated, and the whole assessment takes a few minutes once the criteria are written down.

One sheet of paper holds both halves. The employee fills in the first part before starting the outside work, the reviewer completes the second part and signs it, and the whole thing goes in the employee file.

Exempt and Non-Exempt Staff Are Different Problems

For exempt employees, the ones federal overtime rules do not cover, the question is availability, judgment, and conflict. For non-exempt employees, who are owed overtime, it is hours, fatigue, and scheduling. Writing one paragraph that covers both is how policies end up saying nothing useful to either group.

Exempt staff have no ceiling on hours under federal law, so the clock argument is not available to you. What is available is the observation that senior roles carry more confidential information, more decision authority, and more expectation of being reachable during business hours. Those are real interests, and they are the ones to name.

One trap runs the other way. Paying an exempt employee extra for a second role at your company is permitted under federal regulation, in any form, as long as the guaranteed weekly salary on a salary basis is still paid (29 CFR 541.604).

The risk is not the money. It is that a large enough second role changes what the person primarily does, and the exemption turns on that primary duty.

The Wage and Hour Trap: A Second Job for You

If a non-exempt employee works a second job for your business, every hour counts toward one workweek and overtime is owed on the total, at a blended rate. This is the single most expensive mistake in the whole subject, and it is almost always made in good faith.

The default calculation is a weighted average. Federal regulation provides that where an employee works at two or more rates in a workweek, total earnings from all rates are divided by total hours worked at all jobs to produce the regular rate, the hourly figure overtime is calculated from (29 CFR 778.115).

Overtime hours then earn an additional half of that blended rate on top of the straight-time already paid. Here is how that works out for one week split across two jobs.

There is a statutory alternative. With an agreement or understanding reached before the work is performed, you may pay overtime at one and a half times the rate applicable to the type of work performed during the overtime hours (29 CFR 778.419). It has to be genuine and it has to come first. Retrofitting it after a payroll error is not a fix.

Three related traps sit next to this one. The first is joint employment. Two entities you own count as a single employer for overtime purposes when they are sufficiently associated in employing the same person, for example by coordinating that person’s schedule and setting the pay together, and the hours then combine across both.

Combined hours are exactly how owners of two businesses get caught. The Department of Labor set out the association test in its April 2026 proposed rule on joint employer status, which would restore regulatory guidance the agency has not had since 2021.

The second trap is benefits. Companies with a common owner are generally combined and treated as one employer when working out applicable large employer status, the size test in the Affordable Care Act’s employer shared responsibility rules, per the Internal Revenue Service. Two entities that each look small alone can cross the threshold together.

The third trap is unpaid help. Your own employees cannot volunteer hours to your for-profit business, so the informal favor that turns into a recurring unpaid shift accrues as unpaid wages, quietly, for as long as nobody adds it up.

Safety-Sensitive Roles and Fatigue

In safety-sensitive roles, fatigue from a second job is a legitimate business reason, and in some of them it is a legal obligation you already carry. This is the one place where a restriction on outside work can be flatly stated rather than negotiated, provided you attach it to the roles it belongs to.

Commercial driving is the clearest illustration. Federal hours-of-service rules define on-duty time to include performing any compensated work for a person who is not a motor carrier (49 CFR 395.2).

A driver’s shift at a warehouse for an unrelated employer therefore counts against the same duty limits your business is responsible for tracking. Here the second job is not a matter of preference at all: it changes what the driver may lawfully do for you the next day.

Similar logic runs through patient care, machine operation, electrical work, and anything covered by a state rest-period or mandatory-overtime rule. The clause to write says the employee must be fit for duty at the start of every shift, must observe the stated minimum rest interval, and must report an outside commitment that makes either impossible.

Attach that clause to the role rather than the company. A fatigue rule applied to a bookkeeper reads as pretext, and pretext contaminates the rule in the roles where it is genuine.

Two cautions go with it. The first is to avoid using fatigue as a general-purpose objection: if you cannot name the hazard and the rest interval, what you have is a preference, not a fatigue policy.

The second caution: when somebody does report a scheduling collision, deal with the schedule before dealing with discipline. A worker who tells you they are too tired to run the forklift safely has done exactly what the policy asked of them.

Enforcing It Without Creating a Claim

The fastest way to turn a moonlighting policy into a discrimination claim is to apply it to some people and not others. The policy text is rarely the problem. The pattern of who was asked, who was approved, and who was refused is almost always the problem.

Uneven application happens without anybody deciding to be unfair. A manager waves through the second job of somebody they like and escalates the identical arrangement for somebody they find difficult. Nobody sees it because the decisions sit in separate email threads. The written record is what makes the pattern visible to you before it becomes visible to somebody else.

One row per disclosure, filled in on the day you answer it. The second sheet is the annual read, which is a short job once the first sheet exists and an impossible one when it does not.

Watch three specific asymmetries. Whether part-time staff face more scrutiny than full-time staff for the same arrangement. Whether the criteria get applied more strictly to caregivers, who often need the second income and the flexible hours. And whether approvals track seniority in a way you could not justify if asked to explain it.

When something does go wrong, keep it in your ordinary process. Establish the facts before drawing a conclusion, using the approach in the guide to workplace investigations, and if discipline follows, document it the same way you would document any other policy breach with a written warning. A special process invented for this policy is the thing a lawyer will ask about first.

Where Small Employers Get This Wrong

Six patterns, and none of them starts with bad intent. Copying a full-time-and-attention clause out of an executive contract into the general handbook is the most common. Those clauses were drafted for a specific senior role with specific information access, and applied to everybody they become both unenforceable and slightly insulting.

The second is writing the policy in the language of loyalty. Words like commitment and dedication turn a management question into a moral one, and a moral framing is precisely what produces uneven enforcement later.

The third is having no response deadline. A disclosure requirement that never gets an answer teaches employees that disclosure is a trap, and the next disclosure does not come.

The fourth is treating every disclosure as a conflict. If a weekend shift at an unrelated business triggers the same review as consulting for your biggest supplier, the process is not distinguishing anything and managers stop taking it seriously.

The fifth is forgetting that remote hires bring their state’s law with them: a policy that works where you are incorporated may be void for an employee two time zones away.

The last one is the expensive one: running a second role for the same person inside your own business without combining the hours. It shows up in restaurants, in property management, and anywhere an owner has more than one entity, and it is discovered during an audit or a claim rather than during a review. Fix it in payroll configuration before the first pay period rather than in a settlement afterward.

If your handbook carries a blanket ban, or says nothing about outside work at all, start there. Replace the ban, or fill the gap, with a disclosure requirement, the five review criteria, a named reviewer with a response deadline, and a log you read once a year.

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