Moonlighting Clause — Can Your Employer Stop You from Freelancing?

You're considering a job offer, but you also have freelance clients you want to keep. Or you're building a side business. Or you teach workshops. Or you consult on evenings and weekends.

Before you sign, check whether the offer letter or employment agreement contains a moonlighting clause — also called an outside employment clause or a conflict of interest policy. These provisions restrict your ability to do other paid work while employed.

They're common. They're often overlooked. And they're frequently more enforceable than employees expect.

What a Moonlighting Clause Typically Says

The narrow version:

"Employee agrees not to engage in outside employment or consulting that competes with Company or conflicts with Employee's duties."

This version only restricts competing work or work that creates a conflict. If your side work is completely unrelated to your employer's business, this clause likely doesn't reach it.

The broad version:

"Employee agrees not to engage in any outside employment, consulting, or business activity without prior written approval from the Company."

This requires explicit employer approval for any outside paid work — including completely unrelated work. Taking on a freelance web design client while working as a data scientist? Under this version, you'd need approval.

Even broader:

"Employee agrees to devote their full professional time, energy, and attention exclusively to the performance of their duties for Company."

This "full-time devotion" clause is the most aggressive version. It's ambiguous enough to cover almost anything — and courts have interpreted it broadly in some jurisdictions.

When Moonlighting Clauses Are Enforceable

Courts are generally more willing to enforce moonlighting clauses when:

There's a genuine conflict of interest. If you're doing freelance work for your employer's direct competitor, or working for a client your employer serves, there's a legitimate business interest in preventing that conflict.

The restriction is specific and reasonable. A clause that prohibits work "in the same industry" is more defensible than one that prohibits "any outside employment whatsoever."

The employee is in a sensitive role. Executives, employees with access to trade secrets, and employees in client-facing roles face higher scrutiny. A moonlighting clause for a software engineer is scrutinized differently than one for a VP of Sales.

Courts are more skeptical of moonlighting clauses when:

They're overbroad. A blanket prohibition on all outside paid work — including completely unrelated freelancing — may be found unreasonable in states that apply a reasonableness standard to post-employment restrictions.

The employee isn't competing. A graphic designer working for a tech company who freelances for a bakery is not in any meaningful conflict with their employer.

The employer's stated concern is pretextual. If an employer uses a moonlighting clause to retaliate against an employee for protected activity, the clause doesn't provide cover.

State Law Considerations

California provides the strongest protections here. Under California Labor Code §96(k), the state can assert employees' legal rights when employers try to control off-duty conduct not connected to the job. California courts are skeptical of restrictions on non-competing outside work, particularly for hourly employees.

Most other states give employers wider latitude to restrict outside employment through contract. If you're in at-will employment and you violate an outside employment clause, you can be terminated — even if the work wasn't actually competing with your employer.

How to Negotiate a Moonlighting Carve-Out

Identify your existing clients and work. List them before signing. Ask for a "prior work" exhibit similar to the prior inventions list in an IP assignment agreement. This grandfathers your current clients explicitly.

Propose specific carve-out language. Something like: "The foregoing restriction does not apply to outside employment or consulting that does not compete with Company's business, does not use Company's confidential information, and does not interfere with Employee's performance of their duties."

Get approval pre-emptively. If the clause requires employer approval for outside work, ask for written approval for your existing clients at the time of signing. Get this in writing. An email from the hiring manager saying "no problem" isn't enough — it should be an amendment to the employment agreement or an attached exhibit.

Negotiate the definition of "compete." If your employer's concern is competitive work, ask them to specify which companies or industries are off-limits. A named list is more defensible for both sides than a vague reference to "competing businesses."

Ask about the approval process. For clauses requiring written approval, ask how the process works: who approves, what standards they apply, and whether approval can be withdrawn arbitrarily. An "approval required" clause with no clear process effectively gives the employer unlimited veto power over your outside work.

Have an employment contract with outside employment restrictions? Upload it to KlausClause to see exactly what you're agreeing to and whether your specific freelance work would be covered.

This article is for informational purposes only and does not constitute legal advice.