Moonlighting means working extra shifts outside your main job, usually paid 1099 at a higher hourly rate. For a W2 CRNA it can add meaningful income, and it comes with four traps: your primary contract, malpractice gaps, taxes, and licensing.
None of the traps is hard to avoid. All of them are expensive to hit. Check them in this order before you take the first shift.
Key points
- Read your primary contract for moonlighting and non-compete clauses first.
- Employer malpractice almost never covers outside shifts.
- 1099 income needs quarterly estimates or higher W2 withholding.
- A multistate RN license does not grant out-of-state APRN practice.
Where CRNAs moonlight
Common side settings include GI endoscopy centers, dental and oral surgery offices, plastic surgery offices, ambulatory surgery centers needing weekend or vacation coverage, and rural hospitals buying call coverage. Office-based work is a world of its own; see /office-based-anesthesia/.
Most of this work is 1099. Some is per-diem W2 through a second employer, and some flows through agencies, covered at /crna-staffing-agencies/. Short out-of-town stints shade into locum work; see /locum-crna/.
Step 1: check your primary contract first
Read your employment agreement before you say yes to anyone. Look for four things.
- Outside work or moonlighting clauses. Some contracts require written approval for outside clinical work. Get the approval in writing.
- Non-compete and non-solicitation language. A radius clause can make the surgery center across town off limits while you are still employed, not only after you leave. See /crna-non-compete/.
- Scheduling and call obligations. Fatigue policies or minimum rest language can restrict back-to-back commitments.
- Benefits interactions. Disability and malpractice coverage from your employer are usually tied to work for that employer only.
If the contract is silent, silence is better than a prohibition, and a short written acknowledgment from your chief or HR is better still.
Step 2: close the malpractice gaps
Your employer's malpractice policy almost certainly covers you only while working for that employer. Moonlighting shifts need their own coverage, and the gaps hide in the details.
Confirm who covers the side work. Some facilities and groups cover their 1099 CRNAs, many do not. Get the certificate of insurance, and confirm you are a named insured, with the limits stated.
Occurrence vs claims-made. An occurrence policy covers events that happened while the policy was active, forever. A claims-made policy covers only claims filed while the policy is active, so when it ends you need tail coverage to stay protected for past cases. If a side gig hands you a claims-made policy, ask in writing who buys the tail.
Slot and shared-limit arrangements. Some facilities cover contractors under a shared policy where multiple providers draw on the same limits. Understand whether a bad year at the facility could exhaust the limits protecting you. A personal policy avoids that question.
Full detail at /crna-malpractice-insurance/. Many moonlighting CRNAs simply carry their own policy and treat it as a cost of the higher 1099 rate.
Step 3: handle the taxes
1099 income arrives with nothing withheld. You owe income tax plus self-employment tax, which covers both halves of Social Security and Medicare, a combined 15.3 percent on net self-employment earnings up to the Social Security wage base, with the Medicare portion continuing above it.
The IRS expects tax as you earn. If your W2 withholding will not cover the extra liability, make quarterly estimated payments or raise your W2 withholding to compensate. Track business expenses, because legitimate costs of the side work, such as your own malpractice premium and licensure costs, reduce the taxable profit.
Side income can also open a solo retirement plan, like a SEP IRA or solo 401(k), on the 1099 earnings. Rules interact with your W2 plan limits. This is general information, not tax advice, so run your plan past a CPA before the first quarterly deadline. Estimate the net with the /crna-take-home-pay/ calculator and read /1099-crna/ for the full independent setup.
Step 4: licensing and credentialing
Your APRN and CRNA authority comes from each state where you practice. The Nurse Licensure Compact covers RN and LPN licenses only, so a multistate RN license does not grant APRN practice across state lines, and the separate APRN Compact is not yet in effect. If the side work is out of state, you need that state's APRN license. See /nursing-compact-states/ and /aprn-compact/.
In state, expect facility credentialing at each new site, often taking weeks, plus payer enrollment if you bill under your own number. Keep your DEA registration and state controlled substance registrations aligned with where you actually work.
How much moonlighting is worth it?
Price it after taxes and costs, not at the headline rate. A 1099 rate carries self-employment tax, your malpractice, and no benefits, so compare it to your W2 rate with the /crna-1099-vs-w2-calculator/.
Do I need an LLC to moonlight?
No. Many CRNAs moonlight as sole proprietors. An entity can help with organization and some tax elections, and it does not shield you from your own malpractice. Ask a CPA and an attorney what fits your volume.
Will moonlighting violate my non-compete?
It can, if the clause covers concurrent outside work within its scope. Read the clause, and get a written waiver if the side facility sits inside the restricted zone.
This page is general information, not legal, tax, or insurance advice. Confirm specifics with a CPA and an attorney in your state.