The most consequential question in per diem nursing is not the rate. It is who the nurse legally works for, because that single answer determines payroll taxes, overtime, insurance, injury coverage and who is liable when something goes wrong.
Employee without benefits is still employee
Most per diem nurses are employees: either of the facility that keeps them on its own roster, or of the agency that places them. Payroll taxes are withheld, the employer pays its half of Social Security and Medicare, wage and hour law applies to the shifts worked, workers' compensation covers injuries on duty, and the employer carries liability insurance.
Having no health cover or paid time off does not change any of that. Benefits eligibility and employment status are separate questions, and conflating them is how nurses end up assuming they have no protections when they do.
What changes on an independent contractor arrangement
Some engagements, particularly through app-based platforms, treat the nurse as an independent contractor. The differences are substantial.
The nurse pays both halves of Social Security and Medicare as self-employment tax, 15.3 percent of net earnings rather than the 7.65 percent withheld from an employee's wage. Half of it is deductible in computing income tax, which softens the blow without removing it.
No tax is withheld. Income tax and self-employment tax become the nurse's own responsibility, paid in quarterly estimated instalments, and a first year without that habit commonly ends in a bill and an underpayment penalty. The year-end document is a 1099 rather than a W-2.
Federal minimum wage and overtime protections do not apply.
Workers' compensation generally does not cover an injury on shift, and unemployment insurance does not accrue.
Professional liability cover is the nurse's own to buy, and should be confirmed rather than assumed.
How classification is actually decided
It is decided by how the work is controlled, not by what the agreement calls it or which tax form arrives. Federal agencies apply multi-factor tests looking at the degree of control over how, when and where the work is done, whether the worker can realise a profit or loss, investment in equipment, the permanence of the relationship, the skill and initiative involved, and how integral the work is to the business. The federal rule on this has been rewritten more than once in recent years, and the underlying question has not changed with it.
Several states apply their own, stricter test. California presumes a worker is an employee unless the hiring entity shows all three of: freedom from control in fact and under the contract, work outside the usual course of the hiring entity's business, and an independently established trade of the same kind. Supplying nurses is the usual course of business for a nurse staffing company, which is why the second limb is where these cases are fought.
A nurse who is told which patients to take, works under the facility's policies, uses the facility's equipment and cannot subcontract the shift looks like an employee under most of these tests regardless of the paperwork.
This is not theoretical. Clipboard Health paid $2.2 million in 2021 to settle claims by former workers who said they had been misclassified and denied overtime and breaks, and misclassification suits have been brought against other health care staffing platforms in several states. Legislatures have been asked to write app-dispatched health care workers into law as contractors, with mixed results. See per diem shift apps.
The 30-hour threshold
Hours interact with benefits eligibility in a way that surprises both sides. Under the federal health law, a full-time employee of a large employer is one working an average of at least 30 hours of service a week, or 130 hours a month, measured either month by month or across a longer look-back period.
A per diem nurse who consistently picks up that much work can therefore cross into the group the employer must offer coverage to. Whether that is happening is a question worth asking directly rather than assuming in either direction, and it is one reason some employers cap per diem hours.
Agencies, registries and platforms are increasingly regulated
Several states now require businesses supplying temporary health care personnel to register, file their contracts and report their rates. New York's law, in force since August 2023, applies expressly to nursing registries and online platforms as well as conventional agencies, requires a $1,000 annual registration fee and quarterly reporting of hourly bill rates, and bars an agency from restricting where its workers may otherwise work or from imposing charges when a worker is offered a permanent job. Massachusetts has for years capped what temporary nursing agencies may charge long-term care facilities, by region and shift, with holiday rates capped at 150 percent of the maximum.
The regimes differ by state and change frequently. See nurse staffing agencies.
What to establish before the first shift
Whether you are being engaged as a W-2 employee or a 1099 contractor, in writing.
Who carries workers' compensation for an injury on that shift.
Who carries professional liability cover, and for how much, and whether it covers claims made after the engagement ends.
Whether the entity placing you is registered in your state where registration is required, and whether it holds Health Care Staffing Services certification from the Joint Commission, which reviews how a firm verifies credentials and competency.
How and when you are paid, and what happens if a facility disputes hours.
Related
- Per diem nursing
- Per diem nurse pay
- Per diem shift apps and marketplaces
- Nurse staffing agencies
- How per diem scheduling works
Sources
- Identifying full-time employees. Internal Revenue Service, on the 30-hour and 130-hour thresholds and the measurement methods. Accessed September 9, 2026.
- Misclassification of employees as independent contractors. U.S. Department of Labor, on how employment status is determined under the Fair Labor Standards Act. Accessed September 9, 2026.
- Independent contractor (self-employed) or employee? Internal Revenue Service, on the control tests and self-employment tax. Accessed September 9, 2026.
- Independent contractor versus employee. California Department of Industrial Relations, on the three-part test applied in that state. Accessed September 9, 2026.
- The gig economy has come for nursing. STAT, 31 March 2025, on classification and litigation involving nursing platforms. Accessed September 9, 2026.
- Temporary health care staffing agencies now required to register in New York. Garfunkel Wild, on the 2023 registration and reporting law. Accessed September 9, 2026.
- 101 CMR 345.00: Rates for temporary nursing services. Commonwealth of Massachusetts. Accessed September 9, 2026.
- Health Care Staffing Services certification. The Joint Commission. Accessed September 9, 2026.