Per-Diem Hourly Floor Calculator

Why per-diem rates at a headline premium can still be a loss

Staff RN total comp is not just the base hourly. The KFF 2024 Employer Health Benefits Survey measures the average employer-side contribution for single-coverage health insurance at approximately $8,951 per year — that's direct money the hospital pays to the insurance carrier on the staff nurse's behalf, money the per-diem nurse does NOT receive and has to self-fund on the ACA marketplace. Vanguard's "How America Saves" 2024 documents a typical 4 percent 401(k) employer match on base wages for healthcare-adjacent employers. At a $44/hr × 36 hr × 48 wk = $76,032 annual base, that's $3,041 of direct employer money paid into the nurse's retirement account.

Paid time off is a cost the hospital bears for the staff RN but not for the per-diem. 120 hours of PTO at a $44/hr rate is $5,280 of wages the staff nurse earns without working. Add roughly $1,500 in continuing-education reimbursement, short-term disability, and group life insurance, and the staff RN's total benefits stack is $18,772 per year on top of the $76,032 base. Total comp: $94,804.

A per-diem nurse working at 24 hours per week for 48 weeks at a hypothetical $65/hr earns $74,880 gross — less than the staff nurse's benefits-included total comp, despite a nearly 50 percent hourly premium on paper. The break-even rate to match the staff nurse's annual total comp at 24 hours per week is $94,804 / 1,152 = $82.30/hr. Add a 20 percent flexibility premium to compensate for the no-guaranteed-hours risk and the floor rises to $98.76/hr. At $65/hr offered, the per-diem rate is 34 dollars below the floor — the nurse should decline or negotiate.

California's IWC Wage Orders §5 — correctly cited

California's reporting-time-pay rule comes from the Industrial Welfare Commission's Wage Orders (Section 5 in most orders) and is interpreted by the Department of Industrial Relations (DIR) Division of Labor Standards Enforcement. This is not Labor Code §510, which governs daily overtime (1.5x after 8 hours per day, 2x after 12 hours per day). The two rules are often conflated in blog posts and even in some employment-law summaries, but they answer different questions: §510 governs what happens when a nurse works past a daily-hour threshold; Section 5 governs what happens when a scheduled shift gets cancelled or truncated.

The Section 5 rule: if a non-exempt employee reports to work as scheduled and is not put to work, OR is furnished less than half the usual or scheduled day's work, the employer must pay half the usual or scheduled day's work at the regular rate — with a minimum of 2 hours and a maximum of 4 hours. If an employee reports a second time in the same workday and is given less than 2 hours of work, the employer owes 2 hours at regular rate. Reporting-time pay is explicitly not hours worked for overtime computation purposes — so a per-diem nurse who gets cancelled after reporting earns the reporting-time pay but it doesn't count toward the weekly OT threshold.

Source: California DIR reporting-time-pay FAQ. Text of the IWC Wage Orders is at dir.ca.gov/IWC.

The W-2 PRN vs 1099 local-contract branch — why classification matters

Not all per-diem work is the same legal relationship. Two patterns dominate:

W-2 PRN / per-diem: the nurse is on the hospital's internal staff pool. The hospital withholds income tax, Social Security tax (6.2 percent employee), and Medicare tax (1.45 percent employee) from the per-diem paycheck, and pays the matching employer halves on top. The nurse is a W-2 employee with full state labor-law protection — including reporting-time pay in the six jurisdictions that have it. Typically no benefits (no health, no 401(k) match), but eligible for state-law protections and for employer-paid FICA.

1099 local contract: the nurse is an independent contractor, typically engaged through a local staffing agency rather than employed by the hospital directly. The nurse receives a Form 1099-NEC for the year's gross payments, files Schedule SE to compute self-employment tax at 15.3 percent (12.4 percent Social Security up to the wage base + 2.9 percent Medicare uncapped), and can deduct mileage, continuing-education, and home-office expenses under IRC §162. IRC §1402(a)(12) allows a deduction of 0.5 × SE tax as an above-the-line adjustment, shrinking the effective SE-tax gap from 7.65 percent (the employer share a W-2 would avoid) to roughly 5.81 percent at a 24 percent marginal rate. Critically, the 1099 contractor has no reporting-time-pay protection — the statute covers employees, not contractors.

The classification question is NOT what the offer letter says. The IRS facts-and-circumstances test (Rev. Rul. 87-41, 20-factor test) treats exclusivity, schedule control, equipment provision, and integration-into-business as markers of an employee relationship. A hospital that demands a nurse work only for them, sets the schedule, and provides all equipment has created an employee relationship regardless of a 1099 label. Nurses who suspect misclassification can file IRS Form SS-8 for an IRS determination, or contact the state DOL.

Reporting-time-pay by state — what's in the dataset

Most US states have no statutory reporting-time-pay floor. A cancelled per-diem shift in Texas, Florida, Illinois, or Pennsylvania is an uncompensated commute — the nurse bears the full downside of a same-day cancellation. That's a material variable in the shift-accept decision, and the calculator surfaces it explicitly.

Our assumptions and sources

Frequently asked questions