Quick answer: An internal per diem RN costs a facility roughly $45 to $65 an hour in 2026. The same shift filled through a staffing agency runs $75 to $150 an hour, sometimes higher for ICU, ED, or OR coverage in a tight market. The gap between those two numbers is markup: recruiting cost, agency overhead, insurance, and profit, layered on top of what the nurse actually takes home.
Most workforce leaders already know per diem is cheaper than travel nursing. Fewer can say exactly how much cheaper an internal pool is than an agency pool, or why that gap has gotten more expensive to ignore in 2026 than it was two years ago.
The two ways hospitals pay for per diem coverage
"Per diem cost" means two different things depending on who's sourcing the nurse.
If the nurse is on your own facility's per diem roster, you're paying a base hourly rate plus shift differentials, no agency involved. If the nurse comes through a staffing agency or vendor management system, you're paying a bill rate that bundles the nurse's pay with the agency's markup. Both get called "per diem." Only one of them is close to what the nurse actually earns.
Confusing the two is where budgets go wrong. A CFO comparing "per diem" line items across departments is often comparing internal roster pay in one unit to agency bill rates in another, without realizing the numbers aren't measuring the same thing.
What an internal per diem pool actually costs
Facility-employed per diem RNs typically earn 20% to 40% above your staff nurse base rate for the same unit. A staff RN making $38 an hour might see $48 to $55 an hour on the per diem roster, plus standard shift differentials for nights, weekends, and holidays.
On top of base pay, expect:
- Incentive pay of $10 to $25 an hour for shifts posted within 24 hours of need, often labeled "critical staffing" or "bonus shift" pay
- Orientation costs of $200 to $600 per nurse, assuming they're already familiar with your systems and unit
- Minimum shift commitments, typically 2 to 4 shifts a month including one weekend shift, which keep the pool reliable enough to plan around
There's no recruiter fee, no agency margin, and no housing stipend. That's the entire cost advantage in one sentence.
What an agency-sourced per diem nurse actually costs
Agency per diem bill rates run $75 to $150 an hour depending on market and specialty. Published markup figures vary widely: some staffing sources cite 15% to 25%, others 25% to 45%, others as high as 60% over direct labor cost. That spread isn't a typo. It reflects genuinely inconsistent pricing across agencies, markets, and how aggressively a facility negotiates.
Large health systems running vendor management systems or managed service provider programs typically see markups compressed to 15% to 25%, since the MSP is negotiating volume rates across multiple agencies. Facilities without that leverage, or facing an urgent single-shift gap, tend to land at the higher end.
The practical takeaway: ask your agency for the markup number directly, not just the bill rate. If they won't give you a straight answer, that's information too.
Cost by specialty: ICU, ED, OR, and L&D run hotter
Specialty units don't just cost more because the work is harder. They cost more because the nurse supply is thinner. In California, for example, per diem ICU RN pay averages around $52 an hour and tops out near $72, while general per diem RN roles average $50 an hour with cardiovascular OR postings reaching $82. That's a real spread within a single state, driven entirely by how hard the specialty is to staff.
ED, L&D, and cath lab roles follow the same pattern. If your facility is chronically short in a high-acuity specialty, the per diem premium there tells you something the vacancy report doesn't: the market has already priced in how hard that role is to fill.
Cost by state: per diem isn't priced the same everywhere
Per diem nurses in California, New York, and Massachusetts typically earn 20% to 30% more than nurses doing the same work in the Midwest or Southeast. Cost of living explains part of it. Union density and state-level wage floors explain more of it in some markets.
State licensure friction adds a second layer of cost that's easy to miss. If your facility pulls per diem or short-term coverage from outside your home state, whether a nurse holds a compact license changes both your timeline and your rate leverage. Our breakdown of Nurse Licensure Compact states in 2026 covers which states let a multistate license start working immediately and which ones still require a separate application, which matters if you're building an out-of-state per diem bench for surge coverage.
The hidden costs that don't show up in the hourly rate
The hourly figure is the visible cost. It isn't the whole cost.
Replacing a single RN who leaves costs a facility an average of $56,300 once you account for recruiting, onboarding, lost productivity, and temporary coverage during the gap. Hospitals collectively spent $6.6 billion on RN turnover in 2024. A weak internal per diem pool doesn't just cost more per shift. It makes every resignation more expensive, because the gap gets filled with agency labor at $75 to $150 an hour instead of internal per diem at $45 to $65.
Travel nurse bill rates remain 40% to 70% above staff nurse rates even after cooling from their 2022 peak. If your facility defaults to travel contracts for gaps that could be covered by a same-day per diem shift, that's not a staffing decision, it's a budget leak with a recurring line item.
Per diem vs. travel vs. locum tenens: which one is actually cheaper
For short, predictable gaps, per diem wins on cost almost every time. A 12-hour per diem shift runs roughly 25% to 35% less than a comparable travel nurse contract on a per-hour basis, with no housing stipend and minimal onboarding if you're pulling from a familiar pool.
Travel nursing earns back some of that gap when a role needs to be filled for six or more consecutive weeks, particularly in ICU, OR, or NICU, where availability constraints narrow the per diem pool. For physician and advanced practice coverage rather than nursing, the math runs differently again. Our guide to locum tenens markup rates in 2026 walks through what agencies actually keep on physician and APP placements, which is useful context if your facility is weighing per diem nursing coverage against locum coverage for a mixed clinical gap.
How to bring per diem costs down without losing coverage
The lever hospitals underuse is the internal pool itself. A mid-sized facility that shifts 20% of its agency usage to a well-run internal per diem pool can realistically save $800,000 to $1.5 million a year, based on typical agency markup rates applied to average utilization.
Getting there takes three things: recruiting for the pool before you're in a staffing crisis, pricing per diem base pay competitively against what local agencies actually pay their nurses (not what they bill you), and giving nurses enough shift flexibility and bonus-shift incentive that per diem with your facility beats picking up agency work elsewhere.
If you're building or scaling that internal pool, our internal resource pool solutions page covers how DirectShifts helps facilities manage their own per diem bench directly, without routing every gap through an agency markup.
Frequently asked questions
What is the average per diem nurse hourly rate in 2026?Facility-employed per diem RNs average $45 to $65 an hour depending on specialty and location. Agency-sourced per diem nurses bill hospitals $75 to $150 an hour, since that rate includes the agency's markup on top of the nurse's pay.
How much do hospitals pay for agency per diem nurses vs. internal per diem staff?Agency per diem typically costs 40% to 65% more than an internal pool for the same coverage, once markup, recruiting fees, and overhead are factored in. Facilities with negotiated MSP or VMS agreements usually see that gap narrow closer to 15% to 25%.
Why do per diem nurses get paid more than staff RNs?Per diem pay runs 20% to 40% above staff rates because per diem nurses give up benefits, guaranteed hours, and schedule predictability. The premium compensates for that trade-off and keeps the pool willing to pick up short-notice shifts.
Do per diem nurse rates vary by state?Yes. States like California, New York, and Massachusetts run 20% to 30% higher than the Midwest or Southeast, driven by cost of living and, in some states, union wage floors. Licensure compact status also affects how easily a facility can pull per diem coverage from outside its home state.
Is per diem nursing cheaper than travel nursing?For short-term or predictable gaps, yes, typically 25% to 35% cheaper per hour, with no housing stipend. Travel nursing becomes more cost-competitive for assignments running six or more weeks, especially in high-acuity specialties where the per diem pool is thin.
What's a reasonable agency markup for per diem nurse staffing?Published figures range from 15% to 65%, which is wider than it should be. Facilities using an MSP or negotiating volume tend to land at 15% to 25%. Anything well above that without a clear justification is worth challenging directly with the agency.
Ready to see how much your facility could save by building out an internal per diem pool instead of defaulting to agency coverage? Schedule a demo with DirectShifts to walk through your current spend.
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