Per diem nursing is a type of work arrangement where nurses pick up shifts on an as-needed basis rather than committing to a fixed full-time or part-time schedule. The term comes from the Latin phrase meaning “per day,” and it describes the core idea well: you work day by day, choosing shifts that fit your life and filling gaps when facilities need extra coverage. Some nurses do it as their primary career; others use it to supplement income from a regular staff position.
How Per Diem Shifts Actually Work
Per diem nurses exist to cover the unpredictable side of healthcare staffing. When a hospital unit has three nurses call out sick on a Tuesday morning, a per diem nurse fills one of those slots. When patient volume spikes during flu season or a holiday weekend thins out the schedule, per diem nurses absorb the overflow. The work itself is the same clinical nursing that staff nurses do. What changes is the employment relationship.
Most facilities require per diem nurses to commit to a minimum number of shifts per pay period or per month. A common structure is one to two shifts per pay period (every two weeks), though the exact requirement varies by employer. Many hospitals also require per diem staff to work a certain number of holiday or weekend shifts per year. Beyond those minimums, you choose when and how much you work. You can pick up extra shifts when you want more income and scale back when you don’t.
There are two main paths into per diem work. You can join a hospital’s internal per diem pool (sometimes called PRN, short for the Latin “pro re nata,” meaning as needed) or work through a third-party staffing agency that places you at various facilities. Internal pool nurses typically know one hospital’s systems and culture well. Agency nurses may rotate between several facilities, which demands faster adaptation but opens up more shift options.
Per Diem vs. Travel Nursing
People sometimes confuse per diem nursing with travel nursing, but they’re structured very differently. Per diem nurses work locally, picking up shifts near where they live with no obligation to relocate. Travel nurses accept temporary assignments, often lasting 8 to 13 weeks, at facilities across different states or even countries. Travel contracts typically come with housing stipends, signing bonuses, and full benefits packages. Per diem roles rarely include any of that.
Travel nursing is also more structured on the front end: you apply, interview, and get matched to an assignment. Per diem work is more fluid. You might browse available shifts on an app, get a text from a charge nurse asking if you can come in tomorrow, or simply sign up for open slots on a scheduling board. The trade-off is that travel nurses earn higher total compensation packages but sacrifice control over where they live, while per diem nurses stay home and set their own pace.
What Per Diem Nurses Earn
Per diem nurses typically earn a higher hourly rate than their full-time counterparts at the same facility. The premium compensates for the lack of benefits and guaranteed hours. How much higher varies widely by region, hospital system, and specialty.
Real-world examples illustrate the range. In one New York hospital, full-time RNs earn around $60 per hour while per diem nurses make $80 to $85. At another facility, part-time staff earn $54 per hour and per diem earns $64. Some hospitals add a flat percentage, with reported stipends of 4%, 12%, 15%, or even 23% above the base staff rate. A few facilities use tiered systems where per diem pay increases the more shifts you commit to: $32 per hour for one shift per pay period, $36 for four shifts, and $40 for six.
Not every facility pays per diem nurses more, though. Some hospitals set a flat per diem rate that can actually fall below what a full-time nurse earns once you factor in differentials for nights, weekends, or experience. Per diem nurses often don’t qualify for those add-on differentials. Before accepting a per diem position, it’s worth comparing the total compensation picture, not just the base hourly number.
Benefits and What You Won’t Get
The biggest financial trade-off of per diem work is the absence of traditional employer benefits. Most per diem nurses do not receive employer-sponsored health insurance, retirement plan matching, paid time off, or tuition reimbursement. Some large hospital systems offer limited benefits to per diem staff who meet a minimum hours threshold, but this is the exception.
Without employer coverage, you’ll need to find health insurance on your own. The federal Health Insurance Marketplace allows part-time and per diem workers to apply for plans, and depending on your household income, you may qualify for premium subsidies or Medicaid. If a spouse or partner has employer coverage, joining their plan is often the simplest route. The cost of self-purchased insurance is one of the biggest factors nurses weigh when deciding whether per diem work makes financial sense long-term.
Retirement savings are entirely self-directed. Per diem nurses who want to build a retirement fund typically contribute to an IRA on their own. Without an employer match, the effective cost of saving for retirement is higher than it would be in a staff position.
Taxes and Employment Classification
Your tax situation depends on how you’re classified. Per diem nurses who work directly for a hospital or healthcare system are typically W-2 employees. The facility withholds income taxes, Social Security, and Medicare from each paycheck, just like it does for full-time staff. The only difference is that your hours and income fluctuate.
Per diem nurses who work through certain staffing agencies may be classified as independent contractors and receive a 1099 form instead. In that case, you’re responsible for paying self-employment taxes (covering both the employee and employer portions of Social Security and Medicare) and filing quarterly estimated tax payments. You can deduct business expenses like scrubs, continuing education, and mileage, but you need to track them carefully. Knowing which classification applies before you start is important because it affects your take-home pay by roughly 7 to 8 percent.
Experience and Skills You’ll Need
Per diem nursing is not generally an entry-level path. The American Nurses Association emphasizes that a solid foundation of clinical skills and experience is necessary to adapt to different patient populations, care environments, technology systems, and facility-specific policies. Most hospitals and agencies expect at least one to two years of recent bedside experience in a relevant specialty before hiring a nurse into a per diem role.
The reason is practical. When you walk onto a unit as a per diem nurse, orientation is minimal. You might get a brief tour and a login for the electronic health record, but nobody is precepting you for weeks. You’re expected to function independently from the start, handle unfamiliar patients, and troubleshoot equipment you may not have used before. Nurses who thrive in per diem work tend to be confident clinical decision-makers who are comfortable asking questions without feeling lost.
Where the Demand Is Heading
The per diem nursing staffing market was valued at roughly $16 billion in 2025 and is projected to reach nearly $24 billion by 2031, growing at about 6.8% annually. Several forces are pushing that growth. Hospital patient volumes have stabilized at levels 15 to 20% above pre-pandemic baselines as deferred care and chronic disease management catch up. An aging population means longer hospital stays and more nurse-hours required per bed. And a projected global shortfall of 4.1 million nurses, identified by the World Health Organization, means the supply side isn’t keeping pace.
Hospitals account for the largest share of per diem nurse hiring, at about 58% of the market. But the fastest-growing segment is home healthcare, where agencies are increasingly using per diem nurses to staff in-home visits and post-acute care. Registered nurses make up roughly 62% of per diem billings, while advanced practice nurses (nurse practitioners and clinical nurse specialists) represent the fastest-growing credential category.
Digital staffing platforms are also reshaping how per diem shifts get filled. Traditional staffing agencies still handle about 73% of placements, but app-based marketplaces, where nurses can browse and claim open shifts from their phone, are growing nearly twice as fast. For nurses considering per diem work, this means more transparency around available shifts, pay rates, and facility reviews than existed even a few years ago.
Who Per Diem Nursing Works Best For
Per diem nursing appeals to a wide range of people, but it fits some life situations better than others. Nurses with a working spouse who provides health insurance and a stable household income often find the flexibility ideal, especially those raising young children or pursuing advanced degrees. Semi-retired nurses who want to stay clinically active without a full-time commitment are another natural fit. And nurses who simply burn out under rigid schedules sometimes find that controlling when they work restores their relationship with the profession.
It tends to work less well for nurses who need predictable income, access to employer benefits, or the professional development opportunities (mentorship, committees, leadership tracks) that come with being part of a permanent team. Per diem nurses can feel like perpetual outsiders on units where relationships and institutional knowledge matter. If career advancement within a single organization is a priority, a staff position gives you more visibility and continuity than picking up scattered shifts.