The posted locum rate is not your pay. It is the opening number in a much longer subtraction problem.
The data shows that real take-home pay for locum physicians is shaped by seven moving parts: taxes, housing, travel, licensing, malpractice structure, daily living costs, and how densely the assignment is scheduled. I have seen two physicians take contracts at nearly identical day rates and finish the month thousands of dollars apart. Same specialty. Same hours on paper. Very different net results.
That gap is not bad luck. It is math.
Take-home pay, for a locum physician, is gross compensation minus:
- federal, state, and sometimes local taxes
- housing and lodging costs not fully reimbursed
- flights, mileage, rental cars, tolls, parking, and baggage
- license and credentialing expenses
- malpractice gaps, including tail exposure in the wrong setup
- unpaid admin time, onboarding time, and dead travel days
This is where state differences start to matter. A clean-looking offer in a high-tax, high-cost state can underperform a slightly lower rate in a lower-cost market by $2,000 to $5,000 per month in practical spendable income. Sometimes more. The numbers get even uglier when the assignment requires frequent travel home, short booking windows, or repeated credentialing friction.
My position is simple: if you compare locum offers by hourly rate alone, you are doing it wrong. Gross pay is marketing. Net pay is reality.
This article is for educational purposes only and is not financial, legal, or tax advice. Actual tax treatment, contract structure, reimbursement policies, and malpractice obligations vary widely, so you should review any offer with a qualified accountant, attorney, or advisor before making decisions.
Locum Pay Isn’t Just the Hourly Rate: What Actually Determines Net Income
Most physicians define a locum offer by one number. “They are paying $220 an hour.” Fine. That tells you almost nothing about what you keep.
The data shows that net income depends on structure more than headline rate. A 10-shift-per-month assignment with guaranteed hours, covered housing, paid travel, and occurrence malpractice can beat a nominally higher-paying assignment with spotty scheduling and weak reimbursement. Easily.
Here is the practical formula:
Net take-home pay = gross locum compensation - taxes - unreimbursed housing - travel costs - licensing/credentialing costs - malpractice exposure - daily living overages - unpaid time
A few examples I have seen repeatedly:
- A hospitalist assignment in a no-income-tax state looked average on rate but delivered stronger monthly surplus because housing was covered and shifts were tightly block-scheduled.
- An emergency medicine contract in a major coastal metro posted a premium rate, but lodging, parking, meals, and state tax erased much of the advantage.
- A short-term anesthesia contract looked lucrative until the physician had to absorb repeated flights and a licensing rush fee.
The state layer matters because costs are not evenly distributed. Taxes can take a visible slice. Housing can take a silent one. Travel and admin drag take the slice people forget.
That is the framework for the rest of this article: state-by-state differences do not merely nudge earnings. They can compress or expand real take-home pay by thousands per month.
1) State Income Tax: The Most Visible Hit to Take-Home Pay
State tax is the easiest cost to see, which is exactly why recruiters love talking around it.
The data shows that on $250,000 in gross locum income, the spread between a no-income-tax state and a high-tax state can be meaningful enough to change which offer is actually best. Using broad illustrative ranges:
- No-income-tax states: roughly 0% state income tax
- Moderate-tax states: often about 3% to 6%
- High-tax states: often about 7% to 10%+ at top marginal brackets
That implies an annual state-tax difference that can range from roughly:
- $0 to $2,500 in no-tax settings, depending on sourcing and structure
- $7,500 to $15,000 in moderate-tax settings
- $17,500 to $25,000+ in high-tax settings for higher earners with enough in-state taxable income
Those are not rounding errors. That is one to three months of housing in some markets. Or several flights home. Or your SEP contribution buffer.
Residency status matters. Withholding strategy matters. Multi-state income sourcing matters. But the broad conclusion does not change: if you skip tax modeling, you are guessing. And guessing with physician compensation is expensive.
I am blunt about this. A strong-looking locum rate in a high-tax state is often overrated on first glance. Not always bad. But overrated. Model the state hit before you say yes.
2) Housing, Lodging, and Per-Diem Costs: The Hidden State-by-State Spread
Housing is where a lot of “great contracts” quietly fall apart.
The data shows that temporary lodging costs can swing dramatically by market type:
- Rural markets: often $90 to $150 per night
- Suburban markets: often $140 to $220 per night
- Major metro markets: often $220 to $350+ per night
Over a 20-night month, that means roughly:
- $1,800 to $3,000 in lower-cost markets
- $2,800 to $4,400 in suburban settings
- $4,400 to $7,000+ in high-cost metros
If your lodging stipend is fixed at, say, a moderate market assumption, the out-of-pocket difference becomes your problem. Not the hospital’s. Yours.
I have watched physicians focus on the gross housing allowance instead of the actual reimbursement gap. Wrong metric. The only number that matters is:
Actual lodging cost - reimbursed amount = housing drag on net pay
Long-stay discounts help. Furnished apartments often beat hotels after week two. Some assignments cover housing directly, which simplifies the math and reduces cash-flow strain. Others hand you a stipend that looks decent until you try booking a safe, clean place near the hospital in a high-demand city.
That is why two assignments with identical lodging support can have very different outcomes depending on state and metro profile.
3) License, Credentialing, and Travel Friction: Costs That Scale With Distance
Travel friction is real, and physicians routinely undercount it.
The data shows that state license fees alone may run from a few hundred dollars to over $1,000 once you include application fees, fingerprints, verifications, background checks, DEA-related updates, and possible expedited processing. Add credentialing delays and the cost grows again. Every week you wait is a week you are not billing.
Then there is travel:
- recurring flights
- airport parking
- baggage fees
- rental cars
- gas and mileage
- tolls
- rideshares
- lost half-days around travel windows
A physician flying twice monthly for an out-of-state assignment can easily burn $600 to $1,500 per month in transit costs even before rental car and parking inflation in busy regions. If the assignment is block-scheduled well, that cost is manageable. If you are commuting for scattered shifts, it is financial self-sabotage.
The ugly truth: higher-paying states are not automatically higher-net states. If the schedule is fragmented and the site is a flight plus long drive away, the “premium” rate gets chewed up by logistics.
4) Malpractice Coverage, Coverage Gaps, and Risk Pricing by State
Malpractice is where “fully covered” often turns into vague recruiter language. Bad sign.
The data shows that the structure of malpractice coverage matters as much as whether coverage exists at all. The key distinction:
- Occurrence coverage: covers incidents that happened during the policy period, even if the claim is filed later
- Claims-made coverage: covers claims only if the policy is active both when the event occurred and when the claim is filed, which can create tail issues
For locum physicians, occurrence coverage is usually cleaner. Claims-made can be fine, but only if tail responsibility is clearly addressed. If it is not, you may be pricing a contract wrong by several thousand dollars in hidden risk.
This problem gets worse in states or settings with:
- heavier litigation environments
- frequent short-term placements
- slower credentialing and onboarding transitions
- multiple agencies or fragmented assignment histories
I have seen lower day-rate offers win decisively because malpractice was truly turnkey: occurrence-based, employer-paid, no ambiguity. That simplicity has value. Real value.
Physicians tend to overfocus on posted compensation and underprice legal exposure. That is a mistake. If one offer is $100 a shift lower but includes cleaner malpractice terms, lower tail risk, and no credentialing gap, the lower rate may still produce better risk-adjusted net value.
5) Cost of Living, Meal Expenses, and Day-to-Day Spending Erode Different States Differently
Daily spend matters more than people think. Not because any single meal breaks a contract. Because small overruns repeat 20 or 25 times a month.
The data shows that groceries, meals, parking, fuel, and incidentals vary enough to reduce monthly surplus materially. A practical monthly spread can look like this:
- Low-cost states/markets: $900 to $1,300
- Mid-cost states/markets: $1,300 to $1,900
- High-cost urban states/markets: $2,000 to $3,000+
Parking alone in some urban hospitals can add hundreds monthly. Fuel swings with geography. Restaurant pricing near medical centers is reliably annoying. Per diem rates often trail real-world prices, especially in expensive metros and seasonal markets.
A physician working in a lower-cost regional site may keep far more of a moderate contract than someone earning a higher rate in a downtown coastal market with brutal parking, expensive takeout, and weak stipend coverage.
This is not glamorous analysis. It is the kind that saves money. Boring. Effective. Necessary.
6) Specialty Demand and Shift Density: Why the Same State Can Pay Very Differently
State averages hide too much.
The data shows that within the same state, emergency medicine, anesthesia, hospital medicine, psychiatry, and radiology can have sharply different economics because demand density is specialty-specific. A psychiatry assignment with guaranteed weekly volume can outperform an emergency medicine assignment with higher posted hourly pay but frequent cancellations. Same state. Different reality.
Look at three variables:
- guaranteed hours
- number of shifts grouped together
- cancellation risk or unpaid gaps
Effective hourly pay is what remains after idle time is removed. If one contract pays $210 an hour for 36 guaranteed hours weekly and another pays $240 with unstable scheduling, the lower nominal rate may produce more predictable and often higher monthly net income.
Shift density matters because travel and housing become cheaper per shift when assignments are block-scheduled. A 10-shift cluster is efficient. Four scattered shifts across a month is nonsense unless the rate is extraordinary.
7) A Practical State-by-State Framework for Comparing Locum Offers
Here is the framework I recommend. Simple. Repeatable. Hard to fool.
For each offer, build a one-page scorecard with these categories:
Gross compensation
- hourly or daily rate
- guaranteed minimum hours
- expected shifts per month
Tax estimate
- federal estimate
- state income tax estimate
- local tax, if applicable
- residency and multi-state filing effects
Assignment costs
- housing out-of-pocket after reimbursement
- travel costs per month
- rental car, fuel, tolls, parking
- meals and incidentals beyond per diem
Startup and friction costs
- license fees
- credentialing and application fees
- expedited processing
- unpaid onboarding time
Risk adjustments
- malpractice structure
- tail responsibility
- cancellation terms
- payment delays or invoicing risk
Then calculate two metrics that actually matter:
- Net per shift = estimated monthly net income / scheduled shifts
- Net per scheduled hour = estimated monthly net income / total scheduled hours
Those normalize offers across states and specialties. They also expose bad contracts quickly.
Here is a simple sample comparison:
Use a ranking method:
- rank each state for net monthly pay
- rank for net per shift
- rank for net per hour
- subtract points for cancellation risk and credentialing drag
The best locum offer is the one with the highest risk-adjusted net efficiency, not the prettiest rate sheet. That is the metric adults use.
Key Takeaways
- The data shows that gross locum pay is only the starting number; state-specific costs can change net income by thousands.
- The highest posted rate is not always the best deal once taxes, housing, travel, licensing, and malpractice are included.
The locum market is not getting simpler. More cross-state work, more variable reimbursement, more pressure on margins. That means your advantage is not just clinical flexibility. It is analytical discipline. The physicians who model net pay correctly will make better moves, keep more income, and avoid the fake “premium” contracts that look good only until the receipts start piling up.
