W-2 or 1099 in Emergency Medicine

The headline gap, and what eats it

The working band is 25 to 30 percent over the W2 salary for the same shifts. Take the hospital or health system employed average of $428,500 (Marit Health, 1,905 self reported emergency medicine salaries, October 2026). The equivalent 1099 contract rate runs from $428,500 times 1.25, or $535,625, to $428,500 times 1.30, or $557,050. A $480,000 contract offer against that salary is not a raise. It is a pay cut wearing a bigger number.

What eats the gap is not one item but the stack this page prices: the payroll tax the employer paid on top, off the quote, the match and the second deferral the W2 job carried, health premiums, malpractice with tail, paid leave and schedule guarantees inside employment, and the administrative load the contractor now owns: quarterly tax payments, bookkeeping, and gaps between contracts. None of it argues against contracting, which buys schedule control employment rarely sells. It argues against comparing a rate to a salary and calling the comparison done.

The payroll tax, in dollars

Self employment tax is 15.3 percent: 12.4 percent Social Security, 2.9 percent Medicare. For 2026, the Social Security wage base is $184,500 (Social Security Administration, 2026 cost of living adjustment fact sheet), so the Social Security part stops at that base while the Medicare part runs on all net self employment earnings, plus the 0.9 percent additional Medicare tax past the thresholds.

On a $540,000 sole proprietor contract, the tax computes as 12.4 percent of $184,500, which is $22,878, plus 2.9 percent of $540,000, which is $15,660: about $38,500 in payroll tax, before the additional Medicare tax where it applies. Half of the self employment tax is an adjustment to income, which softens the cost at your marginal rate but does not erase it.

Run the employed average through employment instead. On a $428,500 salary, the employee pays 6.2 percent Social Security to the wage base, which is $11,439, plus 1.45 percent Medicare on the full salary, $6,213, plus the 0.9 percent additional Medicare tax on wages past $250,000 for a married couple filing jointly, about $1,607: about $19,300 from the paycheck. The employer pays its matching share, about $17,700 more, on top of the salary, invisibly. That invisible line plus the benefits stack is what the 25 to 30 percent band has to replace.

The solo 401(k), priced

The contractor advantage is retirement capacity, and it reaches the ceiling. A solo 401(k) lets a self employed physician defer $24,500 as the employee for 2026 and contribute as the employer up to 25 percent of compensation, which for the self employed computes to about 20 percent of net self employment earnings, up to the $72,000 annual additions ceiling (Internal Revenue Service, One Participant 401(k) Plans, Notice 2025-67).

On a $540,000 sole proprietor contract, the math runs: about $521,000 of net earnings after the deduction for half the self employment tax, times 20 percent, is about $104,000 of employer room, which caps at $72,000 minus the $24,500 deferral, so the plan reaches the full $72,000. An S corporation computes its employer contribution on W2 salary only, so it must pay a high salary, and payroll tax on it, to buy the same room.

Two coordination warnings ride with the advantage. The $24,500 deferral is one limit per person across every plan you touch, so a physician who deferred $24,500 into a hospital 403(b) this year has no deferral left for the solo plan. And a 403(b) at a day job is aggregated with a plan of a business you control for the overall additions limit, so a moonlighting solo plan cannot stack a second $72,000 on top of a maxed hospital plan. A SEP IRA breaks the backdoor Roth through the pro rata rule. The solo 401(k) does not.

The entity layer

Before any tax election, state law decides what entity a physician may practice through. Most states require licensed professionals to use a professional corporation, a professional limited liability company, or a professional association for an entity providing medical care, and an ordinary LLC is not available for the clinical work itself. California bars LLCs and PLLCs from professional medical services entirely: a California physician contracts as a sole proprietor or through a professional medical corporation under the Moscone-Knox Professional Corporation Act.

On the tax side, the qualified business income deduction phases out for specified service businesses, and medicine is one, so most full income emergency physicians land above the phase out range and get no deduction to plan around. The S corporation's real saving is narrower than its reputation: Social Security tax is already capped at the wage base, so the election mainly shelters the 2.9 percent Medicare tax, plus the 0.9 percent where it applies, on profit above the salary, weighed against payroll costs and state entity fees. The established version is worked in the S corporation question.

The benefits balance sheet

Build the employed offer as a column of cash values before comparing any rate. The match: a common hospital structure matches half of the first 6 percent of pay you defer, 3 percent of pay counted only up to the $360,000 compensation limit for 2026 (IRS Notice 2025-67), or about $10,800 a year of employer money on a $428,500 salary.

The second deferral: a governmental 457(b) beside the 403(b), where the employer offers one, shelters another $24,500 a year and allows distributions after separation with no early withdrawal penalty. Health premiums the employer carries. Malpractice with the tail settled in the contract. Add the column up and the band stops being a rule of thumb and becomes your number.

One employed asset cannot be bought back at any rate. Public Service Loan Forgiveness runs on qualifying employment: forgiveness after 120 qualifying monthly payments while working full time for a government or 501(c)(3) nonprofit employer (Federal Student Aid). Eligibility follows the employer that pays you, not the building you work in, so 1099 work for a for profit staffing company does not qualify even inside a nonprofit hospital, with a narrow exception, effective July 1, 2023, where state law bars the hospital from employing physicians directly. California and Texas are the named examples.

The insurance layer a contractor self funds

As a contractor, every layer of coverage is a line you buy yourself. Disability comes first, because this specialty sells a body as well as a brain: carriers issue total coverage of about 60 to 70 percent of pre disability income (Medical Economics), and the contractor holds no group floor underneath, so the individual own occupation policy carries the whole band alone, sized in the bank's disability sizing question. Health coverage moves onto your own bill, and its premium belongs in the rate comparison as surely as the payroll tax does.

Malpractice is the layer contractors most often misprice. An occurrence policy covers claims arising from care given while the policy ran, whenever the claim arrives. A claims made policy covers claims only while the policy, or a tail purchased when it ends, remains in force, so the departing contractor owes the tail before the next contract starts. Read who carries malpractice, and who pays the tail, before the rate is discussed. The bank works the fork in the malpractice question.

The traps

Three traps repeat in this specialty's switch. The first is the reserve: the waterfall finishes reserves at six months of expenses on W2 income and up to twelve on 1099 income, because contract work carries gap risk, and switching before the 1099 reserve exists converts the first cancelled contract into debt.

The second is quarterly discipline: contractor income arrives with nothing withheld, so the tax share gets set aside the day each check lands and estimated payments go out on schedule. The third is moonlighting drift at the resident stage: moonlighting income is 1099 income with the full 15.3 percent self employment tax on it, because a resident stipend sits below the wage base. Attendings past the wage base owe only the Medicare parts on side income.

Locums, moonlighting, and group ownership

Full time locums is the pure contract case: run the whole page. The locums bank works the give up list in the locums benefits question and the full setup in the 1099 setup question. Moonlighting beside a W2 job is the partial case: the day job already pays the benefits sheet, so side income is priced on its tax alone.

Democratic group ownership is the third case and the subtlest. A partner in a group that holds its own hospital contract may be an employee of a practice they partly own, with W2 wages, distributions, and a buy in running on the books. Self reported pay shows the ordering: medical groups average $461,000 and the self employed $497,500, against $428,500 for hospital employment (Marit Health).

Common Pitfalls