From Employed Physician to Practice Partner: What Changes on the Money Side

You took the hospital job out of training partly because it was simple. Payroll ran itself. The health plan, the malpractice policy, the retirement match, and the tax withholding all lived in a benefits portal you logged into once a year. Then a private group recruited you, and two years in they put a partnership offer in front of you.

It's a good problem. It's also the moment when nearly every mechanical part of your household's money changes at once: how you get paid, who sends tax payments to the Internal Revenue Service, who buys your disability coverage, what happens to your malpractice history, and how much cash you need before a slow month arrives. Little of that is in the partnership agreement, because that document is about ownership, not about your family's cash flow.

You may also be doing this without many peers who've done it recently. According to the American Medical Association's Physician Practice Benchmark Survey, 42.2 percent of physicians worked in private practice in 2024, down from 60.1 percent in 2012. If you trained in hospital-employed settings, most of the physicians you'd naturally ask have never been partners either.

If you've had moonlighting or locums work along the way, two pieces will feel familiar: quarterly estimated tax payments and a thicker cash buffer. If your whole career has been W-2, both are new. And one item follows you out of the hospital job whether or not you're ready for it, which is tail coverage on your malpractice policy.

The Paycheck Stops Being a Paycheck

As an employee, your compensation arrived as W-2 wages. Your employer calculated withholding, took your share of Social Security and Medicare taxes, paid the matching employer share out of its own pocket, and sent it all in on a schedule you never had to think about. In April you filed a return that mostly reconciled what had already been paid.

As a partner, one of two structures usually applies, and which one you're in determines a surprising amount about your tax year.

If the group is a partnership or a limited liability company taxed as a partnership

Your income arrives as some mix of guaranteed payments and your share of the group's profit, and both show up on a Schedule K-1 (Form 1065) rather than a W-2. Guaranteed payments are amounts the partnership pays you without regard to how profitable the year was, which is how a regular draw often gets funded. The Internal Revenue Service covers both in Publication 541, Partnerships. You report the income on Schedule E and figure Social Security and Medicare taxes yourself on Schedule SE. Nothing is withheld. The money hitting your account is pre-tax money, and setting the tax aside is now your job.

If the group is an S corporation

You'll often stay on a W-2 for part of your pay, described in the tax rules as reasonable compensation, with the rest arriving as a shareholder distribution on a Schedule K-1 (Form 1120-S). Withholding continues on the wage portion, and the distribution portion generally isn't subject to self-employment tax, which is the main reason the structure gets used. We walk through the same trade-offs for physicians with independent income in our piece on S-corp versus sole proprietor structures.

So one question belongs early in the conversation with the group's administrator: which of these am I actually joining? The expensive version of that mistake is assuming withholding is still happening when it isn't, which surfaces in April.

Who Sends the Tax Payments Now

When income stops being withheld on, the federal system expects you to pay as you earn rather than settle up once a year. The Internal Revenue Service explains in its guidance on estimated taxes that partners and S corporation shareholders generally need to make estimated payments if they expect to owe $1,000 or more at filing. There are four payment periods, with due dates generally falling in April, June, September, and the following January.

The exact tax owed is the natural thing to focus on, but the number that governs the penalty is different. Under the safe harbor rules you can generally avoid an underpayment penalty by paying at least 90 percent of the current year's tax, or 100 percent of the prior year's tax, rising to 110 percent if your prior-year adjusted gross income was over $150,000. At an attending income you're generally in the 110 percent lane, which has one useful property: the prior-year tax is a known number, so the target can be set in January and divided by four.

A first partnership year complicates that, because your prior year was a W-2 year and the safe-harbor amount may be far smaller than what you'll owe. Paying the safe harbor can keep the penalty away while still leaving a large balance due in April. One approach is to run a second calculation of the real liability and hold the difference in a reachable account. Your accountant is the right person to run that number, and the earlier you ask, the more time there is to adjust.

Self-Employment Tax and the Half the Hospital Used to Pay

Here's the piece that's easiest to miss. As a W-2 employee you paid half of Social Security and Medicare taxes and your employer paid the other half. As a self-employed partner, both halves are yours. The Internal Revenue Service describes self-employment tax as a combined 15.3 percent rate, 12.4 percent for Social Security and 2.9 percent for Medicare, applied to 92.35 percent of net earnings from self-employment.

Two details soften the shock. The Social Security portion applies only up to an annual cap; the Social Security Administration sets that contribution and benefit base each year, and for 2026 it's $184,500, so at a physician income you cross it early and the 12.4 percent stops. You can also deduct one-half of your self-employment tax when figuring adjusted gross income.

One detail doesn't soften. The 2.9 percent Medicare portion has no ceiling, and above $200,000 of income ($250,000 if you're married filing jointly) an Additional Medicare Tax of 0.9 percent applies on top. That uncapped piece runs all year, and it's the part most often missing from a first-year payment schedule.

This is also where the S corporation structure earns its complexity. A distribution rather than wages generally escapes self-employment tax, but that has to be weighed against the reasonable compensation requirement and against how much wage income your retirement plan contributions depend on. It's a conversation with the group's accountant, there's no rule of thumb.

What a Buy-In Actually Buys

The word "buy-in" gets used as though it means one thing. What you're purchasing varies enormously from group to group, and the number means little until you know what's behind it.

Some groups price it around hard assets: equipment, leasehold improvements, the imaging suite. Some include a share of accounts receivable, money already earned by the practice but not yet collected. Some include goodwill, a value assigned to the practice's name, referral relationships, and earnings history. And the building often sits in a separate real estate entity with its own buy-in, on its own terms.

Those components behave differently. Receivables convert to cash on a fairly predictable timeline. Equipment depreciates. Goodwill is a judgment call built on assumptions about future earnings, and what it's worth on the way out depends on how the agreement pays departing partners. Two groups can quote similar figures while offering very different things.

Financing varies just as much. Some groups carry the note themselves and withhold a portion of your distributions until it's paid. Some expect a bank loan. Some structure it as reduced compensation over a defined number of years, which is still a buy-in even though no money changes hands at signing. The Small Business Administration's 7(a) loan program is another path some practices use; it permits financing of partial changes of ownership, including intangible assets like goodwill, subject to lender and valuation requirements.

Each path lands differently on your monthly cash flow, on your debt-to-income ratio if you're carrying a mortgage, and on what happens if you leave early. Nobody can price the buy-in for you from the outside, but what the payment does to your household over the next several years, alongside the student loans and the college savings, can be mapped before you sign.

The Retirement Plan You Land In

Your hospital 403(b) or 401(k) doesn't come with you. The group has its own plan, and its design was set by the existing partners, so it reflects their ages, incomes, and priorities rather than yours.

A few things commonly differ. The employee deferral limit is the same everywhere, but employer contributions aren't. A small group's plan may include profit sharing, sometimes allocated in ways that favor older or higher-paid participants, and vesting schedules vary. If you had a 457(b) at the hospital, that's generally not an option in private practice. Whether that matters depends on which kind it was. A governmental 457(b) is a straightforward deferral account that can generally be rolled over like other plan money. A non-governmental one is a different animal: the balance stays an asset of the employer and subject to the employer's creditors, and distributions follow a schedule the plan sets and you elected in advance. That forfeiture risk is worth weighing before contributing to a non-governmental plan at all, and it's worth knowing which kind you have before you give notice.

It can also expand. Practices with steady profits sometimes add a cash balance plan, a defined benefit plan that can allow tax-deferred contributions well above what a 401(k) alone permits, with the allowable amount rising with age. These carry real obligations, including a funding commitment over a period of years. If your new group has one, your required contribution and how long the commitment runs are part of reading the offer.

There's also the account you're leaving behind. The hospital 403(b) or 401(k) balance stays put unless you move it, and whether consolidating helps depends on the costs and investment choices in each plan, on creditor protection rules in your state, and, if you've been doing backdoor Roth contributions, on whether a rollover into an Individual Retirement Account would create a pro-rata problem you didn't have before. The pro-rata rule treats all of one person's traditional Individual Retirement Accounts as a single pool when figuring the tax on a conversion. A non-governmental 457(b) is the exception to all of this, because that balance generally can't be rolled anywhere and comes out on the schedule the plan sets.

Benefits That Used to Come Out of Payroll

Employee benefits can feel free, because the cost is invisible. Your hospital was paying most of the premium for family health coverage, probably providing group life insurance, often some group disability coverage, and running it through payroll pre-tax where the rules allowed. None of that vanishes when you become a partner, but the economics change and the responsibility shifts toward you.

Health coverage is usually the largest line. A small group's plan may carry higher premiums, a narrower network, or a higher deductible, since a practice with twelve physicians has less purchasing power than a system with twelve thousand employees. If the hospital coverage ends before the group's starts, continuation coverage under COBRA (the Consolidated Omnibus Budget Reconciliation Act) is one bridge; the Department of Labor's worker's guide to health benefits under COBRA explains how it works, including that the plan can charge up to 102 percent of its cost.

Disability coverage deserves its own look, because group and individual coverage aren't the same product. Employer group policies often define disability more narrowly than an own-occupation policy does, meaning one that pays if you can't perform your own specialty. They may also cap the monthly benefit well below a specialist's income, and they end when the employment does. An individual own-occupation policy generally stays with you regardless of employer. If you've been relying on the hospital's group coverage, this is often where the coverage in place stops matching the income it's meant to protect.

Life insurance follows the same pattern. The multiple-of-salary group policy generally ends with the job, though it may carry a conversion right that expires quickly, while any individual term policy you own is unaffected. One tax detail is worth raising with your accountant: as a partner, health premiums and certain other benefits may be treated differently than they were pre-tax through payroll, changing the after-tax cost of identical coverage.

Malpractice Coverage and the Tail Question

Two policy types dominate. An occurrence policy covers incidents that happen while the policy is active, no matter when the claim is filed. A claims-made policy covers claims filed while the policy is active, so when it ends, coverage for everything you did under it can end too. Extended reporting (tail) coverage fills that gap, and it can cost a substantial multiple of an annual premium.

Leaving the hospital raises the first question: does your employment agreement say the hospital buys the tail, or do you? Some contracts pay for it, some split it, some make it yours unless you stay a defined number of years. Joining the group raises the second: does the group buy tail coverage for departing partners, and is that promise in the partnership agreement or just a habit? Those aren't the same thing.

There's a prior-acts question, too. When you move to the group's carrier, whether your earlier work is picked up depends on whether prior acts coverage is included and how it's written. If you assume continuity, you may find a window of years covered by neither policy.

A Draw That Moves With Production

A salary is a promise. A partner draw is a forecast. The practice collects, pays overhead, services its debt, sets aside what it needs, and distributes what's left per the formula in the partnership agreement. Your income is now the residual of a business, and residuals move.

Several things push it around. Collections lag the work by weeks or months, so a strong clinical quarter shows up in your distributions later. Payer mix shifts. A partner retires or a new hire ramps up slowly, and overhead per physician moves. Practices commonly hold back a portion of distributions and true up at year end, so a meaningful share of your income may arrive in one or two lumps. Vacation now has a direct cost, since weeks you're not working are weeks you're not generating collections.

The household consequence is that the reserve you kept as an employee may no longer be the right size. Our discussion of emergency reserves for physician households starts from fixed costs over a four-to-six-month window. A partner's version usually adds two layers: money set aside for estimated taxes, which isn't yours even though it's in your account, and a buffer for the swing between a light month and a heavy one. Keeping those separate makes it easier to tell a good month from a month that simply collected well.

Employed and Partner, Side by Side

Here's how the same items typically look on each side of the transition. The right-hand column describes what's common in physician groups, not what's universal, since partnership agreements differ widely.

Entity Questions That Surface Later

Once you own a piece of a practice, structural questions appear that never came up as an employee. Should some of your income run through a professional entity of your own? Would an S corporation election make sense for it? If the group's real estate sits in a separate limited liability company, how does that interest fit with the rest of your finances?

These rarely have universal answers, and they're seldom urgent on day one. In our experience they surface as problems rather than as a tidy project: a tax bill larger than expected, a retirement plan contribution limited by how wage income was structured, a state filing nobody flagged. We step in when something like that comes up rather than running a standing process for entity structure, and the work usually happens alongside the group's accountant, who knows how the practice is set up.

Reading the Buy-In Before the Deadline

The buy-in document usually arrives with a response date attached, and the window is often shorter than the decision needs. That leaves little time to map what the payment does to the household. For twenty-five years our work has been with physician families. The questions in this article come up on this transition again and again: what the K-1 will look like, what the estimated payments need to be in a year with no prior-year baseline, who owns the tail, and how the buy-in note sits alongside the mortgage and the 529 college savings accounts. If you'd like to work through your own version of those numbers with a CFP® professional before the date on the document, you can start at physicianfamily.com/start.

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