MSO and Professional-Entity Accounting for Med Spas: Management Fees, Intercompany and Clean Books

A med spa built on an MSO and a professional entity is two companies where the owner sees one business. Patients see one brand and one receipt; the accountant has to see two legal persons, two bank accounts, two payrolls, two tax returns and a contract between them that decides where every dollar lands. When the books ignore that, the structure the attorney built stops protecting anyone.

This guide covers the accounting side only: which books hold what, the management fee, intercompany, payroll and tax.

Why the structure exists, and where the accountant's job starts

The corporate practice of medicine doctrine is state law, and it varies: California requires a physician to own at least 51% of a medical practice, and Texas treats non-invasive aesthetic services as the practice of medicine. Where the doctrine is enforced, a nurse, an aesthetician or an entrepreneur cannot simply own the company that treats patients.

The usual answer is two entities. A professional entity, owned as the state requires (often a professional corporation or PLLC; the PC below), employs the clinicians and bills the patients. A management services organization, owned by the entrepreneur, provides the space, equipment, non-clinical staff, marketing and administration for a fee under a management services agreement, and may not direct clinical judgment. Whether your state and your ownership require it is a question for a health-care attorney. Once the agreement is signed, the accountant's job begins: books that follow the contract, a fee that is billed and paid, intercompany balances that reconcile, and two returns.

Two sets of books: what belongs in each

Each entity gets its own accounting file, its own bank account, and its own merchant account or a documented collection arrangement. One QuickBooks file with a "PC" class and an "MSO" class is not two sets of books; it produces one balance sheet, and a balance sheet by entity is what a regulator, lender or buyer asks for. The split below is typical, but the agreement controls; where it is silent, ask the attorney.

Retail is the line that most often needs a decision. Some agreements put skincare sales in the MSO because they are not medical services; others leave every patient dollar in the PC. Either way, the POS must report sales by entity.

The management fee: fixed, cost-plus or percentage

The fee is how the MSO is paid for everything it provides, and it is the number a regulator examines when asking whether the MSO is a disguised owner. Three forms are common.

A fixed fee is a set monthly amount, reset periodically against the MSO's actual costs; it is booked as a recurring MSO invoice and PC bill and is the easiest to reconcile. A cost-plus fee is the MSO's actual costs for the month plus a stated markup; the MSO closes its own books first, then bills the PC with the calculation attached. A percentage of collections or revenue is calculated from the PC's collections report. Percentage arrangements draw scrutiny in some states because they can resemble splitting professional fees with an unlicensed party, which is why the attorney, not the accountant, chooses the form.

Whatever the form, three things are non-negotiable in our practice: the fee is written in the agreement, it is invoiced every month from the MSO to the PC with the calculation, and it is paid by transfer from the PC's account to the MSO's on a schedule. A fee that is "booked" by journal entry and never paid accumulates as an intercompany balance, and a balance that grows every month is the first thing an examiner reads as a loan or a disguised distribution.

Intercompany accounts, cash between entities and the monthly reconciliation

Each file carries one intercompany account: Due to MSO in the PC and Due from PC in the MSO. Every transaction between the entities touches these accounts, and at month-end the two balances must be equal and opposite. A difference means a transaction hit one file and not the other, and the reconciliation is not finished until it is found.

Cash moves between the entities for three reasons: the management fee, which is an MSO invoice and a PC expense; reimbursements, when one entity pays a bill that belongs to the other; and loans, which need a note, a rate and a repayment schedule even between commonly controlled companies. Distributions never cross between entities; they go to the owner, and if the owner then funds the other entity, that is a contribution or a loan into it.

The classic failure is a shared bank account. The POS deposits into it, rent and payroll for both entities come out of it, and by month three nobody can say what either company owns. The fix is a second account, a cutover date and a reconstruction of who paid what. The med spa monthly close checklist shows where the intercompany step sits in the monthly routine.

One tax wrinkle belongs here. Under the accrual method, IRS Publication 538 says an expense owed to a related person who uses the cash method is not deductible until it is paid and included in that person's income. If the entities are related under the tax rules and the PC accrues a fee it has not paid by year-end, the deduction may wait; paying monthly makes the question moot.

Payroll: who employs whom

The clean version puts clinical staff on the PC's payroll and administrative staff on the MSO's. Injectors, nurse practitioners, laser nurses and any aesthetician whose services the state treats as medical belong in the PC; the front desk, practice manager and marketing coordinator belong in the MSO. Each employing entity needs its own payroll account, federal deposits and state registrations, including a Florida reemployment tax account.

Some agreements instead have one entity employ a wider group and lease them to the other. That works when the agreement provides for it, the leased wages pass through at cost or inside the fee, and clinical supervision stays with the licensed entity. It does not work as an afterthought, with the MSO paying the injectors because it had cash. Commission mechanics are in how to pay injectors and providers and apply unchanged inside the PC.

Taxes: two returns, the S-corp question and QBI

Two entities file two returns, and each chooses its own tax status. A professional corporation can elect S-corporation treatment if it meets the requirements on the IRS S corporation page: a domestic corporation with no more than 100 shareholders who are individuals, certain trusts or estates, and one class of stock. A physician-owned PC usually qualifies, and the MSO can elect too. In both, the owner who works in the business takes a reasonable salary before distributions.

The qualified business income deduction is where the entities diverge. Health is a specified service trade or business, so the PC's 20% QBI deduction phases out once the owner's taxable income passes the 2026 thresholds of $201,750 (single) or $403,500 (joint), over a $75,000 or $150,000 range. The MSO's status depends on the facts. It provides no medical services, but the IRS's QBI guidance treats a non-SSTB business that provides property or services to an SSTB under at least 50% common ownership as an SSTB for the common owners, to the extent of those services. An MSO owned by the same physician who owns the PC is caught; one owned by an unrelated entrepreneur generally is not. The QBI deduction guide covers the mechanics.

A worked example: one month in a two-entity practice

Take an illustrative practice with a physician-owned PC, an entrepreneur-owned MSO, a cost-plus fee of MSO costs plus 10%, and $150,000 of patient collections in October. The MSO's costs were $50,000 (rent $12,000, administrative payroll $20,000, marketing $9,000, software and merchant fees $4,000, device leases and insurance $5,000), so its fee invoice is $55,000.

The entries: the MSO records its invoice as a debit to Due from PC and a credit to management fee revenue for $55,000; the PC records the bill as a debit to management fee expense and a credit to Due to MSO. On the 5th the PC transfers $55,000 and both intercompany accounts return to zero. During the month the MSO also paid the PC's $1,200 malpractice installment by mistake: the MSO debits Due from PC, the PC books insurance expense and credits Due to MSO. At October 31 the PC owes $1,200, the MSO shows $1,200 receivable, the balances net to zero across the files, and the PC reimburses it in November. The intercompany schedule lists all four movements and is signed off before the period is locked.

Common mistakes

One bank account for two companies. A fee that is never invoiced, or is set each month at whatever is left in the PC, which looks like a profit split. The MSO paying injectors with no leasing provision. Prescription product bought on the MSO's card in a state that ties purchase to the license. One QuickBooks file with classes. An intercompany balance that has grown for eighteen months unreconciled. And two returns prepared by two preparers who never compare the intercompany line.

When to get help

If the structure exists and the books have never been split, start with a diagnostic of both files against the agreement; the reconstruction is usually a fixed project before the monthly work begins. If the structure is being drafted, bring the accountant in before the fee clause is final, because the fee form decides how both files close each month.

Balance Partners is a CPA-led accounting practice in Tampa that keeps the books, intercompany schedule and tax filings for medical aesthetics practices nationwide, including two-entity structures. See our med spa accounting and tax services and business tax planning and preparation pages, or request a 20-minute fit call and bring the management services agreement; we will tell you what the books need to look like to match it.

Jenny Gao, CPA, EA

Founder of Balance Partners. Florida-licensed CPA and IRS Enrolled Agent with more than a decade of accounting and tax experience. Jenny writes and reviews every guide on this site. About Jenny

This article is general educational information for U.S. business owners and is not accounting, tax, legal, payroll or financial advice for your situation. Rules change and vary by entity, state and facts. Balance Partners, LLC does not provide audit, review or other attest services. Last reviewed October 15, 2026.