What is contingency (percentage-of-collections) billing for a mental health practice, and what does it cost?

What is percentage-of-collections billing?

It is a pricing model where you pay your billing company a percentage of what it actually collects, rather than a fixed fee. The two common alternatives are a flat monthly retainer and a per-claim fee, and the difference is what you are paying for: activity, or money in the bank.

Under a per-claim model you pay a set amount every time a claim is submitted — commonly $3 to $10 per claim — whether or not it gets paid. Under a flat retainer you pay the same number each month regardless of what comes in. A percentage ties the cost to the collected dollar instead, so the company earns when you do.

That alignment matters most for the work nobody is paid to do under the other models: the rejection that has to be corrected and resent, the denial that needs an appeal, the claim that has been sitting at the payer for ninety days. A per-claim biller is paid to submit. Whether the claim is ever paid is, from a pure incentive standpoint, someone else’s problem — and the AHIMA Journal reports the industry average that as many as 60% of returned claims are never resubmitted— a ceiling, not a range, and one the journal repeats from trade reporting rather than a measurement anyone took. “Returned” there means kicked back before adjudication, which is narrower than every denial.

What does it cost for an outpatient mental health practice?

Expect roughly 4% to 10% of collections, with most practices in the 5% to 7% band. Where you land is driven by your claim volume, your payer mix, and how much work is bundled into the percentage — so it is reasonably predictable once you know your own numbers.

Two independent reads put the range in the same place, and it is worth being precise about what each one actually is. Tebra’s guidance for billing companies puts the typical range at 4% to 10%; separately, its 2022 survey found that 24.5% of the billing companies using percentage-based pricing charged 6% to 7%. Physician Side Gigs describes the same 4% to 10% span and reports that the majority of private practices in its physician communities say they are charged 5% to 7%. Its breakdown puts high-volume practices at the lower end and, at 7% to 10%, “typically smaller practices, or when many additional services are included, such as coding services, denial management, or more complicated revenue cycle and accounts receivable services.”

Read those for what they are. One is a software vendor’s guidance alongside a survey of billing companies; the other is self-reported by physicians in an online community, on a page that also carries an affiliate referral to a billing company. Neither is a random sample, and neither is specific to behavioral health — no credible mental-health-specific pricing survey exists, which is the same data gap our benchmarks guide runs into on denial rates and days in A/R. Treat 4% to 10% as the general physician-practice market, not a mental-health number.

Where outpatient mental health sits inside that range is our own read rather than a sourced finding, but the mechanics are checkable. The claims are small and numerous — a practice bills a great many individual sessions rather than a few large episodes — so the labor a biller spends per claim is high relative to the dollars on it. Behavioral health carve-outs mean the plan on the card is often not the entity that pays the claim. Telehealth place-of-service and modifier rules have changed repeatedly and are a routine source of rejections. And the payer mix moves the number: Medicaid and managed-Medicaid work is generally more labor per collected dollar than commercial work. A small practice being quoted 8% is not necessarily being taken advantage of; a large one paying 8% probably is.

A percentage of what — gross collections, net, or only insurance payments?

This is the number that actually decides your cost, and it is the one buyers skip. The same headline rate can mean materially different invoices depending on the base it is charged on. Read the base before you compare two quotes.

Gross vs. net: a percentage of gross collections is taken off every dollar that comes in the door; a percentage of net collections is taken after refunds, adjustments, and write-offs. Insurance vs. everything: ask whether patient payments count — copays, coinsurance, deductible balances, and self-pay sessions. In an outpatient practice that can be a large share of revenue, and a percentage charged on money your front desk collected at check-in is a different deal from one charged on the claims the company actually worked. Ongoing vs. recovered: a full-service percentage covers everything collected from here forward, including money you would have collected anyway. Work on old balances — the receivables that already existed before the company took over — is usually a separate arrangement, priced on what is actually recovered.

That last split is worth insisting on. Bundling a legacy A/R pile into an ongoing percentage means paying an ongoing rate on money that took disproportionate work to collect, or watching it quietly go unworked because nobody is paid enough to chase it. Kept separate and priced on recovery, the incentive is unambiguous: the old claims get worked because that is the only way anyone is paid for them — and what happens to that old pile when you switch is worth settling before you sign, not after.

What should be included in the percentage — and what usually isn’t?

A full-service percentage should cover the whole path from eligibility to payment: coverage checks, claim creation and submission, clearinghouse rejections, claim status and follow-up, payment posting and reconciliation, denials and appeals, secondary claims, payer enrollment, and reporting. Every one of those that sits outside the percentage is a cost you have not counted yet.

The items most often carved out are the expensive ones. Denial management is the big one, and the market is fairly open about it: Physician Side Gigs puts it among the “additional services” that move a practice into the 7% to 10% tier. So a lower quote is not automatically a better deal — it may simply be a quote without appeal work in it, which leaves the labor-intensive half of the job with you. Clearinghouse and transaction fees are frequently passed through as a separate line. So are per-claim or per-statement charges layered on top of the percentage, patient statements and balance follow-up, and payer enrollment for electronic remittance. Coding and credentialing are genuinely separate services and are usually priced as such.

It is worth knowing how rarely a denial gets challenged at all. In KFF’s analysis of 2024 HealthCare.gov data, insurers denied about 19% of in-network claims, and consumers appealed fewer than 1% of those denials. That figure covers ACA-marketplace plans and patient-initiated appeals — it is not a measure of what a billing company does, and your payer mix is not HealthCare.gov. Read it as evidence that denials mostly go unchallenged by default, not as a benchmark for your biller.

The practical test is to ask for a sample invoice rather than a rate. A percentage plus four line items is not the percentage you were quoted, and the gap tends to be widest exactly where the work is hardest.

Is a rate under 4% a red flag?

It is the right question to ask. The most direct answer in print is Physician Side Gigs’, and we will quote its under-4% tier in full rather than paraphrase it, because we sit in that tier: such rates are “usually more basic services (less incentive to chase collections); may be AI based or without a significant amount of operational presence in the United States.”

Read that carefully, because it names three different things and one of them is automation itself. That source treats an automated service as a warning sign, not as a reassuring explanation — and for a company staffed the traditional way, the arithmetic behind that warning is sound. The percentage has to cover a person’s time, and below some rate it cannot.

So the question to put to anyone quoting below the market range is not “why so low” but what got cheaper — and the three answers are distinguishable if you ask. The scope got smaller and the cost moved somewhere you have not looked yet: appeals excluded, clearinghouse fees passed through, per-claim charges on top, or nobody works a claim after the first rejection. The labor moved offshore, which is not disqualifying on its own but changes who you reach and when. Or the routine, repetitive work genuinely stopped being done by hand — eligibility checks, submission, acknowledgments, status, posting.

Four questions separate them, and you should ask all four rather than accept a rate. Who works a denial, and when? Where are the people who work my claims? What is on the invoice besides the percentage? And what happens to a claim that comes back with a reason code on a Friday? A low rate paired with vague answers is the red flag. A low rate paired with specific ones is a different cost structure.

Our own answer, since we are in the tier being warned about: Recoup charges 3% of the insurance payments we collect, with a $1,000 monthly minimum. That is below the market range for the third reason above — the routine transaction work runs on automated clearinghouse connections instead of a room of billers keying claims, so the percentage does not have to cover that labor. What the source warns about is automation that replaces the chasing; a person still works every exception here, every claim is reviewed before it goes out, and old balances are handled under a separate agreement where we are paid only on what we actually recover. On the staffing question, ask us directly and we will tell you — you should not take a published assurance on that from anyone, including us. The whole price is published — including the parts below.

How does a percentage compare to billing in-house?

It converts a fixed cost into a variable one. An in-house biller costs the same whether or not the money comes in; a percentage costs more when you collect more and less when you collect less. Which is better depends less on the rate than on your volume and on what happens when the work gets hard.

The honest case for in-house is scale and control: at high, clean, predictable volume, a salaried biller can cost less than a percentage of every collected dollar, and the person is yours. The honest case against it is concentration and triage. One biller is a single point of failure — vacations, turnover, the week the practice is short-staffed — and when the day is full, submitting new claims always beats working old denials, because new claims are how this month gets paid. The denials age quietly. That triage dynamic is our own explanation, not a sourced finding — but it is a plausible route to the returned claims the AHIMA Journal says go unresubmitted, and it is worth weighing against the fact that the same article puts the cost of reworking a denied claim at an average of $25 per claim for practices — the $181 figure quoted alongside it is the hospital number, not a practice one.

The comparison also is not really rate-versus-salary, because the two arrangements often collect different amounts. Before you compare cost, compare what each arrangement actually collects — net collection rate, days in A/R, the share of A/R over 90 days, denial rate. A percentage that costs two points more and collects five points more is the cheaper option.

What should you check before you sign?

The headline percentage is the least important line in the contract. The base, the minimum, the scope, and the exit terms decide what you pay and how easily you can leave if it goes badly.

The base: gross, net, insurance-only, or everything collected — 5% on gross is more than 5% on net. Minimums and floors: ask whether there is a monthly minimum and at what collections level you clear it. A minimum is not automatically a bad sign — below some volume a percentage does not cover the work, and a company that admits this in a number is being more honest than one that quietly under-serves small accounts — but you should know the number before you sign, not after a slow month. What is included: denials and appeals especially, plus clearinghouse fees, payer enrollment, patient balances, and reporting.

The transition: who works the claims already in flight, what happens to the A/R that predates the contract, and at what rate. This is where revenue is most often lost when practices switch, and it should be written down — as should what has to change in your own systems, which is less than most practices expect. Exit terms: the notice period, whether there is a term to buy out, and what happens to your data and your payer enrollments if you leave. Government payers and state rules: percentage-based compensation can raise fee-splitting and compliance questions that vary by state and by payer, and they are a matter for your own counsel rather than for a vendor’s reassurance — ours included. It is a fair question to put to any billing company, and a fair one to put to us. Visibility: what you will actually receive each month — what was billed, what was paid, what is being worked, and what was written off.

Key takeaways

• Percentage-of-collections (contingency) billing means paying a share of what is actually collected — not a flat retainer and not a per-claim fee.
• For outpatient mental health practices it typically runs about 4% to 10% of collections, most commonly 5% to 7%; claim volume, payer mix, and bundled scope move you within the band.
• The base matters as much as the rate: gross, net, insurance-only, or everything collected are different deals at the same headline number.
• Old A/R that predates the contract is usually its own arrangement, priced on what is actually recovered — keeping it separate is what gets it worked.
• A rate under 4% is a question, not a verdict: ask what got cheaper — the scope, or the labor. Excluded appeals and pass-through fees are the tell.
• Before signing, check the base, the monthly minimum, what is included (especially denials and appeals), the transition plan for existing A/R, and the exit terms.