How much does medical billing cost?
Outsourced medical billing typically costs 4–8% of net collections, with larger practices and high-value specialties at the lower end. In-house billing costs roughly $73,000 per biller annually once benefits are included, plus software, clearinghouse fees and management time — which is why per-biller salary alone understates the true cost of the function.
The three pricing models
Almost every billing arrangement falls into one of three structures, and they distribute risk very differently.
| Model | Typical range | Who carries the risk |
|---|---|---|
| Percentage of net collections | 4–8% of collections | The billing company — it earns only on what it collects |
| Flat fee per claim | $4–$8 per claim | The practice — the fee is owed whether the claim pays or not |
| Fixed monthly retainer | Varies by scope | The practice — cost is fixed regardless of volume or performance |
Why percentage of collections is the common default
Under a percentage model the vendor is paid on money that actually arrives. A denied claim that is never overturned earns the vendor nothing, which aligns their incentive with the practice's on exactly the work that matters most — appeals, AR follow-up and underpayment recovery.
Per-claim pricing inverts that. The fee is earned on submission, so a claim submitted and denied has already been billed for. The vendor's incentive is throughput; the practice's is collection. Those are not the same thing.
The honest caveat on percentage pricing is that it scales with your revenue rather than with the work. A practice whose collections grow substantially without a matching increase in claim volume will pay more for the same effort, which is usually a good problem and occasionally worth renegotiating.
What in-house billing actually costs
The comparison most practices run is a billing salary against a percentage fee. That understates in-house cost, because a salary is the smallest line in the function.
US Bureau of Labor Statistics data puts the fully loaded annual cost of one medical records specialist at roughly $73,000 — a median wage of $51,140 plus benefits averaging 29.9% of total compensation. That is one person, before anything else the function requires.
- Practice management and clearinghouse software, billed per provider or per claim.
- Coding credentials and continuing education — CPT and ICD-10 change annually.
- Management time spent supervising billing, which is usually a practice manager's or physician's time.
- Coverage risk: when the biller is on leave or resigns, collections stop. In a one-person billing department this is a single point of failure on the practice's entire cash flow.
- Denial and AR work that gets deferred when the queue is full, which does not appear as a cost line but shows up as aged receivables.
The administrative load behind the number
CAQH's index, covering more than 600 provider organisations and health plans, measures roughly 70 minutes of administrative work per patient visit across eligibility, claims, status inquiry and prior authorization.
The distribution inside that figure is instructive. A single claim status inquiry made by phone consumes 25 minutes of staff time — the most time-consuming transaction CAQH measures — while electronic eligibility verification represents an $11.7 billion annual savings opportunity industry-wide, the largest of any administrative transaction.
This is why billing cost is better understood as a function of process quality than of headcount. A practice making status inquiries by phone is buying the same outcome as one checking electronically, at many times the labour cost.
How to compare two quotes honestly
A percentage is not comparable to another percentage until you know what each one includes. The questions that actually separate offers:
- Is the percentage taken on net collections or on gross charges? Gross-charge pricing is not comparable and is almost always more expensive.
- Are denial appeals and claim rework billed separately, or included?
- Is there a setup, onboarding or integration fee?
- Who works aged AR, and is a historical backlog inside the same rate or scoped separately?
- What is the termination clause, and who owns the data on exit?
- Is patient billing and patient support included, or a separate line?
What a percentage rate includes, and what it usually does not
Two vendors quoting 6% can be quoting materially different services. The rate is the visible number; the scope is where the actual cost sits. Before comparing rates, establish which side of the line each item falls on.
| Item | Commonly included | Commonly billed separately |
|---|---|---|
| Claim submission and payment posting | Yes | — |
| Denial rework and first-level appeals | Usually | Second-level and external appeals |
| Clearinghouse fees | Sometimes | Often passed through per claim |
| Patient statements and postage | Rarely | Per statement, plus postage |
| Credentialing and payer enrollment | Rarely | Per provider, per payer |
| Coding from documentation | No — usually assumes coded charges | Priced separately per encounter |
| Practice management software licence | No | Practice retains its own contract |
| Implementation and data migration | Sometimes waived | One-time fee |
Where the break-even between in-house and outsourced actually sits
The comparison practices usually run is billing salary against the percentage fee, and it produces the wrong answer because it compares one line item to a whole function.
A fully loaded biller costs roughly $73,000 annually once employer taxes and benefits are counted, per Bureau of Labor Statistics wage and compensation data. Add clearinghouse fees, the share of practice management software attributable to billing, and the management time spent supervising the function. Then add the costs that only appear when something goes wrong: the vacation with no cross-trained backup, the resignation that leaves AR unworked for six weeks, the denial category nobody has the specialty knowledge to appeal.
The honest framing is capacity rather than cost. One biller can sustain a certain claim volume; the second hire is a step change, not a gradual one, and it arrives well before the practice feels ready. Outsourced pricing scales continuously with collections, which is why the models tend to converge for small practices and diverge for practices sitting just past a headcount threshold.
The contract terms that matter more than the rate
A percentage point of difference is worth less than most of the terms below, and the terms are where a cheap quote becomes an expensive relationship. Our buyer’s guide at /resources/choosing-a-medical-billing-company sets out the full evaluation sequence and the twelve questions worth sending before a first call.
- What the percentage is calculated on — net collections received, not charges submitted or claims worked
- Whether patient payments and copays collected at the desk are included in the fee base
- Notice period and whether it can be served at any time or only at renewal
- Who owns the data on exit, in what format, and within how many days
- Whether AR outstanding at termination continues to be worked, and at what rate
- The reporting cadence, and whether denial detail is included or only summary collections
- Named escalation contact and response time, rather than a shared support queue
- Whether a signed HIPAA business associate agreement is provided without being asked for
The cost that does not appear on either quote
Premier's analysis puts the average cost of contesting a single denied claim at $57.23, up 31% in a single year. Optum's index of 124 million claim remits found 84% of denials are potentially avoidable.
Those two numbers define the real spread between a cheap billing arrangement and a good one. A vendor whose denial rate is two points higher than another's is not cheaper at the same percentage — the difference simply moves from the invoice to the AR report, where it is harder to see.
Which is the argument for evaluating billing cost on collected revenue rather than on rate. A practice paying 7% and collecting 97% of what it bills is materially better off than one paying 4% and collecting 88%.
Frequently asked questions
- How much does outsourced medical billing cost?
- Typically 4% to 8% of net collections, with larger practices and higher-value specialties at the lower end of that range. The percentage alone is not comparable between vendors, because scope varies — patient statements, credentialing, clearinghouse fees and coding are frequently billed separately rather than included in the headline rate.
- Is in-house billing cheaper than outsourcing?
- It depends on volume, and the comparison is usually made incorrectly. A fully loaded biller costs roughly $73,000 a year once benefits and employer taxes are included, before software, clearinghouse fees and management time. Because in-house capacity moves in whole headcount steps while outsourced pricing scales with collections, the two models converge for small practices and separate sharply just past a hiring threshold.
- Should the billing fee be based on charges or collections?
- Collections, always. A percentage of charges pays the vendor whether or not the claim is ever paid, which removes their incentive to work denials and appeals. A percentage of net collections received aligns the vendor with the practice, because the vendor earns nothing on a claim that does not pay.
- What is a flat per-claim billing fee, and when does it make sense?
- A fixed amount per claim submitted, independent of the claim’s value. It suits practices with high claim volume at low average value, where a percentage model would cost more than the work warrants. It suits high-value specialties poorly, because the vendor earns the same on a claim worth $80 and one worth $8,000 and has no financial reason to pursue the larger one.
- What hidden costs should be checked before signing?
- Implementation and data migration fees, per-statement and postage charges, clearinghouse pass-throughs, credentialing priced per provider per payer, and the terms governing exit — specifically who owns the data, in what format it is returned, and whether outstanding AR continues to be worked after notice is served. Exit terms are the most commonly overlooked and the most expensive to discover late.
Sources
The primary sources behind the rules described above.
- MGMA DataDive and MGMA Stat (opens in a new tab)
Medical Group Management Association — The practice-level operations benchmarks — days in AR, denial rate, cost to collect — that physician groups are actually measured against.
- CAQH Index: cost of administrative transactions (opens in a new tab)
CAQH — Per-transaction cost of eligibility checks, claim status inquiries and prior authorization, manual versus electronic. The best public evidence for automating front-end work.
- MAP Keys revenue cycle metrics (opens in a new tab)
Healthcare Financial Management Association — Standard definitions for revenue cycle KPIs. Worth reading precisely because HFMA defines the metrics without publishing public target values — a distinction most vendor marketing ignores.