A family medicine practice we work with had three ways of discounting the same visit. The front desk quoted uninsured patients "the cash price," which was whatever the last office manager had written on a sticky note. One physician waived balances for patients she knew were struggling, by telling the biller to "just write it off." And the practice had a prompt-pay discount that appeared in some statements and not others depending on who printed them. None of it was written down. When a payer auditor asked what the practice's usual charge for a 99213 was, three answers were true.
A sliding fee scale for a medical practice solves this by replacing three informal habits with one written policy: a full fee schedule that applies to everyone, a discount that depends on documented household income against the federal poverty guidelines, and an adjustment code that records every dollar given away and why. It is fairer to patients and far safer for the practice, because the rules that govern discounts (payer contracts, the Medicare beneficiary inducement statute, the No Surprises Act) all turn on whether the discount was applied consistently and documented.
A glossary line. The federal poverty guidelines are income thresholds by household size that HHS publishes each January; the 2026 guidelines took effect January 13, 2026, and set $15,960 for a household of one in the 48 contiguous states, rising $5,680 for each additional person. A sliding fee scale is a discount schedule in which the discount falls as income rises above those thresholds. A self-pay patient is one with no coverage for the service, whether uninsured or choosing not to use insurance.
Key takeaways
- Keep one fee schedule for all patients and apply discounts as documented adjustments; a separate lower "cash price" can become your usual charge in a payer's eyes.
- Base the sliding scale on household income against the current federal poverty guidelines, with income documented at enrollment and re-verified annually.
- Never routinely waive Medicare or Medicaid cost sharing; an individualized, documented financial hardship waiver that is not advertised is the only safe form.
- Self-pay patients are owed a good faith estimate under the No Surprises Act, and the discount policy should be reflected in it.
- Every discount gets its own adjustment code so the practice can report what it gave, to whom and under which rule.
Building a sliding fee scale for a medical practice
The federal Health Center Program, which funds community health centers, has required sliding fee discounts for decades, and its structure is a sensible model for a private practice: patients at or below 100 percent of the poverty guidelines pay a nominal flat fee, patients between 100 and 200 percent receive a graduated discount, and patients above 200 percent pay the full charge or a standard self-pay rate. A private practice is not bound by those rules and can set its own tiers, but the model is defensible and familiar.
Here is a version we have seen work for independent primary care practices, using the 2026 guidelines. The percentages are illustrative; the owners set them based on what the practice can afford, and a specialty practice with high-cost procedures may need a separate schedule for procedures.
| Household income as a share of the 2026 poverty guideline | Income range for a household of four | Discount from the full fee |
|---|---|---|
| At or below 100 percent | Up to $33,000 | Nominal flat fee per visit (for example $30) |
| 101 to 150 percent | $33,001 to $49,500 | 75 percent |
| 151 to 200 percent | $49,501 to $66,000 | 50 percent |
| 201 to 250 percent | $66,001 to $82,500 | 25 percent |
| Above 250 percent | Above $82,500 | No sliding discount; standard self-pay prompt-pay discount only |
A worked example. A self-pay patient in a household of four reports annual income of $46,000. Divided by the 2026 guideline of $33,000 for four, that is 139 percent of poverty, which lands in the 101 to 150 percent tier. A 99214 visit with a full fee of $240 is discounted 75 percent to $60. The claim is posted at $240, a sliding fee adjustment of $180 is recorded under the sliding-fee adjustment code, and the patient pays $60. If the same patient earned $58,000, the ratio is 176 percent, the discount is 50 percent and the patient pays $120. The arithmetic is the easy part; the practice has to do it the same way every time and update the table each January when HHS publishes new guidelines.
Documenting income without making patients give up
A sliding fee program fails in one of two ways. Either the documentation is so demanding that eligible patients do not bother, or it is so loose that the practice cannot show a payer or the OIG that any determination was made. The middle path is a one-page application that asks for household size and gross monthly income from all sources, with one form of proof: a recent pay stub, last year's tax return, a benefits award letter, or, when a patient has none of these, a signed attestation that the practice accepts for a limited period, say 90 days, pending documentation. The application is signed and dated, the staff member records the poverty percentage and the tier, and the determination is good for twelve months. Every patient who asks about paying gets offered the form; that is what makes the program a policy rather than a favor.
Two habits protect the practice. First, the determination is made before the discount is applied, not after a balance has aged, so that the file shows a decision and not a write-off. Second, the practice does not advertise the program in a way that could be read as an inducement to Medicare or Medicaid beneficiaries ("free care for seniors"); a plain statement that financial assistance is available based on income is fine, and is what most patients need to see before they ask.
Self-pay discounts, prompt-pay discounts and your payer contracts
Sliding fee scales are for patients who cannot pay. Self-pay discounts are for patients who can, and who pay in full at the time of service, sparing the practice statements, follow-up and collection risk. A prompt-pay discount of 10 to 20 percent is common, and the OIG has said discounts that reasonably reflect avoided collection costs are not a problem. The compliance risk is in how it is structured, not whether it exists.
The trap is the separate cash fee schedule. If the practice charges insured patients $240 for a 99214 and "cash patients" $140 as a standing price, a payer whose contract pays "the lesser of billed charges or the fee schedule" or refers to the practice's "usual and customary charge" can argue that $140 is the usual charge, and a few contracts still carry most-favored-nation language that entitles the payer to the lowest rate the practice gives anyone. Medicare, too, pays the lower of its fee schedule or the actual charge. The safe structure is a single fee schedule with the discount applied as a documented adjustment under a written policy: the charge is $240 for everyone, and the self-pay patient who pays today receives a 20 percent prompt-pay adjustment. Same cash out of the patient's pocket, entirely different position in an audit. Read the definitions and the most-favored-nation section of each payer contract before setting the discount; our RCM audits include this because the contract language is where the risk lives.
Medicare, Medicaid and the waiver problem
The rules tighten for patients with government coverage. Routinely waiving Medicare copayments and deductibles has been treated by the OIG as a potential false claim and a kickback since a 1994 fraud alert, and the beneficiary inducement provisions of the Civil Monetary Penalties Law prohibit offering remuneration that is likely to influence a beneficiary's choice of provider. The exception that matters for practices is narrow and specific: a waiver of cost sharing is permitted when it is not offered as part of an advertisement or solicitation, is not routine, and is made after a good-faith, individualized determination of financial need (or after reasonable collection efforts have failed). The sliding fee application is that individualized determination, which is why the same paperwork serves both the uninsured and the Medicare patient who cannot afford a $50 coinsurance. The program must not be advertised as a way to avoid cost sharing, and it must not be applied to every Medicare patient who asks.
Medicaid is different again. A Medicaid patient cannot be billed beyond the program's cost sharing at all, so there is nothing to discount, and a patient who appears to qualify for Medicaid is better served by help enrolling than by a sliding fee. Many practices build a screening question into the application for this reason. Medicare Advantage and commercial plans generally follow the same principle as Medicare on routine waivers, often through contract language, so the individualized-determination rule is the one to apply everywhere.
The good faith estimate and the codes that keep it honest
Since January 1, 2022, the No Surprises Act has required practices to give uninsured and self-pay patients a good faith estimate of expected charges when a service is scheduled (within three business days if scheduled ten or more business days ahead, one business day if scheduled three to nine days ahead) or on request. The estimate should show the discounted amount the patient will actually owe under the practice's policy, and if the final bill exceeds the estimate by $400 or more, the patient can take it to the federal patient-provider dispute resolution process. A written sliding fee policy makes the estimate easy to produce; an informal one makes every estimate a guess.
Finally, the codes. Every discount category gets its own adjustment code in the practice management system: sliding fee tier adjustments, prompt-pay adjustment, financial hardship waiver of cost sharing, and, separately, bad debt. With that in place the practice can run a monthly report of dollars adjusted by code and by patient, confirm that each sliding fee adjustment matches a current application on file, and show any auditor the policy, the determination and the adjustment for any patient in a few minutes. Practices that lump all of it into a generic "courtesy adjustment" cannot answer the first question an auditor asks. Adjustment code discipline is also a revenue leakage control; a discount nobody can explain is indistinguishable from a balance nobody worked.
Questions we hear
Can we offer the sliding fee to patients who have insurance but a huge deductible?
Yes, for the patient's own responsibility, with the same income documentation, subject to the payer's contract. Most commercial contracts allow hardship adjustments to patient balances after an individualized determination; some require reasonable collection efforts first. Check the contract and apply the same tiers.
Do we have to verify income, or can we take the patient's word?
A signed attestation is defensible for a short period when a patient has no documents, but a program built entirely on attestations is hard to defend as an individualized determination. Ask for one document, accept a range of them, and re-verify annually.
Is a flat "self-pay price list" on our website a problem?
It can be, if it is a second fee schedule. Post the full fee and the discount policy instead: "Our fee for a level 4 established patient visit is $240; self-pay patients who pay at the time of service receive a 20 percent discount, and income-based discounts are available on application." Same information, and it preserves the single fee schedule.
What to do this week
- Pull the last twelve months of adjustments coded as courtesy, cash discount or write-off and sort them by who authorized them; that is the size of the informal program.
- Draft the one-page sliding fee policy and application, with the 2026 poverty guideline table and the tiers the owners can afford.
- Create separate adjustment codes for sliding fee tiers, prompt-pay discounts and hardship waivers of cost sharing, and retire the generic courtesy code.
- Read the charge definitions and any most-favored-nation language in your five largest payer contracts before finalizing the self-pay discount.
- Update the good faith estimate template so it shows the discounted amount the self-pay patient will owe.
- Train the front desk on the script: every patient who asks about paying is offered the application, and nobody quotes a price from memory.
