The short answer: The federal administrative fee for independent dispute resolution, or IDR, under the No Surprises Act fell from $115 to $15 per party per dispute for disputes initiated on or after June 11, 2026. That lowers the cost of entry, not the cost of losing. The certified IDR entity fee is separate, runs into the hundreds and is generally paid by the non-prevailing party. A 50-line-item batching limit is forthcoming, applying to disputes with open negotiation periods beginning on or after Nov. 1, 2026, and several other provisions are not yet in effect. Advantum Health helps practices identify which out-of-network claims are worth pursuing and file them through the correct process.
Scope note. Federal IDR applies only to certain out-of-network items and services covered by the No Surprises Act. It is not a general appeal path for every out-of-network claim, and state law controls some disputes. Confirm current requirements against the federal No Surprises Act notices page before filing.
Why this matters: your write-off list is out of date
Every practice with out-of-network volume has a category of underpaid claims nobody works. Not because the payment was correct. Because the math did not clear. At $115 per party, a claim worth a few hundred dollars was not worth the fee, the staff hours and the risk of losing. So it was written off, and the write-off hardened into policy.
That threshold moved on June 11, 2026.
The Departments of Health and Human Services, Labor and the Treasury finalized an administrative fee of $15 per party per dispute, regardless of the amount in dispute or the dispute’s eligibility. Claims that were rationally abandoned at the old fee may now clear the bar.
The revenue at stake is documented. In 2025, providers prevailed in roughly 85 percent of federal IDR disputes that reached a payment determination, with a median award of more than four times the qualifying payment amount, according to researchers at Georgetown University’s Center on Health Insurance Reforms. That figure covers decided disputes, not every dispute filed, which is why eligibility discipline matters as much as the merits. Dispute volume rose 77 percent from 2024 to 2025, and the lower fee is expected to push it higher.
The $15 is the smallest number in the transaction.
What changed, and when
Four provisions matter to a practice administrator. They phase in on different dates, and one of them is not live yet.
The administrative fee. $15 per party per dispute for disputes initiated on or after June 11, 2026. It is non-refundable, and it applies even when the dispute is later deemed ineligible.
The certified IDR entity fee. Separate, and unchanged by this rule. For 2026, certified entities set fixed fees within ranges of $200 to $840 for single determinations and $268 to $1,173 for batched determinations. The non-prevailing party generally pays. This is the number that decides whether a dispute is worth filing.
Batching, forthcoming. Qualified items may be grouped under three pathways: a single patient encounter billed on the same claim form, items billed under the same or a comparable service code, or anesthesiology, radiology, pathology and laboratory items within the same Category I CPT code section. No batch may exceed 50 line items, and this applies to disputes with open negotiation periods beginning on or after Nov. 1, 2026.
What is not live yet. The rule also rewrites the open negotiation notice process, adds a response notice due by the 15th business day and requires certified IDR entities to determine eligibility within five business days of final selection. None of it applies yet. Those provisions take hold 90 calendar days after the Departments announce the supporting IDR Gateway functionality, which CMS expects to build out through 2027.
Two structural changes sit underneath. Payers must register with the Departments and receive an IDR registration number, and must use specified claim adjustment reason codes and remittance advice remark codes to signal whether a claim falls under the No Surprises Act. Both operate on schedules the Departments will announce. Account creation in the federal IDR Gateway, the platform replacing single-use web forms, opened Sept. 15, 2026.
Which out-of-network claims qualify for federal IDR?
Eligibility depends on the service, the setting, the coverage and applicable state law, not on whether the practice is out of network. Federal protections generally cover emergency services, air ambulance services and certain non-emergency services furnished by an out-of-network provider at an in-network hospital, hospital outpatient department or ambulatory surgical center.
A routine service furnished at a practice’s own out-of-network office does not automatically qualify, and some payment disputes are governed by a state process rather than the federal one. Before placing a claim on the IDR calendar, confirm that federal rather than state rules control, and that the notices and remittance information on file support eligibility.
The math that decides which claims to pursue
Four inputs, in order.
Eligibility. Does the No Surprises Act cover the item, and does federal IDR control the dispute rather than a state process? In 2025, payers challenged eligibility in 41 percent of disputes and certified IDR entities ruled 18 percent ineligible. An ineligible dispute still costs the fee and the hours that produced it.
Total cost. Add the administrative fee, the certified IDR entity fee you would owe if you lose and the labor to assemble the submission. Compare that to the distance between the payer’s offer and a defensible amount.
Batch construction. Batching may improve the economics of eligible lower-value claims, but model the certified entity’s applicable fixed and tiered fees rather than assuming a batch is cheaper. Batched determination fees are tiered, so more line items can mean a higher fee as well as a lower cost per item. The batch must also satisfy a finalized pathway. Same payer and same quarter is not a pathway.
Documentation. Record the qualifying payment amount the payer reported and the date it was reported. QPA methodology has been litigated repeatedly since the law took effect. A dated input survives a methodology change. A remembered number does not.
Where practices lose money on this
Filing without an eligibility screen. Volume without discipline produces ineligible disputes, and the administrative fee is due either way.
Building for rules that are not live. The response notice and the five-business-day eligibility review arrive 90 calendar days after CMS announces Gateway functionality, not on the rule’s effective date. Watch the notices page, not the calendar.
Batching by convenience. Grouping claims because they share a payer or a service line, rather than a finalized pathway, puts the whole batch at risk.
A checklist for practice administrators
- Create your federal IDR Gateway accounts and name at least one administrator.
- Separate No Surprises Act-eligible claims from the rest of the out-of-network inventory.
- Assign named ownership of the 30-business-day open negotiation period and the four-business-day initiation window.
- Subscribe to the CMS No Surprises Act notices list so Gateway functionality announcements do not arrive secondhand.
- Model the full cost of a dispute, including the certified IDR entity fee, before filing.
- Capture the remittance data, the reported qualifying payment amount with its date, the payer registration number and the eligibility documentation.
- Rebuild batching logic around the three finalized pathways and the 50-line-item limit that applies from Nov. 1, 2026.
- Revisit eligible claims that remain within the applicable filing deadlines and re-run the math under the lower fee. The fee change does not reopen expired disputes.
- Report dispute volume, win rate, average recovery and total cost to leadership on a set cadence.
Turn a rule change into a repeatable process
The fee change is a one-time event. The process it demands is permanent. Dates will shift, the QPA standard will keep moving and the Gateway will add functionality in phases. What holds steady is the requirement underneath: identify eligible claims, protect deadlines, document each dispute as of the day it was filed and measure whether recovery justifies total cost.
Advantum Health connects that work to the rest of the revenue cycle. Eligible out-of-network disputes are one channel of recovery. Accurate coding, disciplined denial management and accounts receivable follow-up close the others, and the payer data that supports a dispute usually explains the underpayment pattern behind it.
Start with your out-of-network inventory. Sort it by eligibility, then by recoverable value. A revenue cycle assessment can show where reimbursement is being lost and which fixes return the most, fastest.