Illinois in the banking crossfire

Illinois’ new Interchange Fee Prohibition Act (IFPA) carves out sales taxes and gratuities from the base on which card “swipe fees” are charged, with a federal court largely upholding that core feature and setting it to take effect July 1, 2026 absent a successful appeal. If bank and OCC challenges ultimately fail, the Illinois model is already positioned to spread to other states, turning a state experiment into de facto national regulation of interchange economics over the medium to long term.

Proper credit to the article

• The core current-news framing, including the conflict between banks, card networks, the OCC and Illinois over a “swipe fee” law covering taxes and tips, comes from American Banker’s coverage of the case and the ongoing appeal. The deep dive below builds on that reporting and on legal and policy analysis from ABA, PwC, and law firm commentaries on the Illinois Interchange Fee Prohibition Act (IFPA).

• The characterization of this as a first‑in‑the‑nation state law targeting swipe fees on tax and gratuity portions, and of the current litigation posture (district court partial upholding, Seventh Circuit appeal with OCC support), is grounded in that article’s narrative frame and contemporaneous legal summaries.

What the Illinois law actually does (short term)

• IFPA prohibits issuers, networks, and processors from charging or collecting interchange on the portion of a card transaction that represents state or local sales taxes and gratuities. So if a bill is $\$40$ plus $\$4$ tax and a $\$10$ tip, interchange is charged only on $\$40$, not $\$54$.

• The law is explicitly extraterritorial at the transaction level: it applies whenever the transaction occurs in Illinois, regardless of where the issuer is located, meaning out‑of‑state and online card issuers are captured when a cardholder transacts in Illinois.

• A federal court largely upheld this interchange carve‑out, rejecting key federal preemption arguments on the grounds that networks, not banks, directly set interchange, while striking down separate IFPA data‑usage restrictions. The effective date for the fee restriction was delayed by the legislature and is now scheduled for July 1, 2026.

Short‑term economic and operational impacts in Illinois

1. Merchant economics and pricing behavior

• Immediate winners are high‑tip and high‑tax categories (full‑service restaurants, hospitality, some service businesses) where tips are 15–25% of tickets and taxes can add several more percentage points. For a sit‑down restaurant, one industry analysis estimates a roughly 14% reduction in interchange on a typical dinner tab once tips are carved out.

• Some combination of the following is likely in the near term: merchants keeping the gain to offset margin pressure; selectively lowering or softening “credit card surcharge” or “cash discount” programs; or using savings in negotiations with processors/ISOs while keeping posted prices unchanged. For most Illinois residents, any direct reduction at the point of sale is likely to be subtle and heterogeneous by merchant type rather than across‑the‑board.

2. Card issuer and network responses

• Networks and issuers almost certainly will look to re‑optimize their fee schedules: raising rates or fixed components on the non‑tax, non‑tip base, adjusting other ancillary fees, or tightening rewards economics. Economic modeling of IFPA predicts that at least part of the lost tax/tip interchange will be recouped elsewhere in the system, potentially diluting merchant savings and shifting costs back to cardholders.

• For issuers with material Illinois volume (regional/community banks, credit unions, and major national issuers with significant card portfolios), the short‑term impact is an adverse revenue shock concentrated in certain MCCs (restaurants, hospitality, some professional services) that has to be managed against already tight card margins under Durbin‑like pressure.

3. Operational complexity and compliance

• The statute effectively forces merchants and their acquirers to identify and transmit tax and tip components in the authorization/clearing messages if they want to avoid interchange being applied to those portions. IF they fail to segregate the amounts correctly, they risk either forgoing the carve‑out or incurring statutory penalties of up to $\$1,000$ per transaction for violations.

• That, in turn, requires software changes to POS, gateways, and back‑office systems, along with network rule changes to handle the new fields or flags, all of which must be in place by the effective date. Smaller merchants and local government offices with older POS set‑ups may struggle most with the transition.

How it affects Illinois residents’ ability to pay mandated fees

1. State and local taxes, citations, and license fees

• Because the law bans interchange on the tax component, it directly touches many payments where state or local taxes are embedded in the total—vehicle registration, some licensing fees, and many retail transactions that include sales tax. For residents, the most visible short‑term effect is less likely to be a line‑item “discount” and more likely to be changes in what payment types are accepted and whether surcharges are imposed.

• Some state and local entities (DMV counters, municipal utilities, courts, park districts) that previously either surcharged for cards or nudged residents toward ACH or cash may find their card acceptance costs somewhat lower on the tax portion, but they still pay interchange on any non‑tax part and may face new compliance burdens. A few may respond by:

  • Expanding card acceptance (especially for online portals) because the marginal cost on tax portions falls.

  • Tightening permitted card types or routing (e.g., preferring PIN debit or ACH) to avoid other costs.

2. Court fines, tickets, and other mandated payments

• For mandated payments that are not purely taxes—such as traffic tickets, court fines, and some regulatory charges—only the tax component (if any) is fee‑protected, while the base fine remains subject to interchange. Agencies still face card costs on those base amounts, so many may keep or even rationalize “convenience fees” charged to residents who pay by card.

• The law may push agencies and their processors to invest in better itemization, which could allow more transparent billing: clearer separation of “fine,” “taxes,” and “processing/convenience fee” on resident receipts. That transparency could become a political issue if residents see that card‑related convenience fees persist even after tax‑portion interchange is banned.

3. Tipped workers and local service economy

• For residents who are tipped workers (servers, bartenders, delivery staff), merchants’ savings from not paying interchange on tips could in theory support better tip pass‑through or compensation stability, but the law does not require any of that benefit to flow to workers. Outcomes will depend heavily on individual employer practices.

• Card acceptance for small, tip‑dependent local businesses (salons, bars, diners) could become slightly cheaper at the margin, encouraging continued card acceptance rather than a shift toward cash‑only policies or higher explicit card surcharges. For residents, that helps preserve the flexibility to pay for everyday local services with cards, although offsetting issuer responses could re‑raise costs elsewhere in the ecosystem.

Longer‑term national implications if challenges fail

1. Template for other state laws

• Illinois is the first state to implement a law that structurally excludes state/local tax and gratuity portions from interchange, and a federal court has now upheld the core interchange provisions against key preemption arguments. Trade groups for merchants already describe Illinois as a “model” and “roadmap” for similar legislation in other states.

• Policy trackers report that several other states are already considering or drafting bills modeled on IFPA that would exempt taxes, tips, or both from swipe fees. If the Seventh Circuit affirms and the Supreme Court declines review—or upholds the framework—there is a clear legal path for a patchwork of state‑level swipe‑fee carve‑outs to emerge.

2. Fragmentation versus de facto national standard

• If only a handful of states adopt IFPA‑style laws, processors and networks will face complex, state‑by‑state rule sets, potentially raising compliance costs and encouraging some narrower acceptance policies in those states. Large national issuers and networks may respond by “averaging” economics across geographies—effectively spreading revenue impacts nationwide through generalized pricing changes.

• If many large states follow Illinois, networks may converge on a de facto national standard in which interchange on tax/tip portions is pared back across the board to avoid running dual rule books. That would be a structural reallocation of value in the four‑party card model, with merchants (especially in high‑tip sectors) gaining at the expense of issuers and potentially cardholders via higher annual fees, reduced rewards, or tighter underwriting.

3. Regulatory and litigation dynamics

• The district court decision held that IFPA does not directly regulate national banks and falls outside National Bank Act preemption because payment networks, not banks, set interchange—a view strongly contested by bank plaintiffs and now on appeal. The OCC has signaled concern that IFPA interferes with national banks’ ability to charge fees and operate card programs, and has weighed in on the appeal.

• If banks and the OCC ultimately lose, a precedent is set that states can regulate at least some aspects of card economics by targeting networks and non‑bank participants rather than banks themselves. That would embolden state‑level efforts not only on taxes and tips, but potentially on other fee components, routing constraints, or data‑usage rules (subject to narrower grounds on which the Illinois court struck down IFPA’s original data provisions).

Strategic implications for Illinois residents and local institutions

• For Illinois residents as cardholders, the most concrete medium‑term effects are likely to be indirect: changes in card rewards, fees, and acceptance practices as issuers and merchants adjust to the new economics, rather than explicit “discounts” tied to taxes and tips. Residents paying state‑mandated fees may see modest improvements in digital card acceptance and billing transparency, but they may still confront convenience fees and channel steering as agencies recut their economics.

• For local banks and credit unions, the law introduces a new revenue and compliance variable that interacts with Durbin caps, competitive pressures in card rewards, and potential expansion of IFPA‑style rules into neighboring states. Decisions they make in response—whether to pull back on certain rewards, lean harder into ACH and real‑time payments for bill pay, or differentiate on small‑business acquiring support—will shape how local residents actually experience paying for taxes, tips, and mandated fees over the coming years.