For roughly fifteen years, American transit riders watched Londoners glide onto buses with a tap of a debit card and wondered when their own city would catch up. In the spring of 2026, several cities did — all at once. Between February and June, LA Metro, Metrolink, SEPTA, Santa Clarita Transit, and Puget Sound's ORCA network either launched or meaningfully expanded open-loop contactless fares. The timing wasn't accidental: with the FIFA World Cup descending on multiple US host cities, agencies wanted visitors to be able to ride the way they pay everywhere else in the world — by tapping the card already in their wallet.
It's a genuinely big moment for US transit. It's also a moment that deserves more than applause. Open-loop is fast, frictionless, and operationally cheaper. It's also, by design, a banking product. And in a country where nearly one in five households is unbanked or underbanked, the riders who most depend on transit are the riders for whom "tap and go" is structurally out of reach.
What Actually Launched in 2026
The headline event was LA Metro's May 28 system-wide rollout — by far the largest single-day open-loop expansion in US history. Riders can now tap any contactless Visa, Mastercard, American Express, or Discover card, or a mobile wallet like Apple Pay, Google Pay, or Samsung Pay, directly on the existing TAP validators across LA Metro's A, B, C, D, E, G, and K lines and all Metro buses. The same readers also accept open-loop on roughly 26 partner agencies in LA County, including Big Blue Bus, Culver CityBus, Foothill Transit, Long Beach Transit, LADOT DASH, Torrance Transit, Antelope Valley Transit, and — as of June 16 — Santa Clarita Transit. Fares stay flat: $1.75 a ride with a $7.00 daily cap. No app, no pre-registration, no separate account. The charge just shows up on your bank statement.
Metrolink followed on June 10 with a different model entirely: a distance-based open-loop pilot on the San Bernardino Line and the Arrow service. Riders tap in at origin and tap out at destination on Littlepay-powered validators, with fares calculated by distance — capped at $10.50 one-way, $15.00 weekday daily, $10.00 weekends. Forget to tap out within 3.5 hours and you're charged the maximum. The Littlepay portal at metrolink.littlepay.com lets riders dispute fares and review trips. The caveats matter: no free transfers to LA Metro, no reduced fares, no SoCal Explorer Rewards points. If you tap a bank card on Metrolink, you pay full adult fare, full stop.
The timing of these launches was no coincidence. The FIFA World Cup opened June 11 across multiple US host cities, and LA's open-loop rollout landed just 14 days earlier — a deliberate sprint to the starting line. Agencies counted on millions of international visitors arriving without US transit cards but with contactless bank cards and mobile wallets already in their pockets. For Metrolink, the World Cup connection was direct: the SoCal Day Pass — $15 on weekdays, $10 on weekends — covered all match-day service to LA Stadium, with free transfers to LA Metro included. Tapping in with a bank card was meant to be the thing visitors didn't have to think about.
SEPTA, which has accepted open-loop since 2018, added something genuinely novel on May 8: multi-rider tap. At a validator, a rider selects "Multiple Riders," chooses up to five, and taps once — the system charges that many single fares ($2.50 each on subway and bus) in a single transaction. It's a small interface change that solves a real friction point for families and groups, and SEPTA's deployment appears to be the first at this scale in the US.
ORCA, which confirmed open-loop live across the Puget Sound region in February, rounds out the wave. Tap-to-pay works on Sound Transit Link Light Rail, Sounder, King County Metro buses, the Seattle Streetcar, the Water Taxi, Kitsap Fast Ferries, and Community Transit fixed routes. Adult fares only — more on that in a minute.
How "Tap and Go" Actually Works
The technology underneath is the same EMV contactless standard you use at the coffee shop. Cards and phones emit an encrypted signal within about four centimeters of the reader, routed through the same Visa, Mastercard, Amex, and Discover networks as any retail purchase. What's different in transit is the back end.
Modern open-loop relies on account-based ticketing, or ABT. Instead of storing value on the card itself, the system tokenizes the card number and links taps to a back-end account. That's what makes fare capping possible: the back end can see you've already paid for six rides this week and stop charging you on the seventh. It's also what enables tap-in/tap-out distance fares like Metrolink's. Major ABT vendors — Cubic, Littlepay, and Masabi — power most of the US deployments. Metrolink runs on Littlepay; LA Metro's expansion layers ABT logic onto the existing Cubic-built TAP validator hardware, which is why the agency could flip 26 operators live on a single day without ripping out readers.
The operational case is straightforward. London TfL data shows contactless cuts bus boarding times by 20–30% versus cash. The MTA's 2019 OMNY pilot reported about 15% faster boarding. APTA pegs a tap at 1–2 seconds versus 4–6 for cash or magstripe. And cash itself is expensive to handle — roughly $0.25 to $0.50 per transaction once you count vault pickups, counting, and reconciliation (a figure consistent with FTA and agency internal cost analyses), versus three to five cents for a contactless tap. Multiply that across hundreds of millions of annual boardings and the savings fund a lot of validator hardware.
The OMNY Template
New York's OMNY is the closest thing the US has to a mature open-loop system, and it's worth studying because everyone else is, more or less, copying it. MTA went system-wide in December 2023, and by early 2026, OMNY handles more than half of all subway fare payments. The automatic $34 weekly cap — equivalent to a 7-day MetroCard — kicks in after 12 paid rides, so frequent riders never overpay. MetroCard retirement is planned for 2027.
Crucially, MTA didn't just shut the door on riders without bank cards. The OMNY Card — a prepaid, reloadable, agency-issued card available at about 500 retail locations and every station vending machine — gives unbanked riders the same fare cap and the same tap experience. By late 2024, the city's Fair Fares program for income-qualified riders was integrated into OMNY too. That's the template: open-loop for everyone who has a card, agency-issued tap card for everyone who doesn't, and discount programs that travel with the rider.
It's also the template that the 2026 wave only partially adopts.
The Cash-Equity Problem
The FDIC's 2023 National Survey of Unbanked and Underbanked Households found that 4.2% of US households — about 5.6 million — have no checking or savings account at all. Another 14% or so are underbanked, meaning they have an account but still rely on money orders, check cashers, or payday lenders (FDIC 2023). Roughly 15.7% have no mainstream credit (CFPB Consumer Credit Panel data). And those rates are several times higher among Black, Hispanic, and American Indian/Alaska Native households — the same demographics that, per National Transit Database ridership data, depend on transit at the highest rates.
The structural tension is hard to wave away. Open-loop is fast and cheap because it offloads card issuance, customer service, and float to the banking system. Riders who aren't in that system simply can't use it. And when agencies pair an open-loop launch with quiet reductions in cash acceptance — fewer ticket vending machines that take bills, shorter customer-service window hours, retired closed-loop cards — the convenience gain for banked riders becomes an access loss for everyone else. This is a familiar pattern in the broader conversation about low-income access to transit and transit equity in funding.
Federal Title VI requirements force agencies receiving federal funds to conduct disparate-impact analyses before eliminating cash or closed-loop options, which is a meaningful guardrail. But the more revealing problem isn't elimination — it's the tiering that open-loop creates by default.
The Discount Gap
The equity problem sharpens when you look at discount programs. ORCA LIFT, Puget Sound's income-qualified program, offers riders up to 60% off — but only on a physical ORCA card. Tap a bank card at a Sound Transit gate and you pay full adult fare. Metrolink's open-loop pilot offers no reduced fares at all; if you have a senior, disabled, or low-income discount, you need a separate card. LA Metro's reduced-fare programs — covering senior, disabled, student, and LIFE low-income riders — still require a registered TAP card; the open-loop tap is adult-fare only. SEPTA's Key Advantage prepaid card remains the cash-loadable option for Philadelphia riders, fully separate from the open-loop tap experience.
What this means in practice is that the riders who would benefit most from a 60% discount — and who are also least likely to have a contactless bank card — face the highest friction to claim it: an application, income verification, a physical card to carry and replace. Meanwhile, the office worker with an Apple Watch glides through the gate paying full fare without thinking about it. The open-loop convenience premium accrues, ironically, to the riders who need it least.
NYC's integration of Fair Fares into OMNY shows this gap is solvable. It's a question of agency investment in back-end enrollment and tokenization, not a technological limit.
What's Still Pending, and What to Watch
The discount gap isn't the only unfinished business. MARTA's "Better Breeze" modernization in Atlanta remains the largest US system without a confirmed open-loop date as of mid-2026. APTA estimates more than 40 major agencies have deployed or are piloting open-loop, but rural and suburban systems lag substantially, and there's no federal mandate — agencies procure independently, mostly using FTA Section 5307 formula grants and IIJA capital funds for validator upgrades. Given the fiscal pressures many agencies are facing, back-end ABT investment competes with service hours, and that's a hard tradeoff.
The international context is humbling. London rolled out open-loop on buses in 2012 and the Tube in 2014; about 40% of TfL trips are now contactless. The US is roughly a decade behind on deployment — Chicago Ventra in 2013, DC's SmarTrip+contactless in 2021, Boston in 2021, BART in 2022, NYC OMNY system-wide in 2023, LA in 2026. The encouraging news is that the deployment curve is accelerating. The cautionary note is that London also removed cash from most of its buses years ago, and the equity debate there has never fully resolved. For more on how fare structures vary globally, see our comparative analysis of fare systems.
The Tap That Counts
Open-loop is a real improvement. Faster boarding speeds up service for everyone on the bus, not just the tapper. Lower cash-handling costs free up operating dollars in a tight fiscal environment. Visitors and occasional riders no longer have to puzzle out a fare vending machine in a language they don't read. And for the World Cup host cities, the timing means millions of international travelers will experience US transit at its most welcoming.
But a fare system is a piece of public infrastructure, and the test of public infrastructure is who it works for at the margins. The 2026 wave will look like a success if, three years from now, agencies have closed the discount gap — if tapping a bank card and tapping an agency-issued prepaid card give you the same cap, the same transfer rules, and the same access to income-qualified fares. It will look like a missed opportunity if open-loop becomes a faster lane for riders who already had it easy, while everyone else queues at a kiosk for a card the system treats as a second-class ticket. The technology is finally here. The harder work — making sure "tap and go" means everyone — is still ahead.