SUBE: Argentina's Fare Card as a Welfare Instrument
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The social fare still reads 55%. What changed is the fare it is calculated against: frozen at the prices in force on 30 June 2026, so the discount no longer follows later increases and provinces absorb the gap.
what does this mean?
The strongest source is press reporting; no primary evaluation was located. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 10 more in Buenos Aires · 🎫 Smart ticketing guide · 🚲 Mobility projects
SUBE is a national system — created by Decreto 84/2009 and run by the state-owned Nación Servicios S.A. under the national transport secretariat — but it started in the Buenos Aires metropolitan area and is the fare instrument on the city-owned Subte and on metropolitan buses and commuter rail. Its distinctive turn is welfare delivery: a 55% Tarifa Social Federal for pensioners, domestic workers, Malvinas veterans and benefit recipients, applied automatically once the card is registered to a named person. From 1 April 2024 registration also set the ordinary fare, and cards not registered to a person pay more. On 1 July 2026 the national government froze the discount to the reference fares in force on 30 June 2026, so it no longer follows later increases and provinces must absorb the gap.
📊 Impact
Boardings fell after the 2024 fare rises: −11% on the Subte and −6.6% on metropolitan buses in January–August 2024 against the same months of 2023, on SUBE transaction data compiled by the bus operators' association AAETA; commuter rail rose 1%, which the same report attributes to tighter fare-evasion checks.
🎓 Lesson
A fare card that must be registered to a person can carry a means-tested subsidy at national scale — but the same registration becomes a gate, and the subsidy's value is a dial the treasury can turn without touching the discount rate: the headline stayed at 55% while the fare it is calculated against was frozen.
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📎 Cite this project
1001 Smart Cities (2026). “SUBE: Argentina's Fare Card as a Welfare Instrument” — Buenos Aires, Argentina. The Smart City Atlas. https://1001smartcities.org/projects/buenos-aires-sube-card/ (last verified 2026-07-26). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.