Metro stations around the world are equipped with gate infrastructure to collect fares from passengers. At the Stockholm metro, the regional authority replaced tripod turnstiles with electronic gates aiming to better prevent fare evasion and increase revenue following reduced public transport subsidies. In this article, I engage with the politics of fare collection by attending to the gate environment in metro stations as constituting a milieu designed to regulate circulation. Rather than examining the gate milieu through its upfront purpose of fare collection, I critically examine the urban political relations generated and foreclosed in encounters with the material and semiotic properties of the gates. The margin of indeterminacy presented as the gates’ doors slide open upon a ticket validation, invites passengers to assist the gates, in either blocking or letting pass the following passenger to get through. Together with the regional authority’s framing of fare evasion as a cause for a degrading public transport infrastructure, the gate milieu pulls passengers into performing the work of fare collection. As such, the gate arrangement individualises responsibility among passengers for the maintenance of the metro as a collective good. Ultimately, the gate arrangements and the moralized repertoire in which they are inscribed, reveal how fare collection infrastructure risks contributing to escalating urban injustices in times of late industrial urbanity.