Access to mobile payment platforms across Africa has boomed in recent years, offering financial services to hundreds of millions without conventional bank accounts. Mobile transactions were worth more than 600 billion USD in 2022 alone, presenting policymakers with a substantive new source of domestic revenue. Many African governments have now placed levies on mobile payment platforms to help fund public services, but these have triggered widespread backlash from citizens in ways that risk undermining tax morale and the broader welfare gains of mobile money. In this project I examine how policymakers might resolve this trade-off, using a conjoint policy choice experiment in Malawi to study the types of transaction tax able to garner public support.