Cities are central to efforts to both reduce greenhouse gas emissions and adapt to the climate change already under way. Cities in Africa and Asia in particular are growing quickly. Existing infrastructure gaps leave them already disadvantaged. The funds available to address the growing climate challenges facing cities are dwarfed by the need. Promises made in Glasgow at CoP26 are vague. However, even those funds are at risk if the fiscal systems by which funds find their way to localities do not function effectively. Delays and losses that are the consequence of misaligned multilevel governance will constitute a “tax” on climate funding. Follow through from Glasgow and concern for the well-being of burgeoning urban populations require that many countries include needed intergovernmental fiscal reforms in their adaptation strategies.