Grant stability refers to the predictability and consistency of grant funding from year to year, allowing municipalities to plan confidently rather than face uncertainty about future revenues. Stable grants might be legislated (amounts set by statute), formula-based (calculated automatically from objective factors), indexed (adjusted annually by inflation or growth), or simply announced with multi-year commitments. Unstable grants change unpredictably based on annual budget decisions, economic conditions, or political priorities. Municipalities strongly prefer stable, predictable funding because it enables responsible multi-year planning, avoids disruptive service adjustments when funding changes unexpectedly, and reduces the time and resources spent on annual advocacy for funding renewal. Provincial governments sometimes value flexibility to adjust grants as circumstances change, creating tension with municipal preferences for stability. The Canada Community-Building Fund exemplifies relatively stable funding with statutory commitments and predictable escalation.