Does moving to a lower cost-of-living city justify a reduced income for support purposes?

Not automatically. A parent's own cost of living generally is not the relevant question in a child support analysis, since child support is calculated based on the payor's income and standard guideline tables, not on how far their income actually stretches in the city where they live; a move to a cheaper city does not, on its own, justify earning or reporting less income for support purposes. What matters instead is whether the move itself caused a genuine, reasonable reduction in earning capacity, for example if comparable work in the new location simply is not available at similar pay.

Courts will look at why the move happened, whether it was primarily about lifestyle or cost savings rather than a necessary career or family reason, whether comparable employment was realistically available in the new location, and whether the parent made reasonable efforts to maintain their income level despite relocating. A parent who voluntarily moves to a lower cost-of-living area and takes a lower-paying job with no external necessity may still have income imputed at their prior earning level if a court finds the reduced income was a choice rather than a genuine limitation. Because this analysis is fact-specific, documenting the reasons for the move and the local job market conditions matters.