Negative financial shock increases loneliness in older adults, 2006-2016: Reduced effect during the Great Recession (2008-2010).

•In older adults, a large loss of income leads to greater loneliness net of covariates.•Loneliness decreased in those who experienced income shock during the Great Recession.•Changes in health and social experiences did not explain the income shock effect.•Reducing financial difficulties may reduce loneliness in older adults.