Many scholars and policymakers see rising debt burdens in the industrialised world as the product of ageing populations. Prominent theoretical models of government debt accumulation – used to justify fiscal rules and austerity measures – explicitly assume that support for debt reduction decreases with age. While such models have been influential, the fundamental relationship between age and preferences for debt has not been tested empirically. We test this argument but further theorise that the relationship between age and debt preferences is non‐linear. While the elderly have a clear preference for ignoring debt burdens, we add that the young should also prefer to delay reckoning with high national debts given their low income and expectations of higher future earnings. Using survey data (N = 112,689), we find that age does have a small to modest non‐linear impact on concern for national deficits and debt burdens. Middle‐aged respondents are most concerned about debt reduction, while the young and old view reducing government debt as less of a policy priority. Notably, the relationship is strongest in countries with more generous old‐age benefits.