Over the past decade, an increasing proportion of households in Canada have become highly indebted relative to their income. These highly indebted households now hold one-fifth of total Canadian household debt.Simulations suggest that this greater degree of household indebtedness could exacerbate the impact of shocks to income and interest rates relative to the pre-crisis period. However, an assessment of the vulnerability of the Canadian financial system should, among other factors, account for the ability of Canadian financial institutions to withstand losses from the household sector.