Work out dual income savings rate instantly with clear inputs, formula shown and shareable results.
Two incomes make a high savings rate achievable, but they also tempt households into a lifestyle only two incomes can support. Testing the budget against the larger income alone reveals how much resilience the arrangement really has.
Dual income resilience
Savings rate = (combined income - expenses) / combined income; runway = liquid savings / single-income deficit
Figures are estimates for planning only. Prices, returns, inflation and personal circumstances all change. This is not financial or tax advice — speak to a qualified adviser before making decisions.
Because job loss, parental leave and illness all reduce a household to one income at some point.
It is the strongest form of resilience — it turns the second income into savings rather than a dependency.