31/07/2026
How affordability assessments actually work
Earning enough doesn't automatically mean approval. Lenders aren't just asking whether you can afford the repayments today. They're asking whether you could still afford them if rates rose significantly from here.
That's the stress test: lenders check affordability at a rate well above the actual product rate, often several points higher. Two people on identical salaries can be assessed very differently once this is applied.
Existing commitments matter too. Credit cards, car finance, student loan repayments, and childcare costs all reduce what's counted as available income, sometimes using the credit limit on a card rather than the balance owed.
Overtime, bonuses, and commission are frequently discounted or averaged rather than counted in full, even when they're a reliable part of someone's income in practice.
None of this is about whether someone earns enough in the everyday sense. It's about how a lender's model treats that income once stress-tested and offset against commitments. Knowing what gets counted and what gets discounted changes how a case is understood before it's submitted.