For decades, the 30% rule defined housing affordability, serving as a stable benchmark for underwriting, lending, and household budgeting. Today, that foundation has structurally reset. We have entered the 40% world, where total housing burdens frequently exceed 40% of gross household income, driven by unpredictable, rising costs.
This profound shift — dubbed the "Anchor Effect" — is no longer confined to mortgage holders struggling with rising taxes, insurance and maintenance costs. Renters, too, are facing a compounding affordability burden as landlords pass through the same escalating operating costs. The reality is that affordability is now a shared, volatile pressure, reshaping the financial capacity of nearly all consumers, regardless of whether they own or rent. Changes in financial capacity impacts what a consumer can spend, save, and invest.¹
By 2026, the foundation has undergone a structural reset. We are in a reality where total housing burdens, driven by rising secondary costs, frequently exceed 40% of household income. This shift is creating a widening gap between consumers' credit scores and how they actually behave in the real economy.
