Rising costs have made home affordability a top concern for buyers who want to understand the true price of owning a home. But does the 30% income benchmark still hold in today’s market?

For decades, housing affordability has been measured by the simple rule that households should spend no more than 30% of their income on housing. Today, however, soaring home prices, higher mortgage rates, property taxes, and homeowners’ insurance premiums are pushing total costs well beyond that threshold. Many buyers experience payment shock after moving in.

By examining the full scope of homeownership costs, buyers can avoid being labeled “cost-burdened,” a term used when housing expenses consume too large a share of income.

Nadia Evangelou, principal economist and director of real estate research at the National Association of REALTORS®, says the 30% benchmark still works as a useful guide for assessing financial strain.

“It gives us a consistent way to see when housing puts pressure on a household budget,” she says. But its impact varies widely: “If you earn $250,000 a year and spend 32% on housing, you still likely have flexibility. If you earn $60,000, spending 32% can mean very real trade-offs.”

Christopher Wands, founder of The Wands Team at Douglas Elliman in Miami, advises clients to account for unexpected costs. “Even high-income buyers can underestimate cumulative ownership expenses,” he says, citing landscape, maintenance, and emergency repairs, which may add 10%–20% more to the monthly payment. “Suddenly you’re paying another quarter of a mortgage every month,” Wands notes.

The 30% Threshold: Measuring Affordability

Financial experts emphasize that households spending more than 30% of income on housing are at greater risk of cutting back on essentials, delaying savings, or facing stress when unexpected costs arise—such as tax hikes, insurance spikes, or major repairs. Such pressures can even postpone life goals, including retirement.

The 30% measure also highlights regional differences in affordability, reflecting nuances in local markets. In some areas, high home prices drive the issue, while in others, rising taxes or insurance premiums push costs higher even when home values are moderate. Maps tracking households above the 30% threshold show where affordability pressures are most intense.

Evangelou stresses that affordability is personal: “Local averages provide context. If most people in your metro spend 34% of income on housing, affordability is tight. But it also depends on job stability, savings, debt, and family responsibilities.”

Buyers and renters can explore data in their metro area to see how many households spend more than 30% of their income on housing costs, helping them make informed decisions about true home affordability.