The price-to-income ratio for housing is the median home price in an area divided by the median annual household income there, and it tells you roughly how many years of pre-tax earnings it would take to buy a typical home. As of early 2026, the national ratio sits near 4.9: the median existing-home sale price was $408,800 in March 2026, and the most recent Census figure for median household income was $83,730.1National Association of REALTORS®. Existing-Home Sales2United States Census Bureau. Income in the United States: 2024 That puts the country well above the 3.0 figure widely treated as the affordability ceiling, and no major U.S. metro currently falls below it.
How to Calculate It
The math is simple. Take the median sale price of homes in the area you care about and divide it by the median annual household income for the same area. Using the national 2026 figures, $408,800 divided by $83,730 gives you about 4.9. In plain terms, a household earning the national median would need nearly five full years of gross income, spent on nothing else, to cover the purchase price outright.
Both inputs use medians rather than averages, and that choice matters. A handful of ultra-expensive sales or very high earners can drag an average far from what a typical buyer or household actually experiences. The median marks the exact midpoint of the distribution, so it reflects the typical case. The U.S. Census Bureau’s American Community Survey publishes income figures annually,3United States Census Bureau. American Community Survey (ACS) and the National Association of Realtors publishes monthly median sale prices for existing homes.1National Association of REALTORS®. Existing-Home Sales
You can run the same calculation for any metro area, county, or ZIP code as long as you have local median figures for both sides. Comparing a target market’s ratio against the national figure, and against its own history, gives you a much clearer read than looking at raw home prices alone.
What the Number Means
The Demographia International Housing Affordability report, the most widely cited source for these benchmarks, sorts markets into four tiers using what it calls the median multiple:4Demographia. Demographia International Housing Affordability 2025 Edition
- Affordable, at 3.0 or under. A household can buy at roughly three years’ income or less, and mortgage payments generally stay within the 30 percent of income guideline federal policy treats as the affordability ceiling.
- Moderately unaffordable, 3.1 to 4.0. Buyers start stretching. Larger down payments or dual incomes become more important to keep monthly payments manageable.
- Seriously unaffordable, 4.1 to 5.0. Many middle-income households get priced out of ownership entirely, or they take on debt that leaves little margin for other expenses.
- Severely unaffordable, 5.1 and above. Ownership depends on above-median income, substantial family wealth, or accepting financial strain that federal standards classify as burdensome.
These tiers were built for international comparisons across hundreds of metro areas. They work well as a quick diagnostic, but they measure only the purchase price against income. They say nothing about interest rates, property taxes, insurance, or maintenance, all of which shape whether a given ratio actually feels affordable month to month.
Why 3.0 Is the Dividing Line
The affordability threshold ties back to the long-standing federal rule that housing should cost no more than 30 percent of household income. The Department of Housing and Urban Development classifies any household spending more than 30 percent of income on housing costs (including utilities) as cost burdened, and more than 50 percent as severely cost burdened.5HUD USER. CHAS: Background A ratio of 3.0, combined with a reasonable interest rate and a standard down payment, roughly translates into monthly payments at or below that 30 percent threshold. As the ratio climbs past 3.0, more households cross into cost-burdened territory.
The national reading near 4.9 means a household earning the 2024 median and buying at the March 2026 median price faces a purchase nearly five times its annual income. Layer on a mortgage rate near 7 percent, property taxes, and insurance, and the actual monthly cost pushes many buyers well past 30 percent of income. That gap between what the ratio captures and what ownership actually costs is why the number works as a starting point rather than a final verdict.
Why Ratios Vary by Region
National figures mask enormous local variation. Land scarcity, zoning restrictions, and job concentration push ratios in major coastal metros far above the national average. A tech hub or financial center can carry a ratio of 8.0 or higher while a mid-sized city in the interior sits at 3.5. Both numbers may reflect locally normal conditions.
Buyers in high-ratio cities often accept steeper numbers because those markets tend to offer higher salaries, career density, and amenities that support long-term property values. A ratio of 7.0 in a city where six-figure incomes are common plays out differently than a 7.0 in a market where median incomes trail the national average. The ratio alone doesn’t tell you which situation you’re looking at.
A sharper test is to compare a market’s current ratio against its own historical average. If a city has floated between 5.0 and 6.0 for two decades and suddenly jumps to 8.0, that signals a local affordability shift regardless of what the national number is doing. If the same city has always sat around 7.5, a reading of 8.0 is less alarming. Context, not just the number, tells you whether a market is overheating.
What Pushes the Ratio Up or Down
The ratio moves when home prices and incomes change at different speeds. Since 2020, prices have outpaced wages in most markets, which is the main reason the national ratio has climbed. Several forces drive that divergence:
- Housing supply. Low inventory is the most persistent upward pressure on prices. NAR reported just 4.1 months of inventory nationally as of March 2026, still below the roughly six months that signal a balanced market.1National Association of REALTORS®. Existing-Home Sales
- Interest rates. Lower rates let buyers afford higher purchase prices at the same monthly payment, which tends to push prices up. Higher rates work the other way in theory, but in practice they have also discouraged existing owners from selling, which keeps inventory tight and partially offsets the cooling effect.
- Wage growth. When local industries expand or labor markets tighten, incomes rise and the ratio stabilizes or drops even if prices hold steady. A recession or job losses can push the ratio up as incomes fall faster than prices adjust.
- Zoning and construction costs. Restrictive land-use rules and rising material and labor costs limit new construction, keeping supply tight and prices elevated over long periods.
These forces interact. A market with strong wage growth and loose zoning can absorb higher construction costs without much ratio movement. One with stagnant wages and restrictive zoning gets squeezed from both sides.
Price-to-Income vs. Debt-to-Income
These two ratios sound similar and get confused often. The price-to-income ratio is a market indicator. It tells you whether home prices in an area are proportionate to local earnings. No lender looks at it when deciding whether to approve your loan.
What lenders actually use is the debt-to-income ratio, a borrower-specific calculation that compares your total monthly debt payments to your gross monthly income. It includes your projected mortgage payment, property taxes, insurance, and existing debts like car loans, student loans, and credit card minimums. Lenders look at two versions: a front-end ratio covering housing costs alone, and a back-end ratio covering all debts. Conventional lenders generally want the front-end ratio at or below 28 percent and the back-end at or below 36 percent, though borrowers with strong compensating factors may qualify with higher numbers.
For federally backed loans, the Consumer Financial Protection Bureau’s qualified mortgage rules have historically capped the back-end debt-to-income ratio at 43 percent for general qualified mortgages.6Consumer Financial Protection Bureau. General QM Loan Definition That’s the number your lender weighs, not whether your city’s price-to-income ratio sits at 4.0 or 7.0.
The two connect in one practical way. In a market with a high price-to-income ratio, a larger share of buyers will bump up against debt-to-income limits. If you’re shopping somewhere with a ratio above 5.0, expect that qualifying for a mortgage will require above-median income, a substantial down payment, or both.
What the Ratio Does Not Tell You
The price-to-income ratio is a blunt instrument, and treating it as a complete affordability picture is a mistake buyers make often. Several important factors fall outside its scope:
- Interest rates. A ratio of 4.0 at a 3 percent mortgage rate produces a very different monthly payment than the same ratio at 7 percent. The ratio treats the purchase price as a lump sum and ignores financing costs entirely.
- Carrying costs. Property taxes, homeowner’s insurance, HOA fees, and maintenance typically add 1 to 3 percent of a home’s value annually. These ongoing costs don’t appear in the ratio but shape whether ownership is sustainable.
- Down payment and closing costs. The ratio compares the full price to your income. In practice, a buyer putting 20 percent down has a different financial exposure than one putting 3 percent down, and closing costs vary widely by location.
- Household composition. Median household income blends single earners, dual earners, and retirees. A two-income household in a 5.0 market may be comfortable while a single earner at the same ratio is stretched thin.
- Local tax and cost structures. Two markets with identical ratios can feel very different if one has high property taxes and expensive insurance while the other has low taxes and cheap utilities.
Use the ratio as a first-pass filter. It flags whether a market’s prices are roughly in line with its incomes and whether the gap has widened unusually fast. The actual affordability of any specific home depends on your income, your debts, your down payment, and the full monthly cost of ownership, so run the granular math on individual properties before committing.