The Affordable Housing Paradox: Why 60% AMI Units Sit Empty While the Poorest Cannot Find Homes

Municipal governments and federal policymakers frequently assert that financing new subsidized apartment buildings is the most effective mechanism to solve the American housing crisis. The actual data contradicts that claim: in major cities across the United States, thousands of newly constructed, income-restricted units are currently sitting empty while the poorest residents remain in homeless shelters.

The system is producing apartments that cost too much for those who need them most, and require too much paperwork for those who can afford them. In Austin, Texas, nearly 16% of the city's affordable housing stock—over 4,500 units—is vacant. In Denver, Colorado, apartments financed by the federal tax credit program for those earning 60% of the area median income face a 13% vacancy rate, which climbs to 21% for units aimed at the 80% threshold.[2][5]

The paradox comes down to the math of property development versus the reality of deep poverty. The United States has 11 million extremely low-income renter households, but only 4 million affordable units available for them, according to the National Low Income Housing Coalition's 2026 annual report.

These households earn below the federal poverty guideline of roughly $16,000 for a single person, or 30% of their area's median income. Yet, figures from the National Council of State Housing Agencies show that only 12% of the affordable units financed in 2024 through the Low-Income Housing Tax Credit (LIHTC)—the primary federal mechanism for funding affordable development—were set aside for this poorest demographic.[1][4][5]

The vast majority of subsidized housing targets individuals earning 50% to 80% of the area median income (AMI). In Portland, Oregon, the Portland Housing Bureau reports over 1,700 vacant affordable units, creating a 7.5% vacancy rate. Most of these empty apartments are restricted to renters making 60% of the AMI, which equates to about $54,000 for a single-person household.

At that income tier, the rent is capped at $1,444 per month. However, CoStar data indicates that the average market-rate rent for a one-bedroom apartment in Portland is $1,581, placing the subsidized units in direct competition with the open market.[2]

When the price gap between a subsidized apartment and a market-rate unit narrows to less than $150, renters who qualify for the affordable units often choose the open market to avoid the bureaucratic friction. Rebekah Fischer, chief portfolio officer at LDG Development, notes that her firm is competing directly with thousands of new market-rate apartments in Austin, where LDG faces a 12% vacancy rate in its 60% AMI units.

"I have to have every bank statement, every pay check, every bill, every Venmo transaction that you had with your friends," Fischer said of the affordable housing application process. Market-rate approvals, by contrast, take minutes.[2]

For the poorest Americans, the bureaucratic hurdles are irrelevant because the rents are mathematically out of reach. Mathew Davis, a 49-year-old living in an Austin homeless shelter, earns only a few hundred dollars a month donating blood plasma. Even a $450-a-month tiny home with communal bathrooms exceeds his budget.

"I don't make enough money really to afford anything," Davis said. "I just keep trying to swim uphill." Austin city documents reveal that while the municipality built all 15,000 units planned for the 60% to 80% AMI bracket between 2018 and 2024, it completed just 543 of the 20,000 units targeted for extremely low-income residents.[1][5]

Developers state that constructing housing for the 30% AMI demographic is financially impossible without massive, ongoing public subsidies. Carmen Romero, president and CEO of True Ground Housing Partners in the Washington, D.C. area, provided a stark breakdown of the operating economics. A unit priced for a renter earning 60% of the area median income generates $1,715 per month in rent.

After covering $1,575 in mortgage and operating expenses, the property retains just $140. "The math does not lie," Romero said. "Our expenses don't make it really possible to create a 30% AMI unit, unless there was this extraordinary amount of subsidy that just doesn't exist."[5]

The primary mechanism designed to bridge this gap is the federal housing voucher program, which allows tenants to pay 30% of their income while the government covers the remainder of the rent. Experts note that vouchers pair effectively with LIHTC properties, as tax-credit developments are legally required to accept them, unlike many market-rate landlords. However, the voucher system suffers from a severe funding shortfall. Current estimates indicate that only one in four eligible families ever receives a voucher, leaving the vast majority stranded on waitlists that can stretch for years.[5]

The structural inefficiencies of the housing ecosystem have prompted criticism from multiple fronts. Economists argue the system enriches intermediaries rather than housing the poor; Chris Edwards of the Cato Institute testified that the complexity of the tax credit system has "spawned an industry of law and accounting firms just to administer it."

Meanwhile, housing advocates point to similar warehousing dynamics in major metropolises. In New York City, critics highlight tens of thousands of rent-stabilized apartments sitting vacant amid a historic shelter crisis, fueling demands for greater accountability from property owners who keep units off the market.[3][5]

As vacancies in the 60% to 80% AMI tiers continue to rise, municipal housing departments are recalibrating their funding priorities. The Austin housing department recently acknowledged the production failure for its poorest residents and announced it is now giving funding preference to development proposals that include 30% AMI units. The success of that policy shift depends entirely on whether the city can secure the extraordinary subsidies required to offset the $1,575 baseline operating costs developers face per unit.[5]