Congress has passed legislation expanding the first-time homebuyer tax credit to $15,000, up from the current $10,000 level. The enhanced credit is part of a broader housing affordability package signed into law this week.

The credit is available to individuals who have not owned a home in the previous three years and are purchasing a primary residence priced at or below 110% of the area median home price. Income limits are set at $150,000 for single filers and $225,000 for joint filers.

In a notable change, the new law allows the credit to be applied at closing as a direct reduction in the down payment requirement, rather than requiring homebuyers to wait until they file their tax return. This makes the credit immediately useful for cash-strapped first-time buyers.

Real estate industry groups have praised the expansion, estimating it could help 500,000 additional families achieve homeownership over the next three years. The National Association of Realtors calls it "the most significant homebuyer assistance legislation in a generation."

Critics argue that demand-side subsidies could increase home prices without addressing the fundamental supply shortage. The bill includes companion provisions aimed at increasing housing construction, but their impact will take longer to materialize.