The collapse started with mortgages nobody could afford to repay

In 2008, the U.S. financial system nearly collapsed because banks had lent hundreds of billions of dollars to people who could not pay the money back. These loans were called subprime mortgages — mortgages given to borrowers with poor credit or low income. Banks knew the risk was high, but they sold these mortgages to other banks and investment firms almost immediately, passing the risk along instead of keeping it themselves.

For years, housing prices kept rising, so even when borrowers fell behind on payments, the houses were worth more than the loan. Banks and investors assumed prices would never fall. They were wrong. When housing prices started dropping in 2006 and 2007, borrowers began walking away from mortgages that were now worth more than their homes. The loans that banks thought were safe turned out to be worthless.

Key Takeaways

  • Banks lent money for mortgages to people who could not afford to repay them, then sold those mortgages to other financial institutions instead of keeping the risk themselves.
  • When housing prices fell and borrowers stopped paying, the mortgage-backed securities that banks and investment firms owned became nearly worthless overnight.
  • Lehman Brothers, one of the largest investment banks in the country, collapsed in September 2008, triggering a panic across the entire financial system.
  • The government stepped in with emergency loans and takeovers to prevent other major banks from failing and to restore confidence in the financial system.
  • Millions of people lost their homes to foreclosure, lost their jobs as the economy contracted, and lost retirement savings as stock prices fell.

How bad mortgages became a system-wide crisis

Banks did not keep the mortgages they made. Instead, they bundled them together and sold them as mortgage-backed securities — investments that paid returns based on the mortgage payments borrowers made. Investment banks, pension funds, insurance companies, and foreign banks all bought these securities, believing they were safe because they were backed by real estate.

The problem was that nobody really knew what was inside these bundles. A mortgage-backed security might contain thousands of individual mortgages, many of them subprime. Rating agencies gave these securities high safety ratings anyway, partly because they were paid by the banks selling them. By 2007, mortgage-backed securities worth trillions of dollars were sitting on the balance sheets of financial institutions around the world.

When housing prices stopped rising and borrowers started defaulting, the value of these securities collapsed. Banks that owned them suddenly did not know how much their own assets were worth. If you do not know what your assets are worth, you cannot borrow money, because lenders do not know if you can repay them. The entire financial system froze.

Lehman Brothers failed and panic spread everywhere

Lehman Brothers was one of the four largest investment banks in the United States. In September 2008, it announced it could not pay its debts and filed for bankruptcy. This was the largest bankruptcy in U.S. history. The failure sent a shock through the financial world because it showed that even the biggest banks could fail.

Other banks immediately stopped lending to each other. Nobody knew which institutions were holding worthless securities and which were not. Credit markets that had been running smoothly for decades simply stopped working. Businesses could not borrow money to pay their workers. Retirement accounts lost half their value in weeks. People rushed to withdraw cash from banks, afraid the banks would fail too.

The government had to step in fast. The Federal Reserve lent money directly to banks to keep them from running out of cash. Congress passed a $700 billion emergency fund called the Troubled Asset Relief Program (TARP), which allowed the government to buy the bad mortgages and mortgage-backed securities from banks so the banks would have cash to keep operating.

The government took over failing banks and insurance companies

The Federal Reserve and the Treasury Department did things they had never done before. They lent money to investment banks, which they normally did not do. They took over Fannie Mae and Freddie Mac, the two government-sponsored companies that buy and may provide most mortgages in the country. They lent $182 billion to insurance giant AIG to keep it from collapsing, because AIG had sold insurance on mortgage-backed securities and owed money to banks all over the world.

The government also arranged emergency mergers. JPMorgan Chase bought the failing investment bank Bear Stearns with government help. Bank of America bought Merrill Lynch. Wells Fargo bought Wachovia. These were not normal business deals — they were government-orchestrated rescues to prevent the financial system from completely breaking down.

Millions of people lost their homes and jobs

While the government was rescuing banks, ordinary people were losing everything. Foreclosures — when banks take back homes from borrowers who cannot pay — reached record levels. In 2010, more than 1 million foreclosures were filed. Families lost homes they had lived in for decades. Neighborhoods filled with empty houses.

The financial crisis triggered a recession that lasted from December 2007 to June 2009. Unemployment rose from 5 percent to nearly 10 percent. Millions of people lost their jobs. Retirement accounts that people had spent decades building lost half their value. The stock market fell 57 percent from its peak in 2007 to its low in 2009.

The pain was not evenly distributed. People who had subprime mortgages — disproportionately Black and Latino borrowers — lost their homes at much higher rates than others. People without college degrees lost jobs faster and took longer to find new ones. Older workers who lost jobs in 2008 and 2009 often never returned to the same income level.

The crisis exposed how little oversight existed

After the crisis, investigations showed that banks had taken enormous risks without proper oversight. Mortgage brokers had no incentive to make sure borrowers could actually repay — they made money on every loan they wrote, whether it defaulted or not. Banks had no skin in the game because they sold the mortgages immediately. Rating agencies had conflicts of interest because the banks paying them to rate the securities were also their clients.

Congress passed the Dodd-Frank Act in 2010 to add new rules. Banks had to keep some of the mortgages they made, so they had reason to care whether borrowers could repay. The government created the Consumer Financial Protection Bureau to oversee lending practices. Regulators were supposed to watch for excessive risk-taking.

But the underlying problem remained: financial institutions had become so large and so interconnected that when one failed, it threatened to bring down the whole system. The government had to choose between letting major banks fail and taking on enormous debt to rescue them. It chose rescue, which meant taxpayers bore the cost while bank executives kept their jobs.

The recovery took years and was uneven

The stock market recovered by 2013, but unemployment stayed high until 2015. People who had lost homes did not get them back. Neighborhoods that had been devastated by foreclosures took a decade or more to recover, if they recovered at all. Wealth that had been lost — in homes, retirement accounts, and jobs — was never fully restored for most people.

The crisis changed how people thought about banks and the government. Trust in financial institutions fell sharply and stayed low. Many people who lost homes during the crisis never bought another one. The experience shaped an entire generation's attitude toward debt and saving.

Frequently Asked Questions

Did the banks that caused the crisis go to jail?

No major bank executives were prosecuted for their role in the crisis. The government focused on keeping banks operating rather than on criminal charges. Some people who worked in mortgage fraud were prosecuted, but the executives who made the decisions to take excessive risk were not charged with crimes.

Did taxpayers lose money on the bank rescues?

The government spent about $700 billion on TARP, but most of that money was repaid when banks recovered and the government sold its stakes in them. The total loss to taxpayers was much smaller than the initial spending, though estimates vary. The real cost was in lost jobs, lost homes, and lost retirement savings for ordinary people.

Could another banking crisis happen today?

The Dodd-Frank rules reduced some risks, but financial institutions are still large and interconnected. Banks are required to hold more capital and to stress-test their ability to survive a crisis. However, new types of financial risk have emerged in areas like cryptocurrency and private equity that have less oversight than traditional banking.

Why did housing prices fall so fast?

Prices had risen far beyond what people could actually afford to pay. When interest rates rose and borrowers could no longer refinance their mortgages, demand for houses fell. Once prices started dropping, people who could walk away from mortgages did so, which increased the supply of houses for sale and pushed prices down further.

What happened to the people who lost their homes?

Some moved into rental housing. Others moved in with family. Many faced years of damaged credit that made it hard to borrow money for anything. Some never recovered financially. Homelessness increased in many cities. The long-term effects on children who experienced foreclosure included lower educational outcomes and health problems.