How U.S. Asylum Law Works—From Claim to Court

The Legal Foundation

The right to seek asylum is one of the oldest principles in international law. The 1951 United Nations Refugee Convention, drafted in the aftermath of World War II, established the global framework for protecting people fleeing persecution. While the United States did not sign the original convention, it acceded to the 1967 Protocol, which expanded refugee protections beyond Europe. Congress then codified these obligations in the Refugee Act of 1980, creating a uniform legal system for admitting and processing asylum seekers on American soil.

Under U.S. law, asylum is a form of legal protection available to people who meet the international definition of a refugee: someone unable or unwilling to return to their home country because of persecution or a well-founded fear of persecution based on race, religion, nationality, political opinion, or membership in a particular social group.

Two Paths: Affirmative and Defensive Asylum

The U.S. asylum system operates through two primary tracks, depending on how and when a person applies.

Affirmative Asylum

A person already physically present in the United States—whether they entered legally on a visa or crossed the border without authorization—can proactively file an asylum application (Form I-589) with U.S. Citizenship and Immigration Services (USCIS). The application must generally be submitted within one year of arrival, though exceptions exist for extraordinary circumstances such as serious illness or changed country conditions. A USCIS asylum officer conducts a non-adversarial interview, and if the claim is approved, the applicant receives asylum status.

Defensive Asylum

If a USCIS officer does not approve an affirmative application, or if a person is apprehended by immigration authorities and placed in removal proceedings, they can raise asylum as a defense against deportation in immigration court. Here, an immigration judge hears arguments from both the asylum seeker and a government attorney from Immigration and Customs Enforcement (ICE). The process is adversarial and can take years to resolve.

The Credible Fear Screening

Migrants who arrive at the border without valid documentation and express a fear of returning home are typically placed into expedited removal—a fast-track deportation process. However, they have the right to request a credible fear interview, conducted by a USCIS asylum officer, usually within days of arrival.

The credible fear standard is deliberately low: the officer must determine whether there is a "significant possibility" the person could establish eligibility for asylum. According to the American Immigration Council, those who pass this screening are referred to immigration court for a full hearing on the merits of their claim. Those who fail can request review by an immigration judge.

A System Under Strain

The asylum system faces an enormous bottleneck. As of early 2025, more than 3.7 million open removal cases were pending in U.S. immigration courts, according to data compiled by the National Immigration Forum. Nearly 1.5 million affirmative asylum applications were waiting for decisions at USCIS alone. The average wait time for an asylum seeker whose case was ultimately approved exceeded 1,283 days—more than three and a half years.

The backlog stems from a combination of factors: surges in border arrivals, chronic underfunding of immigration courts, a shortage of judges, and frequent policy shifts between administrations that create procedural uncertainty.

What Happens After Approval—or Denial

A person granted asylum can live and work legally in the United States, travel abroad, and apply for family members to join them. After one year, asylees become eligible to apply for permanent residency (a green card), and eventually U.S. citizenship.

If an asylum claim is denied in immigration court, the applicant can appeal to the Board of Immigration Appeals (BIA) and, if necessary, to a federal circuit court. Exhausting all appeals can add years to an already lengthy process.

A Perpetual Legal Battleground

Asylum policy remains one of the most contested areas of American law. Presidents have used executive orders to restrict or expand access, courts have repeatedly intervened, and Congress has not passed comprehensive immigration reform in decades. The Council on Foreign Relations notes that the tension between executive authority and statutory protections ensures that asylum law will remain a flashpoint in U.S. politics for years to come.

What is not in dispute is the law itself: the Immigration and Nationality Act grants people the right to apply for asylum on American soil, a principle rooted in post-war commitments that the United States helped shape.