In April 2026, U.S. Citizenship and Immigration Services completed only 27,569 naturalization applications—a staggering 72% drop from the over 97,000 completed in April 2025. The finding comes from a comprehensive data analysis published by the Niskanen Center on June 30, 2026, which tracks legal immigration processing across multiple federal agencies through spring 2026. The report reveals widespread slowdowns in legal immigration processing, delayed data releases that limit public oversight, and disruptions affecting everything from student visas to tourist arrivals.

The scale of the breakdown extends far beyond naturalization. USCIS completed just 40% as many cases overall in April 2026 compared to April 2025, even as the agency received 320,000 fewer new filings. Cases pending for over six months ballooned to 5.4 million in April 2026, up from 3.6 million a year earlier. Processing times stretched dramatically: the average naturalization application now takes 9.5 months versus 6.4 months in April 2025, while applications to replace green cards increased by over 1,000% between the first quarters of fiscal years 2025 and 2026. Denial rates doubled—18% of naturalization applications were rejected in April 2026 compared to April 2025. By December 2025, USCIS had 11.3 million total pending cases, a 17% increase over the previous year, with a net backlog of 6.3 million cases and 197,684 unopened applications sitting in what the agency calls the "frontlog." A year earlier, that frontlog didn't exist.

The disruption cascaded across other agencies handling legal immigration. The report shows U.S. consulates issued 64% fewer fiancé visas, 18% fewer student visas, and 25% fewer H-1B specialty occupation visas in September 2025 compared to September 2024. Immigrant visas dropped 21% over the same period. Wait times at consular posts fluctuated sharply as new vetting procedures—including social media reviews and duplicative interview requirements—took effect. Active international student records fell by 52,750 between June 2025 and June 2026, including 35,682 fewer students enrolled in STEM fields. The active DACA population dropped by 10,620 individuals between the fourth quarter of fiscal 2025 and the first quarter of fiscal 2026, while processing times for DACA-based work permits more than tripled. Overseas visitor arrivals underperformed dramatically: the U.S. welcomed over 430,000 fewer overseas visitors in April 2026 alone, and more than 620,000 fewer in the first five months of 2026 compared to 2025.

The report attributes the processing collapse to both policy changes and bureaucratic slowdowns under the Trump administration, which has focused public attention on illegal immigration while legal pathways have quietly seized up. New vetting requirements at consulates and resource constraints at USCIS compounded existing backlogs. The tourism decline carries economic consequences: using the International Trade Administration's metric that every 40 international visits supports one U.S. job, the analysis calculates the country may have missed out on over 15,600 American jobs in early 2026 due to falling visitor numbers. The report notes that World Cup tourism beginning in June 2026 could rebound that figure, though data won't be available for months.

What happens next depends on whether agencies can reverse the trajectory. Processing times for labor certifications showed modest improvement—PERM applications dropped from 512 days in February to 501 days by late April 2026—but remain at disruptively high levels. The Niskanen Center's report highlights that delayed data releases have obscured how federal agencies are currently operating, limiting the public's ability to track whether the situation improves or worsens. With millions of cases sitting in limbo and denial rates climbing, the legal immigration system faces a backlog crisis that could take years to resolve—even if processing speeds return to previous levels. The families waiting for green cards, the employers seeking specialized workers, and the students planning to study in America are all caught in the same bureaucratic standstill.