Will stopping immigration cause labor shortages?

Stopping immigration and labor markets is debated — I'll pull recent research on what happens when the inflow stops.

Short answer: According to most economic research - yes, especially in the short-to-medium term and in specific industries, though the effect on the overall economy is debated.

Stopping new immigration does not create a 1-for-1 job opening for native-born workers, it shrinks the total labor force and removes both workers and consumers.

1. Why economists expect shortages if immigration stops

a) Immigrants are a large and growing share of the workforce

Without that influx, the U.S. working-age population would have been shrinking:

> without the immigration surge of 2022 to 2024, the US working-age population would have been shrinking

> immigration will soon become the primary mechanism keeping the population and the labor force growing. Without it, the U.S. will not just be facing a tighter labor market, but a shrinking one

This is driven by demographics: the U.S. is aging, and immigrants, on average, are more likely to be of prime working age than native-born Americans.

b) Immigrants disproportionately fill chronic shortage occupations

Sectoral evidence shows undocumented immigrants fill chronic shortages in low‑wage and "essential" jobs, especially in agriculture, construction, food services, and caregiving

Other analysis notes:
> Without the influx of ~2 million undocumented immigrants in 2023, labor shortages would have likely caused higher inflation. As the baby boomers retire... labor needs are skyrocketing... in industries like healthcare, construction and agriculture

c) Recent empirical evidence: when immigration fell, vacancies and costs rose

A Federal Reserve Bank of Kansas City study of 2021-2023 found:

> every 1.0 percentage point increase in employment growth coming from immigrant workers in an industry corresponded to a nearly 0.5 percentage point decline in job vacancy rates, on average

And concluded:
> In industries and states that have struggled to fill positions, the arrival of immigrant workers has eased labor shortages

Conversely:
> Reduced immigration contributes to labor shortages, driving inflationary pressures as the supply of immigrant-dependent goods and services shrinks

Economists more broadly warn:
> fewer immigrants could take a hit to the economy, prompting labor shortages and slowing economic growth

Projections cited include:

The Brookings researchers found the losses were not just the arrested workers themselves - each excess arrest was associated with 13 jobs lost overall - because:

> As firms faced sudden labor shortages, they scaled back operations, delayed projects, and cut headcount

Sectors where immigrant workers are heavily represented, such as construction and accommodation and food services, sustained the deepest direct job losses, but industries with very few immigrant workers also contracted sharply.

2. Why stopping immigration does not automatically help native workers

The "lump of labor" argument - that there is a fixed number of jobs and removing immigrants frees them for natives - is rejected by most labor economists.

Research summarized by Equitable Growth finds complementary rather than substitutive effects: a native-born engineer, architect, or plumber finds fewer opportunities if immigrant construction laborers are deported, and fewer construction projects mean fewer jobs for everyone

Historical cases point the same way:

Recent data in 2025 also found: if we've had a big withdrawal of immigrants from the labor force, we don't see any sign of the US-born workers getting more employment because of that.

3. The counter-argument: No true shortage, just wages and adjustment

A minority view, often from restrictionist or market-oriented economists, argues:

> Broadly speaking, economists say they don’t anticipate widespread economic reverberations including labor shortages
> out of a labor force of nearly 170 million people

The Center for Immigration Studies argues:

> Neither theory nor evidence backs the existence of a "labor shortage"... when employers complain of a "shortage", they really mean a shortage of people willing to work for the (low) wage that employers would like to pay

> The percentage of working-age Americans in the labor force remains significantly below the level from the year 2000, and employers should strive to bring those potential workers back.

Other analysts point to automation:

> Reducing the supply of low-wage immigrant labor doesn't bring the jobs back if the jobs are gone, absorbed by software instead of any human worker

In this view, stopping immigration would force employers to raise wages, improve conditions, recruit discouraged native workers, invest in automation, or reduce output - not leave jobs permanently unfilled. Some European examples are cited where tighter rules worsened short-term shortages but were politically offset by technology investments.

4. Bottom line

Whether that counts as a "shortage" depends on definition: economists who define shortage as vacancies at prevailing wages say yes, shortages will rise; economists who define it as jobs that cannot be filled at any wage say the market will adjust through higher wages, higher prices, automation, and less output - but that adjustment itself is costly.