Will stopping immigration cause labor shortages?

Short answer: In many cases, yes — especially in specific sectors and specific countries with aging populations. But it's not a universal law, and the effects depend heavily on context.

The case for "yes, it causes shortages"

Demographics matter. In countries like the U.S., Canada, Japan, and much of Europe, native birth rates have fallen while populations age, shrinking the pool of working-age people relative to retirees. Two forces are currently shaping the U.S. labor market: an aging population, and as larger cohorts of workers reach retirement, growth in the labor force slows. Historically, immigration has offset older workers leaving the labor force — foreign-born workers have consistently accounted for half of labor force growth each year, an outsized contribution given their much smaller share of the labor force.

Real-world evidence from recent U.S. policy. The current U.S. immigration crackdown offers a live case study. 92% of construction firms report having a hard time finding workers to hire, and 45% of firms say labor shortages are causing project delays, as immigration enforcement affects nearly a third of firms. In agriculture, foreign-born workers comprise approximately 70% of the farm workforce nationwide, and many farms report difficulty finding enough workers during critical harvest periods, a challenge that intensified due to increased interior immigration enforcement. Because produce is time-sensitive, shortages often result in a significant share of edible produce going unharvested, increasing food waste, lowering yields, and raising costs for producers.

A Harvard Law School labor economist noted the tension directly: there's tension between the political imperative of deportations and the interests of contractors who want certainty in planning their business. And a July 2025 analysis found that if the Trump administration meets its goal of deporting 4 million people by the end of 2028, 1.4 million immigrants who work in the construction industry would be lost.

Canada's experience shows the flip side: expanding immigration was explicitly used to address shortages. Given Canada's aging population, growth in both temporary and permanent immigration has been essential to supporting economic growth and responding to labour market shortages, and now contributes to nearly 100% of Canada's labour force growth.

The case for "it's complicated / not inevitable"

Immigration is only a partial fix even where it helps. Some researchers argue it's oversold as a demographic solution: immigration has become the go-to solution for demographic decline in wealthy countries—but it is at best a half-answer, alongside investments in productivity, extensions to the retirement age, and family-friendly policies. While immigration can help alleviate labor shortages, unless carefully managed it can create new pressures—housing shortages, strained public services, downward wage pressure in certain sectors.

Better integration of existing immigrants can close gaps without new arrivals. The role of integration, rather than immigration, policies in meeting labor shortages is often overlooked — in the Netherlands, three-quarters of current vacancies could be filled if migrants participated in the labor market at the same rate as the native-born.

Skeptics of the "immigration fixes aging" narrative point out that the math doesn't fully work: absent truly gargantuan and ever-increasing rates of immigration, it isn't actually possible for immigrants to undo or dramatically slow the overall aging of society, since immigration "can only prevent population ageing at unprecedented, unsustainable and increasing levels of inflow." In other words, immigration delays rather than permanently solves the underlying demographic shortage problem — the immigrants themselves eventually age too.

Other adjustment mechanisms exist. Wages can rise to draw in more native workers (though often slowly), automation/AI can substitute for labor in some roles, retirement ages can be raised, and labor-force participation among under-tapped groups (women, older workers, disabled workers) can increase. These are slower and sometimes costlier than relying on immigration, but they are real alternatives — and generative AI could mean both huge financial gains and fewer workforce needs in some shortage sectors, though whether it will ultimately create or destroy jobs remains deeply debated.

Bottom line

Stopping or sharply reducing immigration tends to produce measurable, sector-specific labor shortages in the short-to-medium term — this is already visible in U.S. agriculture, construction, hospitality, and caregiving since 2025 enforcement tightened. Whether it causes an economy-wide crisis depends on: how fast the population is aging, how dependent specific industries are on foreign-born labor, whether wages/automation/participation rates adjust, and how abrupt the immigration change is. Gradual, modest reductions paired with other labor-market adjustments are more absorbable than sudden, large-scale cuts in immigrant-dependent sectors.