The Cost of a Border Wall vs. the Cost of Illegal Immigration

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The findings of this analysis show that if a border wall stopped a small fraction of the illegal immigrants who are expected to come in the next decade, the fiscal savings from having fewer illegal immigrants in the country would be sufficient to cover the costs of the wall. This analysis takes the likely education level of illegal border-crossers and applies fiscal estimates developed by the National Academies of Sciences, Engineering, and Medicine (NAS) for immigrants by education level. NAS calculates the future fiscal balance immigrants create — taxes paid minus costs. NAS reports fiscal balances as “net present values”, which places a lower value on future expenditures than on current expenditures.

Based on the NAS data, illegal border-crossers create an average fiscal burden of approximately $74,722 during their lifetimes, excluding any costs for their U.S.-born children. If a border wall stopped between 160,000 and 200,000 illegal crossers — 9 to 12 percent of those expected to successfully cross in the next decade — the fiscal savings would equal the $12 to $15 billion cost of the wall.

Among the findings:

  • There is agreement among researchers that illegal immigrants overwhelmingly have modest levels of education — most have not completed high school or have only a high school education.
  • There is also agreement that immigrants who come to America with modest levels of education create significantly more in costs for government than they pay in taxes.
  • A…

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