What happens if U.S. debt gets too high?
Matthew Perez
Updated on April 24, 2026
National Security Issues
The higher the national debt becomes, the more the U.S. is seen as a global credit risk. This could impact the U.S.'s ability to borrow money in times of increased global pressure and put us at risk for not being able to meet our obligations to our allies—especially in wartime.How much debt is too much for the US?
A good debt-to-income ratio is less than or equal to 36%. Any debt-to-income ratio above 43% is considered to be too much debt.Does it matter if America is in debt?
While public debt remains a concern for countries that borrow US dollars, it is less of an issue for the US itself. The dollar is the world's reserve currency and more debt doesn't decrease outside investors' demand for it. Economists sometimes believe that increasing the federal debt weakens the dollar during crises.How does the US debt affect me?
The National Debt Affects EveryoneThis reduces the amount of tax revenue available to spend on other governmental services because more tax revenue will have to be paid out as interest on the national debt.