I read the following in an article…
  • In 1979, at the height of the last 40year stagflation cycle, 15% rates meant the government’s interest payments on its debt (of about $800 billion) were $120 billion, or approximately 25% of its annual revenues.
  • Today, 15% rates on its $40 trillion of debt would be $6 trillion, more than the roughly $5 trillion in annual revenues… which is more than 100% of those revenues.
I built a table to visualize it. This is very scary should rates ever get out of hand.
I added an excel file so that you can see the table better.
interest
1980
2026
Increase
2026
Increase
Govt Debt
800 billion
40 trillion
500%
40 trillion
500%
Interest rate
15%
3.0%
-80%
15% *
* hypothetical
Interest payments
120 billion
1.2 trillion
1000%
6 trillion
5000%
Govt Tax reciepts
500 billion
5 trillion
1000%
5 trillion
1000%
Percentage of Int Payments
24%
24%
no change
120%
500%