Part I — The Basics · Lesson 16 · How The System Works

How governments fund themselves

Where every public dollar comes from

Three layers of government — federal, state, local — each fund themselves differently and each affect your life differently. Federal funds Social Security, Medicare, defense, and interest on debt. State funds Medicaid, education, transportation, prisons. Local funds schools, police, fire, sanitation, parks. Most people only see local taxes (property bill) and federal taxes (paycheck) and don't realize their state and city are running entirely separate machines.

Layer

Total revenue

$4.9T

Total spending

$6.8T

Annual gap

−$1.9T

Outstanding debt

$36T

Where the money comes from

Individual income tax 49%

Payroll tax (FICA) 35%

Corporate income tax 10%

Customs/excise/other 6%

Where the money goes

Social Security 22%

Medicare 14%

Medicaid 10%

Defense 13%

Interest on debt 13%

Veterans/income security 14%

All other 14%

Federal budget. Roughly 27% borrowed annually. National debt ≈ 122% of GDP.

How federal debt actually works

The Treasury issues bonds. Auctions them to primary dealers (large banks). Those dealers sell to: foreign central banks (~30%), the Federal Reserve (~15%, varies with QE), US institutional investors like pension funds and mutual funds (~30%), banks (~10%), and individuals (~5%). When you hear "China owns our debt," they own about 8% of foreign-held Treasuries — about $775 billion of $36 trillion total. Real but not the bogeyman it's often portrayed as. Japan owns more.

Interest on the debt is now ~$1 trillion/year and rising. As old debt rolls over at higher rates (4-5% now vs ~1% in 2020), the interest line item grows faster than tax revenue can. This is the actual fiscal crunch: we're not technically insolvent, but rising interest crowds out everything else.

The "trickle-down" of unlimited spending

When the federal government runs persistent deficits funded by money creation (rather than borrowing from real savings), three things happen over time:

One: the dollar weakens against goods (inflation), eroding savings and fixed incomes most.

Two: asset prices inflate first (Cantillon effect — money enters via the financial system, so financial assets inflate before consumer prices), benefiting asset holders disproportionately.

Three: debt service crowds out productive spending. By 2034, projected federal interest will exceed Medicare. The math doesn't care about politics.

Where this becomes citizen-facing: when government spends without offsetting revenue, the bill arrives later through inflation, currency depreciation, asset bubbles, and eventual austerity. The people most hurt are those without assets (renters, fixed income, low-income workers). The people most helped (in the short run) are those with leveraged assets (homeowners, equity holders, business owners with debt). This is the actual distributional consequence — not collapse, but a slow regressive transfer.

What you just learned

"How does the government pay for it?" has three honest answers: taxation, transfers from above, or borrowing. None are free. The real political fight is which mix gets used — because each mix transfers wealth in different directions, between different groups, with different time horizons. Voting on "spending" without understanding the funding mix is voting blind.