Topic 01 · 5 min read
Why Taxes Exist and Who Collects Them
Three layers of government, three different sets of rules.
Taxes fund roads, schools, defense, courts, and programs like Social Security and Medicare. They are collected at three levels — federal, state, and local — and each level writes its own rules. A single worker can face a federal income tax, a state income tax, a local wage tax, plus sales and property taxes on spending and ownership.
What to know
- Federal income tax
- Administered by the IRS under rules written by Congress. It is progressive: higher bands of income carry higher rates.
- Payroll taxes
- Social Security and Medicare are funded by a flat percentage of wages, split between worker and employer, with no standard deduction protecting the first dollar.
- State and local taxes
- Some states have no income tax at all; others tax income, and many rely heavily on sales tax or property tax instead.
- Taxes you pay without noticing
- Sales tax at the register, excise tax inside a gallon of fuel, and property tax built into rent are all part of the total bill.
- Rules change every year
- Amounts are indexed for inflation and Congress adjusts provisions regularly, which is why last year's figures are never quite right.
The tax benefit
Seeing all the layers at once explains why two people with identical salaries in different states can keep very different amounts.
Worked example
Same salary, two states
A $50,000 salary faces the same federal tax in both places, but a worker in a state with no income tax keeps roughly $2,000 more per year than one in a state with a 4% flat rate — though the first state may recover it through higher property or sales taxes.
Watch out for
- Moving states mid-year usually means filing in both.
- Working remotely for an out-of-state employer can create a filing duty in another state.
- Local city or school district taxes are easy to miss entirely.
Terms from this topic