How the US Federal Tax Brackets Work
The US uses a progressive tax system. You only pay each rate on the income within that bracket — not on your total income. So if you're in the 22% bracket, only the income above the 12% threshold is taxed at 22%.
Standard vs Itemized Deductions
The standard deduction ($14,600 for single filers in 2025) reduces your taxable income automatically. Itemizing makes sense only if your deductible expenses — mortgage interest, state taxes, charitable donations — exceed the standard deduction amount.
Q: What is the difference between effective and marginal tax rate?
Your marginal tax rate is the rate applied to your last dollar of income (your tax bracket). Your effective tax rate is the actual percentage of your total income paid in taxes — always lower than your marginal rate because lower income is taxed at lower rates.
Q: How can I reduce my tax bill legally?
Contribute to pre-tax accounts (401k, Traditional IRA, HSA), claim all eligible deductions, take advantage of tax credits, and consider timing large income or deductible expenses strategically. A CPA or tax professional can identify opportunities specific to your situation.