26Title 26The US tax code, read & explained

Start from your situation

Employee on a paycheck

Your employer withholds tax for you. But what you actually owe is settled on your return, and several 2025 changes may lower it.

1. How your tax is figured

  1. Start with income: wages, tips, interest and side income (§ 61).
  2. Subtract the standard deduction, $16,100 single or $32,200 married filing jointly for 2026 (§ 63).
  3. Apply the layered rates, 10% up to 37% (§ 1).
  4. Subtract credits (below). What's left, compared with what was withheld, is your refund or your bill.

2. Credits worth checking

3. New from 2025 to 2028

  • Tips: tipped workers can deduct up to $25,000 of reported tips.
  • Overtime: hourly workers can deduct the premium part of required overtime, up to $12,500 ($25,000 joint).

Both phase out above $150,000 of income ($300,000 joint), need a Social Security number valid for work, and leave payroll taxes unchanged.

4. Withholding is set on Form W-4

If you got a large bill or refund last year, update your W-4 with your employer. A big refund means you lent the government money interest-free during the year.

5. Selling your home?

Up to $250,000 of gain ($500,000 for couples) is tax-free if you lived there 2 of the last 5 years. See § 121.