Format
All rate schedules have an identical format, containing four columns and six rows (called “brackets”). The first two columns indicate the range of taxable income that a taxpayer must have to qualify for a particular tax rate. The third column indicates the tax rate itself. The fourth column gives the range of income to which the current marginal rate applies.
Given that Congress has prescribed a system of progressive taxation, all but the lowest-earning taxpayers pay distinct rates for different parts of their income.
The following are the IRS rate schedules for 2013:
Schedule X — Single
| If taxable income is over-- | But not over-- | The tax is: | of the amount over-- |
|---|---|---|---|
| $0 | $8,925 | 10% | $0 |
| $8,925 | $36,250 | $892.50 + 15% | $8,925 |
| $36,250 | $87,850 | $4,991.25 + 25% | $36,250 |
| $87,850 | $183,250 | $17,891.25 + 28% | $87,850 |
| $183,250 | $398,350 | $44,603.25 + 33% | $183,250 |
| $398,350 | $400,000 | $115,586.25 + 35% | $398,350 |
| $400,000 | $116,163.75 + 39.6% | $400,000 |
Schedule Y-1 — Married filing Jointly or Qualifying Widow(er)
| If taxable income is over-- | But not over-- | The tax is: | of the amount over-- |
|---|---|---|---|
| $0 | $17,000 | 10% | $0 |
| $17,000 | $69,000 | $1,700.00 + 15% | $17,000 |
| $69,000 | $139,350 | $9,500.00 + 25% | $69,000 |
| $139,350 | $212,300 | $27,087.50 + 28% | $139,350 |
| $212,300 | $379,150 | $47,513.50 + 33% | $212,300 |
| $379,150 | $102,574.00 + 35% | $379,150 |
Schedule Y-2 — Married Filing Separately
| If taxable income is over-- | But not over-- | The tax is: | of the amount over-- |
|---|---|---|---|
| $0 | $8,500 | 10% | $0 |
| $8,500 | $34,500 | $850.00 + 15% | $8,500 |
| $34,500 | $69,675 | $4,750.00 + 25% | $34,500 |
| $69,675 | $106,150 | $13,543.75 + 28% | $69,675 |
| $106,150 | $189,575 | $23,756.75 + 33% | $106,150 |
| $189,575 | $51,287.00 + 35% | $189,575 |
Schedule Z — Head of Household
| If taxable income is over-- | But not over-- | The tax is: | of the amount over-- |
|---|---|---|---|
| $0 | $12,150 | 10% | $0 |
| $12,150 | $46,250 | $1,215.00 + 15% | $12,150 |
| $46,250 | $119,400 | $6,330.00 + 25% | $46,250 |
| $119,400 | $193,350 | $24,617.50 + 28% | $119,400 |
| $193,350 | $379,150 | $45,323.50 + 33% | $193,350 |
| $379,150 | $106,637.50 + 35% | $379,150 |
Caution: These tables shown above are accurate for 2013 only and do not apply for any other year. For 2012
Read more about this topic: Rate Schedule (federal Income Tax)