Marginal vs effective in one example
Single filer, $100,000 taxable income (2026 brackets, illustrative): 10% on the first $11,600, 12% on $11,601–$47,150, 22% on $47,151–$100,525, then 24%. Total tax ≈ $17,400. Effective rate = 17.4%, not 22% or 24%.
If you take a $5,000 raise and cross into 24%, only the new $5,000 is taxed at 24%. Your existing $100k is still taxed in its original brackets. You always end up with more take-home from the raise.
Why 'a raise put me in a worse bracket' is a myth
It's mathematically impossible for a raise to reduce your take-home pay through bracket movement alone. Each bracket only applies to income in its range.
Raises CAN affect take-home through other phase-outs: ACA subsidies, student-loan interest deduction, Roth IRA contribution limits, child tax credit phase-outs. Those are bracket cliffs but separate from the income-tax brackets themselves.
2026 federal income tax brackets (illustrative; verify with IRS)
- 10% on income up to $11,600 (single) / $23,200 (MFJ).
- 12% on income $11,601–$47,150 / $23,201–$94,300.
- 22% on income $47,151–$100,525 / $94,301–$201,050.
- 24% on income $100,526–$191,950 / $201,051–$383,900.
- 32% on income $191,951–$243,725 / $383,901–$487,450.
- 35% on income $243,726–$609,350 / $487,451–$731,200.
- 37% on income above $609,350 / $731,201.
Bracket cliffs that DO matter
- ACA premium tax credit cliffs at certain MAGI thresholds, losing eligibility can cost thousands.
- Roth IRA contribution limits phase out between $146k–$161k single / $230k–$240k MFJ in 2026.
- Child Tax Credit phases out above $200k single / $400k MFJ.
- IRMAA Medicare premium surcharges at retirement age based on AGI from two years prior.
- Net Investment Income Tax (3.8%) on investment income above $200k single / $250k MFJ.
The role of deductions and credits
Deductions reduce taxable income, saving you your marginal rate × the deduction. A $1,000 deduction in the 22% bracket saves $220 in federal tax.
Credits reduce tax owed dollar-for-dollar. A $1,000 credit always saves $1,000. Credits are nearly always more valuable than deductions.
State income tax adds another layer
Nine states have no income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming.
California's top marginal bracket reaches 13.3%; New York City layers state and city brackets on top of federal. Always check your effective tax rate including state and local, it's the only number that matters for take-home decisions.
Long-term capital gains and qualified dividends
Long-term gains (assets held >1 year) are taxed at 0%, 15%, or 20% depending on taxable income, much lower than ordinary income brackets.
0% bracket: taxable income up to ~$47k single / ~$94k MFJ in 2026. Many retirees structure withdrawals to capture the 0% rate explicitly.
