Paycheck Calculator
On $3,250 every 2 weeks gross in California, your take-home is about $2,238.03 per paycheck — $58,189 a year on $84,500 of salary, an effective tax rate of 21.4%. That is after federal income tax, Social Security at 6.2%, Medicare at 1.45%, California income tax, a 6% traditional 401(k) contribution, and a $120 health premium.
| Gross pay (every 2 weeks) | $3,250.00 |
|---|---|
| Traditional 401(k) (6.0%)Pre-tax for income tax, but still subject to Social Security and Medicare. | −$195.00 |
| Health premium (pre-tax)Section 125 premiums reduce both income tax and FICA wages. | −$120.00 |
| Federal income tax | −$306.08 |
| Social Security (6.20%) | −$194.06 |
| Medicare (1.45%) | −$45.39 |
| California income tax | −$110.75 |
| Roth 401(k) (0.0%)Post-tax — comes out after everything else. | $0.00 |
| CA State Disability Insurance (SDI)The 2026 SDI withholding rate is 1.3%, up from 1.2% in 2025. Senate Bill 951 removed the taxable wage ceiling effective 1 January 2024, so this applies to every dollar of wages with no cap. It does not apply to self-employment income unless you elect into Disability Insurance Elective Coverage. | −$40.69 |
| Take-home pay | $2,238.03 |
How your paycheck is calculated
Deductions come off in a specific order, and each tax has a different base. That is the whole reason two people with the same salary can take home noticeably different amounts.
Read the first two lines together. The 401(k) appears in one base and not the other, which is the single most consequential asymmetry on a US payslip and the subject of the next section.
Not all pre-tax dollars are worth the same
Every paycheck calculator lumps "pre-tax deductions" into one bucket. They are not one bucket. A traditional 401(k) contribution is excluded from income tax but is still fully subject to Social Security and Medicare. A health premium taken under a Section 125 plan is excluded from income tax and from the FICA wage base, and from California's wage-based payroll levy as well.
Same $5,000 routed two ways, on the pay in this example:
| $5,000 a year through… | Take-home falls by | FICA saved | Cost per $1 |
|---|---|---|---|
| Traditional 401(k) | $3,487.12 | $0.00 | 0.6974 |
| Section 125 health premium | $3,039.66 | $382.50 | 0.6079 |
The premium route keeps $447.46 more in your pocket for the same money moved. $382.50 of that is FICA the 401(k) cannot avoid, and $65.00 is California payroll tax assessed on wages. The 401(k) saves exactly $0.00 of FICA — nothing, because deferral does not change what you earned for Social Security purposes.
This is not an argument against the 401(k), which is doing something else entirely: deferring income to a year when your rate may be lower, and buying decades of untaxed growth. It is an argument against reading one "pre-tax" label and assuming two deductions are equivalent. If you have a choice about how benefits are structured — an HSA, a premium conversion plan, a dependent care FSA — the ones that dodge FICA are worth more per dollar than the ones that do not.
Worth noting the mirror image: for a self-employed person the same health premium is charged self-employment tax in full, because the deduction is written against income tax only. The self-employment tax calculator quantifies that side.
A worked example
$3,250 every 2 weeks in California, 6% 401(k), $120 health premium
| Line | Per period | Per year |
|---|---|---|
| Gross pay (every 2 weeks) | $3,250.00 | $84,500.00 |
| Traditional 401(k) (6.0%) | $-195.00 | $-5,070.00 |
| Health premium (pre-tax) | $-120.00 | $-3,120.00 |
| Federal income tax | $-306.08 | $-7,958.08 |
| Social Security (6.20%) | $-194.06 | $-5,045.56 |
| Medicare (1.45%) | $-45.39 | $-1,180.14 |
| California income tax | $-110.75 | $-2,879.50 |
| CA State Disability Insurance (SDI) | $-40.69 | $-1,057.94 |
| Take-home | $2,238.03 | $58,188.78 |
Effective tax rate: 21.4%. Note that the $5,070.00 of 401(k) is inside the gap between gross and take-home but is not tax — it is still your money, sitting in your account. Tax alone is $21,241.22.
The same salary in five states
Identical gross, identical deductions, different states:
| State | State tax + payroll | Take-home per year | Effective rate |
|---|---|---|---|
| Florida | $0 | $62,126 | 16.8% |
| Texas | $0 | $62,126 | 16.8% |
| Illinois | $3,633 | $58,494 | 21.1% |
| California | $3,937 | $58,189 | 21.4% |
| New York | $3,975 | $58,151 | 21.5% |
A $3,975 annual spread across these five. Worth putting next to the fact that states without an income tax raise revenue through property and sales taxes instead, which fall on different people in different proportions — the take-home column is a real comparison, not a complete one.
Why your refund is not a bonus
Withholding is an estimate your employer makes on the IRS's behalf, using the W-4 you filled in once and probably have not looked at since. It is not your tax. A large refund means you lent the government money at 0% for up to sixteen months; a large bill means the opposite.
The W-4 has not had "allowances" since 2020. It now asks for dollar amounts directly: step 3 for dependent credits, 4a for other income, 4b for deductions beyond the standard, and 4c for extra withholding per period. The most common cause of an unexpected bill is step 2 — two jobs, or a working spouse, each withholding as though its salary were the household's only income, so both under-withhold against a jointly progressive rate.
Who this is for
Anyone checking a payslip against what it should be, weighing a job offer against a current salary, or deciding how much to put into a 401(k). It is most useful run twice — once as you are paid now, once with the change you are considering — because the per-paycheck difference is usually much smaller than people expect and the annual difference much larger.
What this does not account for
- Local and city income taxes beyond the state level.
- Federal tax credits. The child tax credit and other federal credits are not modelled — the dependents field feeds state exemptions only, so a filer with dependents will owe less federally than shown.
- Wage garnishments, union dues, and employer-specific deductions.
- Bonuses and supplemental wages, which are withheld at a flat supplemental rate rather than through the bracket table.
- Employer contributions — a 401(k) match and the employer's half of your premium are real compensation that never appears on the gross line.
- Year-to-date effects. Each period is computed as if it were typical, so the Social Security wage base cut-off part-way through a year is not modelled per period.
- 5 states are modelled (California, Florida, Illinois, New York, Texas).
Sources and dates
Federal brackets, the standard deduction, FICA rates and wage base, and each state's schedule come from the IRS and state revenue departments for tax year 2026, listed below with the date each was checked. The pre-tax comparison figures are computed by running this page's own engine both ways rather than quoted. If a figure disagrees with your payslip, trust your payslip and let us know.
Questions people actually ask about this
How much of my paycheck goes to taxes?
On this example, 21.4% — $21,241 of tax on $84,500 of gross, before the $5,070 that goes to your own 401(k) rather than to anyone else.
Keeping those separate matters. Money into a traditional 401(k) is still yours; it is deferred, not spent. Calculators that report a single "take-home" number without splitting deferral from tax make your effective rate look considerably worse than it is.
Does my 401(k) contribution reduce Social Security and Medicare tax?
No — and this is the most common misconception about pre-tax deductions. A traditional 401(k) is excluded from income tax only. Social Security and Medicare are assessed on your full gross wage, so on this example the $5,000 contribution saves $0.00 of FICA.
A Section 125 health premium is different: it is excluded from income tax and from the FICA wage base, saving $382.50 on the same amount. Routing $5,000 through the premium rather than the 401(k) leaves $447.46 more take-home. They are doing different jobs, but they are not interchangeable "pre-tax" dollars.
Why is my take-home lower than a salary calculator said?
Usually because the other calculator applied only federal tax and FICA. State income tax, which in California takes $2,879 a year here, and state payroll levies — another $1,058 are frequently omitted. Your own pre-tax deductions then come off on top of that.
Which of these five states pays the most take-home on the same salary?
On $84,500 of gross with identical deductions:
- Florida — $62,126 a year (no state income tax)
- Texas — $62,126 a year (no state income tax)
- Illinois — $58,494 a year ($3,633 of state tax)
- California — $58,189 a year ($3,937 of state tax)
- New York — $58,151 a year ($3,975 of state tax)
The spread between best and worst is $3,975 a year. That is a real number, but it is the smaller half of the question — housing costs typically move by multiples of it, and a state with no income tax funds itself through property and sales taxes instead.
Should I contribute to a traditional or Roth 401(k)?
The arithmetic reduces to one question: is your marginal rate higher now or in retirement? Traditional deducts now and taxes withdrawals; Roth taxes now and never again. Neither escapes FICA, so the choice does not change your Social Security and Medicare at all.
Two things that are not in the arithmetic and often decide it: Roth has no required minimum distributions, and a traditional contribution lowers your AGI, which can qualify you for credits and deductions that phase out. Enter both in the calculator to see the per-paycheck difference before deciding.
Why did my refund change when nothing about my job changed?
Withholding tables are re-issued each year as brackets and the standard deduction are inflation-adjusted, so the same salary and the same W-4 produce different withholding year to year. A refund is the gap between what was withheld and what you owed — it moves whenever either side moves, including when you had no say in it.
Where these numbers come from
Rates last checked against the sources below on .
Rate schedule version 2026.1, effective .
- IRS Rev. Proc. 2025-32 — inflation adjustments for tax year 2026 retrieved 2026-08-02
- IRS Topic 751 — Social Security and Medicare withholding rates retrieved 2026-08-02
- IRS — COLA increases for dollar limitations on benefits and contributions retrieved 2026-08-02
- IRS Rev. Proc. 2025-19 — 2026 HSA and HDHP inflation adjustments retrieved 2026-08-02
- IRS Publication 15-T — Federal income tax withholding methods
- IRS Form 1040-ES — Estimated tax for individuals