How much does a Data Scientists actually take home in California?
Progressive (up to 13.3%) — 30.6% effective total tax rateData: BLS OEWS 2024 + IRS/State Tax Brackets 2024 • Updated 2026-04-02
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Detailed line-by-line tax calculation for a Data Scientists earning $133,690 in California (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $133,690 | — |
| Federal Income Tax | -$21,624 | 16.2% |
| California State Income Tax | -$9,086 | 6.8% |
| Social Security (OASDI) | -$8,288 | 6.2% |
| Medicare | -$1,938 | 1.5% |
| Total Taxes | -$40,937 | 30.6% |
| Take-Home Pay | $92,752 | 69.4% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Data Scientists in California.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $68,050 | -$15,003 | $53,046 | 22.0% |
| 25th Percentile (P25) | $94,240 | -$25,200 | $69,039 | 26.7% |
| Median (P50) | $133,690 | -$40,937 | $92,752 | 30.6% |
| 75th Percentile (P75) | $173,250 | -$56,848 | $116,401 | 32.8% |
| 90th Percentile (P90) | $213,080 | -$71,329 | $141,750 | 33.5% |
A Data Scientists in California faces a combined 30.6% effective tax rate, taking home $92,752 out of $133,690. The progressive (up to 13.3%) adds $9,086 on top of federal and FICA taxes. In a no-income-tax state, this salary would yield approximately $101,838 — a difference of $9,086/year.
Where does a Data Scientists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
California ranks #7 out of 51 states for Data Scientists after-tax take-home pay.
A Data Scientists in California earning a median salary of $133,690 will take home approximately $92,752 per year after federal income tax ($21,624), state income tax ($9,086), and FICA ($10,227). That is $7,729 per month or $3,567 per bi-weekly paycheck.
The effective total tax rate for a Data Scientists in California is 30.6%, broken down as: federal income tax 16.2%, California state tax 6.8%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
California has a progressive (up to 13.3%). On a Data Scientists's median salary of $133,690, the state income tax amounts to $9,086 per year, which is an effective state rate of 6.8%.
After all taxes, a Data Scientists in California takes home approximately $7,729 per month, or about $44.59 per hour (based on a standard 2,080-hour work year). These figures assume a single filer, standard deduction, and no additional pre-tax deductions.
We start with the 2024 BLS median salary of $133,690 for Data Scientists in California, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), California state income tax (progressive (up to 13.3%)), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $92,752/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
This estimate assumes a single filer using the 2024 standard deduction ($14,600), with W-2 employment income only. It does not account for: itemized deductions, tax credits (e.g. earned income credit, child tax credit), local/city taxes, pre-tax contributions (401k, HSA, FSA), self-employment tax, or additional income sources. Actual take-home pay may differ. Consult a tax professional for personalized advice.
Our Methodology · Data Sources · Salary: BLS OEWS · Tax: IRS + State DOR