Last updated: 2025 BLS data · Page refreshed:
How much does a Data Scientists actually take home in California?
Progressive (up to 13.3%) — 31.2% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Data Scientists earning $141,590 in California (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $141,590 | — |
| Federal Income Tax | -$23,520 | 16.6% |
| California State Income Tax | -$9,820 | 6.9% |
| Social Security (OASDI) | -$8,778 | 6.2% |
| Medicare | -$2,053 | 1.5% |
| Total Taxes | -$44,172 | 31.2% |
| Take-Home Pay | $97,417 | 68.8% |
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) | $77,480 | -$18,672 | $58,807 | 24.1% |
| 25th Percentile (P25) | $103,360 | -$28,752 | $74,607 | 27.8% |
| Median (P50) | $141,590 | -$44,172 | $97,417 | 31.2% |
| 75th Percentile (P75) | $186,820 | -$61,564 | $125,255 | 33.0% |
| 90th Percentile (P90) | $224,920 | -$76,498 | $148,421 | 34.0% |
A Data Scientists in California faces a combined 31.2% effective tax rate, taking home $97,417 out of $141,590. The progressive (up to 13.3%) adds $9,820 on top of federal and FICA taxes. In a no-income-tax state, this salary would yield approximately $107,238 — a difference of $9,820/year.
A Data Scientists in California loses 31.2% of gross pay to taxes — higher than the ~25% national midpoint. Of the $141,590 gross, $97,418 lands in the paycheck after federal ($23,520), state ($9,821), and FICA ($10,832) withholding.
California uses a progressive state income tax, so brackets escalate as wages rise. For this Data Scientists salary the state tax works out to $9,821 (6.9% effective) — on top of federal and FICA.
Federal tax on this Data Scientists salary is $23,520 (53%), but combined state ($9,821, 22%) + FICA ($10,832, 25%) make up the other 47% of the bill.
The state-tax gap is substantial: a Data Scientists earning this gross in a no-income-tax state would net about $107,238 — an extra $9,821 (10.1%) annually compared with California.
For Data Scientists after-tax pay, California ranks #2 of 49 states — top quartile. High gross wages or low state-tax burden (or both) drive the strong ranking.
Translated into paycheck cadences, $97,418 net/year works out to $8,118/month or $3,747/bi-weekly for this Data Scientists in California — the numbers that actually hit a checking account after every deduction.
Where does a Data Scientists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
California ranks #2 out of 49 states for Data Scientists after-tax take-home pay.
A Data Scientists in California earning a median salary of $141,590 will take home approximately $97,417 per year after federal income tax ($23,520), state income tax ($9,820), and FICA ($10,831). That is $8,118 per month or $3,746 per bi-weekly paycheck.
The effective total tax rate for a Data Scientists in California is 31.2%, broken down as: federal income tax 16.6%, California state tax 6.9%, and FICA (Social Security + Medicare) 7.7%. 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 $141,590, the state income tax amounts to $9,820 per year, which is an effective state rate of 6.9%.
After all taxes, a Data Scientists in California takes home approximately $8,118 per month, or about $46.84 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 2025 BLS median salary of $141,590 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 — $97,417/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
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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