Last updated: 2025 BLS data · Page refreshed:
How much does a Radiation Therapists actually take home in Colorado?
4.4% flat rate — 26.5% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Radiation Therapists earning $108,020 in Colorado (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $108,020 | — |
| Federal Income Tax | -$15,605 | 14.4% |
| Colorado State Income Tax | -$4,752 | 4.4% |
| Social Security (OASDI) | -$6,697 | 6.2% |
| Medicare | -$1,566 | 1.4% |
| Total Taxes | -$28,621 | 26.5% |
| Take-Home Pay | $79,398 | 73.5% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Radiation Therapists in Colorado.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $90,970 | -$22,816 | $68,153 | 25.1% |
| 25th Percentile (P25) | $101,820 | -$26,510 | $75,309 | 26.0% |
| Median (P50) | $108,020 | -$28,621 | $79,398 | 26.5% |
| 75th Percentile (P75) | $121,520 | -$33,346 | $88,173 | 27.4% |
| 90th Percentile (P90) | $130,750 | -$36,673 | $94,076 | 28.0% |
After federal income tax ($15,605), state tax ($4,752), and FICA ($8,263), a Radiation Therapists in Colorado takes home $79,398 per year — or $6,616 per month. The effective tax rate of 26.5% is moderate compared to the national range.
A Radiation Therapists in Colorado loses 26.5% of gross pay to taxes — higher than the ~25% national midpoint. Of the $108,020 gross, $79,398 lands in the paycheck after federal ($15,605), state ($4,753), and FICA ($8,264) withholding.
Colorado applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Radiation Therapists salary that contributes $4,753 to the 4.4% effective state-tax burden.
Federal tax on this Radiation Therapists salary is $15,605 (55%), but combined state ($4,753, 17%) + FICA ($8,264, 29%) make up the other 45% of the bill.
Moving this same Radiation Therapists salary to a zero-state-tax state would yield around $84,151 net — a gain of $4,753 (6.0%) per year versus Colorado.
Colorado ranks #12 of 46 states for Radiation Therapists after-tax pay — comfortably in the upper half.
Translated into paycheck cadences, $79,398 net/year works out to $6,617/month or $3,054/bi-weekly for this Radiation Therapists in Colorado — the numbers that actually hit a checking account after every deduction.
Where does a Radiation Therapists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Colorado ranks #12 out of 46 states for Radiation Therapists after-tax take-home pay.
A Radiation Therapists in Colorado earning a median salary of $108,020 will take home approximately $79,398 per year after federal income tax ($15,605), state income tax ($4,752), and FICA ($8,263). That is $6,616 per month or $3,053 per bi-weekly paycheck.
The effective total tax rate for a Radiation Therapists in Colorado is 26.5%, broken down as: federal income tax 14.4%, Colorado state tax 4.4%, and FICA (Social Security + Medicare) 7.7%. This assumes a single filer with the standard deduction for 2024.
Colorado has a 4.4% flat rate. On a Radiation Therapists's median salary of $108,020, the state income tax amounts to $4,752 per year, which is an effective state rate of 4.4%.
After all taxes, a Radiation Therapists in Colorado takes home approximately $6,616 per month, or about $38.17 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 $108,020 for Radiation Therapists in Colorado, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Colorado state income tax (4.4% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $79,398/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