Colorado Paycheck Calculator
Estimate your Colorado take-home pay. Colorado has a flat 4.4% state income tax for 2026 (reduced from 4.55% via Proposition 121, voter-approved in 2022). Colorado's constitution requires a flat rate. The state starts from your federal taxable income — meaning you've already taken the $16,100 single / $32,200 married federal standard deduction before Colorado's 4.4% applies. No local income tax anywhere in the state, but watch for occupational privilege taxes (OPT) in Denver, Aurora, and Greenwood Village — small flat-dollar amounts not modeled here.
How to use this calculator
- Type your gross pay per paycheck — what you earn before any tax or deduction comes out.
- Pick your pay frequency (biweekly is the default — it's the most common).
- Set your federal filing status (Single or Married Filing Jointly).
- If you contribute to a traditional 401(k), enter the percentage. Add any pre-tax health or HSA deductions per paycheck.
- The result updates as you go. Use Share link to send your numbers to someone else without retyping them.
A real example: a $60,000 salary in Denver
Say you take a $60,000-a-year job in Denver, paid every two weeks, single, no 401(k). That's $2,307.69 gross per paycheck. The math goes like this for the year:
| Line | Amount |
|---|---|
| Gross pay | $60,000.00 |
| Federal income tax (after the $16,100 federal standard deduction) | −$5,020.00 |
| Social Security (6.2% up to $184,500) | −$3,720.00 |
| Medicare (1.45%) | −$870.00 |
| Colorado tax (4.4% × ($60,000 − $16,100 federal SD)) | −$1,931.60 |
| Take-home for the year | $48,458.40 |
| Take-home per biweekly check | $1,863.78 |
About 19% of your gross goes to federal, FICA, and CO state tax combined. Colorado's 4.4% rate looks higher than Arizona's 2.5%, but both use the federal standard deduction as the starting point — so the headline rate isn't directly comparable to states with their own (smaller) standard deductions like North Carolina or Kentucky. Colorado also runs a TABOR (Taxpayer's Bill of Rights) refund mechanism — when state revenue exceeds constitutional limits, excess money flows back to taxpayers as periodic refunds ($400-$800 per person in recent years).
Now add a 5% traditional 401(k) and $200/month in pre-tax health premiums on a $120,000 salary, married, paid monthly: gross $10,000/mo, $500 to the 401(k), $200 to health. CO follows federal — both pre-tax items reduce CO taxable income, plus the federal SD doubles to $32,200 for MFJ. The state tax for the year runs about $3,492, and your monthly take-home lands around $7,509.
How a Colorado paycheck is calculated
Colorado uses a flat tax for 2026. The formula is:
A few Colorado-specific details worth knowing:
- Federal taxable income is the starting point. Colorado is one of five states (with Montana, New Mexico, North Dakota, South Carolina) that uses federal taxable income directly — meaning you've already subtracted the federal $16,100/$32,200 SD before Colorado's 4.4% applies. This makes effective Colorado tax lower than the headline rate suggests.
- 4.4% is constitutionally mandated as flat. The Colorado Constitution requires a flat individual income tax rate — progressive brackets are not permitted without a constitutional amendment. The rate has been reduced from 4.55% (2020) via Proposition 121 (voter-approved 2022) to the current 4.4%.
- TABOR refunds are real money. When Colorado revenue exceeds limits set by the Taxpayer's Bill of Rights (TABOR, 1992 constitutional amendment), excess funds get refunded. Recent refunds ranged from $400-$800 per person. These don't reduce your tax bill directly — they arrive separately, usually as a credit on your state return the following year.
- Social Security is fully exempt for Colorado tax purposes (the exemption was expanded in recent legislation). Other retirement income gets a partial pension/annuity subtraction depending on age.
- No general local income tax — but watch for OPT. Colorado doesn't have local income tax in the traditional sense, but Denver, Aurora, Greenwood Village, Sheridan, and a few other cities charge small flat-dollar Occupational Privilege Taxes (OPT) — typically $5.75/month for employees plus a small employer match. Not modeled here.
What Colorado paychecks look like at common salaries (single, no 401k)
| Annual salary | Federal tax | FICA | CO tax (4.4%) | Net per year | Net per biweekly check |
|---|---|---|---|---|---|
| $40,000 | $2,620.00 | $3,060.00 | $1,051.60 | $33,268.40 | $1,279.55 |
| $50,000 | $3,820.00 | $3,825.00 | $1,491.60 | $40,863.40 | $1,571.67 |
| $60,000 | $5,020.00 | $4,590.00 | $1,931.60 | $48,458.40 | $1,863.78 |
| $75,000 | $7,670.00 | $5,737.50 | $2,591.60 | $59,000.90 | $2,269.27 |
| $100,000 | $13,170.00 | $7,650.00 | $3,691.60 | $75,488.40 | $2,903.40 |
| $150,000 | $24,734.00 | $11,475.00 | $5,891.60 | $107,899.40 | $4,149.98 |
Numbers above are estimates with the 2026 standard deduction, single filer, no 401(k) or pre-tax deductions. Your actual withholding will differ based on your W-4.
Tips to take home more
- Max out pre-tax benefits first. Health insurance, HSA, and FSA dollars reduce both your federal tax and FICA — that's a roughly 22–28% discount on those expenses for most people.
- A 401(k) is real money, not a deduction. A 5% contribution on $60k is $3,000 the IRS doesn't see right now. You're not losing it — you're moving it.
- Check your W-4 if your refund or bill is large. A big refund means you overpaid all year; a big bill means you underpaid. Either way, the IRS withholding estimator at irs.gov/W4App helps fix it.
- Track the Social Security cap. If you'll cross $184,500 this year, your last few checks will be noticeably bigger — useful to know if you're planning big purchases.
Frequently asked questions
What is Colorado's state income tax rate in 2026?
Colorado has a flat 4.4% state income tax for 2026 (reduced from 4.55% via Proposition 121, voter-approved in 2022). Colorado's constitution requires the rate to be flat — no progressive brackets allowed. Tax applies to federal taxable income (i.e., after the federal standard deduction).
How much of a $60,000 salary do you take home in Colorado?
A single filer earning $60,000 in Colorado with no pre-tax deductions takes home roughly $48,458 a year, or about $1,864 every two weeks. That's $5,020 federal, $4,590 FICA, and $1,931.60 CO state tax (4.4% on $43,900 after the federal $16,100 standard deduction).
Why does Colorado use federal taxable income instead of its own standard deduction?
Colorado's individual income tax was designed to piggyback on the federal return — you compute your federal taxable income first, then apply Colorado's 4.4% flat rate. This simplifies filing (Form DR 0104 is one of the shortest state returns) but means Colorado's effective rate looks worse on paper than it really is compared to states like Pennsylvania (no SD) or Kentucky ($3,360 SD).
What is the TABOR refund?
TABOR (the Taxpayer's Bill of Rights, a 1992 Colorado constitutional amendment) limits how much state revenue can grow each year. When the state collects more than the limit, the excess must be refunded to taxpayers. Refunds have ranged from $400-$800 per person in recent years. These show up separately from your normal state tax refund, typically as a credit on the following year's return.
Does Denver have a local income tax?
Not in the traditional sense. Colorado doesn't allow local income taxes on wages. However, Denver, Aurora, Greenwood Village, Sheridan, and a few other Colorado cities charge small flat-dollar Occupational Privilege Taxes (OPT) — typically $5.75/month per employee for the city, plus $4/month from the employer. Total is under $120/year for the employee — not modeled in this calculator.
Does this calculator match what my employer withholds?
It gives a close estimate, not an exact match. Employers withhold using IRS Publication 15-T and the full details on your Form W-4 — extra withholding, multiple jobs, dependents, credits. This tool models the standard deduction with a single or married filing status, which is what most people end up close to at tax time.