Colorado vs Illinois Paycheck Comparison 2026
Annual salary
Annual salary
Additional options (filing status, deductions)
$976 /yr more take-home in Colorado
$81/mo · $38 a paycheck.
Colorado
Illinois
$59,001/yr in Colorado vs $58,025/yr in Illinois.
Colorado
Take-home per paycheck
$2,269.27
$59,001/yr · 26x/yr
Tax rates
Illinois
Take-home per paycheck
$2,231.72
$58,025/yr · 26x/yr
Tax rates
What this paycheck affords in Colorado vs Illinois
Sized off $4,917/mo take-home in Colorado and $4,835/mo in Illinois. Every figure below is a spending rule of thumb, not a tax rule.
Purchasing power
$54,366 is what Colorado take-home is worth at Illinois prices
Against $58,025 actually paid in Illinois, leaving Illinois $3,659/yr ahead once cost of living is taken off.
Rent
$343 /mo more for a two-bedroom in Colorado
$1,523/mo in Colorado, $1,180/mo in Illinois.
The average two-bedroom takes 31% of take-home in Colorado and 24% in Illinois — a stretch in Colorado, inside the comfortable range in Illinois.
Buying a home
$270,000 more for the median home in Colorado
$530,000 in Colorado, $260,000 in Illinois.
The median home is 1.8× what this salary supports in Colorado and 1.1× in Illinois. Lenders size a mortgage off gross pay, so the budgets start from $75,000 at a 28% debt-to-income ratio, 6.75% over 30 years, each with its own state property tax rate.
What's left each month
$232 /mo more left over in Illinois
Colorado has $986/mo spare; Illinois has $1,218/mo spare.
Both paychecks cover the local average for everything. Splitting rent with one roommate would free up $762/mo in Colorado and $590/mo in Illinois.
Monthly cost by expense class
Every class on one scale, so housing's share of the month stays visible. Housing is the measured average two-bedroom; the rest are BLS Consumer Expenditure Survey averages moved by each state's cost-of-living index.
Other costs
| Cost | Colorado | Illinois |
|---|---|---|
| Regular gas | $3.53/gal | $3.60/gal |
| Electricity | $107/mo | $108/mo |
| Infant childcare | $1,820/mo | $1,342/mo |
Childcare sits outside the budget above because it applies to some households and not others — on its own it is 37% of take-home in Colorado and 28% in Illinois.
Sources: MERIC/C2ER Cost of Living Index (2025), AAA Fuel Gauge Report (2025), EIA State Electricity Profiles (2024), Child Care Aware of America (2024), Zillow Home Value Index (2025), BEA Regional Price Parities (2024)
Estimate based on 2026 tax rates and standard deductions. Does not include local taxes, itemized deductions, tax credits, or other individual circumstances.
Tax system comparison
Colorado: Colorado has a flat state income tax of 4.40%. All taxable income is taxed at the same rate.
Illinois: Illinois has a flat state income tax of 4.95%. All taxable income is taxed at the same rate.
Take-home pay at different salaries (single filer, 2026)
| Salary | Colorado take-home | Illinois take-home | Difference |
|---|---|---|---|
| $50,000 | $40,863 | $40,025 | + $839 |
| $75,000 | $59,001 | $58,025 | + $976 |
| $100,000 | $75,488 | $74,375 | + $1,114 |
| $150,000 | $107,899 | $106,511 | + $1,389 |
| $200,000 | $140,835 | $139,172 | + $1,664 |
| $300,000 | $202,685 | $200,472 | + $2,214 |
Positive values mean higher take-home in Colorado. Assumes single filer, no deductions.
FAQ
Which state has lower taxes, Colorado or Illinois?
At a $100,000 salary, Colorado results in $1,114 more annual take-home pay. Colorado has a flat state income tax of 4.40%. All taxable income is taxed at the same rate. Illinois has a flat state income tax of 4.95%. All taxable income is taxed at the same rate.
How much more do you take home in Colorado vs the other state?
The difference depends on salary. At $50,000, the gap is $839/yr. At $150,000, it grows to $1,389/yr. At $300,000, the difference is $2,214/yr.
Do Colorado and Illinois have the same federal taxes?
Yes. Federal income tax, Social Security, and Medicare are the same in every state. Only state income tax differs. This calculator shows the combined effect of federal and state taxes on your take-home pay.
Is it cheaper to live in Colorado or Illinois?
Illinois is cheaper to live in. Cost of living in Colorado is 8% higher than in Illinois. Colorado's Regional Price Parity is 105.1 and Illinois's is 97.1 (US average = 100).
Is Illinois cheaper than Colorado?
Yes. Illinois has a lower cost of living than Colorado (index 97.1 vs 105.1). Housing is typically the biggest difference between the two states.
Is Colorado more expensive than Illinois?
Yes. Colorado has a higher cost of living (index 105.1) compared to Illinois (index 97.1). The national average is 100. Housing costs are typically the largest driver of the difference.
After cost of living, which state is actually cheaper?
At a $100,000 salary, take-home pay of $75,488 in Colorado has the purchasing power of $81,708 in Illinois terms. Conversely, $74,375 in Illinois equals $68,714 in Colorado terms. After adjusting for both taxes and cost of living, Colorado comes out ahead.
Colorado vs Illinois cost of living — what's the difference?
The overall cost of living is 8% different between Colorado and Illinois. Living costs are 5% above the national average Living costs are about 3% below the national average After taxes and cost of living, Colorado gives you more purchasing power on a $100,000 salary.
Do I need to file state tax returns in both Colorado and Illinois?
Colorado requires residents to file a state income tax return annually, typically due April 15. Illinois requires residents to file a state income tax return annually, typically due April 15. If you move between states mid-year, you typically file a part-year resident return in each state for the income earned while living there. Each state has its own tax return form — check your state's department of revenue website for the correct form and e-filing options.
Related tools
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- Colorado Cost of Living — Housing, groceries, gas, and overall index
- Illinois Cost of Living — Housing, groceries, gas, and overall index
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- How much house can you afford in Illinois?
- Colorado Tax Brackets — See 2026 marginal rates and effective tax rate
- Illinois Tax Brackets — See 2026 marginal rates and effective tax rate
- Colorado Bonus Tax Calculator — See how bonuses are taxed differently
- Illinois Bonus Tax Calculator — See how bonuses are taxed differently
- Pay Raise Calculator — See how a raise changes your take-home pay
- Gross-Up Calculator — Find the salary you need to hit a target take-home
- Salary to Hourly Converter — Convert annual salary to hourly rate
- Mortgage Calculator — Estimate monthly payments with local rates
Colorado Paycheck Estimator · Illinois Paycheck Estimator · All states