California vs 
Idaho
Take-home pay after federal tax, state income tax, and FICA — calculated with the same engine as our paycheck calculator.
By Sammy S. · Founder · AuthorUpdated for 2026
Winner at $100k
Idaho
Extra take-home / year
$1,086
Per month
$91
Over 10 years
$10,860
Moving from California → Idaho at $100,000
Metric vs metric
Lower tax and cost figures generally favor the highlighted cell. Rate structure notes sit under each state's calculator link.
| Metric | California | Idaho |
|---|---|---|
| Income tax | 13.30% · Progressive (top 13.30%) | 5.30% · Flat 5.30% |
| Combined sales tax | ~9.03% | ~6.03% |
| Effective property tax | ~0.7% | ~0.5% |
| Cost of living index | 140.5 | 101.7 |
| Median household income | $93,500 | $70,800 |
| Unemployment rate | 4.8% | 3% |
Dig into each state's paycheck
California rate structure
Progressive brackets with a top marginal rate of about 13.30%.
Idaho rate structure
Flat 5.30% state income tax on taxable wages (before credits).
Overview
California (Progressive (top 13.30%)) vs Idaho (Flat 5.30%). At $100,000 gross (single), Idaho typically leaves you with about $1,086 more take-home than California after federal, state, and FICA. Sales tax ~9.03% vs ~6.03%; property tax ~0.7% vs ~0.5%. Median household income (ACS 2024): $93,500 vs $70,800.
Take-home by income
Net pay after federal income tax, state income tax, and FICA — single filer, standard deduction, no dependents (2026). Advantage is take-home in Idaho minus California.
| Gross | California take-home | Idaho take-home | Advantage |
|---|---|---|---|
| $50,000 | $40,566 | $39,705 | −$861 |
| $75,000 | $57,781 | $57,618 | −$163 |
| $100,000Headline | $72,794 | $73,880 | +$1,086 |
| $150,000 | $102,105 | $105,841 | +$3,736 |
| $200,000 | $131,941 | $138,327 | +$6,386 |
| $500,000 | $290,223 | $313,977 | +$23,754 |
Assumptions: single filer, standard deduction, no dependents, tax year 2026. At $100k: FICA ≈ $7,650 in both states; effective total tax rate ≈ 27.2% in California vs 26.1% in Idaho. Local city taxes are not included unless noted.
$100k tax breakdown: California vs Idaho
Where a $100,000 paycheck goes after federal income tax, state income tax, and FICA (2026, single filer).
| Line item | California | Idaho |
|---|---|---|
| Gross pay | $100,000 | $100,000 |
| Federal income tax (est.) | $13,170 | $13,170 |
| State income tax | $5,086 | $5,300 |
| FICA (SS + Medicare) | $7,650 | $7,650 |
| Take-home pay | $72,794 | $73,880 |
| Effective total tax rate | 27.2% | 26.1% |
| Monthly take-home | $6,066 | $6,157 |
Federal estimates can differ slightly between states when state interactions affect taxable income. Combined sales tax ~9.03% (California) vs ~6.03% (Idaho); effective property tax ~0.7% vs ~0.5%.
Pros & cons: California vs Idaho
Tax structure, living costs, and lifestyle trade-offs beyond the paycheck number.
California
Pros
- Higher median household income ($93,500 ACS 2024 vs $70,800)
- Modeled with our 2026 federal + state + FICA paycheck engine
- Use the California paycheck calculator for your filing status and deductions
Cons
- −State income tax (Progressive (top 13.30%)) reduces take-home vs a $0-income-tax peer
- −Roughly $1,086/year less take-home at $100k vs Idaho
- −Higher combined sales tax (~9.03% vs ~6.03% in Idaho)
- −Higher effective property tax (~0.7% vs ~0.5% in Idaho)
- −Higher cost of living index (140.5 vs 101.7; 100 = US average)
Idaho
Pros
- Lower top/marginal state rate (Flat 5.30%) than California (Progressive (top 13.30%))
- About $1,086/year more take-home at $100k gross (single) vs California
- Lower combined sales tax (~6.03% vs ~9.03% in California)
- Lower effective property tax (~0.5% vs ~0.7% in California)
- Lower cost of living index (101.7 vs 140.5; 100 = US average)
Cons
- −Lower median household income ($70,800 ACS 2024 vs $93,500)
- −Local city/county taxes and credits are not fully modeled in the headline ladder
- −Housing, insurance, and wages can outweigh pure income-tax differences
Who wins when
Quick read on when each state is the better fit — beyond the headline tax number.
- Idaho wins on take-home pay at every salary band in our ladder (single filer, standard deduction).
- California: Higher median household income ($93,500 ACS 2024 vs $70,800)
- California: Modeled with our 2026 federal + state + FICA paycheck engine
- Idaho: Lower top/marginal state rate (Flat 5.30%) than California (Progressive (top 13.30%))
- Idaho: About $1,086/year more take-home at $100k gross (single) vs California
How we calculate California vs Idaho
Tax engine. Federal income tax uses 2026 IRS brackets and the standard deduction for a single filer. FICA includes Social Security and Medicare employee shares. State income tax applies California's and Idaho's rules as modeled in our US calculator (Progressive (top 13.30%) vs Flat 5.30%).
What's included. Wage income only — no capital gains, self-employment tax, itemized deductions, credits, or local city wage taxes (e.g. NYC) unless noted. Sales tax (~9.03% vs ~6.03%) and property tax (~0.7% vs ~0.5%) are context metrics, not subtracted from the take-home ladder.
Cost of living. COL indexes (140.5 vs 101.7, 100 = US average) and median household income ($93,500 vs $70,800) help interpret whether a paycheck win buys more in real life. For city-level equivalent salary, use the California → Idaho relocation calculator.
Frequently asked questions
Common questions about California vs Idaho taxes, take-home pay, and relocation.
Moving California → Idaho?
Model cost-of-living equivalent salary, or open each state's paycheck calculator with your filing status and deductions.
Related tools
Estimates only for tax year 2026. Not tax advice — verify with your state tax agency or a CPA before relocating. Figures assume a single filer with the standard deduction and no dependents.