Washington vs 
South Dakota
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
South Dakota
Extra take-home / year
$615
Per month
$51
Over 10 years
$6,150
Moving from Washington → South Dakota 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 | Washington | South Dakota |
|---|---|---|
| Income tax | 0% · No state income tax (0%) | 0% · No state income tax (0%) |
| Combined sales tax | ~9.57% | ~6.11% |
| Effective property tax | ~0.75% | ~1% |
| Cost of living index | 114.6 | 94.1 |
| Median household income | $90,800 | $69,800 |
| Unemployment rate | 4.2% | 2.2% |
Dig into each state's paycheck
Washington rate structure
No state income tax on wages; revenue relies more on sales and property taxes.
South Dakota rate structure
No state income tax on wages; revenue relies more on sales and property taxes.
Overview
Washington and South Dakota both have no state income tax on wages. At $100,000 gross, take-home differs mainly via local rules and other taxes — sales tax is ~9.57% in Washington vs ~6.11% in South Dakota; effective property tax ~0.75% vs ~1%. Median household income (ACS 2024): $90,800 vs $69,800. COL index: 114.6 vs 94.1.
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 South Dakota minus Washington.
| Gross | Washington take-home | South Dakota take-home | Advantage |
|---|---|---|---|
| $50,000 | $42,048 | $42,355 | +$307 |
| $75,000 | $61,131 | $61,593 | +$462 |
| $100,000Headline | $78,565 | $79,180 | +$615 |
| $150,000 | $112,869 | $113,791 | +$922 |
| $200,000 | $147,697 | $148,927 | +$1,230 |
| $500,000 | $337,402 | $340,477 | +$3,075 |
Assumptions: single filer, standard deduction, no dependents, tax year 2026. At $100k: FICA ≈ $7,650 in both states; effective total tax rate ≈ 21.4% in Washington vs 20.8% in South Dakota. Local city taxes are not included unless noted.
$100k tax breakdown: Washington vs South Dakota
Where a $100,000 paycheck goes after federal income tax, state income tax, and FICA (2026, single filer).
| Line item | Washington | South Dakota |
|---|---|---|
| Gross pay | $100,000 | $100,000 |
| Federal income tax (est.) | $13,170 | $13,170 |
| State income tax | $0 | $0 |
| FICA (SS + Medicare) | $7,650 | $7,650 |
| Take-home pay | $78,565 | $79,180 |
| Effective total tax rate | 21.4% | 20.8% |
| Monthly take-home | $6,547 | $6,598 |
Federal estimates can differ slightly between states when state interactions affect taxable income. Combined sales tax ~9.57% (Washington) vs ~6.11% (South Dakota); effective property tax ~0.75% vs ~1%.
Pros & cons: Washington vs South Dakota
Tax structure, living costs, and lifestyle trade-offs beyond the paycheck number.
Washington
Pros
- No state income tax on wages — $0 withholding vs South Dakota's state tax
- Lower effective property tax (~0.75% vs ~1% in South Dakota)
- Higher median household income ($90,800 ACS 2024 vs $69,800)
Cons
- −Roughly $615/year less take-home at $100k vs South Dakota
- −Higher combined sales tax (~9.57% vs ~6.11% in South Dakota)
- −Higher cost of living index (114.6 vs 94.1; 100 = US average)
- −Higher unemployment rate (4.2% vs 2.2%)
South Dakota
Pros
- No state income tax on wages — $0 withholding vs Washington's state tax
- About $615/year more take-home at $100k gross (single) vs Washington
- Lower combined sales tax (~6.11% vs ~9.57% in Washington)
- Lower cost of living index (94.1 vs 114.6; 100 = US average)
- Lower unemployment rate (2.2% vs 4.2%)
Cons
- −Higher effective property tax (~1% vs ~0.75% in Washington)
- −Lower median household income ($69,800 ACS 2024 vs $90,800)
- −Local city/county taxes and credits are not fully modeled in the headline ladder
Who wins when
Quick read on when each state is the better fit — beyond the headline tax number.
- South Dakota wins on take-home pay at every salary band in our ladder (single filer, standard deduction).
- Washington: No state income tax on wages — $0 withholding vs South Dakota's state tax
- Washington: Lower effective property tax (~0.75% vs ~1% in South Dakota)
- South Dakota: No state income tax on wages — $0 withholding vs Washington's state tax
- South Dakota: About $615/year more take-home at $100k gross (single) vs Washington
How we calculate Washington vs South Dakota
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 Washington's and South Dakota's rules as modeled in our US calculator (No state income tax (0%) vs No state income tax (0%)).
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 (~9.57% vs ~6.11%) and property tax (~0.75% vs ~1%) are context metrics, not subtracted from the take-home ladder.
Cost of living. COL indexes (114.6 vs 94.1, 100 = US average) and median household income ($90,800 vs $69,800) help interpret whether a paycheck win buys more in real life. For city-level equivalent salary, use the Washington → South Dakota relocation calculator.
Frequently asked questions
Common questions about Washington vs South Dakota taxes, take-home pay, and relocation.
Moving Washington → South Dakota?
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.