How much of a $90K salary do you actually keep in Idaho? Here’s your complete tax breakdown for 2026.
Idaho charges a flat income tax with rates of 5.8% flat. On a $90K salary, you'll pay $3,915 in state tax on top of $11,260 federal and $6,885 FICA. Your total effective rate is 24.5%, ranking #29 out of 50 states.
With a cost of living index of 95, your $67,940 take-home has an adjusted purchasing power of $71,516. That's roughly in line with the national average.
| # | State | Tax Rate | Take-Home | Monthly | Eff. Rate | Cost-Adj. |
|---|---|---|---|---|---|---|
| 1 | Alaska | 0% | $71,855 | $5,988 | 20.2% | $56,579 |
| 2 | Florida | 0% | $71,855 | $5,988 | 20.2% | $71,855 |
| 3 | Nevada | 0% | $71,855 | $5,988 | 20.2% | $71,144 |
| 4 | New Hampshire | 0% | $71,855 | $5,988 | 20.2% | $66,532 |
| 5 | South Dakota | 0% | $71,855 | $5,988 | 20.2% | $78,103 |
| 6 | Tennessee | 0% | $71,855 | $5,988 | 20.2% | $79,839 |
| 7 | Texas | 0% | $71,855 | $5,988 | 20.2% | $77,263 |
| 8 | Washington | 0% | $71,855 | $5,988 | 20.2% | $65,323 |
| 9 | Wyoming | 0% | $71,855 | $5,988 | 20.2% | $76,441 |
| 10 | North Dakota | 1.95% | $70,539 | $5,878 | 21.6% | $76,673 |
| 11 | Arizona | 2.5% | $70,168 | $5,847 | 22.0% | $72,338 |
| 12 | Louisiana | 4.25% | $68,986 | $5,749 | 23.3% | $75,809 |
| 13 | Arkansas | 4.4% | $68,885 | $5,740 | 23.5% | $80,099 |
| 14 | Colorado | 4.4% | $68,885 | $5,740 | 23.5% | $65,605 |
| 15 | North Carolina | 4.5% | $68,818 | $5,735 | 23.5% | $72,439 |
| 16 | Utah | 4.65% | $68,716 | $5,726 | 23.6% | $69,410 |
| 17 | Oklahoma | 4.75% | $68,649 | $5,721 | 23.7% | $78,907 |
| 18 | Illinois | 4.95% | $68,514 | $5,709 | 23.9% | $73,671 |
| 19 | Massachusetts | 5% | $68,480 | $5,707 | 23.9% | $58,034 |
| 20 | Mississippi | 5% | $68,480 | $5,707 | 23.9% | $82,506 |
| 21 | Indiana | 3.05% | $68,446 | $5,704 | 23.9% | $76,051 |
| 22 | Pennsylvania | 3.07% | $68,433 | $5,703 | 24.0% | $69,829 |
| 23 | West Virginia | 5.12% | $68,399 | $5,700 | 24.0% | $82,408 |
| 24 | Georgia | 5.49% | $68,149 | $5,679 | 24.3% | $73,279 |
| 25 | Ohio | 3.5% | $68,143 | $5,679 | 24.3% | $75,714 |
| 26 | Iowa | 5.7% | $68,008 | $5,667 | 24.4% | $76,413 |
| 27 | Kansas | 5.7% | $68,008 | $5,667 | 24.4% | $75,564 |
| 28 | Virginia | 5.75% | $67,974 | $5,664 | 24.5% | $65,994 |
| 29 | Idaho | 5.8% | $67,940 | $5,662 | 24.5% | $71,516 |
| 30 | Nebraska | 5.84% | $67,913 | $5,659 | 24.5% | $74,630 |
| 31 | Montana | 5.9% | $67,873 | $5,656 | 24.6% | $69,972 |
| 32 | New Mexico | 5.9% | $67,873 | $5,656 | 24.6% | $74,585 |
| 33 | Rhode Island | 5.99% | $67,812 | $5,651 | 24.7% | $64,583 |
| 34 | Kentucky | 4% | $67,805 | $5,650 | 24.7% | $75,339 |
| 35 | Michigan | 4.25% | $67,636 | $5,636 | 24.8% | $74,326 |
| 36 | South Carolina | 6.4% | $67,535 | $5,628 | 25.0% | $73,408 |
| 37 | Missouri | 4.8% | $67,265 | $5,605 | 25.3% | $75,579 |
| 38 | Connecticut | 6.99% | $67,137 | $5,595 | 25.4% | $60,484 |
| 39 | Alabama | 5% | $67,130 | $5,594 | 25.4% | $76,284 |
| 40 | Maine | 7.15% | $67,029 | $5,586 | 25.5% | $68,397 |
| 41 | Wisconsin | 7.65% | $66,691 | $5,558 | 25.9% | $71,711 |
| 42 | Maryland | 5.75% | $66,624 | $5,552 | 26.0% | $59,485 |
| 43 | Delaware | 6.6% | $66,050 | $5,504 | 26.6% | $64,755 |
| 44 | Vermont | 8.75% | $65,949 | $5,496 | 26.7% | $62,808 |
| 45 | Minnesota | 9.85% | $65,206 | $5,434 | 27.5% | $65,865 |
| 46 | New Jersey | 10.75% | $64,599 | $5,383 | 28.2% | $56,173 |
| 47 | Hawaii | 11% | $64,430 | $5,369 | 28.4% | $33,557 |
| 48 | Oregon | 9.9% | $63,823 | $5,319 | 29.1% | $58,020 |
| 49 | New York | 10.9% | $63,148 | $5,262 | 29.8% | $50,518 |
| 50 | California | 13.3% | $62,878 | $5,240 | 30.1% | $44,280 |