Side-by-side tax comparison between California (13.3% top rate) and Idaho (5.8% top rate).
| Salary | California | Idaho | Difference | Winner |
|---|---|---|---|---|
| $50K | $37,310 | $40,123 | +$2,813 | Idaho |
| $75K | $53,821 | $58,040 | +$4,219 | Idaho |
| $100K | $68,915 | $74,540 | +$5,625 | Idaho |
| $150K | $98,484 | $106,921 | +$8,438 | Idaho |
| $200K | $129,153 | $140,403 | +$11,250 | Idaho |
Idaho offers higher take-home pay at every salary level. Idaho's 5.8% top rate is more favorable than California's 13.3%. At $100K, the difference is $5,625/year — that’s $469/month.
However, cost of living matters. California has a cost index of 142 while Idaho is at 95. After adjusting for cost of living, the gap widens significantly.