Compare taxes and see how much you save moving from Utah to Idaho
Utah has a flat 4.65% income tax, while Idaho charges a flat 5.8% rate. Living in Utah saves $1,150/year on $100k income compared to Idaho. Property taxes are nearly identical (UT 0.56% vs ID 0.63%), and sales taxes are similar (UT 7.19% vs ID 6.03%). Overall, Utah offers slight tax advantages, plus a larger job market (Salt Lake metro 2.8M vs Boise 765K) and stronger economy. Both states see explosive growth from California refugees.
Flat Rate
Flat 4.65% on all income
Flat Rate
Flat 5.8% on all income
At $100,000 income:
That is $96/month back in your pocket!
| Income | UT Tax | ID Tax | Savings | 10-Year |
|---|---|---|---|---|
| $50,000 | $2,325 | $2,900 | $575 | $5,750 |
| $100,000 | $4,650 | $5,800 | $1,150 | $11,500 |
| $200,000 | $9,300 | $11,600 | $2,300 | $23,000 |
| $500,000 | $23,250 | $29,000 | $5,750 | $57,500 |
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Moving between Utah and Idaho? Multi-state returns are tricky—different flat tax rates, partial-year residency. Get matched with a CPA who specializes in Mountain West state moves.
⚠ Not for simple single-state returns. Free filing is fine for straightforward W-2 situations.
Get Matched With a CPA →On $100,000 income, Utah saves $1,150/year in income tax (UT 4.65% vs ID 5.8%). UT also has lower property tax (0.56% vs ID 0.63%). On a $500k home, UT pays $2,800/year vs ID $3,150/year—difference of $350/year. However, ID has lower sales tax (6.03% vs UT 7.19%). Net savings: $1,384/year in Utah. Over 10 years: $13,840.
Salt Lake wins for career: Silicon Slopes (Adobe, Qualtrics, Domo), larger job market (2.8M vs 765K), more networking, higher salaries. Utah also has lower taxes ($1,384/year savings at $100k). Boise wins for: cheaper housing (15% cheaper), better air quality (no inversions), more relaxed culture, less crowded. Both see explosive California refugee influx. Choose SLC for career max. Choose Boise for affordability.
Yes, but more ID → UT migration surprisingly. In 2023, 4,872 people moved ID → UT and 3,847 moved UT → ID (net: UT gained 1,025). Migration drivers ID → UT: better jobs (Silicon Slopes), lower taxes ($1,384/year), world-class skiing. Migration drivers UT → ID: cheaper housing (Boise 15% cheaper), better air quality, escaping Mormon culture. Both states primarily gain residents from California.
Utah wins for families: better schools (UT #10 vs ID #24), larger job market, lower taxes ($1,384/year savings), world-class skiing. However, Utah has higher cost of living (15% more expensive) and air quality issues (winter inversions). Idaho wins for: cheaper housing, better air quality, more relaxed culture. Choose UT for career/schools. Choose ID for affordability.