Side-by-side tax comparison between New Mexico (5.9% top rate, graduated) and Utah (4.45% top rate, flat). See which state lets you keep more at every salary level, and how cost of living changes the picture.
New Mexico uses a graduated income tax (1.5-5.9%) while Utah has a flat system (4.45% flat). On a $100K salary, New Mexico takes $3,835 in state and local taxes compared to Utah’s $4,450 \u2014 a difference of $615.
Because New Mexico has graduated brackets while Utah is flat, the gap between them changes at different income levels. New Mexico’s rates increase with income, so high earners feel the difference more acutely.
New Mexico wins at 10 out of 10 salary levels tested. The advantage exists but is modest across the income spectrum.
| Salary | New Mexico | Utah | Difference | Winner |
|---|---|---|---|---|
| $40K | $32,786 | $32,540 | −$246 | New Mexico |
| $50K | $40,438 | $40,130 | −$308 | New Mexico |
| $60K | $48,089 | $47,720 | −$369 | New Mexico |
| $75K | $58,661 | $58,200 | −$461 | New Mexico |
| $100K | $75,290 | $74,675 | −$615 | New Mexico |
| $120K | $88,593 | $87,855 | −$738 | New Mexico |
| $150K | $107,999 | $107,076 | −$923 | New Mexico |
| $200K | $141,217 | $139,987 | −$1,230 | New Mexico |
| $250K | $173,677 | $172,139 | −$1,538 | New Mexico |
| $300K | $203,824 | $201,979 | −$1,845 | New Mexico |
Take-home pay only tells part of the story. New Mexico has a cost of living index of 91 while Utah is at 99 (national average = 100).
The cost of living gap is moderate. After adjustment, $100K has purchasing power of $82,736 in New Mexico vs $75,429 in Utah. The take-home winner also wins on purchasing power.
For a single earner at $100K filing jointly, take-home becomes $80,875 in New Mexico and $80,260 in Utah \u2014 a difference of $615. The gap remains similar regardless of filing status.
On paper, moving from Utah to New Mexico would save $615/year on a $100K salary, or $3,075 over 5 years. But relocation involves real costs: moving expenses, potentially buying/selling a home, changing jobs, and adjusting to a new community.
At $615/year, the tax difference alone likely isn’t worth relocating for. Other factors — job market, lifestyle, family — should drive the decision. The tax savings are a nice bonus if you’re already considering the move for other reasons.