Montana vs New Mexico:
Take-Home Pay Comparison
Side-by-side tax comparison between Montana (5.65% top rate, graduated) and New Mexico (5.9% top rate, graduated). See which state lets you keep more at every salary level, and how cost of living changes the picture.
Tax Structure: Montana vs New Mexico
Montana uses a graduated income tax (4.7-5.65%) while New Mexico has a graduated system (1.5-5.9%). On a $100K salary, Montana takes $3,673 in state and local taxes compared to New Mexico’s $3,835 \u2014 a difference of $163.
Both states use graduated brackets, but New Mexico’s top rate of 5.9% is higher than Montana’s 5.65%.
Take-Home at Every Salary Level
Montana wins at 10 out of 10 salary levels tested. The advantage exists but is modest across the income spectrum.
| Salary | Montana | New Mexico | Difference | Winner |
|---|---|---|---|---|
| $40K | $32,851 | $32,786 | −$65 | Montana |
| $50K | $40,519 | $40,438 | −$81 | Montana |
| $60K | $48,187 | $48,089 | −$98 | Montana |
| $75K | $58,783 | $58,661 | −$122 | Montana |
| $100K | $75,453 | $75,290 | −$163 | Montana |
| $120K | $88,788 | $88,593 | −$195 | Montana |
| $150K | $108,242 | $107,999 | −$244 | Montana |
| $200K | $141,542 | $141,217 | −$325 | Montana |
| $250K | $174,083 | $173,677 | −$406 | Montana |
| $300K | $204,311 | $203,824 | −$488 | Montana |
Cost of Living: Montana (97) vs New Mexico (91)
Take-home pay only tells part of the story. Montana has a cost of living index of 97 while New Mexico is at 91 (national average = 100).
The cost of living gap is moderate. After adjustment, $100K has purchasing power of $77,786 in Montana vs $82,736 in New Mexico. However, New Mexico actually provides better purchasing power despite Montana’s take-home advantage.
Married Filing Jointly: How It Changes the Comparison
For a single earner at $100K filing jointly, take-home becomes $81,603 in Montana and $81,465 in New Mexico \u2014 a difference of $138. The gap narrows under married filing, as the wider brackets reduce the tax bite in both states.
Should You Move from New Mexico to Montana?
On paper, moving from New Mexico to Montana would save $163/year on a $100K salary, or $813 over 5 years. But relocation involves real costs: moving expenses, potentially buying/selling a home, changing jobs, and adjusting to a new community.
At $163/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.