Live in New Mexico, work in Colorado
State income tax on wages · single filer · tax year 2026
Colorado takes
$1,932
on wages earned there
New Mexico takes
$0
after the credit it gives
Both together
$1,932
state tax for the year
Cost of the line
$277
a year, above working at home
What crossing the line costs
costs youColorado charges more than New Mexico would, and New Mexico only credits you up to its own bill — so the difference stays with you. Solid is what you actually pay; the faded part of the New Mexico bar is the credit it hands back. State income tax only — federal and payroll tax apply on top, and a city wage tax may too.
Which state taxes you, and what it costs
- Crossing this line costs money. Colorado taxes what you earn there. New Mexico taxes you too, because you live there, and then gives you credit for what Colorado already took. The catch is the size of that credit. It stops at what New Mexico would have charged on its own. So you end up paying the bigger of the two bills, which here means $1,932 a year instead of $1,654. The commute itself accounts for $277 of that.
- Of all the states feeding workers into Colorado, New Mexico sends the most: 6,545 jobs. That makes this the largest crossing of its kind into the state, out of 2 of them.
- Colorado taxes wages earned inside its borders by non-residents, and New Mexico taxes its residents on the same wages wherever they are earned. The resident credit resolves the overlap but does not erase it: New Mexico credits tax paid to Colorado only up to what it would itself have charged on that income, so the commuter settles at the higher of the two liabilities rather than the sum. At the reference salary that is $1,932 against $1,654 for the same earner working at home — $277 attributable to the state line itself. ⚠️ The corollary is the part most readers have backwards: moving to a cheaper home state while keeping the job in Colorado changes the split between the two treasuries and not the total.
- Measured against every other state sending commuters into Colorado, this is the largest single flow: 6,545 jobs held by New Mexico residents, ahead of all 2 corridors of this size into that state. Census LODES counts jobs rather than people, so a worker holding two positions in Colorado appears twice.
Where the money goes
A $75,000 salary
- Federal income tax$7,670
- Social Security and Medicare$5,738
- State income tax$2,359
- Yours$59,233
| Federal income tax10.23% | $7,670 |
|---|---|
| Social Security and Medicare7.65% | $5,738 |
| State income tax3.15% | $2,359 |
| Yours78.98% | $59,233 |
Which rung you are on
A $75,000 salary
| This rung starts at | $66,500 |
|---|---|
| Next rung starts at | $121,800 |
| Room before it | $46,800 |
Federal only, measured on gross pay — so the first rung is what the standard deduction covers.
The arithmetic, step by step
| Colorado takes, on wages earned there | $1,932 |
|---|---|
| New Mexico charges its residents | $1,654 |
| Less the credit New Mexico gives | $1,654 |
| Total state tax | $1,932 |
| If you also worked in New Mexico | $1,654 |
| Difference | $277 |
On a reference salary of $60,000 a year, single filer. Both states run progressive schedules, so the figures do not simply scale — use the tool above for your own salary.
What this page does not cover
- City wage taxes are not in these numbers. A few places charge them, and where they do the money is real. If your job in Colorado is inside a city that taxes workers, add that on top. Where it is not, the state figures above are the whole of it for New Mexico residents.
- These numbers assume the job in Colorado is your only income, and that you actually go there to work. Both matter. If you earn money in more than one state, the credit New Mexico gives is worked out as a share rather than the simple cap used here. And if you work from home some days, some states have rules that treat those days as worked at the office anyway.
- The dollars rest on one assumed salary of sixty thousand. Double your pay and they do not simply double, because both states charge more on higher slices of income. What tends to stay put is which side of the New Mexico and Colorado comparison you are on.
- These figures cover the STATE layer only. City and municipal wage taxes sit on top of them and are not included: a commuter into Philadelphia pays its wage tax on top of anything here, and Ohio's municipalities run their own credit system, which this site models in its own families. New York City, by contrast, taxes only its residents, so a commuter into it adds nothing at the city level. Whether Colorado or New Mexico carries a local layer is a separate question from the state arithmetic above.
- The arithmetic assumes all wages are earned in Colorado and that there is no other income. That matters for the credit: where income comes from several states, New Mexico limits the credit to the share of its own tax attributable to the Colorado portion, computed as a ratio rather than the straightforward cap used above. It also assumes days are worked in Colorado rather than remotely — several states tax a non-resident's remote days as though they were worked at the employer's location, which reverses the usual expectation and is handled on this site's reciprocity pages.
- Dollar amounts are computed at a stated reference salary of sixty thousand rather than a corridor wage average, which no published source provides per state pair. Because both states' liabilities and the credit between them are functions of the same income, the direction of the New Mexico to Colorado comparison holds at other salaries even though the amounts do not — with one qualification worth stating, that a progressive schedule can change the SIZE of the gap at higher incomes, and in Colorado's case a bracket crossed on one side and not the other is exactly where that happens.
Questions people ask
Do I pay state tax twice, to New Mexico and Colorado?
You file in both states, but you do not pay the full amount to both. New Mexico credits the tax Colorado collected, capped at its own charge on that income. The practical result is one bill at the higher of the two levels: $1,932 for the year.
Would moving out of New Mexico lower my state tax if I keep working in Colorado?
Moving rarely helps while the job stays in Colorado. The work state takes its share first and does not care where you live. A cheaper home state simply means it has less of its own tax to credit, and you still pay Colorado the same. The saving people imagine here mostly is not there.
Do I have to file tax returns in both New Mexico and Colorado?
Expect two. Living in New Mexico means filing there on everything you earn. Working in Colorado usually means filing there as well, on the part you earned inside it. The second one is often how the credit gets claimed, so skipping it can cost you money you are owed.
What if I work from home in New Mexico some days instead of going to Colorado?
Normally, days worked at home in New Mexico belong to New Mexico, and only the days you spend in Colorado are taxed there. That is the ordinary rule. The exception is real though: some states count your remote days as worked at the employer's location anyway. That flips the answer completely, so check Colorado's rule rather than assuming.
How is liability allocated between residence and work state on the same wages?
Both jurisdictions assert a claim on the same wages — Colorado on a source basis, New Mexico on residence. The residence state grants a credit for tax paid to the source state, limited to the residence state's own liability on that income. Net combined liability therefore equals the greater of the two liabilities rather than their sum, $1,932 at the reference salary, and the split between the two treasuries is the only thing the credit changes.
Does changing residence reduce combined liability while the work state is unchanged?
No, while the source state is unchanged. Colorado's claim arises from where the services are performed and is unaffected by residence. Because the residence credit is capped at the residence state's own liability, combined liability equals the greater of the two — so substituting a lower-tax residence reduces the residence-state component toward zero while leaving the total at Colorado's level. The binding variable is the work location, not the home one.
What filing obligations arise in each state on this corridor?
Generally two. New Mexico requires a resident return reporting all income; Colorado requires a non-resident return reporting the income sourced to it, which is also the mechanism by which the resident credit is substantiated. ⚠️ A filing obligation is distinct from a liability: a reciprocity exemption or a zero net position removes tax without necessarily removing the return, and the non-resident return is frequently what establishes the credit claimed on the resident one.
How do remote working days affect sourcing between these two states?
Ordinarily wages are sourced to where the services are performed, so days worked remotely from New Mexico fall outside Colorado's jurisdiction and the source-state apportionment shrinks accordingly. ⛔ The exception is the "convenience of the employer" rule, which several states apply: a non-resident's remote days are sourced to the employer's location unless the remote work is required by the employer rather than chosen by the employee. The figures on this page model in-person attendance in Colorado throughout.