What New Mexico residents actually pay
New Mexico taxes ordinary income at a top marginal rate of 5.9%. RSU settlement value, NSO exercise spread, and ESPP discount income all count as ordinary wages for this purpose and flow through the state's normal brackets.
Up to 40% of net capital gains deducted from state tax.
Establishing the break
Leaving New Mexico cleanly for tax purposes means proving you changed domicile, not just changed address. Domicile audits look at: where you vote, where you hold your driver's license, where your doctors and dentist are, where your family lives, where you spend holidays, whether you sold (or stopped using) your New Mexico residence.
Trailing-grant rules
Even after a clean break, most high-tax states claim a workday-sourced share of equity that vested after you moved but was earned while you were a resident. Plan the move timing around known vesting and exercise events; moving in January before a year of vesting is cleaner than moving in June mid-vest.
Records to keep
Three years of records, minimum. Calendar (for day-count defense), payroll history (showing work location each pay period), real estate transactions, travel receipts, medical and professional records. If audited, the burden is on you to prove the new residency.
Frequently asked
- Does New Mexico tax RSU income the same as wages?
- Yes. New Mexico treats RSU ordinary income as wages, taxable at the state's top marginal rate of 5.9%. Supplemental-wage federal withholding (22%, or 37% above $1M YTD) does not adjust for state withholding, so you often owe extra at filing.
- What happens if I exercise ISOs while living in New Mexico?
- New Mexico does not run a separate state AMT, so only federal AMT applies. You still need to model the bargain element carefully if you plan a cashless exercise-and-sell.
- I moved to New Mexico from another state. Who taxes my vesting RSUs?
- Most high-tax states (CA, NY, MA) source RSU ordinary income to workdays between grant and vest. If your grant pre-dates your New Mexico move, expect the old state to tax the portion of each tranche attributable to workdays earned there. New Mexico taxes the remainder.
- Can I reduce New Mexico taxes by timing my RSU sales?
- New Mexico gives preferential treatment to long-term capital gains. Holding RSU shares 12+ months past vest can produce both federal and state savings. Weigh concentration risk before using this as a reason to hold.
Related
- RSU taxes — New Mexico
- ISO exercises and AMT — New Mexico
- Capital gains tax — New Mexico
- QSBS — New Mexico
- Moving to or from New Mexico with unvested equity: trailing nexus rules — New Mexico
- RSU vesting schedules — New Mexico
- ESPP taxation — New Mexico
- NSO exercises and state tax — New Mexico
- 401(k) and retirement accounts — New Mexico
- New Mexico equity-comp overview