New Mexico estimated tax (quarterly) calculator
Plan quarterly payments based on New Mexico tax rules.
How this calculator works
Step 1 estimates your New Mexico tax based on the taxable income you provide and the New Mexico 1.5% to 5.9% brackets. The tool adjusts for New Mexico-only income using your allocation %.
Step 2 uses your withholding and prior-year tax (if provided) to estimate a quarterly plan that aligns with New Mexico’s 90% current-year or 100% prior-year safe-harbor rules.
Step 3 divides the remaining tax into four equal payments and lists the standard due dates used by New Mexico.
Frequently asked questions
When are New Mexico estimated payments due?
New Mexico uses the standard quarterly dates: April 15, June 15, September 15, and January 15 of the following year.
What if withholding changes later?
Recalculate with updated withholding to keep your quarterly plan accurate.
Is the safe harbor the same as federal?
New Mexico generally follows a 90% current-year or 100% prior-year safe harbor. Special rules apply if at least two-thirds of your income is from farming or ranching.
Estimates use New Mexico’s published brackets (1.5% to 5.9%) and are not a substitute for official payment calculations.