Sole Proprietorship Tax Deadlines in New Mexico
Federal and state filing dates, extensions, and estimate schedules for 2026.
New Mexico filing deadline
Conforms to the federal calendar-year due date unless the state announces relief.
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: State income tax return
Estimated payments
Estimated payment dates: Apr 15, 2026, Jun 15, 2026, Sep 15, 2026, Jan 15, 2027.
Due: Apr 15, 2026
FAQ
Does New Mexico require Sole Proprietorship estimated payments?
Estimated payments are scheduled for Apr 15, 2026, Jun 15, 2026, Sep 15, 2026, Jan 15, 2027.
Where can I file New Mexico Sole Proprietorship taxes?
Use New Mexico Taxation and Revenue Department resources at https://www.tax.newmexico.gov for forms and filing instructions.