2027 New Mexico Tax Deadlines

Last updated: August 5, 2026

Key New Mexico tax dates at a glance

• April 15, 2027: First Individual estimated payment.
• June 15, 2027: Second Individual estimated payment.
• September 15, 2027: Third Individual estimated payment.
• January 18, 2028: Fourth Individual estimated payment.
• March 15, 2028: Calendar-year S Corporation and Partnership federal-aligned pass-through returns and payments.
• April 18, 2028: Calendar-year Corporate Income and Franchise Tax return and payment.
• April 18, 2028: Calendar-year Individual income tax return and payment.
• September 15, 2028: Extended S Corporation and Partnership returns, file only.
• October 16, 2028: Extended C Corporation and Individual returns, file only.

When are New Mexico taxes due in 2027?

New Mexico 2027 calendar-year pass-through returns are generally due March 15, 2028, Corporate Income and Franchise Tax returns are due April 18, 2028, and Individual returns are due April 18, 2028. Estimated payments and extensions should be managed separately from gross receipts tax filings.

When is the New Mexico C Corporation return due?

New Mexico C Corporations should plan around April 18, 2028, for the calendar-year corporate-facing return, tax, or business-level filing noted in this page.

• CIT-1: New Mexico Corporate Income and Franchise Tax Return, including the $50 franchise tax when applicable.
• RPD-41096: Extension of time to file when a separate New Mexico extension is needed.

What are New Mexico C Corporation extension rules?

The extended filing deadline for the main calendar-year New Mexico corporate-facing return is October 16, 2028. The extension is to file only, and tax or required payments remain due by April 18, 2028.

When are New Mexico S Corporation and Partnership returns due?

New Mexico S Corporations should plan around March 15, 2028, and Partnerships should plan around March 15, 2028.

Which New Mexico pass-through forms are required?

Use the applicable New Mexico pass-through return and related payment or owner-reporting forms for the entity type and election facts.

• PTE: New Mexico Income and Information Return for Pass-Through Entities.

What are New Mexico pass-through extension rules?

The extended filing deadline for calendar-year New Mexico S Corporation and Partnership returns is September 15, 2028. The extension is to file only, so tax, withholding, composite, or entity-level payments should be handled by the original deadline.

When is the New Mexico Individual income tax return due?

Calendar-year New Mexico Individual income tax returns and payments are due April 18, 2028.

• PIT-1: New Mexico Personal Income Tax Return.
• PIT-ES: New Mexico estimated payment voucher.
• RPD-41096: Extension of time to file when a separate New Mexico extension is needed.

What New Mexico Individual rate and residency issues should be checked?

Tax year 2027 Individual instructions should be checked for final rate tables, standard deductions or exemptions, residency rules, retirement-income treatment, credits, estimated-payment thresholds, and any filing-year changes specific to New Mexico.

When are New Mexico estimated payments due?

New Mexico estimated-payment work should be separated from gross receipts tax filings and pass-through withholding review.

• April 15, 2027: First estimated payment.
• June 15, 2027: Second estimated payment.
• September 15, 2027: Third estimated payment.
• January 18, 2028: Fourth estimated payment.

Who must make New Mexico estimated payments?

Taxpayers should use the final 2027 New Mexico instructions to confirm estimated-payment thresholds, safe-harbor rules, credits, withholding, pass-through owner treatment, and electronic-payment requirements.

What are New Mexico extension deadlines?

New Mexico extension deadlines are September 15, 2028, for pass-through filings, October 16, 2028, for corporate-facing filings, and October 16, 2028, for Individual returns. Extensions add filing time only; payment deadlines remain tied to the original return due dates.

What New Mexico-specific rules should tax professionals watch for 2027?

Beyond the core return deadlines, New Mexico tax professionals should track state-specific rate, credit, local-tax, industry, and filing-method rules before the 2027 season locks.

• New Mexico uses graduated Individual income tax rates from 1.5% to 5.9%; 2027 bracket thresholds should be checked against final Taxation and Revenue Department guidance.
• The Low-Income Comprehensive Tax Rebate can create refunds for qualifying low- and moderate-income Individuals and families, even when no tax is due.
• Gross receipts tax is a major New Mexico compliance item and uses separate state and local schedules from income tax.
• Pass-through entities may have withholding obligations for nonresident owners unless an entity-level tax election or other rule applies.
• Oil and gas, natural resources, severance-tax, working-interest depletion, and enhanced-recovery items can affect entity and owner planning.
• Film production credits, high-wage jobs credits, research credits, rural or economic-development incentives, renewable-energy credits, and renewable-energy equipment exemptions should be reviewed before year-end.
• Social Security and retirement-income treatment should be checked against the final 2027 Personal Income Tax instructions.
• Electronic filing and payment through TAP should be used where required or operationally preferred.

Instead AI helps tax teams treat New Mexico due dates as operational work, not a static checklist.

Tax-professional context: Several considerations make New Mexico's tax landscape distinct for 2027. New Mexico applies graduated Individual income tax rates (1.5% to 5.9%), levies gross receipts tax in place of a traditional sales tax, and offers a broad range of credits and incentives. Electronic filing continues to expand, including the Low-Income Comprehensive Tax Rebate.

Electronic filing requirements:

• C Corporations and pass-through entities should file through New Mexico TAP (tap.state.nm.us).
• Individuals can use New Mexico's online system for free e-filing.
• Preparers must use approved software vendors.

Working Families Tax Credit (state EITC):

• Based on the federal EITC; refundable; supplements federal benefits for qualifying families.

Native American and tribal considerations:

• Tribal tax exemptions and sovereignty issues; Indian gaming provisions and federal Indian employment credits; state and tribal coordination.

Retirement income considerations:

• Military retirement pay may be exempt; Social Security generally exempt; confirm pension/senior treatment against final 2027 PIT instructions.

Additional business incentives:

• High-Wage Jobs, Rural Jobs, Technology Jobs, Investment, and research and development credits, review before year-end.

New Mexico's graduated rates and $50 franchise tax reward specialist review from the accounting firm directory.

What sources support these New Mexico dates?

• New Mexico Corporate Income and Franchise Tax filing requirements.
• New Mexico pass-through entity requirements.
• New Mexico personal income tax overview.

Keep New Mexico GRT and income tax work aligned

Instead's AI-driven tax platform helps New Mexico teams coordinate return work, payment review, extensions, and filing follow-through before deadlines move from planning to execution.

For New Mexico practices, planning, workflows, and tax preparers help connect research, planning, and operational handoffs without duplicating deadline data. Built for tax professionals who want source-backed state deadline control across clients, entities, and reviewer workflows.