New Mexico Small Business Tax Guide — 2026
Income Tax Rate
1.7% — 5.9% (progressive)
Sales Tax Rate
4.875% state GRT + local (total typically 7% — 9%)
Filing Deadline
April 15 (matches federal deadline)
New Mexico Income Tax
New Mexico imposes a state income tax with rates of 1.7% — 5.9% (progressive). Self-employed individuals, freelancers, and sole proprietors pay this tax on their net business income in addition to federal income tax and federal self-employment tax (15.3%).
Self-Employment in New Mexico
New Mexico taxes self-employment income at progressive rates up to 5.9%. The state also imposes a Gross Receipts Tax (GRT) on most business transactions. No separate state SE tax.
Estimated Tax Requirements
Quarterly estimated payments required if you expect to owe $1,000 or more. Standard federal due dates apply.
New MexicoDeductions & Credits
- New Mexico conforms to many federal deductions
- Low-income tax rebate for qualifying filers
- Credit for taxes paid to other states
- Gross Receipts Tax is deductible on federal return as business expense
Business Filing Fees
LLC: $50 formation + $0 annual fee (no annual report). Corporation: $100 formation + annual report.
Key Facts About New Mexico Taxes
- New Mexico's Gross Receipts Tax (GRT) functions like a sales tax but is technically imposed on the business
- No annual LLC fee or report required — very low ongoing costs
- Social Security benefits are partially exempt from state tax
- The GRT applies to most services, not just goods
Track Your New Mexico Business Expenses
TaxTidy helps New Mexico freelancers and self-employed individuals track every business expense with AI-powered receipt scanning. Snap a photo of any receipt and TaxTidy instantly extracts the vendor, amount, and tax category — then maps it to the correct IRS Schedule C line. At tax time, generate an audit-ready PDF report with all your deductions organized and totaled.
Frequently Asked Questions
What is New Mexico's Gross Receipts Tax?
The GRT is New Mexico's equivalent of sales tax, ranging from 4.875% to about 9% with local additions. Unlike traditional sales tax, it's imposed on the business (not the buyer), though it's typically passed through to customers.
How much does a New Mexico LLC cost?
New Mexico LLCs cost $50 to form with no annual report or fee required — one of the cheapest in the nation for ongoing maintenance.
When are New Mexico estimated taxes due?
Quarterly on April 15, June 15, September 15, and January 15. Required if you expect to owe $1,000 or more.
Official source: New Mexico Department of Revenue
TaxTidy provides expense organization tools based on the most current US tax law available to it. TaxTidy is not a CPA, Enrolled Agent, or licensed tax professional. All categorizations, deductions, and tax calculations are estimates. Please verify all data for accuracy and consult a certified tax professional before filing.
Start Tracking Your New Mexico Business Expenses
Free to start — first 25 scans, lifetime. AI categorization, Schedule C mapping, and your personal Audit Readiness Score.
Get Started Free