Consultants in New Mexico: taxes and retirement for 2026
For independent consultants and fractional executives billing clients directly in New Mexico. New Mexico has a graduated state income tax for 2026: 1.5% to 5.9% (top rate starts at $210,000 for single filers). Here are the 2026 rules, a worked example and the official sources.
New Mexico rules for consultants
- State income tax (2026)
- New Mexico has a graduated state income tax for 2026: 1.5% to 5.9% (top rate starts at $210,000 for single filers). Single brackets: 1.5% to $5,500; 3.2% to $16,500; 4.3% to $33,500; 4.7% to $66,500; 4.9% to $210,000; 5.9% above $210,000. This six-bracket table has applied since January 1, 2025. The Taxation and Revenue Department's January 27, 2026 bill analysis lists it as the current table. We found no 2026 rate change.
- State estimated tax
- Anyone who must file a New Mexico return has to pay estimated tax. TRD computes an underpayment penalty when the tax on the return exceeds estimated payments plus withholding by more than $1,000. The required annual payment is the lesser of 90% of current-year tax or 100% of prior-year tax. Same dates as federal (April 15, June 15, September 15, January 15). Form PIT-ES.
- New Mexico gross receipts tax (GRT)
- GRT applies to receipts from selling property and performing services in New Mexico, including a freelancer's or independent contractor's fees, with no deduction for business expenses. The state portion has been 4.875% since July 1, 2023, plus county and city rates. The combined rate depends on location and is usually passed on to customers.
- Independent contractor pay is subject to GRT (TRD classification rule)
- TRD treats pay received by independent contractors as subject to gross receipts tax unless an exemption or deduction applies, while employee wages are exempt. TRD accepts the IRS determination of whether a worker is an employee or an independent contractor.
- State retirement program
- New Mexico Work and $ave has been enacted. It is built around W-2 employers and does not cover 1099 contractors through the employer mandate; self-employed residents can enroll on their own.
Federal rules for 2026
Solo 401(k) up to $72,000
A one-person consultancy can contribute a $24,500 employee deferral plus an employer share of about 20% of net self-employment earnings, up to $72,000 in 2026, plus an $8,000 catch-up at 50 or older ($11,250 at ages 60 to 63).
The S-corp trade-off
Electing S-corp status can cut payroll tax, but the salary you pay yourself also sets your Solo 401(k) room. Run both sides before you elect.
Quarterly estimated taxes
No one withholds tax from self-employment income, so you generally pay estimates four times a year if you expect to owe $1,000 or more. For 2026 income the federal dates are April 15, June 15 and September 15, 2026, and January 15, 2027. Paying 100% of last year's tax (110% if your AGI was over $150,000) in four equal installments avoids the underpayment penalty.
Self-employment tax
On top of income tax, self-employed people pay 15.3% on 92.35% of net profit: 12.4% Social Security up to the 2026 wage base of $184,500, plus 2.9% Medicare with no cap. Half of it is deductible.
A worked example
| Self-employment tax (sole proprietor) | $21,194 |
|---|---|
| Solo 401(k) maximum | $52,381 |
| SEP IRA maximum | $27,881 |
| Payroll tax saved as an S-corp on a $75,000 salary | $9,719 |
| Solo 401(k) maximum as that S-corp | $43,250 |
Federal figures only, before state and local taxes. Simplified: excludes the QBI deduction and the 0.9% Additional Medicare Tax. Computed from 2026 IRS limits (Notice 2025-67, Rev. Proc. 2025-32) and the SSA wage base.
Free tools
Guides by job and platform
Questions
Do consultants in New Mexico pay state income tax?
New Mexico has a graduated state income tax for 2026: 1.5% to 5.9% (top rate starts at $210,000 for single filers). Single brackets: 1.5% to $5,500; 3.2% to $16,500; 4.3% to $33,500; 4.7% to $66,500; 4.9% to $210,000; 5.9% above $210,000. This six-bracket table has applied since January 1, 2025. The Taxation and Revenue Department's January 27, 2026 bill analysis lists it as the current table. We found no 2026 rate change.
When are New Mexico estimated tax payments due for 2026?
Anyone who must file a New Mexico return has to pay estimated tax. TRD computes an underpayment penalty when the tax on the return exceeds estimated payments plus withholding by more than $1,000. The required annual payment is the lesser of 90% of current-year tax or 100% of prior-year tax. Same dates as federal (April 15, June 15, September 15, January 15). The state form is PIT-ES.
Are there other New Mexico taxes for self-employed consultants?
New Mexico gross receipts tax (GRT): GRT applies to receipts from selling property and performing services in New Mexico, including a freelancer's or independent contractor's fees, with no deduction for business expenses. The state portion has been 4.875% since July 1, 2023, plus county and city rates. The combined rate depends on location and is usually passed on to customers.
Track it in one place
Gigaverse estimates your quarterly taxes from what you actually earn, logs business trips, categorizes expenses from your bank and answers money questions with your own numbers. Retirement accounts are coming soon.
Free · Takes 10 seconds · First 1,000 in line get launch perks
On Android? Get the app on Google PlayMore in New Mexico
Sources
- www.nmlegis.gov/Sessions/26%20Regular/AgencyAnalysis/HB0093_333.pdf
- www.tax.newmexico.gov/individuals/estimated-payments/
- www.dws.nm.gov/Minimum-Wage-Information
- www.tax.newmexico.gov/wp-content/uploads/2023/08/July-2023_GRT-Filers-Kit.pdf
- www.tax.newmexico.gov/individuals/personal-income-tax-information-overview/independent-contractors-vs-employees
State and local facts researched from official sources and independently re-checked; last verified October 2026, next scheduled review 2027-01-02. Educational information for 2026, not tax, legal or investment advice. Rules change; check the official sources listed and a tax professional for your situation. Gigaverse AI, Inc. is a financial technology company, not a bank, and not itself a registered investment adviser or broker-dealer.