Tax Law ✦ Gross Receipts Tax
It’s Not a Sales Tax. That’s Exactly the Problem.
Businesses moving to New Mexico assume the gross receipts tax works like the sales tax they left behind. It doesn’t. GRT reaches services, digital products, and transactions no other state would touch, and the burden of proving a deduction sits on you. North Star Law Firm keeps New Mexico businesses registered, compliant, and out of assessment trouble.
Overview
How is GRT different from a sales tax?
A sales tax is a tax on the buyer that the seller collects. New Mexico’s gross receipts tax under NMSA 1978, Chapter 7, Article 9 is legally a tax on you, the seller, for the privilege of doing business in the state, measured by your total receipts. You may pass it to customers, and most businesses do, but the liability is yours whether you charged it or not. The base is dramatically broader than a sales tax: professional services, construction, digital goods, software subscriptions, licensing, and most of what a modern business sells are taxable receipts unless a specific exemption or deduction says otherwise. The state rate is 4.875 percent, local increments push combined rates from about 5.25 percent to over 9 percent depending on where the goods or services are delivered, and since 2021 the rate is set by the customer’s location, not your office.
- Registration, location codes, and filing frequency set up correctly
- Deduction and exemption mapping for your actual revenue streams
- NTTC management so documentation exists before the audit
- Destination sourcing and multi-location rate compliance
- Remote seller and marketplace nexus analysis ($100,000 threshold)
- Audit defense and managed audits when TRD comes calling
The Traps
Where do New Mexico businesses get hurt?
| Trap | How it happens | The fix |
|---|---|---|
| Missing NTTCs | Selling for resale or to exempt buyers without collecting nontaxable transaction certificates | Collect and retain NTTCs at transaction time; reconstruct within the statutory window if audited |
| Services sourced wrong | Charging your office’s rate instead of the delivery location’s rate | Destination sourcing review; update systems to the July rate tables |
| “We’re a service business, we’re exempt” | Assuming services are outside the tax like most states | They are in the base here; specific deductions must be identified and documented |
| Construction chain errors | Sub and prime both paying, or neither, on the same receipts | Proper NTTC flow between primes and subs |
| Remote sellers ignoring NM | Out-of-state sellers past $100,000 in NM sales without registration | Nexus study, registration, and voluntary disclosure before contact |
When these surface, they surface in an audit letter. We wrote a field guide to that experience in our post on New Mexico gross receipts tax audits, including the 60-day NTTC rule and the 90-day protest deadline that decides most cases before the merits do.
Which deductions actually matter?
The GRT statutes contain dozens of deductions, but a handful do most of the work for real businesses: receipts from selling for resale with an NTTC, receipts from services performed in New Mexico but initially used out of state, sales to governments and 501(c)(3) organizations for qualifying uses, certain health care receipts including the practitioner deductions that keep medical practices viable here, and the manufacturing consumables chain. Two things about every one of them: they are deductions you must claim and document, not exclusions that apply automatically, and the documentation almost always has to exist at or near the time of the transaction. A deduction remembered at audit time with no paper behind it is, functionally, a penalty waiting to be assessed.
What should out-of-state and online sellers know?
New Mexico taxes remote sellers who exceeded $100,000 of in-state sales in the prior calendar year, and marketplace providers collect for marketplace sales. The state’s version has kinder edges than most, one threshold, no transaction count, but the base is meaner: remote sellers of services and digital products get caught here when they would owe nothing in a sales tax state. If you have crossed the threshold in a prior year and never registered, the smart sequence is a voluntary disclosure negotiated before the Taxation and Revenue Department finds you, which typically caps the lookback and abates penalties. After the letter arrives, those options shrink fast.
How does GRT fit into bigger planning?
GRT is a margin problem, so it belongs in pricing, contract, and structure decisions, not just the monthly filing. Contracts should say who bears the tax and survive a rate change. Invoices should state it separately, which matters for the income tax side too, since properly stated GRT is handled differently than absorbed GRT. Multi-entity structures need intercompany agreements that do not create taxable receipts by accident, a genuinely easy mistake when a management company bills an operating company. And a business sale changes everything for a moment: asset sales can trigger GRT on some components while inventory and other pieces are deductible, one of the issues covered on our business sale structuring page.
The Attorney-CPA Difference
The audit is won in the bookkeeping, years early.
- Revenue-stream mapping: every receipt matched to taxable, deductible, or exempt
- NTTC files built and maintained, not reconstructed under deadline
- Voluntary disclosures negotiated before TRD makes contact
- Protests and managed audits handled by someone who reads the ledgers natively
Questions & Answers
Gross receipts tax questions, answered
Do I have to charge GRT on services I perform for out-of-state clients?
Often no, but the deduction depends on where the product of your service is initially used and on documentation proving it. Professional firms serving national clients leave real money on the table in both directions: some charge tax they did not owe, others skip tax they did. A revenue-stream review answers it definitively.
I never charged my customers GRT. Do I still owe it?
Yes. The tax is imposed on the seller, so receipts are taxable whether or not you passed the tax along. The practical response is to fix pricing going forward and evaluate a voluntary disclosure for the back periods before an audit makes the terms worse.
What is an NTTC and when do I need one?
A nontaxable transaction certificate is the buyer’s certification that a sale qualifies for a specific deduction, resale being the most common. You need it in hand, or obtainable within the statute’s cure window if audited, for every sale you deducted. No certificate generally means no deduction, regardless of what the buyer actually did with the goods.
How far back can the state assess me?
Generally three years from the end of the year the tax was due, extending to six or seven for substantial underreporting or no return at all. Unregistered businesses have no statute running at all, which is the strongest argument for voluntary disclosure.
Are the rates really different in every town?
Yes. The state’s 4.875 percent is the floor, and municipalities and counties stack local increments on top, so Albuquerque, Rio Rancho, and an unincorporated county address can each carry different combined rates. Since July 2025 the rates change only once a year, in July, which at least makes system updates predictable.
New Mexico’s strangest tax rewards the prepared.
Whether you are setting up, scaling, selling remotely into the state, or staring at an audit notice, get the GRT answer from someone who handles both the law and the ledgers.