1. New Mexico-specific invoice requirements
- Sales tax line: 4.88% state rate. Services billed to NM customers must include sales tax. GRT (gross receipts tax) 4.875% applies broadly including services.
- Late-fee cap: New Mexico statute N.M. Stat. §56-8-3 caps interest on unpaid invoices at 1.5% per month. Spell out the rate in writing on every invoice and in your contract — courts won't enforce undisclosed fees.
- Right-to-cancel notice: Customers in New Mexico get 72-hour cancellation rights on certain home-services contracts. Disclose this in your terms.
2. HVAC Technician line items + standard terms
Every hvac technician invoice in New Mexico should itemize work clearly. Standard hvac technicians use Net 7 terms with a 25% deposit required upfront.
- Diagnostic fee — billed by flat (~$89 default).
- Labor — billed by hour (~$115 default).
- Refrigerant / parts — billed by itemized.
- Service agreement credit — billed by discount.
3. HVAC Technician licensing in New Mexico
EPA Section 608 certification required for refrigerant work. State HVAC licenses common.
4. Send and follow up
Send the invoice the same day work completes. Use software that records open events and offers a one-click online payment so you don't need to chase a check by mail. New Mexico customers expect digital payment options today — accepting card and ACH typically reduces days-to-paid by 30–50%.
New Mexico metro guides
Metro-specific guides include the combined sales-tax rate and local pricing benchmarks.