1. Billings-specific tax handling
- State sales tax: 0%. Local jurisdictions in Billings may add their own rate — verify with your local tax assessor.
- Late fees: MT statute Mont. Code §31-1-106 caps interest on unpaid invoices at 1.5% per month.
2. Standard civil / mechanical / electrical engineer (pe) line items
- Project fee — billed by flat.
- Hourly engineering — billed by hour (~$175 default).
- PE stamp & sealing — billed by flat.
- Site visit — billed by flat.
3. Payment terms that work in Billings
Net 30 is standard for civil / mechanical / electrical engineer (pe)s. Most civil / mechanical / electrical engineer (pe)s in competitive markets like Billings require a 25% deposit upfront before scheduling work. Accept card and ACH on the invoice itself — Billings customers expect a one-click payment link in their inbox.
4. Licensing & disclosures
PE license required to stamp drawings or sign engineering opinions. Discipline-specific rules apply.
Metro
Billings
State
MT
Net terms
30 days
Deposit
25%