How to Invoice as a Cybersecurity Consultant in Billings, MT

Invoicing guide for cybersecurity consultants in Billings: 0% MT sales tax, 1.5%/mo late-fee cap, plus MT licensing and contractor rules.

Combined sales tax
0%
Late fee cap
1.5%/mo
Net terms
30 days
Deposit
33%

1. Billings-specific tax handling

  • State sales tax: 0%. Local jurisdictions in Billings may add their own rate β€” verify with your local tax assessor.
  • Late fees: MT statute Mont. Code Β§31-1-106 caps interest on unpaid invoices at 1.5% per month.

2. Standard cybersecurity consultant line items

  • Penetration test β€” fixed scope β€” billed by flat.
  • Hourly assessment β€” billed by hour (~$245 default).
  • Retest β€” billed by flat.
  • Retainer / vCISO β€” billed by flat.

3. Payment terms that work in Billings

Net 30 is standard for cybersecurity consultants. Most cybersecurity consultants in competitive markets like Billings require a 33% deposit upfront before scheduling work. Accept card and ACH on the invoice itself β€” Billings customers expect a one-click payment link in their inbox.

4. Licensing & disclosures

CISSP, OSCP, or equivalent expected. ROE (rules of engagement) and signed authorization required before any testing.

Metro
Billings
State
MT
Net terms
30 days
Deposit
33%

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