How to Invoice as a HVAC Technician in Mobile, AL

Invoicing guide for hvac technicians in Mobile: 4% AL sales tax, 1.5%/mo late-fee cap, plus AL licensing and contractor rules.

Combined sales tax
4%
Late fee cap
1.5%/mo
Net terms
7 days
Deposit
25%
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1. Mobile-specific tax handling

  • State sales tax: 4%. Local jurisdictions in Mobile may add their own rate — verify with your local tax assessor.
  • Late fees: AL statute Ala. Code §8-8-1 caps interest on unpaid invoices at 1.5% per month.

2. Standard hvac technician line items

  • 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. Payment terms that work in Mobile

Net 7 is standard for hvac technicians. Most hvac technicians in competitive markets like Mobile require a 25% deposit upfront before scheduling work. Accept card and ACH on the invoice itself — Mobile customers expect a one-click payment link in their inbox.

4. Licensing & disclosures

EPA Section 608 certification required for refrigerant work. State HVAC licenses common.

Metro
Mobile
State
AL
Net terms
7 days
Deposit
25%

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