Oklahoma compliance baked into the template
- Sales tax: 4.50% state rate. Generally exempts most services. State 4.5%; combined commonly 8-10%.
- Late fees: Up to 1.5% per month under Okla. Stat. tit. 15, §266. Default 6%/yr; contract rates up to 10%/yr without supervised licensing.
HVAC Technician invoice fields
- Diagnostic fee — flat, default $89
- Labor — hour, default $115
- Refrigerant / parts — itemized
- Service agreement credit — discount
State
OK
Avg invoice
$540
Net terms
7 days
Deposit
25%