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.
Mobile App Developer invoice fields
- Sprint / milestone — flat
- Hourly — hour, default $165
- App Store submission — flat
- Maintenance retainer — flat
State
OK
Avg invoice
$8,500
Net terms
30 days
Deposit
33%