California compliance baked into the template
- Sales tax: 7.25% state rate. Generally exempts most services. Services generally exempt; tangible goods taxable. Local rates push combined to 10.75%.
- Late fees: Up to 1.5% per month under Cal. Civ. Code §3287; §1671 (penalty rule). Late fees must be reasonable and in written agreement; statutory interest 10%/yr otherwise.
- Written contract: Required for jobs over $500. The template includes a signature block and scope-of-work field.
Civil / Mechanical / Electrical Engineer (PE) invoice fields
- Project fee — flat
- Hourly engineering — hour, default $175
- PE stamp & sealing — flat
- Site visit — flat
State
CA
Avg invoice
$6,500
Net terms
30 days
Deposit
25%