Civil / Mechanical / Electrical Engineer (PE) Invoice Template for Connecticut

Free civil / mechanical / electrical engineer (pe) invoice template for Connecticut: CT sales tax 6.35% (applies to services), late fees capped at 1.5%/mo under Conn. Gen. Stat. §37-3a, written contracts required over $200. Edit, send by email, or download as PDF.

State sales tax
6.35%
Late fee cap
1.5%/mo
Pre-filled lines
4
Cost
Free
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Connecticut compliance baked into the template

  • Sales tax: 6.35% state rate. Applies to services rendered. Many services taxable (e.g., computer/data, repair, advertising). Combined uniform 6.35%.
  • Late fees: Up to 1.5% per month under Conn. Gen. Stat. §37-3a. Statutory rate 10%/yr; contract rates allowed up to 12%/yr without special license.
  • Written contract: Required for jobs over $200. 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
CT
Avg invoice
$6,500
Net terms
30 days
Deposit
25%

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