How to Invoice as a Civil / Mechanical / Electrical Engineer (PE) in Cincinnati, OH

Invoicing guide for civil / mechanical / electrical engineer (pe)s in Cincinnati: 5.75% OH sales tax, 0.67%/mo late-fee cap, plus OH licensing and contractor rules.

Combined sales tax
5.75%
Late fee cap
0.67%/mo
Net terms
30 days
Deposit
25%
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1. Cincinnati-specific tax handling

  • State sales tax: 5.75%. Local jurisdictions in Cincinnati may add their own rate — verify with your local tax assessor.
  • Late fees: OH statute Ohio Rev. Code §1343.01 caps interest on unpaid invoices at 1.5% per month.

2. Standard civil / mechanical / electrical engineer (pe) line items

  • Project fee — billed by flat.
  • Hourly engineering — billed by hour (~$175 default).
  • PE stamp & sealing — billed by flat.
  • Site visit — billed by flat.

3. Payment terms that work in Cincinnati

Net 30 is standard for civil / mechanical / electrical engineer (pe)s. Most civil / mechanical / electrical engineer (pe)s in competitive markets like Cincinnati require a 25% deposit upfront before scheduling work. Accept card and ACH on the invoice itself — Cincinnati customers expect a one-click payment link in their inbox.

4. Licensing & disclosures

PE license required to stamp drawings or sign engineering opinions. Discipline-specific rules apply.

Metro
Cincinnati
State
OH
Net terms
30 days
Deposit
25%

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