How to Invoice as a Insulation Contractor in Detroit, MI

Invoicing guide for insulation contractors in Detroit: 6% MI sales tax, 0.58%/mo late-fee cap, plus MI licensing and contractor rules.

Combined sales tax
6%
Late fee cap
0.58%/mo
Net terms
14 days
Deposit
30%
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1. Detroit-specific tax handling

  • State sales tax: 6%. Local jurisdictions in Detroit may add their own rate — verify with your local tax assessor.
  • Late fees: MI statute Mich. Comp. Laws §438.31 caps interest on unpaid invoices at 1.5% per month.

2. Standard insulation contractor line items

  • Material — per sqft — billed by sqft.
  • Labor — billed by hour (~$70 default).
  • Removal of old insulation — billed by flat.

3. Payment terms that work in Detroit

Net 14 is standard for insulation contractors. Most insulation contractors in competitive markets like Detroit require a 30% deposit upfront before scheduling work. Accept card and ACH on the invoice itself — Detroit customers expect a one-click payment link in their inbox.

4. Licensing & disclosures

EPA certifications required for older homes. State licensing varies.

Metro
Detroit
State
MI
Net terms
14 days
Deposit
30%

Nearby metros

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