Proper Invoice Construction Ontario

For Ontario construction projects, a proper invoice is more than a PDF with an amount due. It is the document package that can start the prompt-payment clock when it meets the contract and Construction Act requirements.

Use this page with the Ontario proper invoice checklist, holdback calculator, and non-payment deadline page to keep invoice evidence in one place.

Open Ontario proper invoice checklist

Holdback calculator

Estimate the holdback and invoice clock.

Use this as a planning calculator only. Construction payment, lien, holdback, and notice rules depend on jurisdiction, contract terms, project type, and timing.

Contract or invoice amount Holdback percent Proper invoice date Owner payment period

Holdback$10,000.00

Net payable before holdback release$90,000.00

Estimated payment dueChoose invoice date

Ontario non-payment notice checkpointChoose invoice date