Statutory Compliance • Ontario Construction Act s. 6.1

Ontario 'Proper Invoice' Checklist & Generator (Construction Act s. 6.1)

Under Ontario's Construction Act (Part I.1 Prompt Payment), the 28-day mandatory payment clock does not start until the owner receives a 'Proper Invoice' containing all 7 statutory elements required by Section 6.1.

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Step-by-Step Execution

Action Checklist

1. Include All 7 Mandatory Section 6.1 Elements

A Proper Invoice must state: (1) Contractor's name & address, (2) Date & period of supply, (3) Contract/PO authority, (4) Description of services/materials supplied, (5) Amount payable & payment terms, (6) Name, title, and contact of person to whom payment is to be sent, and (7) Any other contract-specified info.

2. Quote Your CRA Business Number (BN) & 13% HST Breakdown

Canadian GST/HST rules require your 9-digit CRA Business Number (e.g., 123456789 RT0001) and a separate line for 13% Ontario HST.

3. Load the 1-Click Ontario Proper Invoice Preset Below

Open the Quickest Studio pre-configured with `CA_ON` to generate a compliant Proper Invoice PDF in seconds.

Verified Specification

Key Rules & Benchmarks

Governing Legislation	Ontario Construction Act, R.S.O. 1990, c. C.30, s. 6.1
Owner Payment Deadline	28 calendar days from receipt of a Proper Invoice
Notice of Non-Payment Window	14 calendar days (Form 1.1)
Statutory Tax & ID	13% Ontario HST + 9-digit CRA Business Number (RT0001)

Mandatory Ontario Construction Act Section 6.1 Endorsement

PROPER INVOICE — Issued pursuant to Part I.1 (Prompt Payment, Section 6.1) of the Construction Act, R.S.O. 1990, c. C.30 (Ontario). Payment is due within 28 calendar days unless a formal Notice of Non-Payment (Form 1.1) is delivered within 14 days.

1-Click Statutory Studio Preset

Generate a Compliant Ontario Construction Act s. 6.1 Vector PDF Below

Upload any existing PDF/screenshot invoice or CSV export to auto-populate your business profile, client book, and line items—or jump straight into the pre-configured statutory studio and calculator.

Upload Existing PDF / Image Import Clients / Invoices CSV Canada GST & 13% Ontario HST Calculator → 24/7 AI Quote Link →

Pre-Configured Live Vector PDF Studio (CA_ON)

Customize & Download Your Compliant PDF Right Now (Zero Signup Wall)

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Set Up Your Business Brand, AI Logo & Starter Price Book in 60 Seconds

Auto-brand every invoice with your custom AI logo, trade rate card, and 24/7 AI quote link. Skip & resume anytime.

Preset Scopes:

Description Qty Unit Rate (CAD) Disc % Tax Total Actions

CAD 450.00

CAD 540.00

CAD 220.00

Subtotal CAD 1,210.00

HST (13%) CAD 157.30

Total Due CAD 1,367.30

Frequently Asked Questions: Ontario Construction Act s. 6.1

Why is calling it a 'Proper Invoice' under Section 6.1 so important in Ontario?

The mandatory 28-day prompt payment deadline and the right to fast-track ODACC adjudication under the Ontario Construction Act are triggered only when the invoice meets the statutory definition of a 'Proper Invoice' under Section 6.1.

How long does an owner have to dispute an Ontario Proper Invoice?

An owner who disputes all or part of a Proper Invoice must give the contractor a formal Notice of Non-Payment (Form 1.1) within 14 calendar days of receiving the Proper Invoice.