Proper Invoice Requirements in Nova Scotia
Under the Builders' Lien Act (prompt payment and adjudication amendments, SNS 2019, c. 12 and SNS 2022, c. 43), RSNS 1989, c. 277 (am. SNS 2019, c. 12 and SNS 2022, c. 43, not proclaimed)
A proper invoice is the single document that starts the Nova Scotia payment clock under the Builders' Lien Act (prompt payment and adjudication amendments, SNS 2019, c. 12 and SNS 2022, c. 43) (RSNS 1989, c. 277 (am. SNS 2019, c. 12 and SNS 2022, c. 43, not proclaimed)). Get it right and every downstream deadline is anchored and defensible; get it wrong and a payer can argue the clock never started.
Nova Scotia has no deemed-proper-invoice rule, so an invoice must contain every required element from the outset. There is no silence-equals-acceptance safety net.
Nova Scotia proper invoice deadlines
The statutory clocks for this topic in Nova Scotia, with section citations.
| Clock | Value | Statute |
|---|---|---|
Deemed-proper review window This province has no deemed-proper-invoice provision. | No statutory rule | Not applicable |
What a proper invoice must contain
Nova Scotia proper invoices identify the contractor and the payer, describe the work or materials supplied, state the amount payable and the period covered, give the contract or project reference, and set out the payment terms. Any additional content the contract requires must also be present.
No second chance: get it right the first time
Because Nova Scotia has no deeming rule, there is no review window that quietly converts a flawed invoice into a proper one. An invoice that is missing a required element simply does not start the 28-day clock, so completeness on day one is everything.
Why the receipt date anchors every NS clock
Every Nova Scotia prompt-payment deadline is measured from the date the proper invoice is received, not the date it is dated or sent. Recording and preserving that receipt date determines when the owner must pay and when every downstream clock expires.
A note on status
Nova Scotia's framework is enacted but not yet proclaimed, so these day-counts are working assumptions.
Proper invoice in Nova Scotia: FAQ
Does Nova Scotia deem an invoice proper if the payer stays silent?
No. Nova Scotia has no deemed-proper-invoice provision, so the invoice must be complete and correct from the outset for the clock to start.
When does the payment clock start in Nova Scotia?
On the date a proper invoice is received (NS Bill 119 s. 4C(1), by regulation). If the invoice is missing required information it may not qualify, and the clock may not start until the defect is cured.
See the full Nova Scotia guide
Every deadline, notice and adjudication rule in one place.