Collecting supplier documents in the US, Canada, UK, Australia and New Zealand

If you buy from suppliers in more than one of these five countries, or your suppliers serve customers in several of them, the documents you collect look similar but are named, issued and checked differently. This guide covers the four differences that cause most of the confusion: business identity, insurance evidence, supply chain reporting and dates.

This is general information to help you organise supplier evidence, not legal advice. Which rules apply depends on your business and your suppliers; check the official sources linked here.

How do you confirm a supplier’s business identity in each country?

Record the supplier’s legal name exactly as the register shows it. Most document mismatches start here: a certificate issued to a parent company, a trading name on an insurance certificate, or a subsidiary that changed its name.

What is insurance evidence called in each country, and what is compulsory?

• United States and Canada: suppliers usually send a certificate of insurance. In Ontario, a WSIB clearance certificate, valid for up to 90 days, relieves a principal of liability for a contractor’s unpaid workplace insurance premiums.
• United Kingdom: most employers must hold employers’ liability insurance of at least £5 million from an authorised insurer, and display the certificate where employees can access it.
• Australia and New Zealand: the usual evidence is a certificate of currency, which confirms a policy is in force at its date of issue.

In every country the certificate is a summary, not the policy. Our certificate of insurance checklist covers what to check.

Which supply chain reporting laws lead buyers to ask suppliers for documents?

These duties fall on the reporting company, not directly on its suppliers. They are one reason larger customers ask suppliers for codes of conduct, questionnaires and statements, and why those documents need renewing every year.

Health and safety also creates document flows. In New Zealand, businesses that share work through contracting chains have overlapping duties to consult, cooperate and coordinate with each other, which often means exchanging safety documents with contractors.

How should you handle dates across countries?

The United States writes dates month first (MM/DD/YYYY); the United Kingdom, Australia and New Zealand write them day first (DD/MM/YYYY); Canadian documents use both. A certificate expiring 03/04/2027 can therefore mean two different days. Do not guess from the supplier’s country: confirm with the document or the issuer, then record the date in a form nobody can misread, such as 3 April 2027 or 2027-04-03.

Do suppliers have to be in the same country as the buyer?

No. The identity and insurance rules that apply depend on where the supplier is established and works, so a UK buyer with Australian suppliers should expect ABNs and certificates of currency. Build your requirements around the supplier’s country, not only your own.

A checklist for collecting documents across borders

• Record each supplier’s legal name and identifier from the official register.
• Ask for insurance evidence by its local name, and check it against the contract.
• Know which reporting laws apply to you, and collect supplier evidence on the same annual cycle.
• Record every date unambiguously, and confirm any numeric date that could be read two ways.
• Keep each document with its country, entity and site so mismatches are visible.

Vendarity serves buyers in all five countries, records each buyer’s local business identifier, displays dates in each workspace’s chosen format and never guesses an ambiguous one. Suppliers can be located anywhere. See how it works.