Ottawa's private sector is largely organized around one very large buyer. Technology firms, consultancies, engineering practices, translators, trainers and facilities contractors all sell to government, and many also sell to the large technology employers that grew up alongside it.
Federal invoicing is a documentation exercise
Public sector invoices are paid on contract terms, but the contract has to be followed exactly. An invoice normally needs to reference the purchase order or standing offer, match the contract wording, and be supported by confirmation that the goods or services were received.
Where any of those pieces are missing, the invoice is usually returned rather than paid, and the clock effectively restarts. For a small supplier, that can add weeks to a wait that was already long. Paperwork discipline is therefore not an administrative detail in this market. It is the difference between an invoice that gets processed and one that does not.
What a provider looks for in public sector invoices
The customer's ability to pay is not in question, so the review turns almost entirely on documentation and on the contract. A provider will want a purchase order, a signed acceptance or receiving report where one exists, and a clear link between the invoice and the work described in the contract. It will also check whether the contract permits assignment of the receivable.
Technology companies and enterprise customers
Software and technology firms in the city often sell to large organisations on annual or multi year contracts, with invoicing on a schedule rather than on delivery. Those invoices are usually easy to verify once the contract is clear, but the contract terms matter. Some agreements restrict assignment or require the customer's consent, and that has to be settled before an invoice is sold.
Professional services and the consulting cycle
Consultancies carry the cost of people between payments. Salaries are monthly, invoices follow approval, and approval depends on client sign off. Where a client approves hours at month end, the gap is predictable, which makes the arrangement easier to plan around.
Providers will typically want engagement documentation and approved time records alongside each invoice, because a services invoice without evidence of approval is difficult to collect.
What a provider reviews
- Purchase orders, standing offers and contract numbers on each invoice.
- Evidence of receipt or acceptance of the work.
- Whether the contract allows assignment of the receivable.
- The customer's payment process and any known documentation requirements.
- The spread of your revenue across several departments or clients.
Subcontractors and the prime contract
Many Ottawa suppliers work as subcontractors to a prime contractor rather than directly to the department. In that situation the invoice is owed by the prime, not by the government, and a provider assesses the prime's credit rather than the public buyer's. Being clear about who owes the money avoids a wasted application.
Related guides
The wider provincial context is in the Ontario guide, and the city counterpart for commercial customers is Toronto. Trade context sits in government contractors and staffing. All arrangements are compared under factoring types.