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Wherever possible we ask that a purchase order is raised before the invoice is issued. This helps with planning and budgeting, and avoids retrospective purchase orders.

Invoices relating to a purchase order should be sent to the NDCN Payables team to process, for assistance contact  Please let us know if the payment is urgent so we can change the payment terms when processing the invoice.


Please check the invoice is correct before sending to the Payables team to process. The invoice will be matched to the current open blanket order. We usually have blanket orders that run from August to July to coincide with the University financial year, however, the blanket order can end to coincide with the expected duration of the costs, or when the project/grant is due to end.


These should be sent to the Payables team for processing along with the purchase order number; if applicable. Some of these costs are known as outside Oxford Costs and do not require a purchase order, however, we need an authorised member of the research team to approve the payment and to provide the code to charge it against. NDCN's Research Grants team will sometimes provide a breakdown of the expenditure codes.

If you have any questions relating to paying an invoice please contact the NDCN Payables team, for assistance contact