Printed invoices are provided upon completion of the project. They will be delivered electronically and (when applicable) a printed copy will be included in the package you will receive that contains your original materials and finished program data disc(s) or flash drive. All invoices are billed with “NET 15” terms. Again, our terms are “Net 15,” and not “Net 30.” We do not currently offer any early-payment discounts. Additional penalties may be applied to any accounts which are unsettled by the 15th day after receipt of the invoice. For projects completed in late December, OKP will request payment sooner so that the check date falls within the same calendar (taxable) year. This will only be a request and OKP will always honor the Net 15 terms of the invoice.