What documentation must accompany each invoice submitted by the Contractor?

An itemized list of completed tasks is essential for each invoice submitted by the Contractor because it provides a detailed breakdown of the work performed during the billing period. This documentation aligns with best practices in project management, allowing for transparency and accuracy in billing. It gives the client or contracting agency a clear view of what tasks were completed, helping to ensure that payments are made based on the actual work performed rather than on estimates or assumptions.

The itemized list supports good financial governance, enabling both parties to verify that the tasks invoiced correspond to what was agreed upon in the contract. It also facilitates easier reconciliation of accounts and can serve as a reference for future work or disputes. This structured approach ensures that the review process is efficient and straightforward, leading to a smoother workflow in managing the project and payments.