Consultant Invoice for NGO Projects

What a good one includes

• Complete project name, grant or award number, and the specific donor agreement reference to align directly with the NGO's internal ledger.
• Your professional contact details, tax identification number, and current banking information for wire transfers or direct deposits.
• A clear itemization of billable days or hours worked, including the pre-approved daily rate and the exact dates the services were rendered.
• A brief description of the specific deliverables or milestones completed during the billing period as outlined in your Terms of Reference.
• An itemized list of pre-approved reimbursable expenses, such as travel or per diem, paired with corresponding receipt reference numbers.
• The total amount due clearly stated in the specific contract currency, avoiding automatic currency conversions that complicate donor audits.

Common mistakes to avoid

• Grouping multiple diverse tasks into a single lump-sum line item without breaking down the specific days, hours, or deliverables completed.
• Forgetting to attach legibly scanned, itemized receipts for reimbursable expenses or submitting credit card slips instead of actual merchant invoices.
• Omission of the specific donor grant code or project reference number, which forces the NGO finance team to manually track down your contract details and delays payment.
• Billing for rates or expense categories that exceed the maximum thresholds pre-approved in your initial consultant agreement or Terms of Reference.

Frequently asked questions