Sponsor Invoicing QA Checklist
The 12-point checklist used by top-performing billing teams before submitting sponsor invoices. Catches the errors that delay payment and trigger audit findings.
Why This Checklist Matters
Industry data shows 47% of sponsor invoices are rejected on first submission due to preventable errors. Each rejection adds an average of 23 days to payment. This checklist addresses the 12 most common error categories based on analysis of 10,000+ invoice submissions.
Document Verification
1. Protocol version matches invoice period
Confirm the protocol version effective during the billing period. Amendment dates matter.
Common error: Billing for procedures added in amendment before effective date
2. Budget version matches current CTA
Verify unit costs match the most recent budget negotiation. Check for holdback adjustments.
Common error: Using outdated rates after budget amendment
3. Subject enrollment confirmed in CTMS
Cross-reference each billed subject against CTMS enrollment status and visit windows.
Common error: Billing for screen failures or withdrawn subjects
Charge Validation
4. Each charge mapped to protocol visit
Every line item should trace to a specific protocol visit and timepoint.
Common error: Charges without clear protocol justification
5. SOC vs research classification verified
Confirm MCA classification for each procedure. Only research items billed to sponsor.
Common error: Billing routine costs to sponsor (audit finding)
6. Unit costs match contracted rates
Compare each line item unit cost against the approved budget/fee schedule.
Common error: Using institutional rates instead of negotiated sponsor rates
Calculations
7. Quantity calculations verified
Confirm procedure counts match actual visits completed per subject.
Common error: Double-counting or missing procedures
8. Holdback amounts calculated correctly
Apply holdback percentage per CTA. Track separately for final reconciliation.
Common error: Incorrect holdback percentage or forgetting holdback entirely
9. Pass-through costs documented
Verify supporting documentation for all pass-through items (labs, imaging, etc.).
Common error: Missing receipts or invoices for pass-throughs
Format & Submission
10. Invoice format matches sponsor requirements
Use sponsor-specified template. Include required fields: PO number, study ID, period.
Common error: Missing PO number causing processing delays
11. Supporting documentation attached
Include visit logs, procedure records, or other sponsor-required backup.
Common error: Invoice rejected pending documentation
12. Submission channel and contacts verified
Confirm correct email/portal and AP contact. Sponsors change these frequently.
Common error: Invoice sent to wrong contact, sits unprocessed
Implementation Tips
Make It a Habit
Print this checklist and physically check each item before submission. The act of verification catches errors that visual scanning misses. Some teams require two people to sign off on each checklist.
Track Your Error Patterns
When invoices are rejected, log which checklist item would have caught the error. After a few months, you'll know your team's weak spots and can focus training accordingly.
Automate Where Possible
Items 1-9 can be automated with the right systems. Protocol version matching, rate validation, and MCA classification checks should happen before invoices reach QA review.
Automate your invoice QA
Engram Clinical validates invoices against protocol, budget, and MCA automatically—catching errors before they cause payment delays.