Supplier Invoices & Cost Review Practical guide
Design an Invoice Approval Workflow With Clear Evidence
Define who verifies what before payment
The short answer
A good workflow separates order authorization, receipt confirmation, invoice review, and payment approval in proportion to the business's size. One person may perform several steps in a small team, but the evidence should still show what was checked.
How to approach it
Specify thresholds and exceptions: new vendor, bank-detail change, unexpected fee, high variance, or missing receipt. For a payment instruction change, verify using a previously known contact channel, not a reply to the same email.
- Set approver and backup by spend type
- Require source evidence for exceptions
- Log who resolved the question and when
Could this affect your business?
- Can you trace this charge to an approved order, accepted terms, and a delivery or service record?
- Would your review catch the same bill, a changed pack size, or a fee that appeared this month?
- Can a second reviewer reproduce the comparison from the original documents?
Where BizScoper fits
Keep the source record close to the decision
Money Leak Detector is being developed to surface possible duplicate charges, price changes, and invoice variances for human review. A flag is a question to investigate, not proof of an overcharge.
What this guide cannot determine
This article is general educational information, not legal, tax, accounting, or compliance advice. Rules and contract rights depend on the facts and jurisdiction. Confirm the applicable requirements with the issuing authority or a qualified professional.
Sources and further reading
BizScoper is in development
Know what was agreed, what arrived, and what the invoice says.
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