Some duty pairs should never meet
Not every overlap is dangerous. A person who enters invoices and also counts the petty cash box creates little risk. The pairs below are the ones we treat as conflicts in nearly every company, because together they let one person move money and hide it.
- Vendor setup and payment release. One person could create a vendor, attach their own bank account and pay it.
- Journal entry posting and approval. Entries could change results with no one seeing them before close.
- Payroll changes and payroll approval. A raise or a ghost employee could be added and paid in the same run.
- Cash receipts and customer credits. A payment could be pocketed and the customer's balance cleared with a credit memo.
- Bank reconciliation and payment initiation. The person who would notice an odd payment is the one who made it.
The segregation-of-duties conflict finder lets you check your own team against these pairs before we start.
Approval limits should follow exposure
An approval matrix states how much risk each person may accept on the company's behalf. We draft it by transaction type: purchase orders, invoices without a PO, contracts, journal entries, credit memos, write-offs, payroll changes and wires. For each, it names the limit, the approver, the system where approval is recorded and the stand-in when the approver is away.
Two rules belong in every matrix. New payees and changes to payee bank details need approval from someone outside accounts payable, whatever the amount. And no one approves a transaction they initiated, including the CEO.
When the team is too small
Where a duty cannot be separated, a compensating control watches it instead:
- A monthly report of vendor master changes, reviewed and signed by the CFO or owner
- A bank rule that holds any payment above $25,000 until a second person releases it
- A list of journal entries posted outside business hours, reviewed before close
- An alert when anyone edits their own employee record
Each compensating control needs an owner, a frequency and evidence. We write those into the runbook and test the first cycle with you. If you would rather the reports run themselves, continuous controls monitoring can take them over. For a longer treatment, read segregation of duties when your finance team is three people.
