Segregation of duties in finance

Segregation of duties separates incompatible responsibilities so that one person cannot initiate, approve, release and conceal the same financial transaction without independent involvement.

Why separation matters

A finance process becomes harder to misuse when preparation, review, approval, custody of funds and reconciliation are assigned independently. The objective is not bureaucracy; it is to place meaningful checks at the points where financial risk changes.

Common responsibilities to separate

• creating a supplier and approving supplier changes;
• preparing a payment and approving the payment;
• approving an obligation and releasing cash;
• recording transactions and independently reconciling the account;
• preparing payroll and authorizing payroll release.

Use scope as well as role

A role name alone is often insufficient in a large organisation. Access may also need to be restricted by department, account, fund, campus, payroll group or other operational scope so that users act only within their assigned responsibility.

Apply monetary authority

Approval rights can also depend on value. A user may be permitted to approve routine transactions up to a defined limit while larger transactions require a higher authority. The limit should be enforced by the workflow, not left as a note in a policy document.

Handle exceptions deliberately

Smaller organisations may not always have enough staff for ideal separation. Any exception should therefore be explicit, limited and reviewable rather than silently allowing every user to perform every stage.

Keep evidence of every decision

Effective segregation requires an audit trail showing the actor, action, time, scope and transaction state. This allows management and auditors to verify that controls operated in practice rather than only existing in role descriptions.