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Financial Misconduct

Supplier Payment Anomalies

Duplicate, split and out-of-sequence payments detected across supplier disbursements.

📖 6 min read🎯 Intermediate✍️ Updated 2026

Finding the leakage in the disbursement run

Duplicate, split and out-of-sequence payments are among the most common and recoverable forms of financial loss in public-sector accounts payable. They sit squarely within the internal-control objectives of COSO and the financial-management duties imposed by the MFMA and PFMA, and they are routinely tested in AGSA expenditure audits. AuditPro Core runs continuous analytics over the full disbursement population so these anomalies are caught before the payment clears.

The Numbers

AuditPro Core renders this view from your tenant's live, tamper-evident records. The figures below are illustrative sample data.

Anomalous payments

9,640

Value flagged

R1.4 bn

Duplicates confirmed

R210 m

Recovered to date

R96 m

▲ 21%

Anomalies by type

Anomaly detail

Anomaly typePaymentsValue (R m)
Duplicate payment3120420
Split payment2480380
Out of sequence1860290
Round-amount1280190
Weekend / after-hours900120

Figures shown are illustrative sample data for demonstration. AuditPro Core renders these views from your own tenant's live, tamper-evident records.

Duplicate payments

The same invoice paid twice, or two vendors created for one supplier, drains cash that must then be recovered. Matching on amount, date, invoice number and bank account exposes the classic patterns.

Split payments

Breaking one purchase into several smaller payments to stay under a delegation or procurement threshold is a deliberate control circumvention. Clustering payments to a supplier just below a threshold reveals the behaviour.

Out-of-sequence anomalies

Payments dated before the invoice, before goods receipt, or outside normal run cycles often indicate manual override or backdating. Sequence testing turns these into investigable exceptions.

Full-population over sampling

Because the analytics run over every transaction rather than a sample, low-value but high-frequency leakage that sampling would miss is captured, in line with data-analytics expectations under ISSAI.

How AuditPro Core Bridges the Gap

  • Continuous monitoring: the full payment population is scanned for duplicate, split and sequence patterns on each run rather than once a year.
  • Reconciliation: invoices, goods receipts and bank details are matched three ways to confirm a genuine anomaly before it is raised.
  • Exception workflow: flagged payments are assigned, investigated and either cleared or pushed to recovery, with the outcome recorded.
  • Traceability to source: each anomaly links back to the original invoice image, voucher and approval for audit evidence.

Key Takeaways

  • Duplicate and split payments are highly recoverable if caught quickly.
  • Clustering just below a threshold is a deliberate-circumvention signal, not coincidence.
  • Full-population analytics catch the low-value, high-frequency leakage sampling misses.
  • Sequence testing exposes backdated and overridden payments.

See This on Your Own Data

AuditPro Core renders this dashboard from your tenant's live, tamper-evident records — every figure traceable to source.