Find payment errors before public dollars leave the door.
ThirdLine helps governments continuously monitor accounts payable, vendor master, P-Card, invoice, and workflow data to detect duplicate payments, fraud signals, excess payments, and control breakdowns without living in spreadsheets.
Duplicate invoice test for same invoice amount, date, invoice number, and vendor
Review candidate matches, add notes, mark outcomes as recovered, prevented, approved exception, or internal error.
| Score | Invoice Date | Vendor | Amount |
|---|---|---|---|
| 527 | 3/20/2026 | Premier Plumbing Ltd | $1,204 |
| 516 | 3/20/2026 | American Services Corp | $1,204 |
AP risk is not just a duplicate-payment problem.
Duplicate invoices are the easiest signal to understand, but the same AP data can reveal vendor takeover attempts, unusual supplier activity, improper payments, missing workflow controls, P-Card leakage, and errors hiding in old transactions.
Daily forensic review across the full AP lifecycle.
ThirdLine turns ERP data into a repeatable oversight workflow: securely ingest the data, scan historical and current AP transactions, score the risk, route exceptions, document decisions, report recoveries, and strengthen controls.
Scan AP transactions
Analyze invoice number, amount, date, vendor, payment status, purchase order, user ID, document type, and related fields across the full population.
Surface forensic signals
Flag duplicate invoices, unusual vendor activity, invoice timing anomalies, vendor master risk, P-Card reconciliation issues, and payment exceptions.
Resolve with evidence
Add notes, track workflow history, mark outcomes, schedule reports, export support, and give leadership audit-ready documentation.
Built to meet modern AP Forensics requirements.
Procurement teams increasingly expect more than duplicate-payment software. They want a secure SaaS platform, historical backfile review, continuous monitoring, fraud and supplier analytics, P-Card reconciliation, reporting, comments, workflow history, implementation support, and audit-ready evidence.
Secure web-based access
Role-based access for AP forensic users, restricted report viewers, finance leadership, audit, procurement, and dashboard-only stakeholders.
Two-to-10-year historical AP review
Upload and review two to 10 years of historical AP transactions to identify duplicate payments, recoverable overpayments, vendor issues, internal errors, and recurring process gaps.
Business-day monitoring
Move from annual cleanup to business-day AP oversight, with monitoring results posted to the reporting dashboard after each secure data refresh.
80+ preconfigured reports
Support AP, supplier, duplicate payment, P-Card, fraud, tax, unusual transaction, and workflow reporting with 80+ preconfigured reports, configurable dashboards, and exports.
Hivemind approach
Based on working with public sector clients, we continuously build new analytic tests to meet modern fraud and risk threats.
Field-level review, not generic AP summaries.
ThirdLine is designed to analyze the transaction and supplier attributes AP teams actually need for forensic review, recovery, prevention, and audit documentation.
Everything finance teams need to monitor AP continuously.
The platform is aligned to how governments define AP forensic software: SaaS access, two-to-10-year historical data review, daily monitoring, fraud testing, tax checks, P-Card reconciliation, 80+ reports, comments, workflow history, and evidence exports.
Catch the invoices that look paid twice.
Automatically test for exact and likely duplicate payments across vendor names, invoice numbers, amounts, invoice dates, payment dates, purchase orders, descriptions, and payment status.
Monitor the supplier table before it becomes a loss event.
Review new vendors, changed vendors, stale vendors, duplicate tax IDs, local business license opportunities, and high-risk changes to addresses, payment methods, and banking details.
Prioritize unusual AP activity for human review.
Use automated tests to identify AP transactions that may indicate fraud, waste, abuse, errors, or control breakdowns, then keep auditors and management in the loop.
Bring P-Card reconciliation into AP oversight.
Review P-Card transactions, card-to-card duplicates, P-Card-to-cash overlap, receipt support, split purchases, unusual merchants, and policy exceptions.
Turn exceptions into audit-ready evidence.
Every finding should have a clear history: what was flagged, why it mattered, who reviewed it, what notes were added, and whether it was recovered, prevented, approved, or marked as an internal error.
Not just alerts. A resolution workflow.
The ThirdLine demo shows the operational details AP teams need after an exception is flagged: policy configuration, monitoring review, calculated risk signals, invoice scan details, comment fields, workflow history, resolution status, exportable views, dashboard metrics, and scheduled email reports.
Procurement-ready controls and enablement.
AP Forensics software has to satisfy finance, IT, audit, procurement, and leadership. This section gives buyers a faster way to see how ThirdLine supports secure deployment and long-term use.
U.S.-hosted secure SaaS
Support government security review with secure U.S.-hosted cloud operations, role-based access, protected data workflows, and controlled user permissions.
60-day implementation path
A structured onboarding approach to deliver a proven SaaS system within 60 days, including data connection, historical backfile review, AP monitoring configuration, user training, testing, and go-live enablement.
Gold-level support
Unlimited telephone and email support from 9 AM to 5 PM EST, Monday through Friday, for AP, finance, audit, IT, and reporting users.
Updates & maintenance
We create new analytics and updates on a monthly basis, including new risk tests, report enhancements, workflow improvements, and public-sector control updates.
ThirdLine Software
Our Software Platform does it all: policy setup, monitoring queue, transaction review, and duplicate invoice investigation.
The Living Policy
Upload your AP or Procurement Policy. We map analytycs to it to create a Living Policy and train departments not following policy.
Review the monitoring queue
Filter invoices by date, module, status, control, and source so staff can focus on the items that need review.
Turn any AP or Analytics into a Report and Dashboard, or use our Templates
Reports & Dashboards with automated delivery to stakeholders.
40+ Analytics out of the box, more built at your request
From duplicate candidates to fraud to efficienty, we have everything you want to flag.
Estimate the dollars worth reviewing.
Enter your annual AP spend and a conservative recovery assumption. This is directional only, but it gives finance leaders a fast way to frame the value of reviewing the full population instead of relying on manual sampling.