Blog

What Is SOX Testing? Process, Controls, and Best Practices for Compliance

Written by Suralink | Oct 15, 2025 2:00:02 PM

When investors read a company’s financials, they expect the numbers to be accurate, complete, and trustworthy.

That’s where SOX testing comes in.

Mandated by the Sarbanes-Oxley Act of 2002 (SOX), this process evaluates a company’s internal controls over financial reporting (ICFR) to ensure they’re designed and operating effectively. Done right, SOX testing reduces the risk of material misstatements, strengthens investor confidence, and helps companies avoid costly compliance failures.

In this guide, we’ll cover what SOX testing is, the step-by-step process, examples of controls, best practices, and how technology like Suralink streamlines testing.

What Is SOX Testing?

SOX testing is the process of evaluating internal controls to confirm compliance with the Sarbanes-Oxley Act. It ensures that financial reporting is accurate, reliable, and free of any material misstatement or fraud.

Why SOX Testing Matters

  • Investor Confidence: Protects shareholders by ensuring transparent financial reporting.
  • Compliance: SOX requires public companies to test controls annually.
  • Risk Reduction: Identifies weaknesses that could lead to fraud or misstatements.
  • Audit Readiness: Provides evidence for both internal and external auditors.

Who Conducts SOX Testing?

  • Management: Responsible for establishing and evaluating controls.
  • Internal Audit Teams: Perform testing, walkthroughs, and documentation.
  • External Auditors: Validate management’s assertions as part of the annual SOX audit.

Key Components of SOX Testing

SOX testing covers multiple layers of control:

  1. Financial Reporting Controls
    • Reconciliations, journal entries, revenue recognition, and expense approvals.
  2. IT General Controls (ITGCs)
    • User access management, change management, system backups, and cybersecurity safeguards.
  3. Entity-Level Controls
    • Governance policies, board oversight, whistleblower hotlines, and ethical codes.
  4. Operational Controls
    • Day-to-day activities that indirectly support accurate reporting, such as HR or procurement processes.

 Quick Example: Testing payroll accuracy might involve confirming segregation of duties (HR adds employees, payroll processes pay, finance approves), validating access controls in the HR system, and reviewing reconciliations.

The SOX Testing Process (Step-by-Step)

SOX testing follows a structured cycle each year:

  1. 1. Identify Key Controls
    • Focus on controls that prevent material misstatements.
    • Example: Reviewing how revenue recognition is handled for complex contracts.
  2. 2. Perform Walkthroughs
    • Trace a transaction from initiation to reporting.
    • Ensure the process design aligns with control objectives.
  3. 3. Test Controls
    • Design Effectiveness: Is the control properly designed to prevent errors?
    • Operating Effectiveness: Does the control work as intended in practice?
  4. 4. Document Evidence
    • Record test procedures, sample selections, and results.
    • Evidence can include reports, reconciliations, or system logs.
  5. 5. Report Findings
    • Highlight deficiencies, classify severity (significant deficiency vs. material weakness), and recommend remediation.
  6. 6. Remediate & Retest
    • Management develops corrective actions.
    • Controls are retested to confirm effectiveness.

 Pro Tip: SOX testing is not just about ticking boxes. It’s about building a repeatable, well-documented process that withstands auditor scrutiny.

SOX Testing in Accounting and IT

SOX compliance touches both finance and technology.

Accounting Perspective

  • Key Controls: Journal entry approvals, reconciliations, revenue recognition, expense classifications.
  • Risk Focus: Accuracy and completeness of financial statements.
  • Example: Ensuring a new lease is recorded properly under ASC 842.

IT Perspective

  • Key Controls: Access management, change management, data backups, cybersecurity.
  • Risk Focus: Reliability and security of financial systems.
  • Example: Ensuring terminated employees lose system access immediately to prevent unauthorized transactions.

Together, accounting and IT testing create a holistic view of internal control effectiveness.

SOX Testing Best Practices

Leading companies improve compliance and efficiency with these practices:

  • Adopt a Risk-Based Approach: Focus on high-risk areas first (revenue, cash, IT access).
  • Leverage Automation Tools: Replace manual spreadsheets with automated request lists and evidence tracking.
  • Maintain a Central Audit Trail: Store test results, documentation, and remediation plans in one secure platform.
  • Engage Stakeholders Early: Involve control owners and IT teams before year-end deadlines.
  • Prioritize Remediation: Address deficiencies quickly to avoid audit report delays.

How Suralink Helps with SOX Testing

Traditional SOX testing is often bogged down by spreadsheets, email requests, and manual evidence collection.Suralink helps teams modernize the process.

With Suralink, compliance teams can:

  • Automate Evidence Collection: Request, track, and organize documents in real time.
  • Streamline Collaboration: Communicate securely with control owners and auditors.
  • Track Audit Progress: Dashboards provide visibility into what’s complete or outstanding.
  • Maintain a Verifiable Audit Trail: Ensure every test, document, and remediation step is documented for regulators.

The result: faster, more accurate SOX testing with less back-and-forth.

FAQs About SOX Testing

What is SOX testing?
SOX testing is the process of evaluating internal controls over financial reporting to ensure compliance with the Sarbanes-Oxley Act.

Why is SOX testing important?
It reduces the risk of fraud, ensures accurate financial reporting, and meets regulatory compliance requirements.

What are IT controls in SOX testing?
IT general controls include access management, system security, and change management, all of which safeguard financial reporting systems.

How often should SOX testing be performed?
SOX testing is an annual requirement, though many companies test controls quarterly to stay ahead of issues.

What happens if SOX testing identifies a deficiency?
Management must remediate the issue. Significant deficiencies or material weaknesses must be disclosed in the company’s financial filings.

SOX Testing: Key Takeaways for Compliance

  • SOX testing ensures compliance with the Sarbanes-Oxley Act by verifying internal control effectiveness.
  • The process includes identifying controls, walkthroughs, testing design and operations, documenting evidence, and remediation.
  • Both accounting and IT controls are critical for accuracy and security.
  • Best practices focus on risk, automation, and audit trail management.
  • Suralink streamlines SOX testing with automation, secure collaboration, and real-time tracking.

Why SOX Testing Matters

SOX testing isn’t just a compliance exercise—it’s about building trust. Investors, regulators, and customers rely on the integrity of financial reporting.

With the right approach and the right technology, SOX testing becomes more than a regulatory requirement—it becomes a tool for better governance, risk management, and operational efficiency.

Schedule a demo with Suralink and see how we help compliance teams automate workflows, organize documentation, and maintain audit-ready confidence.