FIRS Tax Audits and Privileged Information: Protecting Your Business Data.

Are You Doing Enough to Keep Your Business Data Safe? • Hamilton  Information Systems


Tax audits by the Federal Inland Revenue Service (FIRS) in Nigeria are a standard procedure to ensure tax compliance. During an audit, FIRS may request access to your business’s financial records, documents and other sensitive information. While cooperation with tax authorities is essential, it is equally vital to protect your business’s privileged information. In this article, we will explore the concept of privileged information, its significance during FIRS tax audits, and strategies to safeguard your business data.

Understanding Privileged Information:

Privileged information refers to confidential and sensitive data that is protected by legal, ethical or professional standards. In the context of tax audits, privileged information may include:

  1. Trade Secrets: Proprietary information that gives your business a competitive edge, such as manufacturing processes, customer lists or product formulas.
  2. Legal Communications: Correspondence and communications with legal counsel regarding tax matters, which are generally protected by attorney-client privilege.
  3. Financial Strategies: Details of your financial strategies, investments, or restructuring plans that could be sensitive from a business perspective.
  4. Employee and HR Data: Employee records, payroll information, and HR data that must be kept confidential.

Significance of Privileged Information During FIRS Audits:

While FIRS has the authority to access your financial records during an audit, they are not entitled to privileged information. Protecting privileged information during a tax audit is crucial for several reasons:

  1. Maintaining Competitive Advantage: Disclosure of trade secrets or proprietary information can harm your business’s competitive advantage.
  2. Preserving Legal Privilege: Legal communications are protected by attorney-client privilege. Unlawful access to such information can undermine this crucial legal protection.
  3. Protecting Sensitive Data: Employee and HR data contain sensitive personal information that must be safeguarded to comply with data privacy laws.

Strategies to Protect Privileged Information During FIRS Audits:

  1. Identify Privileged Information: Before an audit, work with your legal and financial teams to identify privileged information within your records. This allows you to clearly differentiate it from non-privileged data.
  2. Limit Access: Restrict access to privileged information within your organization. Only authorized individuals, such as legal counsel or executives, should have access to this data.
  3. Confidentiality Agreements: Require FIRS auditors to sign confidentiality agreements before granting access to your records. These agreements should explicitly state that privileged information is off-limits.
  4. Redact Sensitive Information: During the audit, redact or withhold sensitive data from the records provided to FIRS. Ensure that only non-privileged information relevant to the audit is shared.
  5. Encryption and Secure Storage: Store digital records securely using encryption and access controls. Maintain physical documents in locked and restricted areas.
  6. Legal Counsel Involvement: Involve legal counsel in the audit process to protect legal communications and assert attorney-client privilege where applicable.
  7. Document the Process: Keep records of all interactions with FIRS auditors, including the information provided and any redactions made.


Protecting privileged information during FIRS tax audits is essential for safeguarding your business’s competitive edge, legal privileges and sensitive data. While cooperation with tax authorities is necessary, it should not compromise the confidentiality of your business’s trade secrets, legal communications or employee data. By following these strategies and seeking professional guidance, you can effectively navigate FIRS audits while preserving the integrity and confidentiality of your privileged information.

For professional advice on Accountancy, Transfer Pricing, Tax, Assurance, Outsourcing, online accounting support, Company Registration, and CAC matters, please contact Sunmola David & CO (Chartered Accountants & Tax Practitioners) at Lagos, Ogun state Nigeria offices, You can also reach us via WhatsApp at +2348038460036.