The function of internal audit is concerned with analysis of internal check. The internal audit can look into the duties of each employee. All employees are provided jobs on the basis of their abilities. The auditor can test the effectiveness of internal check. The function of internal audit is examining the application of legal requirements.

Confirmation of liability is a function of internal auditor can determine the work done by every person. The carelessness or negligence on the part of worker is noted. The concerned person is given a chance to explain his position. If the reason is not justified, the liability is confirmed. The function of internal audit is to examine the assets protection. The proper record is to be maintained. The possession must be in the hands of senior officer. The assets are used for business only. There are proper purchase and disposal of these assets. The internal auditor can check that assets are protected.

The accounts are prepared under certain legal frame work. Verification of accuracy is a function of internal audit. The accuracy of accounting books and records can be verified with the help auditing techniques. The audit techniques include inspection, observation, inquiry, confirmation, computation and review. An auditor can check the accuracy through these techniques.