Internal Audit

Assure. Advise. Anticipate. Accelerate.

Deloitte’s Internal Audit services help companies look below the surface to achieve superior performance through a full range of outsourcing, co-sourcing, and advisory services—including the use of technology and data analytics.

Deloitte transforms these functions to achieve a high level of performance, assisting with enhancing process efficiency, fraud detection, operational quality, internal control, and regulatory compliance. We enhance the overall value of IA functions by strengthening quality, flexibility, efficiency, and value. Additionally, Deloitte helps clients extend their IA oversight to gain greater understanding of key enterprise risks such as evolving IT systems, applications, and other technologies.

Our Services

Internal Audit Strategy, Effectiveness Advisory, and Review

We help organizations strengthen the effectiveness of their IA Function, including through transformational activities and strategy development.  We perform independent effectiveness reviews of IA Functions, typically evaluating conformance with Institute of Internal Auditor (IIA) Standards, comparing IA’s practices against leading practices, and assessing IA’s performance relative to stakeholder needs and expectations. 

Internal Audit Outsourcing and Co-Sourcing

We assist clients in the deployment of their IA capabilities, ranging from performing the organization’s IA activities through an outsourced model to partnering with the in-house IA function to co-source the delivery of their activities.

Business process / Internal Control Review

We help clients to perform in-depth review of their "as is" business processes to identify gaps and opportunities for improvement, and ultimately define the "to be" state to meet their business objectives.


We support SOX implementation and management, which are tailored to individual client needs. For private organizations planning for initial public offering (IPO), we perform a SOX readiness assessment for a successful SOX compliance program. For listed companies, we assist clients in optimizing SOX compliance efforts to drive greater efficiency, quality, and cost savings.

Pre-IPO Readiness Assessment

We help clients to prepare for relevant IPO requirements by evaluating and assessing the adequacy of their existing internal controls and business processes.

Risk Assessment

We provide an assessment of the company's risks to identify audit areas from the overall audit universe to focus on areas that matters. 

Internal Audit’s assessment of key risks and processes for the Energy Sector

Download here

Enterprise Risk Management

Deloitte Enterprise Risk Management Framework and Processes are align with COSO ERM 2017, ISO 31000:2018, and, where applicable - Baseline Standards for ERM for Singapore Public Service.