Nowadays, businesses use Financial Models in Excel for financial forecasting, preparing budgets, and complex cost and investment analysis. Excel is a great tool for exploring data quickly, a Financial Model is a useful tool for consolidating and capturing data into one spreadsheet that forms the basis for your forecasting and analysis.

An audit of a Financial Model in Excel is the process of reviewing the model with a specific set of criteria in order to assess the integrity, accuracy and consistency of the model. In this blog post, we will discuss the audit process of Financial Models and review the key areas that should be assessed in order to understand the functioning of the model and its outputs.

Key Takeaways

  • What is an Excel Financial Model Audit?
  • Overview of the Audit Process
  • Key Areas to Assess During an Audit
  • Tips for Auditing Financial Models in Excel

Overview of Excel

Microsoft Excel is a spreadsheet application used for data analysis and financial modeling. It offers features that include cell formatting, sorting, filtering, graphing, and more. Excel also has a wide range of tools which can be used to create and analyze financial models.

Features of Excel

Excel offers a variety of features that are useful for financial modeling. These include the ability to store data in cells, format it to show desired patterns, use formulas to perform calculations and build financial models, sort and filter data, create graphical presentations of data, and much more.

Tools of Excel

Excel offers a wide range of tools that are useful for financial modeling, such as pivot tables, charts and graphs, solver, and other built-in functions. Excel also provides a variety of add-ins, which can be used to extend the capabilities of the software and give users even more power to analyze data and build complex financial models.

  • Pivot tables: allows users to group, filter, and sort data from multiple sources to draw insights from the data.
  • Charts and Graphs: Allows users to display data visually with a variety of chart types.
  • Solver: Enables users to optimize models by altering input values to achieve desired outcomes.
  • Built-in functions: Offers users the ability to analyze and manipulate data using formulas.
  • Add-Ins: Extends the capabilities of Excel by offering users additional features and tools.

Types of Audits in Excel

There are two main categories of audits in Excel that organizations can use to ensure the accuracy and consistency of their financial models and – spreadsheets. Both financial modeling and spreadsheet auditing have their own unique objectives and procedures that they use to assess the accuracy and integrity of financial information.

Financial Model Audit

A financial model audit is designed to evaluate the accuracy and integrity of a company’s financial models. It assesses whether the assumptions and calculations within the models comply with accounting standards and correctly reflect the economic and operational realities of the underlying business. During a financial model audit, auditors analyze the inputs and outputs of the financial models, check for errors, and identify any gaps that may exist in the model’s structure and logic.

Spreadsheet Auditing

Spreadsheet auditing is the process of assessing the accuracy, correctness, and use of spreadsheets in a given organization. It typically involves reviewing both the data in the spreadsheets and the methods used to create or modify the spreadsheets. Auditors assess the quality and integrity of the data in the spreadsheet, as well as the accuracy of the formulas used to create the data. Additionally, they verify that the spreadsheet is being used in accordance with its intended purpose, as well as any applicable laws or regulations.

Basic Steps for an Excel Audit

With organized data, accurate operations and precise models, Excel financial audits provide valuable insights into business performance. It is important to understand the various steps involved in an audit of a financial model in an Excel spreadsheet.

Prepare for Audit

The first step for an audit of a financial model in Excel is to prepare for the audit. This includes gathering relevant documents and all necessary data to support the analysis. Additionally, it is important to create a copy of the original Excel spreadsheet, so that any changes can be easily reverted. It is helpful to document any assumptions and scenarios for the audit process. Finally, it is important to document any control points to ensure the audit is performed accurately.

Analyzing and Reconstructing Sheet

The second step of an audit of a financial model in Excel is to analyze and reconstruct the sheet. This process can involve breaking down the important calculations, analyzing and documenting key assumptions, and reconstructing the spreadsheet with assumptions and scenarios applied. Additionally, it is important to verify the accuracy of the financial model against any documents and data to ensure accuracy.

Checking for Error Sources

The final step for an audit of a financial model in Excel is to check for any errors or inconsistencies. This process involves checking for and correcting any formula errors and verifying data integrity in the spreadsheet. Additionally, it is important to check for any unintentional formatting changes and review any references of external resources. Finally, it is important to check the numbers against any documents and data used to verify accuracy of the financial model.

Understanding Intangible Components

Financial models are calculations designed to assess the profitability of a venture or portfolio. Excel is one of the most popular tools to create and evaluate these financial models. Thus an audit of financial models in Excel should take various intangible components into account to gauge their accuracy.

Data Quality

Data quality checks are essential during a financial model audit. Excel provides various ways to verify the numerical data entered. This involves careful evaluation of the data entered into the worksheet. Specifically, any out of range values can be detected so as to ensure that any anomalies are dealt with. It is important to make sure that the data is correctly indexed and categorized. Additionally, data should be compared against industry benchmarks so as to identify any discrepancies.

Creation of Fraudulent Worksheets

It is important to be attentive to signs of the creation of fraudulent worksheets in Excel. If a financial model is created by manipulating the underlying data, the results can be highly unreliable. Such manipulation is done by selecting data that best serves the purpose of the model. Additionally, using statistical methods to ascertain the validity of the data can also be useful.

Assessing Assumptions

A key aspect of a successful financial model audit is to assess the assumptions that have been made while constructing the model. Since assumptions often play a major role in determining the accuracy of the results, they should be properly checked and validated. This can be done by conducting sensitivity tests, which can help identify the areas where inputs to the model lead to significantly different results.

Additionally, it is important to factor in the volatility of assumptions by looking at the potential impact of external factors. For example, one way to guard against potential risks is by making allowance for changes in taxation or regulation that could affect the behavior of the model.

Digitalization of Financial Models

In the age of digital transformation, organizations are turning to digital tools such as spreadsheets and cloud-based software in order to automate financial modelling and streamline the auditing process. Digital tools can help to create more complex, accurate, and timely financial models in a fraction of the time that would be necessary with traditional manual processes.

Benefits of Automation

Automation of financial models through digitalization can offer several advantages, such as increased efficiency, accuracy, and decreased risk of errors. By automating the process, organizations can create more accurate models faster, without sacrificing accuracy for speed.

Moreover, due to automated features, the auditor can quickly review the assumptions and calculations that are used in the model. Automated features can guarantee that all assumptions are clearly documented, making it easier for the auditor to understand and audit the model.

Streamlining the Audit Process

By digitizing the financial modelling process, organizations can take a significant step towards ensuring efficient audit process. Automation tools can help reduce the risk of errors and improve accuracy. Additionally, these tools can help shorten the audit process, by efficiently analyzing the data and providing real-time insights.

Moreover, digitalization of financial modelling can make it easier to detect irregularities, allowing auditors to quickly and easily identify areas of risk. With digital tools, the auditing process is significantly streamlined, allowing organizations to focus on more important aspects of their business.


The audit of financial models in Excel is a detailed but necessary process that requires a combination of knowledge, skill, and attention to detail. Although most Excel auditors will have the necessary accountancy and financial knowledge to perform the audit, the use of Excel proficiency exercises or the basics of Excel will equip them with the necessary skills. As part of the audit process, it is also important to pay attention to the details in terms of detailed review of the formulas as well as data validation when it comes to entering financial numbers into cells. Lastly, the use of software automation tools can significantly increase the efficiency and accuracy of Excel auditing.

Summary of Excel Auditing

Excel auditing is a painstaking but necessary process that requires compliance with financial laws and regulations. In order to properly perform an audit of financial models in Excel, it is important to have a thorough understanding of the accounting and financial principles that are used to steer the financial decisions of the business.

The auditing process also requires Excel proficiency and it is important to be able to understand how the formulas, cell references, and other functionality dictate the formulas. Lastly, attention to details is critical when it comes to entering numbers into cells and validating values.

Easy-To-Use Software Automation Tools

To further improve the efficiency and accuracy of Excel auditing, there are many software automation tools available on the market today. These tools help automate processes like data entry, audit trail verification, and financial statement reconciliations in spreadsheets. These tools enable auditors to quickly audit financial models and identify trends and errors.

In conclusion, auditing financial models in Excel is an important process that requires knowledge and skill, as well as attention to detail. The use of software automation tools can greatly improve the efficiency and accuracy of the auditing process. Audit professionals should make sure to understand the basics of Excel and use the right software tools to ensure thorough and effective Excel auditing.

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