Cost Benefits Analysis for Projects

Cost Benefits Analysis for Projects

When managing a project, one is required to make a lot of key decisions. There is always something that needs executing, and often that something is critical to the success of the venture. Because of the high stakes, good managers don’t just make decisions based on gut instinct. They prefer to minimize risk to the best of their ability and act only when there is more certainty than uncertainty.

But how can you accomplish that in a world with myriad variables and constantly shifting economics? The answer: consult hard data collected with reporting tools, charts and spreadsheets. You can then use that data to evaluate your decisions with a process called cost benefit analysis (CBA). An intelligent use of cost benefit analysis will help you minimize risks and maximize gains both for your project and your organization.

What Is Cost Benefit Analysis?

Cost benefit analysis in project management is one more tool in your toolbox. This one has been devised to evaluate the cost versus the benefits in your project proposal. It begins with a list, as so many processes do.

There’s a list of every project expense and what the benefits will be after successfully executing the project. From that you can calculate the return on investment (ROI), internal rate of return (IRR), net present value (NPV) and the payback period.

The difference between the cost and the benefits will determine whether action is warranted or not. In most cases, if the cost is 50 percent of the benefits and the payback period is not more than a year, then the action is worth taking.

The Purpose of Cost Benefit Analysis

The purpose of cost benefit analysis in project management is to have a systemic approach to figure out the pluses and minuses of various paths through a project, including transactions, tasks, business requirements and investments. Cost benefit analysis gives you options, and it offers the best approach to achieve your goal while saving on investment.

There are two main purposes in using CBA:

  1. To determine if the project is sound, justifiable and feasible by figuring out if its benefits outweigh costs.
  2. To offer a baseline for comparing projects by determining which project’s benefits are greater than its costs.

Steps to the Cost Benefit Analysis Process

The Process of Cost Benefit Analysis

According to the Economist, CBA has been around for a long time. In 1772, Benjamin Franklin wrote of its use. But the concept of CBA as we know it dates to Jules Dupuit, a French engineer, who outlined the process in an article in 1848.

While it’s not clear if this Founding Father followed this exact process, it has evolved to include these 10 steps:

  1. What Are the Goals and Objectives of the Project? The first step is perhaps the most important because before you can decide if a project is worth the effort, you need a clear and definite idea of what it is set to accomplish.
  2. What Are the Alternatives? Before you can know if the project is right, you need to compare it to other projects and see which is the best path forward.
  3. Who Are the Stakeholders? List all stakeholders in the project.
  4. What Measurements Are You Using? You need to decide on the metrics you’ll use to measure all costs and benefits. Also, how will you be reporting on those metrics? With, you can create eight different project reports with just one click, including project status reports, variance reports and more.

    status report for calculating cost benefit analysis
    Project reporting has never been easier or more accurate—Click to learn more

  5. What Is the Outcome of Costs and Benefits? Look over what the costs and benefits of the project are, and map them over a relevant time period.
  6. What Is the Common Currency? Take all the costs and benefits you’ve collected, and convert them to the same currency to make an apples-to-apples comparison.
  7. What Is the Discount Rate? This will express the amount of interest as a percentage of the balance at the end of a certain period.
  8. What Is the Net Present Value of the Project Options? This is a measurement of profit that is calculated by subtracting the present values of cash outflows from the present values of cash inflows over a period of time.
  9. What Is the Sensitivity Analysis? This is a study of how the uncertainty in the output can be apportioned to different sources of uncertainty in its inputs.
  10. What Do You Do? The final step after collecting all this data is to make the choice that is recommended by the analysis.

How to Evaluate the Cost Benefit Analysis

software for analyzing projects and costs

The data you collected is used to help you determine whether the project will have a positive or negative consequence. Keep the following things in mind as you’re evaluating that information:

  • What are the effects on users?
  • What are the effects on nonusers?
  • Are there any externality effects?
  • Is there a social benefit?

It’s also important to apply all relevant costs and benefits commonly. That is, the time value of the money spent. You can do this by converting future expected costs and benefits into current rates.

Naturally, there is risk inherent in any venture, and risk and uncertainty must be considered when evaluating the CBA of a project. You can calculate this with probability theory. Uncertainty is different than risk, but it can be evaluated using a sensitivity analysis to illustrate how results respond to parameter changes.

How Accurate is Cost Benefit Analysis?

How accurate is CBA? The short answer is it’s as accurate as the data you put into the process. The more accurate your estimates, the more accurate your results.

Some inaccuracies are caused by the following:

  • Relying too heavily on data collected from past projects, especially when those projects differ in function, size, etc., to the one you’re working on
  • Using subjective impressions when you’re making your assessment
  • The improper use of heuristics (problem solving employing a practical method that is not guaranteed) to get the cost of intangibles
  • Confirmation bias or only using data that backs up what you want to find

Are There Limitations to Cost Benefit Analysis?

Cost benefit analysis is best suited to smaller to mid-sized projects that don’t take too long to complete. In these cases, the analysis can lead those involved to make proper decisions.

However, large projects that go on for a long time can be problematic in terms of CBA. There are outside factors, such as inflation, interest rates, etc., that impact the accuracy of the analysis.

There are other methods that complement CBA in assessing larger projects, such as NPV and IRR. Overall, though, the use of CBA is a crucial step in determining if any project is worth pursuing.

Templates to Help With Your Cost Benefit Analysis

As you work to calculate the cost benefit analysis of your project, you can get help from some of the free project management templates we offer on our site. We have dozens of free templates that assist every phase of the project cycle. For cost benefit analysis, use there three.

RACI Matrix

One of the steps when executing a cost-benefit analysis (as detailed above) includes identifying the stakeholders in your project. You need to list those stakeholders, but our free RACI matrix template takes that one step further by outlining who needs to know what. RACI is an acronym for responsible, accountable, consulted and informed. By filling out this template, you’ll organize your team and stakeholders and keep everyone on the same page.

Project Budget

You can’t do a cost-benefit analysis without outlining all your expenses first. That’s where our free project budget template comes in. It helps you capture all the expenses related to your project from labor costs, consultant fees, the price of raw materials, software licenses and travel. There’s even space to capture other line items, such as telephone charges, rental space, equipment for the office, admin and even insurance. A thorough budget makes for a more accurate cost analysis.

Project Risk Register

You have your stakeholders identified and your budget outlined, but there’s always the unknown to contend with. You can’t just leave that up to chance: you must manage risk, which is why our free project risk register is so essential. Use it to outline the risks inherent in the project. There are places to list the description of the risk, its impact, the level of risk and who is responsible for it. By maintaining a good risk register you can control the variables in your project and make a better cost benefit analysis.

Make Any Project Profitable with

No matter how great your return on investment might be on paper, a lot of that value can evaporate with poor execution of your project. is an award-winning project management software that has the tools you need to realize the potential of your project. First, you need an airtight plan.


Our online Gantt charts have features to plan your projects and organize your tasks, so they lead to a successful final deliverable. If things change, and they will, the Gantt is easy to edit, so you can pivot quickly. Gantt Chart

Resource Management

Another snag that can waylay a project are your resources. has resource management tools that track your materials, supplies and your most valuable resource: the project team. If they’re overworked, morale erodes and production suffers.

The workload page on is color-coded to show who is working on what and gives you the tools to reassign to keep the workload balanced and the team productive.

resource management tools in

Real-Time Cost Tracking

The surest way to kill any project is for it to bleed money. lets you set a budget for your project from the start. This figure is then reflected in reports and in the charts and graphs of the real-time dashboard, so you’re always aware of how costs are impacting your project. has the features you need to lead your project to profitability. Dashboard Tracks Costs & Tasks In Real Time

Cost benefits analysis is a data-driven process and requires a project management software robust enough to digest and distribute the information. is a cloud-based project management software with tools, such as a real-time dashboard, that can collect, filter and share your results in easy-to-understand graphs and charts. Try it today with this free 30-day trial.

(This post was updated October 15, 2020)

Surreal Studios Project Managers | Kenya

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