Calculate ROI of software projects

Anyone who evaluates a software project only after development costs often makes expensive decisions.

This is clearly why companies should calculate the ROI of software projects before budget releases, providers are selected or internal resources are bound.

The decisive point is not what the solution costs. However, what measurable contribution it makes to revenue, efficiency, quality and risk reduction.

Why ROI is often misjudged in software projects

Calculate ROI from software projects: How companies evaluate costs, benefits, risks and amortization and make better decisions.

For Calculate ROI of software projects, Cost Calculator: Legacy Modernisation and Solution: Legacy Reduction are practical starting points. Budget and industry context: Monolith vs. Microservices.

In many companies, software is still considered as an IT cost block. This leads to shortened decisions.

The most favorable rollout is attractive, although it later causes high operating costs, media breaks or lack of extensibility.

Especially in custom solutions, this is problematic because the economic value is not only in the go-live. However, in the years after.

An example from mid-sized firms. A sales team works with Excel, e-mail and ERP without matching interfaces.

The pain is known - double data input, incorrect offers, long tunes. If an custom sales platform is now built, there may be $10,000 on the cost side.

Who only sees this number hesitates.

However, if you recognize that several hundred hours of work, offer errors and lost sales options are avoided each year, the project is evaluated differently.

ROI points thus create one thing: better prioritization. They help management, IT and department to decide not on abdominal feeling, but on business benefits.

Calculate ROI of software projects - the basic formula

The classic formula is simple:

ROI = (benefits - investment) / investment x 100

The key is not the formula. However, what you collect cleanly as a benefit and as an investment.

In software projects, the investment includes not only initial development costs. However, also often expenses for conception, migration, training, operation, maintenance and change management.

The benefits are more than direct savings.

Typical economic effects are lower personnel costs, less error costs, shorter throughput times, higher graduation rates, better data quality, reduced risks and less dependency on old systems or manual workarounds. .Let's take a simple calculation example.

A company invests $150,000 in an custom web application including interfaces and rollout. The solution saves $90,000 per year by less manual processing, reduced errors and faster processes.

In addition, annual operating costs of $20,000 are incurred. The annual net benefit is $70,000.

In the first year, an ROI of around -53 percent results because the investment has not yet been amortised.

After a little more than two years, the break-even is reached. From then on, the project works significantly positively economically.

This is clearly where there is a common mistake: software projects are rated at short notice.

If you look at the next six months, you will underestimate the yield of long-term, cleanly manageable systems.

Which costs really belong to the invoice

Short: A resilient ROI review begins with a complete cost perspective.

A resilient ROI review begins with a complete cost perspective. Many business cases work excellent on paper because relevant costs are hidden.

Initial investment usually includes needs, architecture, UX/UI, development, testing, project management, documentation and introduction.

Depending on the project, data migration, interface connection, rights and role concepts or security needs are added.

Especially in regulated areas, GDPR-compliant rollout, logging and authorization concepts should also be realistically planned.

There are also ongoing costs. This includes hosting, monitoring, maintenance, support, further development, licensing costs for third-party systems and internal care.

Those who defeat these positions are nice to see the ROI. Anyone who incorporates them transparently creates a solid basis of decision.

Not every project needs to be improved for minimum starting costs. Especially in mid-sized firms, a solution is often more economical. This initially costs a little more.

However, can be warned, expanded and separate of custom service providers.

Rate usefulness correctly: direct, indirect and strategic

The more difficult part is usually not the cost side, but the benefit assessment. Here it helps to distinguish three levels.

The direct benefit is most easily measurable. These include saved working hours, reduced error processing, lower external service provider costs or fewer questions in support.

If a process lasts 30 minutes today and in future only 10, it can be translated in hours and costs. .The indirect benefit is also relevant but often less precise.

These include faster response times, better clarity, higher employee satisfaction or less escalation between specialist and IT. These effects are real, but should be used conservatively.

The strategic benefit continues. Some software projects provide the basis for new business, better scaling or higher compliance security.

A modern portal, AI-assisted automation or the detachment of a critical legacy system does not always bring immediate savings.

However, reduces dependencies and opens up new spaces for action. This also has economic value.

Art is not artificially inflating benefits. If an effect is difficult to measure, work with scenarios instead of using desired numbers.

A practical method for loadable ROI estimates

Short: A pragmatic approach has proven itself to leaders.

A pragmatic approach has proven itself to leaders. Do not start with the question of which software you want to build. However, which operational problem costs money.

Where are waiting times, errors, media breaks or sales losses today? Only when this starting point is clear is the translation worth in needs.

In the next step you measure the actual state. How many processes are there per month? How long does the processing take? How high is the error rate?

How many people are involved? Without loadable basic data, the ROI remains speculative.

Then define the target state. Not abstract, but concrete.

Cut processing time by 40 percent, eliminate double data input completely, reduce manual reports from eight hours to 30 minutes. Such target variables can be expected.

Then evaluate the economic effects in three scenarios - conservative, realistic and ambitious. This is clearly more serious than a single high-gloss number.

Especially in complex projects with multiple dependencies, this method creates clarity over management, purchasing and specialist areas.

Finally, supplement risks and non-monetary factors. If an old system expires, data protection risks exist or knowledge depends on individuals, this is part of the decision.

Not everything can be specified exactly, but you should not ignore these points.

Where ROI calculations are particularly worthwhile for individual software

Short: The more standard a problem, the easier is often the cost-effectiveness assessment of a standard solution.

The more standard a problem, the easier is often the cost-effectiveness assessment of a standard solution. In custom software, the invoice is more differentiated but often more interesting.

The ROI is created here especially when existing processes are competitive or standard software forces too many compromises.

This applies, for example, to custom portals, internal specialist applications, mobile service apps, automation solutions, ERP-related extensions or integration platforms between multiple systems.

In such cases, the benefit arises not only through digitization itself. However, through precise processes, less detours and higher data quality.

Another point: The ROI of custom software depends heavily on the rollout quality.

A solution with clear scope, clean architecture and complete source code transfer creates more value in the long term than a quickly compiled project with technical fault and unclear ease of upkeep.

That is clearly why the provider should be evaluated not only by daily rate. However, by rollout model, clarity and operational safety.

Typical errors in ROI evaluation

Short: Many projects fail not in technology, but in an unclear economic logic.

Many projects fail not in technology, but in an unclear economic logic. Frequently, the benefit is too optimistic while the internal effort is underestimated.

Also common is the error of counting only savings and suppressing extra revenues or risk reduction.

Problematic is also a pure one-year view. Software is in most cases a multiannual investment property.

When architecture and operation are right, the greatest economic effect often arises only from year two or three.

Another mistake lies in missing tracking. Before the start of the project, the ROI is roughly estimated and never checked again.

Better is a simple set of KPIs compared before and after introduction. Thus, a business case becomes a controllable project.

What a good business case has to end

Short: A good business case doesn't have to be perfect.

A good business case doesn't have to be perfect. It must be comprehensible, realistic and decision-making.

If you calculate the ROI of software projects, it is not about mathematical accuracy up to the last dollar. It is about assessing investments structured.

This makes alternatives comparable and keeping risks visible. .For many companies, this is clearly the point where a viable digitalization intention becomes a sustainable project.

Anyone who calculates clean recognizes more quickly what projects only sound nice and which actually create value.

An skilled rollout partner such as Groenewold IT Solutions not only brings about technical rollout. However, also helps to structure scope, cost-effectiveness and operation at an early stage.

The best ROI calculation is in the end not the one with the highest number, but the one on whose basis you can decide with good conscience.

Technical sources and further links

The following separate references complement the grouping on the topics of this Article:

• Bitkom – Digital Economy Association.
• BSI – Federal Office for Information Security.
• European Commission – Digital Strategy.
• MDN Web Docs (Mozilla)
• W3C – World Wide Web Consortium.

"APIs are the backbone of modern software: If you stabilize interfaces late, you will pay with double integration work."

— *Björn Groenewold, Managing Director, Groenewold IT Solutions *