You compare two investment proposals for customer contact by calculating them back to a common time horizon or by using the net present value (NPV). Only then are you comparing apples to apples. Without that correction, you might choose the proposal that seems cheaper on paper but turns out to be more expensive in the long run. This article answers the most frequently asked questions about comparing investments with unequal durations in a customer contact environment.
Why do different durations make investments difficult to compare?
Investment proposals with different durations are difficult to compare because a shorter duration can suggest a lower total price, while costs simply continue after it ends. Anyone comparing a five-year contract with a three-year contract without correction is comparing two unequal periods and thus draws the wrong conclusions about return and total cost of ownership.
Suppose you are evaluating a cloud solution for customer contact alongside an on-premise system. The cloud solution has a contract duration of three years, the on-premise system a depreciation period of seven years. If you only compare the initial investment and the costs over three years, the on-premise option might seem more favorable. But what does the on-premise system cost in years four through seven? What are the costs of the maintenance contracts, the licenses, and the integration efforts? Without including that information, the comparison is incomplete.
This problem is particularly strong in customer contact investments because the costs and benefits are spread over several years: implementation costs are often at the beginning, while efficiency gains and cost savings only become visible later. A fair comparison therefore always requires a time horizon that is the same for both options, or a method that takes the time value of money into account.
Which methods exist to compare investments with unequal durations?
The three most commonly used methods to compare investments with unequal durations are the common life method, the net present value (NPV), and the annualized net present value (also known as equivalent annual annuity or EAA). Each method has a different scope of application and its own advantages and disadvantages.
Common life method
With this method, you calculate both investments over a period that is a common multiple of the individual durations. You then compare an investment of three years and one of five years over fifteen years. This is theoretically sound, but in practice, it quickly leads to unrealistic assumptions about repeat investments and future technological developments.
Annualized net present value
The EAA method converts the total NPV of each investment into an annual equivalent amount. This allows you to directly compare how much value each option yields on average per year, regardless of the duration. In practice, this is the most useful method for customer contact investments because you can easily present the outcome to management without having to explain an extensive time horizon table.
How do you apply net present value to customer contact investments?
You calculate the net present value by calculating all future cash flows of a customer contact investment back to their current value and subtracting the initial investment from that. A positive NPV means the investment adds value; a negative NPV means the costs exceed the benefits. The discount rate you use reflects the desired return or the cost of capital of your organization.
For customer contact investments, the cash flows typically consist of:
- Initial implementation costs, licenses, and integration efforts
- Annual operating costs such as subscriptions, management, and support
- Savings on personnel costs through more efficient handling or automation
- Reduced costs due to fewer repeat contacts and shorter handling times
- Revenues from improved customer satisfaction and lower churn
A common mistake is to only include direct cost savings and leave out indirect benefits. Think of the value of lower employee turnover due to lower workload, or the commercial impact of better accessibility. Those benefits are harder to quantify but can substantially strengthen the business case. A thorough business analysis helps you to make these indirect effects transparent as well.
What are the most common mistakes when comparing customer contact investments?
The most common mistake when comparing customer contact investments is omitting the total cost of ownership (TCO). Organizations look at the purchase price or the monthly subscription but forget management, training, integration, migration, and the costs of future adjustments. As a result, the cheapest option seems more attractive than it actually is.
Other common mistakes include:
- Not taking the time value of money into account: a saving of one hundred thousand euros over five years is worth less than the same saving over two years, because money now is worth more than money later.
- Estimating benefits too optimistically: expected efficiency gains are regularly overestimated, while implementation risks and lead time are underestimated.
- Comparing apples to oranges: comparing a cloud solution with an on-premise system without equalizing the durations or annualizing them.
- Leaving risk out of the calculation: a lower NPV with a stable supplier with proven technology can be more attractive than a higher NPV with high implementation risks.
- Not including exit costs: what does it cost to switch to another solution at the end of the term? Those costs belong in the TCO comparison.
Which factors outside the financial calculation influence the choice?
In addition to the financial calculation, strategic, operational, and organizational factors influence the choice between investment proposals for customer contact. An investment with a slightly lower NPV can still be the better choice if it aligns better with the long-term strategy, creates less dependency, or is easier to manage.
Relevant non-financial factors include:
- Scalability: can the solution grow with increasing contact volume or new channels?
- Integration: how well does the solution connect to existing systems such as CRM, ERP, or knowledge bases?
- Supplier risk: how stable and reliable is the supplier, and what is the roadmap for the coming years?
- User-friendliness: how quickly can employees get started with it, and what is the impact on workload and employee satisfaction?
- Compliance and security: does the solution comply with relevant laws and regulations, such as the GDPR?
- Future-proofing: does the solution offer room for AI, automation, and further digitalization?
In practice, it is precisely these factors that are decisive when two proposals are financially close to each other. Comparing investments with different durations is therefore never purely a calculation exercise.
How do you present an investment comparison convincingly to management?
You present an investment comparison convincingly to management by starting with the conclusion, followed by the substantiation. Managers want to know which option you recommend and why, not how the calculation was made. Put the recommendation at the top and then build the argumentation with financial and non-financial considerations.
An effective structure for your presentation looks as follows:
- Recommendation and summary: which option do you propose, what does it yield, and what are the risks?
- High-level comparison: an overview of both options on NPV, TCO, and payback period, so that management understands the financial logic.
- Non-financial considerations: scalability, integration, supplier risk, and strategic fit.
- Risks and assumptions: which assumptions underlie the calculation, and what are the consequences if those assumptions do not come true?
- Next step: a concrete proposal for decision-making or a pilot.
Avoid jargon when presenting to a Management Team or board of directors. Translate financial terms into business results: not “an NPV of two hundred thousand euros”, but “this investment pays for itself in eighteen months and yields structurally lower operational costs thereafter.” This makes the ROI of customer contact tangible and understandable for all decision-makers at the table.
How Pegamento helps in comparing customer contact investments
We help organizations to compare investment proposals for customer contact thoroughly and fairly, so that you can present a substantiated business case internally. We do not do that with a standard calculation model, but with an approach that aligns with your processes, systems, and objectives, built from proven modules without costly customization.
What we offer:
- Business analysis: we map out the total cost of ownership, hidden costs, and realistic benefits, including indirect effects such as employee satisfaction and repeat contact.
- Financial comparison: we calculate investments with unequal durations back to a common basis, so that you compare apples to apples.
- Non-financial assessment: we weigh scalability, integration possibilities, supplier risk, and future-proofing in the advice.
- One point of contact: from analysis and business case to implementation, management, and ongoing optimization, everything under one roof without complex supplier structures.
- Management presentation: we help you present the comparison clearly and convincingly to the board or MT.
Do you want to know how we approach your investment issue? Contact us and we will be happy to think along with you.
Frequently Asked Questions
Which discount rate should I use when calculating the NPV for a customer contact investment?
The discount rate you use typically reflects the weighted average cost of capital (WACC) of your organization, supplemented by a risk premium that fits the type of investment. For customer contact projects, this in practice often lies between 6% and 12%, depending on the sector and the risk profile of the investment. If in doubt, ask for internal advice from your financial department or controller, because a discount rate that is too low overestimates the value of future cash flows and can lead to a wrong investment decision.
How do I deal with uncertain or difficult-to-quantify benefits, such as improved customer satisfaction?
For difficult-to-quantify benefits, use a conservative estimate based on benchmark data or historical figures from similar projects. For example, link customer satisfaction to concrete measurable outcomes, such as a decrease in the churn rate or an increase in the Net Promoter Score, and calculate that back to a financial impact. Always present these benefits separately from the hard cost savings, so that management can consciously weigh how much weight it assigns to the soft factors.
What if the two investment options are fundamentally different, such as a full replacement versus a phased rollout?
In that case, it is important to first define the scenarios on a comparable scope before making the financial comparison. In a phased rollout, map out all phases including interim costs and benefits, and calculate the total back to the same time horizon as the alternative option. Also note that while a phased approach entails less initial risk, it also starts realizing efficiency gains later due to longer implementation time.
How often should I re-perform an investment comparison for customer contact after the initial decision?
Evaluate the business case at least annually, and in any case at moments of significant change, such as a merger, strong growth in contact volume, or a technological development that affects the market. Compare the actual costs and benefits with the assumptions from the original calculation, so that you can adjust in time or consider a reinvestment. An ongoing business case is more valuable than a one-off report that disappears into a drawer.
Is the EAA method also suitable if the two investments differ greatly in risk profile?
The EAA method gives a clear picture of the annual value creation, but by default does not take into account differences in risk between the two options. If one investment is significantly more uncertain than the other, you can compensate for this by using a different, risk-adjusted discount rate for each option. Additionally, consider performing a sensitivity analysis, where you calculate the outcome under optimistic, realistic, and pessimistic assumptions, so that management sees the range of outcomes.
Which common mistake do you see in organizations making a TCO calculation for customer contact for the first time?
The most common beginner’s mistake is that organizations do not include internal hours for implementation, training, and management in the TCO, because those costs are not visible as a direct invoice. Yet those hours represent real costs, especially if they come at the expense of other projects or if external hiring is necessary. Therefore, make sure you make a full inventory of all departments involved and their time investment, and convert that into a cost amount based on internal hourly rates.
How do I ensure that the investment comparison is supported internally by all departments involved?
Involve the relevant departments, such as IT, Finance, HR, and the operational teams, early in the process when setting the assumptions and collecting data. When people are co-owners of the input figures, they are more willing to accept the outcome and defend it to management. Communicate about progress in the meantime and transparently record the assumptions used, so that no discussion arises later about the reliability of the calculation.
