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Legacy Cost Calculator v3

What Does Your Legacy System Really Cost?

Calculate the annual cost of operations, maintenance, risks and productivity losses.

Many legacy systems appear stable at first glance. However, the real costs arise from slow changes, manual workarounds, missing documentation, outage risks and increasing maintenance effort.

This calculator makes hidden costs visible – as an initial guide for system takeover, stabilization or modernization.

TCO Estimate Maintenance & Operating Costs Risk & Downtime Costs Modernization Comparison
Real-Time Calculation Directly in Your Browser
Scenarios for Typical Business Situations
Break-Even Comparison for Modernization
Start Calculator3 minutes · no obligation · no data transmission

Legacy Rarely Costs Only IT Budget.

Visible costs are usually maintenance, operations and licenses. The truly critical costs often arise in business departments, manual processes, slow changes and a lack of transparency.

Direct Costs

Maintenance, support, operations, infrastructure and licenses.

Hidden Costs

Downtime, rework, workarounds, sources of error and technical debt.

Opportunity Costs

Slow changes, blocked innovation and lost productivity.

Cost Analysis Tool

Calculate Your Legacy Costs.

Adjust the parameters to your situation. The results update automatically.

Scenario Templates

Basic Configuration

Core parameters of your legacy situation.

Systems
Users
12 years
Codebase Size

Personnel Costs of Legacy Operations

Direct costs for operations, maintenance, quality assurance and validation.

40 h/month
€/h
€/h
20 h/month

Infrastructure & Licensing Costs

Servers, hosting, third-party licenses and support contracts.

€/year
€/year

Hidden Risk & Opportunity Costs

Cost drivers that are often not clearly visible in traditional IT budgets.

Compliance / Operational Risk Level
24 h/year
€/h
per year
8 %
€/year

Modernization Investment Comparison

Estimate of a one-time investment for reengineering, modernization or controlled replacement.

50 %
Result
Total Cost of Legacy Operations
Estimated per Year
Direct Costs
Risk Costs
Productivity Loss
Infrastructure
Cost per Month

Cost Breakdown

 
 

Does This Sound Like Your System Landscape?

VIALUTIONS supports the takeover, analysis, stabilization and modernization of production legacy systems.

Book a No-Obligation Consultation

What the Calculation Reveals

The calculator is not an exact financial assessment, but an indicative model. It helps make typical legacy-system cost drivers visible in a structured way.

The analysis becomes particularly relevant when systems are business-critical but poorly documented, difficult to maintain or usable only through workarounds.

Typical Next Steps

1Analysis of the Existing System
2Identification of Risks and Quick Wins
3Development of a Realistic Modernization Strategy
4Implementation During Live Operations

Let’s Talk About Your Legacy Systems.

Whether takeover, stabilization or modernization: we review your situation systematically and provide an honest assessment.

Reverse Engineering and Documentation of Evolved Systems
Stabilization and Further Development During Live Operations
AI-Assisted Analysis and Rapid Prototypes

Next Step

Briefly tell us which systems are affected. We will assess what a sensible starting point could look like.

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Note: All calculations are estimates and serve as an initial guide. A reliable assessment requires a specific analysis of your system landscape, processes, risks and operating data.