Free interactive tool
EA Tool TCO Calculator (3-year total cost of ownership)
Estimate the 3-year total cost of ownership of an enterprise architecture tool — licence, implementation, internal effort and ongoing services. Enter your own figures; everything is an editable estimate and the formula is shown in full.
Your cost inputs
All values are your own estimates. Nothing here is a benchmark — type the numbers you expect.
What you expect to pay per year for the tool licence or subscription.
Used only to show per-seat cost — it does not change the totals you enter.
One-time setup, data import, configuration and training.
Internal person-months spent on rollout and adoption in the first year.
Fully loaded internal cost of one full-time person per month (salary + overhead).
Recurring premium support, consulting or managed services per year.
Estimated total cost of ownership
All figures below are estimates derived from your inputs and the formula shown.
Year-1 total (estimate)
€166,000
licence + implementation + internal effort + services
3-year total (estimate)
€310,000
one-offs + recurring x 3 years
3-year breakdown (estimate)
Where the 3-year total comes from, by cost component.
- Licence / subscription (x3 years)€180,000 · 58%
- Implementation / onboarding (one-off)€40,000 · 13%
- Internal effort (year 1)€54,000 · 17%
- Services / support (x3 years)€36,000 · 12%
per seat / year
How this is calculated
internal effort cost = FTE-months x loaded monthly cost year-1 total = annual licence + implementation + internal effort + annual services recurring per year = annual licence + annual services 3-year total = implementation + internal effort + (recurring per year x 3) per-seat licence = annual licence / number of seats
Assumptions baked in
- Internal effort is counted once, in year 1 (rollout). Add ongoing effort to the services line if you expect it every year.
- Implementation / onboarding is treated as a single one-off cost.
- Licence and services are assumed flat across the 3 years — adjust the inputs if you expect price increases.
- Per-seat cost is informational only and does not change the totals.
This is a directional planning aid, not a quote. It uses no external or competitor benchmarks — every number is one you entered. Actual cost depends on your contract, scope and execution.
Want a grounded TCO for your real rollout?
We can map these cost lines to your actual scope and team — and show where unlimited-user pricing changes the maths.