Skip to content
Count.ie

Finance & Irish taxes

Dated investment XIRR Calculator

Measure annualised return from actual dated cash movements. This free dated investment xirr calculator shows the calculation and its assumptions so you can compare your own figures.

Calculated on your device

Your results

Annualised Xirr Percent15.9039%

Measure annualised return from actual dated cash movements.

Dated Net Present Value€980.02

Calculated outcomes

Total Net Cash
€1,500.00

Assumptions and estimates

  • Dates use actual elapsed days divided by 365; same-date flows are combined. XIRR is restricted to a single sign change and the supported rate bracket. Multiple sign changes can produce ambiguous roots.
  • Method: Combine same-date flows and discount by elapsed actual days divided by 365.
  • Rows: YYYY-MM-DD, signed flow. Single sign change required for a reported root; different conventions can change results.

Useful next steps

  1. Use Compare options to test an alternative side by side.
  2. Copy, print or download a record of this calculation when you need one.

Reports open your email app addressed to s@s1.ie with the public page address only. Your inputs are never added.

How the dated investment xirr calculation works

Combine same-date flows and discount by elapsed actual days divided by 365.

Rows: YYYY-MM-DD, signed flow. Single sign change required for a reported root; different conventions can change results.

Using this calculator

  1. Enter your own figures in the labelled inputs. Keep the currencies, units and time periods consistent.
  2. Choose any applicable rate profile, pattern or assumption shown for this tool. Open additional inputs when relevant.
  3. Review annualised xirr percent and dated net present value, then read the stated assumptions and eligibility conditions before using the result.

Worked example

This is a static example using illustrative inputs, not facts about you or today’s date. The displayed eligibility selections and assumptions apply only to this example.

See example inputs
Dated cash flows: YYYY-MM-DD, amount
2025-01-01, -10000 2025-06-01, 1000 2026-01-01, 10500
Annual discount rate (%)
5
Annualised Xirr Percent
15.9039%
Dated Net Present Value
€980.02

Related calculators

Salary Tax Calculator Ireland 2026 ↗VAT Calculator Ireland ↗Capital Gains Tax Calculator Ireland ↗Inheritance and Gift Tax Calculator Ireland ↗DIRT Savings Interest Tax Calculator Ireland ↗Emergency Tax Calculator Ireland 2026 ↗
All finance & irish taxes calculators →