How to use this calculator
- Enter income tax expense, positive pretax income.
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Effective rate=income tax expense/positive pretax income.
Assumptions and limitations
Deferred taxes and one-off items can make this differ from cash taxes; negative pretax income is unsupported.
Worked example
With income tax expense = 20000, positive pretax income = 100000, effective tax rate is approximately 20%.
What the result means
Describe the accounting tax burden from entered statements rather than applying a statutory rate.
Common questions
How should I interpret effective tax rate?
Describe the accounting tax burden from entered statements rather than applying a statutory rate.
What should I check before using this result?
Deferred taxes and one-off items can make this differ from cash taxes; negative pretax income is unsupported.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.