IFRS® Standards

Accounting for Uncertainties in Income Taxes


The Accounting Standards Board (AcSB) is participating in the IFRS Interpretations Committee’s project to provide guidance on how an entity should account for uncertainty over income tax treatments.

Staff Contact(s)

Davina Tam, CPA, CA

Principal, Accounting Standards Board

Meeting & event summaries

January 12, 2016

AcSB Decision Summary – January 12, 2016

The AcSB approved its response letter to the IFRS Interpretations Committee’s Draft Interpretation, “Uncertainty over Income Tax Treatments,” subject to drafting changes.

October 25, 2015

AcSB Decision Summary – October 20, 2015

The AcSB approved a policy for responding to draft Interpretations issued by the IFRS Interpretations Committee that is modelled on its policy for responding to IASB narrow-scope amendments. Both policies involve seeking feedback on proposals from members of its AcSB advisory committees, transition resource support groups and additional stakeholders, as appropriate, based on the significance of the topic. The approved policy will be applied to recently issued and future draft Interpretations.


June 9, 2017


Final IFRIC Interpretation – Uncertainty over Income Tax Treatments

June 9, 2017. The IASB has issued an Interpretation to specify how to reflect uncertainty in accounting for income taxes. The Interpretation is effective for annual reporting periods beginning on or after January 1, 2019 with earlier application permitted.

January 19, 2016


AcSB Response – Uncertainty over Income Tax Treatments

On January 19, 2016, the AcSB submitted a comment letter responding to the IFRS Interpretations Committee’s Draft Interpretation issued in October 2015.  The letter supports the proposals in the Draft Interpretation and includes several suggestions for the Committee to consider.  In particular, the letter encourages clarifying how new developments on uncertain income tax treatments arising after the reporting date should be reflected at the reporting date. Read the AcSB letter posted by the IASB. 

November 12, 2015


AcSB Draft IFRIC Interpretation – Uncertainty over Income Tax Treatments

November 12, 2015. The AcSB has issued a Draft Interpretation that corresponds to the proposed IFRIC Interpretation issued by the IASB’s IFRS Interpretations Committee on this topic. Stakeholders are encouraged to submit their comments, on the form provided, by January 19, 2016.

October 26, 2015


IASB Draft IFRIC Interpretation – Uncertainty over Income Tax Treatments

October 26, 2015. The IASB’s IFRS Interpretations Committee has issued a Draft Interpretation to provide guidance when there is uncertainty in the application of the tax law. Canadian stakeholders are encouraged to submit their comments to the IFRS Interpretations Committee by January 19, 2016.


This project summary has been prepared for information purposes only. Decisions reported are tentative and reflect only the current status of discussions on this project, which may change after further Board deliberations. Decisions to publish Handbook material are final only after a formal ballot process.