Income Taxes

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Income Taxes

12. Income Taxes

The Company determines its estimated annual effective tax rate at the end of each interim period based on full-year forecasted pre-tax income and facts known at that time. The estimated annual effective tax rate is applied to the year-to-date pre-tax income at the end of each interim period with the cumulative effect of any changes in the estimated annual effective tax rate being recorded in the period in which the changes are determined. The tax effect of significant unusual items is reflected in the period in which they occur. Since the Company is incorporated in Canada, it is required to use Canada’s statutory tax rate of 29.0% in the determination of the estimated annual effective tax rate.

The Company maintains a valuation allowance on balances of certain U.S. state net operating losses, credits and certain non-U.S. tax attributes that the Company has determined are not more likely than not to be realized. A valuation allowance is required when, based upon an assessment of various factors, including recent operating loss history, anticipated future earnings, and prudent and reasonable tax planning strategies, it is more likely than not that some portion of the deferred tax assets will not be realized. In conjunction with the Company’s ongoing review of its actual results and anticipated future earnings, the Company continuously reassesses the possibility of adding a new or additional valuation allowance or releasing the valuation allowance currently in place on its deferred tax assets.

The Company’s effective tax rate of 7.5% for the three months ended March 31, 2023 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions, R&D tax credits and windfall tax benefits upon vesting of certain share-based compensation awards, partially offset by disallowed compensation and uncertain tax position accruals. For the three months ended March 31, 2023, the tax benefits upon vesting of certain share-based compensation awards had a benefit of 8.2% on the Company’s effective tax rate.

The Company’s effective tax rate of 9.1% for the three months ended April 1, 2022 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions, other tax credits, and windfall tax benefits upon vesting of certain share-based compensation awards, partially offset by disallowed compensation and uncertain tax position accruals. For the three months ended April 1, 2022, the windfall tax benefits upon vesting of certain share-based compensation awards had a benefit of 3% on the Company’s effective tax rate.