Income Taxes	9 Months Ended
Sep. 28, 2019
Income Taxes
Income Taxes	9. Income Taxes CRA’s effective income tax rates were 14.2% and 20.9% for the third quarter of fiscal 2019 and fiscal 2018, respectively. The effective tax rate for the third quarter of fiscal 2019 was lower than the prior year primarily due to the release of tax reserves as a result of expiration of statutes of limitation, partially offset by a decrease in the tax benefit related to share-based compensation. The effective tax rate in the third quarter of fiscal 2019 was lower than the combined federal and state statutory tax rate primarily due to the reversal of tax reserves as a result of expiration of statutes of limitation, the tax benefit on share-based compensation, and the remeasurement of U.S deferred tax assets and liabilities based on expected fiscal 2019 applicable state apportionment and statutory rates, partially offset by non-deductible items resulting from limitations on the deductibility of compensation paid to executive officers and the deductibility of meals and entertainment. The effective tax rate in the third quarter of fiscal 2018 was lower than the combined federal and state statutory tax rate primarily due to the tax benefit on share-based compensation and the remeasurement of U.S deferred tax assets and liabilities based on expected fiscal 2018 applicable state apportionment and statutory rates. CRA's effective income tax rates were 22.9% and 24.1% for the fiscal year-to-date periods ended September 28, 2019 and September 29, 2018, respectively. The effective tax rate for the fiscal year-to-date period ended September 28, 2019 was lower than the prior year primarily due to the release of tax reserves as a result of expiration of statutes of limitation, partially offset by a decrease in the tax benefit related to share-based compensation. The effective tax rate in the fiscal year-to-date period ended September 28, 2019 was lower than the combined federal and state statutory tax rate primarily due to the release of tax reserves as a result of expiration of statutes of limitation, the tax benefit on share-based compensation, and the remeasurement of U.S deferred tax assets and liabilities based on the expected fiscal 2019 applicable state apportionment and statutory rates, partially offset by non-deductible items resulting from limitations on the deductibility of compensation paid to executive officers and the deductibility of meals and entertainment. The effective tax rate for the fiscal year-to-date period ended September 29, 2018 was lower than the combined federal and state statutory tax rate primarily due to the tax benefit on share-based compensation, partially offset by the non-deductible items referenced above. CRA has not provided for deferred income taxes or foreign withholding taxes on undistributed earnings and other basis differences that may exist from its foreign subsidiaries as of September 28, 2019, because such earnings are considered to be indefinitely reinvested. CRA does not rely on these unremitted earnings as a source of funds for its domestic business as it expects to have sufficient cash flow in the U.S. to fund its U.S. operational and strategic needs. If CRA were to repatriate its foreign earnings that are indefinitely reinvested, it would accrue substantially no additional tax expense.

9. Income Taxes

CRA’s effective income tax rates were 14.2% and 20.9% for the third quarter of fiscal 2019 and fiscal 2018, respectively. The effective tax rate for the third quarter of fiscal 2019 was lower than the prior year primarily due to the release of tax reserves as a result of expiration of statutes of limitation, partially offset by a decrease in the tax benefit related to share-based compensation. The effective tax rate in the third quarter of fiscal 2019 was lower than the combined federal and state statutory tax rate primarily due to the reversal of tax reserves as a result of expiration of statutes of limitation, the tax benefit on share-based compensation, and the remeasurement of U.S deferred tax assets and liabilities based on expected fiscal 2019 applicable state apportionment and statutory rates, partially offset by non-deductible items resulting from limitations on the deductibility of compensation paid to executive officers and the deductibility of meals and entertainment. The effective tax rate in the third quarter of fiscal 2018 was lower than the combined federal and state statutory tax rate primarily due to the tax benefit on share-based compensation and the remeasurement of U.S deferred tax assets and liabilities based on expected fiscal 2018 applicable state apportionment and statutory rates.

CRA's effective income tax rates were 22.9% and 24.1% for the fiscal year-to-date periods ended September 28, 2019 and September 29, 2018, respectively. The effective tax rate for the fiscal year-to-date period ended September 28, 2019 was lower than the prior year primarily due to the release of tax reserves as a result of expiration of statutes of limitation, partially offset by a decrease in the tax benefit related to share-based compensation. The effective tax rate in the fiscal year-to-date period ended September 28, 2019 was lower than the combined federal and state statutory tax rate primarily due to the release of tax reserves as a result of expiration of statutes of limitation, the tax benefit on share-based compensation, and the remeasurement of U.S deferred tax assets and liabilities based on the expected fiscal 2019 applicable state apportionment and statutory rates, partially offset by non-deductible items resulting from limitations on the deductibility of compensation paid to executive officers and the deductibility of meals and entertainment. The effective tax rate for the fiscal year-to-date period ended September 29, 2018 was lower than the combined federal and state statutory tax rate primarily due to the tax benefit on share-based compensation, partially offset by the non-deductible items referenced above.

CRA has not provided for deferred income taxes or foreign withholding taxes on undistributed earnings and other basis differences that may exist from its foreign subsidiaries as of September 28, 2019, because such earnings are considered to be indefinitely reinvested. CRA does not rely on these unremitted earnings as a source of funds for its domestic business as it expects to have sufficient cash flow in the U.S. to fund its U.S. operational and strategic needs. If CRA were to repatriate its foreign earnings that are indefinitely reinvested, it would accrue substantially no additional tax expense.