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Income Taxes
6 Months Ended
Jun. 30, 2021
Income Taxes [Abstract]  
Income Taxes 10. Income Taxes

At the end of each interim period we are required to estimate our annual effective tax rate for the fiscal year, and to use that rate to provide for income taxes for the current year-to-date reporting period. Our 2021 estimated annual effective tax rate, before discrete items, of 23.5% is driven by our blended federal and state statutory rate of 24.7%, and certain permanent differences between GAAP and tax, including disallowed deductions for executive compensation and estimated federal energy credits for current year home deliveries, which decreased our rate by 1.2%.

For the six months ended June 30, 2021, our estimated annual rate of 23.5% was impacted by discrete items which had a net impact of decreasing our rate by 1.0%, including federal energy tax credits claimed on prior year home deliveries in excess of previous estimates and excess tax benefits for vested stock-based compensation.

For the three months ended June 30, 2021 and 2020, we recorded income tax expense of $34.2 million and $11.7 million, respectively. For the six months ended June 30, 2021 and 2020, we recorded income tax expense of $63.6 million and $19.6 million, respectively.