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Income Taxes
3 Months Ended
Mar. 31, 2021
Income Taxes  
Income Taxes

Note 13. Income Taxes

We record our interim provision for income taxes by applying our estimated annual effective tax rate to our year-to-date pre-tax income and adjusting for discrete tax items recorded in the period. Deferred income taxes result from temporary differences between the reporting of amounts for financial statement purposes and income tax purposes. These differences relate primarily to different methods used for income tax reporting purposes, including for depreciation and amortization, warranty and vacation accruals, and deductions related to allowances for doubtful accounts receivable and inventory reserves. Our provision for income taxes included current federal and state income tax expense, as well as deferred federal and state income tax expense.

The effective tax rate for the three months ended March 31, 2021 was a benefit of 44.7%, compared to a benefit of 68.8% for the three months ended March 31, 2020. The primary drivers of the change in our effective tax rate is attributable to a change in the deductibility of business meals to 100% in 2021 from 50% in 2020. We also recorded additional tax benefit in the first quarter of 2020 related to a tax refund for a net  operating loss carryback claim. We recorded an income tax benefit of $1.8 million and a benefit of $2.9 million for the three months ended March 31, 2021 and 2020, respectively.

We recognize the financial statement benefit of a tax position only after determining that the relevant tax authority is more-likely-than-not to sustain the position following an audit. For tax positions meeting the more-likely-than-not threshold, the amount recognized in the condensed consolidated financial statements is the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority.

We are not currently under examination in any jurisdiction. In the event of any future tax assessments, we have elected to record the income taxes and any related interest and penalties as income tax expense on our statement of operations.