14. Income Taxes

Our income tax provision represents federal, state, and international taxes on our income recognized for financial statement purposes and includes the effects of temporary differences between financial statement income and income recognized for tax return purposes. Deferred tax assets and liabilities are recorded for temporary differences between the financial reporting basis and the tax basis of assets and liabilities. We record a valuation allowance to reduce our deferred tax assets to reflect the net deferred tax assets that we believe will be realized. In assessing the likelihood that we will be able to recover our deferred tax assets and the need for a valuation allowance, we consider all available evidence, both positive and negative, including historical levels of pre-tax book income, expiration of net operating losses, changes in our debt and equity structure, expectations and risks associated with estimates of future taxable income, ongoing prudent and feasible tax planning strategies, as well as current tax laws. As of June 30, 2024, we have a valuation allowance of $51.7 million against certain deferred tax assets consisting primarily of $27.2 million attributable to net operating loss carryovers and $21.3 million attributable to other deferred tax assets consisting largely of foreign intangible assets.

We recorded income tax expense of $1.8 million during the three months ended June 30, 2024, which included tax expense of $2.5 million attributable to Global Intangible Low Taxed Income, $2.3 million attributable to share-based compensation, and $1.1 million attributable to foreign tax rate differences, offset by $3.8 million of tax credits.

We recorded income tax expense of $13.1 million during the six months ended June 30, 2024, which included tax expense of $5.6 million attributable to Global Intangible Low Taxed Income, $4.7 million attributable to share-based compensation, and $3.9 million attributable to current operations.

The total amount of unrecognized tax benefits as of June 30, 2024, and December 31, 2023, was $1.4 million and $1.0 million, respectively. The $1.4 million represents the amount that, if recognized, would impact our effective income tax rate as of June 30, 2024. We adjust these reserves when facts and circumstances change, such as the closing of tax audits or the refinement of an estimate. To the extent that the final tax outcome of these matters is different than the amounts recorded, such differences will affect the provision for income taxes in the period in which such determination is made and could have a material impact on our financial condition and operating results.

We file income tax returns in the U.S. federal jurisdiction, various states, and foreign jurisdictions. With few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2019.