Depreciation and amortization
Depreciation and amortization was $39.3 million for the six months ended June 30, 2022, a decrease of $2.3 million, or 5.5%, compared to the six months ended June 30, 2021. This decrease was primarily driven by lower amortization due to the accelerated amortization method of merchant contract portfolios and the impact of foreign exchange rates.
Interest expense
Interest expense was $8.4 million for the six months ended June 30, 2022, a decrease of $3.8 million, or 31.1%, compared to the six months ended June 30, 2021. The decrease was primarily due to lower interest rates on the term loan.
Income tax expense
Income tax expense represents federal, state, local and foreign taxes based on income in multiple domestic and foreign jurisdictions. Historically, as a limited liability company treated as a partnership for U.S. federal income tax purposes, EVO, LLC’s income was not subject to corporate tax in the United States, but only on income earned in foreign jurisdictions. In the United States, our members were taxed on their proportionate share of income of EVO, LLC. However, following the Reorganization Transactions, we incur corporate tax on our share of taxable income of EVO, LLC. Our income tax expense reflects such U.S. federal, state, and local income tax as well as taxes payable in foreign jurisdictions by certain of our subsidiaries. For the six months ended June 30, 2022, we recorded a tax expense of $11.1 million and for the six months ended June 30, 2021, we recorded an income tax expense of $11.6 million, which included a net discrete tax expense of $3.3 million primarily related to a valuation allowance recorded to reduce the deferred tax assets not expected to be realized in Spain.
Segment performance
Americas segment profit for the six months ended June 30, 2022 was $68.6 million, compared to $67.8 million for the six months ended June 30, 2021, an increase of 1.3%. The increase was primarily due to the increase in revenue, growth in our merchant portfolio, processing volumes and transactions, and sales-related activity, including the expansion of tech-enabled partners, partially offset by an increase of employee compensation, as a result of headcount growth. Americas segment profit margin was 43.3% for the six months ended June 30, 2022, compared to 46.0% for the six months ended June 30, 2021.
Europe segment profit was $32.1 million for the six months ended June 30, 2022, compared to $26.2 million for the six months ended June 30, 2021, an increase of 22.7%. The increase was primarily due to the increase in revenue, growth in our merchant portfolio, processing volumes and transactions, and sales-related activity, including the expansion of tech-enabled partners, and the increase in economic activity from the abatement of COVID-19 related restrictions. This was partially offset by the impact of the strong U.S. dollar on foreign exchange rates. Europe segment profit margin was 30.3% for the six months ended June 30, 2022, compared to 32.3% for the six months ended June 30, 2021.
Corporate expenses not allocated to a segment were $18.0 million for the six months ended June 30, 2022, compared to $16.1 million for the six months ended June 30, 2021. The increase was primarily due to increases in employee compensation and insurance costs, partially offset by a decrease in professional fees.
Liquidity and capital resources for the six months ended June 30, 2022 and 2021
Overview
We have historically funded our operations primarily with cash flow from operations and, when needed, with borrowings, including under our Senior Secured Credit Facilities. Our principal uses for liquidity have been debt service, capital expenditures, working capital, and funds required to finance acquisitions. However, the Merger Agreement with Global Payments imposes certain limitations on how we conduct our business during the period between the execution of the Merger Agreement and the effective time of the Merger, including limitations on our ability to, among other things, engage in certain acquisitions, incur indebtedness or issue or sell new debt securities.