| ● | Corporate Overhead. Depreciation and amortization expenses decreased within our corporate overhead by $0.3 million, or 23.1%, to $1.0 million from $1.3 million, for the three months ended March 31, 2022 and 2021, respectively, primarily as a result of certain assets becoming fully depreciated in recent periods. |
We expect depreciation and amortization expense to increase within all of our segments as we acquire tangible assets to expand or upgrade our telecommunications networks.
Amortization of intangibles from acquisitions. Amortization of intangibles from acquisitions include the amortization of customer relationships and trade names related to our completed acquisitions.
Amortization of intangibles from acquisitions increased by $2.9 million to $3.3 million from $0.4 million for the three months ended March 31, 2022 and 2021, respectively, as a result of the Alaska Transaction.
Loss on disposition of long-lived assets. During the three months ended March 31, 2022, we recorded a loss on the disposition of long-lived assets of $3.4 million. Of this amount, $2.4 million was incurred in our US Telecom segment relating to the disposal of certain assets while $1.0 million was incurred in our International Telecom segment as a result of the modification of agreements for the use of other certain assets.
During the three months ended March 31, 2021, we recorded a loss on the disposition of long-lived assets of $0.1 million, primarily related to the Vibrant Transaction.
Interest income. Interest income represents interest earned on our cash, cash equivalents, restricted cash and short-term investment balances and were nominal amounts during both the three months ended March 31, 2022 and 2021.
Interest expense. We incur interest expense on the 2019 CoBank Credit Facility, the Alaska Credit Facility, the Viya Debt, the One Communications Debt and the Receivables Credit Facility (each as defined below). Interest expense also includes commitment fees, letter of credit fees and the amortization of debt issuance costs.
Interest expense increased to $3.4 million from $1.1 million for the three months ended March 31, 2022 and 2021, respectively, as additional interest expense was incurred as a result of an increase in interest rates and for new borrowings under the 2019 CoBank Credit Facility, the Alaska Credit Facility and the Receivables Credit Facility.
We expect that interest expense will increase in future periods as a result of an expected increase in both interest rates and borrowings under the 2019 CoBank Credit Facility and the Receivables Credit Facility.
Other income (expenses). Other income (expenses) represents miscellaneous non-operational income earned and expenses incurred.
For the three months ended March 31, 2022, other income (expenses) was $4.8 million of income primarily related to gains from our non-controlling investments.
For the three months ended March 31, 2021, other income (expense) was income of $2.4 million which was primarily related to gains from our non-controlling investments partially offset by a net loss on foreign currency transactions.
Income taxes. Our effective tax rate for the three months ended March 31, 2022 and 2021 was 296.7% and 6.5%, respectively.
We recorded an income tax provision of $3.0 million in relation to income before taxes of $1.0 million for the three months ended March 31, 2022. The effective tax rate for the three months ended March 31, 2022 was primarily impacted by the following items: (i) a $0.5 million net increase of unrecognized tax positions recognized discretely, (ii) a $2.1 million net expense recognized discretely to record a valuation allowance on certain deferred tax assets that are not