NETSCOUT SYSTEMS INC Income Taxes Disclosure

NOTE 17 – INCOME TAXES

The reconciliation of income taxes at the federal statutory rate to the reported rate for income taxes prior to our adoption of ASU 2023-09 for fiscal years ended March 31, 2025 and 2024 is as follows:

Deferred tax assets and liabilities are recognized based on the anticipated future tax consequences, attributable to differences between financial statement carrying amounts of assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the differences are expected to reverse. The Company evaluates the recoverability of deferred tax assets by considering all positive and negative evidence. The Company weighs objective and verifiable evidence more heavily in this analysis. In situations where the Company concludes that it does not have sufficient objective and verifiable evidence to support the realizability of the asset it creates a valuation allowance against it. As a result, the Company established a valuation allowance of $23.1 million as of March 31, 2025 and $26.6 million as of March 31, 2026, representing an increase of $3.5 million. The increase in the valuation allowance as of March 31, 2026, as compared to March 31, 2025, is primarily due to deferred tax assets related to foreign tax credits that the Company believes are not more likely than not to be realized. If it is later determined the Company is able to use all or a portion of the deferred tax assets for which a valuation allowance has been established, then the Company may be required to recognize these deferred tax assets as a tax benefit recorded in the period such determination is made.

At March 31, 2026, the Company had state net operating loss carry forwards of $20 million that are subject to expire at various dates beginning in 2036. At March 31, 2026, the Company also had U.S. foreign tax credit carryforwards and state tax credits of $15 million and $11 million that are subject to expire at various dates beginning 2031 and 2037, respectively. At March 31, 2026, the Company had foreign net operating loss carryforwards of $32 million and foreign tax credit carryforwards of $11 million. The majority of foreign net operating losses and foreign tax credits have no expiration dates. As of March 31, 2026, the Company does not expect any U.S. federal and state net operating losses or research and development tax credits to go unutilized.

The Company files U.S. federal tax returns and files returns in various state, local and foreign jurisdictions. With respect to the U.S. federal and primary jurisdictions, the Company is no longer subject to examinations by tax authorities for tax years before 2019, although carryforward attributes that were generated prior to 2019 may still be adjusted upon examination if they either have been or will be used in a future period. The Company also receives inquiries from various tax jurisdictions during the year, and some of those inquiries may include an audit of tax returns previously filed. In the normal course of business, NetScout and its subsidiaries are examined by various taxing authorities, including the IRS in the United States.

The Company includes interest and penalties accrued in the consolidated financial statements as a component of the tax provision. The interest and penalties are immaterial to the provision. Over the next twelve months, previously unrecognized tax benefits primarily due to the lapse of statute of limitations will be immaterial.

The Company continues to assert that certain historical book over tax outside basis differences primarily related to unremitted foreign earnings are permanently reinvested. The Company's intent is to only make distributions from its foreign subsidiaries in the future when they can be made at no or an immaterial net tax cost. Unremitted foreign earnings total approximately $129 million. The Company does not expect taxes related to the unremitted foreign earnings to be material if they were distributed, which would primarily consist of foreign withholding taxes.

In 2021, the Organization for Economic Co-operation and Development announced an Inclusive Framework on Base Erosion and Profit Shifting including Pillar Two Model Rules defining the global minimum tax, which calls for the taxation of large multinational corporations at a minimum rate of 15%. Subsequently multiple sets of administrative guidance have been issued, including the release of a comprehensive Side-by-Side Package announced by the OECD in January 2026. Many non-US tax jurisdictions have either recently enacted legislation to adopt certain components of the Pillar Two Model Rules beginning in 2024 with the adoption of additional components in later years or announced their plans to enact legislation in future years. Considering the Company does not have material operations in jurisdictions with tax rates lower than the Pillar Two minimum, these rules are not expected to materially increase its global tax costs. There remains uncertainty as to the final Pillar Two model rules and the Company continues to evaluate the impacts of enacted legislation and pending legislation to enact Pillar Two Model Rules in the non-US tax jurisdictions it operates in.

On July 4, 2025, the One Big Beautiful Bill Act was signed into law, making permanent certain expiring provisions of the Tax Cuts and Jobs Act, including 100% accelerated depreciation deductions on qualified property and immediate expensing of domestic research and development costs, as well as modifying some of the international tax rules. These changes have not had a material impact on the Company’s income tax provision for the year ended March 31, 2026.