Kodiak Sciences Inc. Notes to Consolidated Financial Statements (in thousands, except share and per share data) 99 The Tax Cuts and Jobs Act eliminated the option to deduct research and development expenditures currently and requires taxpayers to capitalize and amortize them pursuant to Internal Revenue Code Section 174 beginning in 2022. The capitalized expenses are amortized over a 5-year period for domestic expenses and a 15-year period for foreign expenses. NOLs and tax credit carry-forwards are subject to review and possible adjustment by the Internal Revenue Service (“IRS”) and may become subject to an annual limitation in the event of certain cumulative changes in the ownership interest of significant shareholders over a three-year period in excess of 50% as defined under Sections 382 and 383 in the Internal Revenue Code, which could limit the amount of tax attributes that can be utilized annually to offset future taxable income or tax liabilities. The amount of the annual limitation is determined based on the Company’s value immediately prior to the ownership change. The Company periodically completes a Section 382 analysis. Subsequent ownership changes since the most recent study may further affect the limitation in future years. As of December 31, 2022, the Company had $68.7 million of federal and $614.9 million of state net operating loss available to offset future taxable income. A portion of the federal net operating loss carryforwards begin to expire in 2035 and the state net operating loss carryforwards begin to expire in 2035, if not utilized. $50.6 million of the federal net operating loss are not subject to expiration. As of December 31, 2022, the Company also had federal and state research and development credit carryforwards of approximately $24.6 million and $8.1 million, respectively. The federal research and development credit carryforwards expire beginning 2035. The California tax credit can be carried forward indefinitely. On March 27, 2020, the President signed into law the Coronavirus Aid, Relief, and Economic Security Act, or the CARES Act, an economic stimulus package in response to the COVID-19 global pandemic and the Families First Coronavirus Response Act, or FFCR Act, which permits employees of certain organizations paid sick time stemming from COVID-19-related issues. The CARES Act contains several corporate income tax provisions, including making remaining alternative minimum tax credits immediately refundable; providing a 5-year carryback of NOLs generated in tax years 2018, 2019, and 2020, and removing the 80% taxable income limitation on utilization of those NOLs if carried back to prior tax years or utilized in tax years beginning before 2021; temporarily liberalizing the interest deductibility rules under Section 163(j) of the CARES Act, by raising the adjusted taxable income limitation from 30% to 50% for tax years 2019 and 2020 and giving taxpayers the election of using 2019 adjusted taxable income for purposes of computing 2020 interest deductibility. The CARES Act did not have a material impact on the Company’s tax provision for the years ended December 31, 2022, 2021, or 2020. The Consolidated Appropriations Act, 2021, which was enacted on December 27, 2020, has expanded, extended, and clarified selected CARES Act provisions, specifically on Paycheck Protection Program loans and Employee Retention Tax Credits, 100% deductibility of business meals as well as other tax extenders. The Consolidated Appropriations Act did not have a material impact on the Company’s tax provision for the years ended December 31, 2022, 2021, or 2020. California Assembly Bill 85 (AB 85) was signed into law by Governor Gavin Newsom on June 29, 2020. The legislation suspends the California NOL deductions for 2022, 2021, and 2020 for certain taxpayers and imposes a limitation on certain California tax credits for 2022, 2021, and 2020. The legislation disallows the use of California NOL deductions if the taxpayer recognizes business income and its adjusted gross income is greater than $1,000,000. The carryover periods for NOL deductions disallowed by this provision will be extended. Additionally, any business credit will only offset a maximum of $5,000,000 of California tax. Given the Company’s taxable loss position, this legislation did not impact the tax provision for the years ended December 31, 2022, 2021, or 2020. California Senate Bill 113 (SB 113), was signed into law by Governor Newsom on February 9, 2022. The legislation contains important California tax law changes, including reinstatement of business tax credits and net NOL deductions limited by AB 85 mentioned above. Given the Company’s taxable loss position, this legislation did not impact the tax provision for the years ended December 31, 2022.

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