INCOME TAXES
Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The components of deferred tax assets and liabilities as of December 31, 2025 and 2024, are as follows:
 
(in millions)20252024
DEFERRED TAX LIABILITIES:
Accelerated depreciation$3,655 $3,351 
Prepaid insurance329 282 
Operating lease right-of-use assets249 314 
Other99 99 
Total deferred tax liabilities4,332 4,046 
DEFERRED TAX ASSETS:
Accrued employee benefits356 337 
Loyalty program and flight credit liability540 604 
Operating lease liabilities252 319 
Net operating losses and tax credits (a)644 352 
Other260 267 
Valuation allowance(9)— 
Total deferred tax assets2,043 1,879 
Net deferred tax liability$2,289 $2,167 
(a) As of December 31, 2025 and 2024, the Company had approximately $66 million and $56 million, respectively, of state net operating loss carryforwards (tax effected) to reduce future state taxable income. These state net operating loss carryforwards will expire in years 2026 through 2046 if unused. As of December 31, 2025 and 2024, the Company had $504 million and $253 million, respectively, of federal net operating loss carryforwards (tax effected) that may be carried forward indefinitely. As of December 31, 2025 and 2024, the Company had $75 million and $53 million, respectively, of federal research and development tax credit carryforwards subject to expiration beginning in 2043 if unused.

A valuation allowance is recorded when it is more likely than not that some portion of deferred tax assets will not be realized. During 2025, the Company established deferred tax assets related to Texas research and development tax credits. The gross deferred tax asset totaled $13 million, of which approximately $12 million is not expected to be realized based on current projections of taxable income and applicable utilization limitations. Accordingly, as of December 31, 2025, the Company recorded a valuation allowance of approximately $12 million against these assets. The change in the valuation allowance during the year reflects the initial recognition of the deferred tax assets and updated assessments of future utilization.

Foreign pretax income, income tax expense, and income taxes paid were immaterial for all periods presented. As a result, foreign amounts have not been separately disaggregated.

The provision (benefit) for income taxes is composed of the following:

(in millions)202520242023
CURRENT:
Federal$(2)$— $(10)
State19 
Total current— 
DEFERRED:
Federal107 108 140 
State15 24 19 
Total deferred122 132 159 
Income tax provision$122 $133 $168 
The following table presents the differences between the Company's income tax provision and the amounts computed at the federal statutory income tax rate, on both a dollar and percentage basis:

(dollars in millions)202520242023
U.S. federal statutory tax$118 21.0 %$126 21.0 %$133 21.0 %
State and local income taxes, net of federal income tax effect (1)13 2.3 %20 3.3 %30 4.7 %
Foreign tax effects— — %— — %— — %
Effect of changes in tax laws or rates enacted in the current period— — %— — %— — %
Effect of cross-border tax laws— — %— — %— — %
Tax credits
Research and development tax credits(23)(4.1)%(30)(5.0)%(14)(2.2)%
Other credits(2)(0.4)%(3)(0.4)%(5)(0.8)%
Changes in valuation allowances— — %— — %— — %
Nontaxable or nondeductible items
Per diem10 1.8 %1.5 %1.3 %
Compensation1.4 %13 2.2 %0.9 %
DOT settlement(7)(1.2)%(3)(0.6)%22 3.6 %
Other1.1 %0.9 %0.2 %
Changes in unrecognized tax benefits— — %— — %— — %
Other adjustments(1)(0.2)%(4)(0.7)%(14)(2.2)%
Total income tax provision$122 21.7 %$133 22.2 %$168 26.5 %
(1) State taxes in California, New York City, and Hawaii for 2023; California, Texas, and Hawaii for 2024; and Florida, Maryland, California, Colorado, and Arizona for 2025 represented the majority (greater than 50%) of the tax effect within this category.

The total cash paid for income taxes (net of refunds) is composed of the following:

(in millions)202520242023
U.S. federal$(2)$(19)$(96)
State*(2)
Total cash paid for income taxes (net of refunds)$(1)$(21)$(87)
* Some jurisdictions met the 5% disaggregation threshold; however, the related amounts were immaterial.

The amount of, and changes to, the Company's uncertain tax positions were not material in any of the periods presented. Additionally, the Company does not expect significant changes to the total amount of unrecognized tax benefits within the next 12 months.

The only periods subject to examination for the Company’s federal tax return are tax years 2020, 2024, and 2025. The Company is also subject to various examinations from state and local income tax jurisdictions in the ordinary course of business. These examinations are not expected to have a material effect on the financial results of the Company.

Historical Timeline

Fiscal YearFiled
2025Feb 5, 2026Showing above
2024Feb 7, 2025
2023Feb 6, 2024
2022Feb 7, 2023
2021Feb 7, 2022
2020Feb 8, 2021
2019Feb 4, 2020
2018Feb 5, 2019
2017Feb 7, 2018
2016Feb 7, 2017
2015Feb 3, 2016

About Income Taxes Disclosures

The income tax disclosure reveals how much a company actually pays in taxes versus what the statutory rate would predict. Analysts focus on the effective tax rate (ETR) reconciliation, which breaks down every item driving the gap between the 21% federal rate and the company's reported ETR — including R&D credits, foreign rate differentials, and state taxes. Deferred tax assets (DTAs) and their valuation allowances signal management's confidence in future profitability: a rising allowance suggests the company doubts it can use accumulated tax benefits. Uncertain tax benefit (UTB) reserves quantify exposure to IRS challenges on aggressive positions.

Key signals to watch: sudden ETR drops without clear operational reasons, large increases in valuation allowances, growing UTB balances, and significant unremitted foreign earnings. Post-TCJA, pay attention to GILTI and BEAT provisions that affect multinational tax structures. Compare the cash taxes paid (from the cash flow statement) against the income tax provision to gauge earnings quality.