INCOME TAXES
The US and foreign components of loss before provision for income taxes for the years ended December 31, 2025, 2024 and 2023, are as follows (in thousands):
Year Ended December 31,
202520242023
United States
$(89,164)$(78,238)$(101,535)
Foreign
(4,676)(10,424)(13,614)
Loss before provision for income taxes
$(93,840)$(88,662)$(115,149)
The components of the provision for income taxes for the years ended December 31, 2025, 2024 and 2023, are as follows (in thousands):
Year Ended December 31,
202520242023
Current:
Federal
$— $— $— 
State
243 169 148 
Foreign
1,685 1,499 1,500 
Total current tax expense
1,928 1,668 1,648 
Deferred:
Federal
— — — 
State
— — — 
Foreign
593 222 167 
Total deferred tax benefit
593 222 167 
Total provision for income taxes
$2,521 $1,890 $1,815 
The following is a reconciliation of the statutory federal income tax rate to the Company’s effective tax rate for the years ended December 31, 2025, 2024 and 2023:
Year Ended December 31,
202520242023
Federal statutory income tax rate
21.0 %21.0 %21.0 %
State income tax expense
(0.2)(0.2)(0.1)
Foreign rate differential
(2.0)0.9 0.6 
Derivatives revaluation
(4.0)(1.1)(0.3)
Stock-based compensation
(2.1)(4.1)(1.6)
Other nondeductible expenses
(1.1)(1.7)(0.9)
Valuation allowance
(14.0)(18.2)(20.7)
Other—net
(0.3)1.3 0.4 
Effective income tax rate
(2.7)%(2.1)%(1.6)%
The components of deferred tax assets and liabilities as of December 31, 2025 and 2024, are as follows (in thousands):
December 31,
2025
December 31,
2024
Deferred tax assets:
Net operating loss carryforwards
$266,042 $259,111 
Accruals and reserves
3,230 2,810 
Capitalized research and development costs
60,295 49,414 
Stock-based compensation
5,011 3,559 
Tax deductible goodwill
765 — 
Other
3,599 1,750 
Total deferred tax assets
338,942 316,644 
Less valuation allowance
(327,554)(307,181)
Total deferred tax assets—net of valuation allowance
11,388 9,463 
Deferred tax liabilities:
Intangibles
(6,766)(6,844)
Other
(4,093)(2,218)
Total deferred tax liabilities
(10,859)(9,062)
Net deferred tax assets
$529 $401 
Based on available evidence, management believes it is not more likely than not that the net deferred tax assets will be fully realizable. As such, the Company has recorded a valuation allowance against net deferred tax assets in all jurisdictions, except for jurisdictions where the Company has historically generated taxable income. The Company regularly reviews the deferred tax assets for recoverability based on historical taxable income, projected future taxable income, the expected timing of the reversals of existing taxable temporary differences, and tax planning strategies by jurisdiction. The Company’s judgment regarding future profitability may change due to many factors, including future market conditions and the ability to successfully execute its business plans and/or tax planning strategies. Should there be a change in the ability to recover deferred tax assets, the Company’s income tax provision would increase or decrease in the period in which the assessment is changed. The Company had a valuation allowance against net deferred tax assets of $327.6 million and $307.2 million as of December 31, 2025 and 2024, respectively. The valuation allowance changed by $20.4 million and $16.4 million during the years ended December 31, 2025 and 2024, respectively. For the years ended December 31, 2025 and 2024, the change in the valuation allowance was primarily attributable to an increase in the amount of net operating loss (NOL) carryforwards and research and development capitalization, which the Company does not expect to recover.
As of December 31, 2025, the Company had US federal NOL carryforwards of $704.2 million, of which $171.1 million were generated prior to the enactment of the 2017 Tax Cuts and Jobs Act (“TCJA”), and therefore would begin to expire in 2035, and $533.1 million that have an unlimited carryover period. As of December 31, 2025, the Company had US state NOL carryforwards of $1.09 billion that begin to expire in 2027.
As of December 31, 2025, the Company had foreign NOL carryforwards of $5.2 million that begin to expire in 2030 and $226.5 million that have an unlimited carryover period.
As of December 31, 2025, the Company did not have any tax credit carryforwards.
Under Section 382 of the Internal Revenue Code, the Company’s ability to utilize NOL carryforwards or other tax attributes in any taxable year may be limited if it experiences an ownership change. The most recent formal Section 382 study was completed as of December 31, 2021, and concluded that the last ownership change for Section 382 purposes was in 2020. The Company has not completed any subsequent formal Section 382 study. As any limitation imposed by section 382 to a non-indefinite tax attribute would result in a corresponding offsetting change in the valuation allowance for U.S. federal and state purposes, no impact of the effective tax rate would be required.
The Company is subject to taxation in the US and various state and foreign jurisdictions. To the extent the Company has tax attribute carryforwards, the tax years in which the attribute was generated may still be adjusted upon examination by the federal, state, or foreign tax authorities to the extent utilized in a future period. As of December 31, 2025, due to the NOLs generated, all the years remain open to examination by the US federal, state and foreign tax authorities. The IRS is examining the 2022 tax year for US federal purposes. There have been no examinations of the Company’s US state income tax returns.
The Company has not provided US income or foreign withholding taxes on the undistributed earnings of its foreign subsidiaries as of December 31, 2025 and 2024, because it intends to permanently reinvest such earnings outside of the United States. If these foreign earnings were to be repatriated in the future, the related US tax liability will be immaterial, due to the participation exemption put in place under the TCJA.
The Company’s policy is to recognize interest and penalties associated with uncertain tax positions as part of the income tax provision and include accrued interest and penalties with the related income tax liability on the Company’s consolidated balance sheets. As of and for the year ended December 31, 2025, the Company has not recognized any interest and penalties in its consolidated statements of operations, nor has it accrued for or made payments for interest and penalties. As of December 31, 2025, the Company does not have any uncertain tax positions.

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.