Income Taxes
Income (loss) before income taxes consisted entirely of income (loss) from domestic operations of $(240.0) million, $(128.4) million, and $54.3 million for the calendar years ended December 31, 2023, 2024 and 2025, respectively. Income tax expense included in the consolidated statements of operations and comprehensive income (loss) consisted of the following:

Year Ended December 31,
202320242025
Current:
Federal$— $— $— 
State107 185 728 
Total current tax expense107 185 728 
Deferred:
Federal$— $— $— 
State— — — 
Total deferred tax expense— — — 
Total provision for income taxes$107 $185 $728 
Income tax expense differed from the amount computed by applying the Federal statutory income tax rate of 21% to net income (loss) before income taxes for the years ended December 31, 2023, 2024 and 2025 as a result of the following:

Year Ended December 31,
202320242025
AmountRateAmountRateAmountRate
U.S. federal statutory tax rate$(50,405)21.00 %$(26,963)21.00 %$11,409 21.00 %
State and local income taxes, net of federal income tax effect(1)
28 (0.01)%180 (0.14)%672 1.24 %
Foreign tax effects— — %— — %— — %
Effect of changes in tax law or rates enacted in the current period— — %— — %— — %
Effect of cross-border tax laws — — %— — %— — %
Tax credits
Research and development tax credits(6,288)2.62 %(7,806)6.08 %(10,187)(18.75)%
Changes in valuation allowance38,189 (15.91)%50,585 (39.40)%9,711 17.87 %
Nontaxable or nondeductible items
Stock-based compensation2,306 (0.96)%(30,120)23.46 %(26,048)(47.94)%
Section 162(m) limitation16,586 (6.91)%13,840 (10.78)%15,304 28.17 %
Other490 (0.20)%381 (0.30)%544 1.00 %
Changes in unrecognized tax benefits287 (0.12)%178 (0.14)%426 0.78 %
Other adjustment
Federal provision-to-return adjustment(1,154)0.48 %(608)0.47 %(1,133)(2.09)%
Other68 (0.03)%518 (0.40)%30 0.06 %
Effective tax rate$107 (0.04)%$185 (0.15)%$728 1.34 %
_________
(1)State taxes in Pennsylvania and Texas made up the majority (greater than 50 percent) of the tax effect in this category.
On July 4, 2025, the One Big Beautiful Bill Act (the “Act”) was enacted into law. The Act includes significant changes to the U.S. tax code, including restoration of immediate recognition of domestic research and development (“R&D”) expenditures and reinstatement of 100% bonus depreciation for qualifying property. The Company has assessed the Act’s impact and concluded that it did not materially affect its effective tax rate for the current quarter. The Company has elected to immediately expense domestic R&D expenditures incurred in 2025 and will continue to amortize any previously capitalized amounts over the original amortization period.

The tax effects of temporary differences that gave rise to significant portions of the Company’s deferred tax assets and liabilities related to the following:
December 31,
20242025
Deferred tax assets:
Net operating loss carryforwards$346,356 $357,440 
Research and development tax credits56,675 69,300 
Capitalized research and experimental expenditures84,572 65,211 
Accruals and reserves19,494 18,795 
Convertible debt transactions1,189 12,574 
Investment in partnerships— 11,363 
Stock-based compensation12,249 10,622 
Operating lease liabilities14,564 5,456 
Amortization612 322 
Other402 288 
Total deferred tax assets536,113 551,371 
Less: valuation allowance(508,966)(531,883)
Deferred tax assets – net of valuation allowance27,147 19,488 
Deferred tax liabilities:
Servicing rights7,607 9,436 
Right of use asset12,587 4,234 
Interest receivables2,481 2,821 
Intangible assets2,728 2,135 
Depreciation1,183 784 
Investment in partnerships242 — 
Other319 78 
Total deferred tax liabilities27,147 19,488 
Net deferred tax assets$— $— 
Management believes that, based on available evidence, both positive and negative, it is more likely than not that the deferred tax assets will not be utilized, and as such the Company maintains a full valuation allowance at December 31, 2025. The valuation allowance increased by $22.9 million for the year ended December 31, 2025 primarily as a result of current year activities.

As of December 31, 2025, the Company had approximately $1,164.9 million and $1,680.0 million of federal and state (post-apportioned) net operating losses (NOL), that will begin to expire in 2035 and 2034, respectively. The Company has Federal and California research and development tax credits of approximately $77.3 million and $28.1 million, respectively. The Federal research credits will begin to expire in 2032 and the California research credits have no expiration date. The Internal Revenue Code (“IRC”) limits the amount of NOL
carryforwards that a company may use in a given year in the event of certain cumulative changes in ownership over a three-year period as described in Section 382 of the IRC. Utilization of NOL carryforwards and credits may be subject to a substantial annual limitation due to the ownership change limitations provided by the Internal Revenue Code of 1986, as amended, and similar state provisions. The annual limitation may result in the expiration of net operating losses and credits before utilization. The Company performed an ownership analysis and identified ownership changes in prior years, as defined under IRC Section 382 and 383, however neither resulted in a material limitation that will reduce the total amount of NOL carryforwards and credits that can be utilized.

A reconciliation of the beginning and ending balances of gross unrecognized tax benefits is as follows:

Year Ended December 31,
202320242025
Balance at beginning of year$18,474 $22,158 $26,466 
Additions for tax positions of prior years308 179 441 
Tax positions related to the current year3,376 4,129 5,290 
Balance at end of year$22,158 $26,466 $32,197 

If recognized, all of the unrecognized tax benefits would not impact the effective tax rate due to the valuation allowance against certain deferred tax assets. As of December 31, 2025, the Company had $32.2 million unrecognized income tax benefits and there was increases of $5.7 million to the Company’s unrecognized tax benefits during the year. The Company’s policy is to classify interest and penalties associated with unrecognized tax benefits as income tax expense. The Company had no interest or penalty accruals associated with uncertain tax benefits in its consolidated balance sheet and consolidated statement of operations and comprehensive income (loss) for the tax year ended December 31, 2025.

The Company files income tax returns in the U.S. Federal jurisdiction and various state and local jurisdictions. The Company is currently under examination by the Internal Revenue Service with respect to its U.S. federal income tax return for the 2023 tax year. The Company is not under examination by state or local income tax authorities at this time. However, because the Company has net operating losses and credits carried forward in several jurisdictions, certain items attributable to closed tax years are still subject to adjustment by applicable taxing authorities through an adjustment to tax attributes carried forward to open years. All tax returns will remain open for examination by the federal and most state taxing authorities for three years and four years, respectively, from the date of utilization of any net operating loss carryforwards or research and development credits.

The Company paid income taxes to multiple jurisdictions during the period. The table below summarizes income taxes paid, net of refunds received, to federal, state and local, and foreign tax authorities:

Year Ended December 31,
202320242025
Federal$— $— $— 
State and local(658)258 590 
Foreign— — — 
Total$(658)$258 $590 
Income taxes paid (net of refunds) exceeds 5 percent of total income taxes paid (net of refund) in the following jurisdictions:

Year Ended December 31,
202320242025
State and local
California$(1,200)**
New York184 71 119 
North Carolina88 30 117 
Tennessee*32 107 
Oregon67 36 94 
New York City92 22 58 
Texas52 45 46 
Louisiana**30 
_________
* Jurisdiction below the threshold for the period presented.

Historical Timeline

Fiscal YearFiled
2025Feb 10, 2026Showing above
2024Feb 14, 2025
2023Feb 15, 2024
2022Feb 16, 2023
2021Feb 18, 2022

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.