Note 10. Income Taxes

Income Taxes

The components of the pretax loss from operations for the years ended December 31 are as follows (in thousands):

 

 

 

For the Years Ended December 31,

 

 

 

2025

 

 

2024

 

U.S. Domestic

 

$

6,425

 

 

$

8,761

 

Foreign

 

 

(72

)

 

 

79

 

Pretax loss from operations

 

$

6,353

 

 

$

8,840

 

 

The income tax expense (benefit) is as follows (in thousands):

 

 

 

For the Years Ended December 31,

 

 

 

2025

 

 

2024

 

Current:

 

 

 

 

 

 

U.S. federal

 

$

 

 

$

 

State and local

 

 

24

 

 

 

30

 

Foreign

 

 

26

 

 

 

(193

)

Total current income tax expense (benefit)

 

 

50

 

 

 

(163

)

Deferred:

 

 

 

 

 

 

U.S. federal

 

 

9

 

 

 

9

 

State and local

 

 

14

 

 

 

2

 

Total deferred income tax expense

 

 

23

 

 

 

11

 

Income tax expense (benefit)

 

$

73

 

 

$

(152

)

Income taxes paid, net of refunds received, for the year ended December 31, 2025 consists of the following (in thousands):

 

 

For the Year Ended December 31,

 

 

 

2025

 

Federal

 

$

 

State and local

 

 

(12

)

Foreign

 

 

 

UK

 

 

63

 

China

 

 

4

 

Total

 

$

55

 

For the year ended December 31, 2024, the Company had $17.0 thousand income taxes received, net of income taxes paid.

Tax Rate Reconciliation

Upon adoption of ASU 2023-09, Improvements to Income Tax Disclosures, the reconciliation of taxes at the federal statutory rate to our provision for (benefit from) income taxes for the year ended December 31, 2025 was as follows (in thousands, except for percentages):

 

 

 

For the Year Ended December 31,

 

 

 

2025

 

 

 

Amount

 

 

Percent

 

 Income taxes at statutory rates

 

$

(1,334

)

 

 

21.00

%

 State income tax*

 

 

(8

)

 

 

0.12

%

 Foreign tax effects

 

 

 

 

 

 

      Other Foreign

 

 

11

 

 

 

-0.17

%

 Effect of cross -border tax laws

 

 

 

 

 

 

      GILTI

 

 

14

 

 

 

-0.23

%

 Tax Credits

 

 

 

 

 

 

 R&D credit

 

 

(300

)

 

 

4.72

%

 Changes in valuation allowance

 

 

1,354

 

 

 

-21.31

%

 Nontaxable or nondeductible items

 

 

 

 

 

 

      Other

 

 

44

 

 

 

-0.69

%

      Stock-based Compensation

 

 

180

 

 

 

-2.83

%

 Other

 

 

 

 

 

 

      Other

 

 

7

 

 

 

-0.10

%

 Changes in Unrecognized Tax Benefits

 

 

105

 

 

 

-1.66

%

 Income tax expense

 

$

73

 

 

 

-1.15

%

* State taxes in California for 2025 made up the majority (greater than 50%) of the tax effect in this category.

 

The reconciliation of taxes at the federal statutory rate to our provision for (benefit from) income taxes for the year ended December 31, 2024 in accordance with the guidance prior to the adoption of ASU 2023-09 was as follows:

 

 

 

For the Years Ended December 31,

 

 

 

2024

 

Income taxes at statutory rates

 

$

(1,856

)

State income tax, net of federal benefit

 

 

32

 

Permanent items

 

 

106

 

Equity based compensation

 

 

259

 

Federal research credits

 

 

(347

)

Federal return to provision

 

 

35

 

Foreign taxes

 

 

(194

)

Other

 

 

98

 

Change in federal valuation allowance

 

 

1,715

 

Income tax (benefit) expense

 

$

(152

)

Significant Components of Current and Deferred Taxes

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities as of December 31, 2025 and 2024 are as follows (in thousands):

 

 

 

As of December 31,

 

 

 

2025

 

 

2024

 

Deferred tax assets:

 

 

 

 

 

 

Net operating loss carryforwards

 

$

6,659

 

 

$

5,094

 

Research and AMT credits

 

 

4,840

 

 

 

4,427

 

Stock based compensation

 

 

2,117

 

 

 

2,080

 

Lease liability

 

 

1,119

 

 

 

954

 

Section 174 R&D Capitalization

 

 

4,811

 

 

 

5,527

 

Accrued and other

 

 

783

 

 

 

908

 

Deferred tax assets

 

 

20,329

 

 

 

18,990

 

Less valuation allowance

 

 

(18,542

)

 

 

(16,696

)

Deferred tax assets, net of allowance

 

 

1,787

 

 

 

2,294

 

Deferred tax liabilities:

 

 

 

 

 

 

Fixed assets

 

 

(410

)

 

 

(411

)

Goodwill

 

 

(580

)

 

 

(518

)

Right-of-use asset

 

 

(983

)

 

 

(953

)

Intangible asset

 

 

 

 

 

(575

)

Deferred tax liabilities

 

 

(1,973

)

 

 

(2,457

)

Total deferred tax liabilities

 

$

(186

)

 

$

(163

)

We have established a valuation allowance against our net deferred tax assets due to the uncertainty surrounding the realization of such assets. The Company periodically evaluates the recoverability of the deferred tax assets. At such time it is determined that it is more likely than not that deferred assets are realizable, the valuation allowance will be reduced. The Company has recorded a valuation allowance of $18.5 million as of December 31, 2025 as it does not believe it is more likely than not that certain deferred tax assets will be realized due to the recent history of both pre-tax book income and losses, the lack of taxable income available in carryback periods or feasible tax-planning strategies, the limited existing taxable temporary differences, and the subjective nature of forecasting future taxable income into the future. The Company increased its valuation allowance by approximately $1.8 million during the year ended December 31, 2025.

As of December 31, 2025 the Company had federal and state net operating loss (NOL) carryforwards of approximately $26.4 million, and $14.0 million, respectively. The federal NOL generated post 2017 of $16.8 million can be carried forward indefinitely and may generally be used to offset up to 80% of future taxable income for each year. The remaining federal and state NOL carryforwards begin to expire in 2029 and 2028, respectively, if unused.

As of December 31, 2025 the Company had federal and state tax credit carryforwards of approximately $3.5 million, and $2.8 million, respectively, after reduction for uncertain tax positions. The federal tax credit carryforwards will begin to expire in 2026, if unused, and the California tax credits can be carried forward indefinitely. The other state tax credit carryforwards will begin to expire in 2032.

The above federal and state carryforwards and tax credit carryforwards may be subject to an annual limitation under section 382 and 383 of the Internal Revenue Code of 1986, as amended (the Code), and similar state provisions if we experience one or more ownership changes which would limit the amount of NOL and tax credit carryforwards that can be utilized to offset future taxable income and tax, respectively. In general, an ownership change as defined by Section 382 and 383 of the Code, results from transactions increasing ownership of certain stockholders or public groups in the stock of the corporation by more than 50 percentage points over a rolling three-year period. The Company has completed an ownership change analysis through December 31, 2024 and incorporated the impact of ownership changes prior to this date by reducing the Company's NOL and tax credit carryforwards that may not be utilized due to the annual limitations associated with those ownership change dates. Our use of federal and state NOL and tax credit carryforwards could be limited further by the provisions of Section 382 of the Code, depending upon the timing and amount of additional equity securities that we have issued or will issue, subsequent to December 31, 2025. State NOL carryforwards may be similarly limited. If a change in ownership were to occur, NOL and tax credit carryforwards could be eliminated or restricted. If eliminated, the related asset would be removed from the deferred tax asset schedule with a corresponding reduction in the valuation allowance. Due to the existence of the valuation allowance, limitations created by ownership changes, if any, will not impact our effective tax rate.

The following table summarizes the reconciliation of the unrecognized tax benefits activity during the years ended December 31 (in thousands):

 

 

 

2025

 

 

2024

 

Beginning unrecognized tax benefits

 

$

1,314

 

 

$

1,354

 

Gross increases - tax positions in prior period

 

 

1

 

 

 

 

Gross decreases – tax positions in prior period

 

 

 

 

 

(175

)

Gross increases - current year tax positions

 

 

104

 

 

 

135

 

Purchase accounting

 

 

 

 

 

 

Ending unrecognized tax benefits

 

$

1,419

 

 

$

1,314

 

The unrecognized tax benefit amounts are reflected in the determination of the Company’s deferred tax assets. If recognized, none of these amounts would impact the company’s effective tax rate due to the existence of the valuation allowance against deferred tax assets. The Company does not foresee material changes to its uncertain tax benefits within the next twelve months.

The Company’s policy is to recognize interest and/or penalties related to income tax matters in income tax

expense. The Company has no accrual for interest or penalties on balance sheets as of December 31, 2025. The Company has no accrual for interest or penalties on balance sheets as of December 31, 2024. The Company has recognized no interest and/or penalties in the Statement of Operations for each of the years ended December 31, 2025 and 2024.

The Company is subject to taxation in the United States, various state jurisdictions, China and the United Kingdom. Due to the existence of federal, state and foreign net operating loss and credit carryovers, the Company's tax years that remain open and subject to examination by tax jurisdiction are years 2006 and forward for federal and years 2008 and forward for the state of California.

The One Big Beautiful Bill Act of 2025 (OBBBA) was signed into law on July 4, 2025. The OBBBA makes changes to the U.S. corporate income tax including reinstating the option to claim 100% accelerated depreciation deduction on qualified property and immediate expensing of domestic research and development costs while foreign expenditures will continue to be capitalized and amortized over 15 years. The enactment of the legislation did not have a material impact on our income tax rate during the year ended December 31, 2025 and is not expected to have a material impact on our income tax rate in future years.

Historical Timeline

Fiscal YearFiled
2025Feb 26, 2026Showing above
2024Feb 27, 2025
2023Mar 6, 2024
2022Mar 20, 2023
2021Mar 21, 2022
2020Feb 19, 2021
2019Feb 28, 2020
2018Mar 15, 2019
2017Mar 15, 2018
2016Mar 15, 2017

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.