15. INCOME TAXES

 

Our income tax expense aggregated $11,570 and $10,056 (amounting to 1% and less than 1% of our loss before income taxes) during the years ended December 31, 2025 and 2024, respectively. As of December 31, 2025, we had federal net operating loss carryforwards of $17,496,754 of which $16,055,226 do not expire and of which $1,441,528 expire in 2034 through 2037 (if not utilized before then) and state net operating loss carryforwards of $7,670,528 of which $7,513,712 do not expire and of which $156,816 expire in 2037 through 2038 (if not utilized before then). Additionally, we had federal general business tax credit carryforwards of $901,466 that expire in 2028 through 2045 (if not utilized before then) and state tax credit carryforwards of $745,316 that expire in 2031 through 2039 (if not utilized before then).

 

The provision for income taxes is determined using the asset and liability approach of accounting for income taxes. Under this approach, deferred taxes represent the estimated future tax effects of temporary differences between book and tax treatment of assets and liabilities and carryforwards to the extent they are realizable.

 

During the second quarter of 2018, we assessed our historical and near-term future profitability and recorded $563,252 in non-cash income tax expense to create a full valuation allowance against our net deferred tax assets (which consist largely of net operating loss carryforwards and federal and state credits) based on applicable accounting standards and practices. At that time, we had incurred a net loss for six consecutive quarters, had not been profitable on a year-to-date basis since the nine-month period ended September 30, 2017 and projected additional net losses for some period going forward before returning to profitability. Should future profitability be realized at an adequate level, we would be able to release this valuation allowance (resulting in a non-cash income tax benefit) and realize these deferred tax assets before they expire. We will continue to assess the need for the valuation allowance at each quarter and, in the event that actual results differ from these estimates, or we adjust these estimates in future periods, we may need to adjust our valuation allowance. Currently, we adjust the valuation allowance at the end of each quarter to reduce the value of our deferred tax assets to zero.

 

Net operating loss carryforwards, credits, and other tax attributes are subject to review and possible adjustment by the Internal Revenue Service. Section 382 of the Internal Revenue Code contains provisions that could place annual limitations on the future utilization of net operating loss carryforwards and credits in the event of a change in ownership of the Company, as defined.

 

We file income tax returns in the U.S. federal jurisdiction and several state jurisdictions. We currently have no tax examinations in progress. We also have not paid additional taxes, interest or penalties as a result of tax examinations nor do we have any unrecognized tax benefits for any of the periods in the accompanying financial statements.

 

As described in Note 2, "Basis of Presentations and Use of Estimates and Significant Accounting Policies", additional disclosures below are presented pursuant to the requirements of ASU 2023-09. Amounts as of and for the year ended December 31, 2024, where applicable, were recast to conform with the year ended December 31, 2025, presentation.

 

The income tax expense consisted of the following:

 

  

During the Years

 
  

Ended December 31,

 
  

2025

  

2024

 

Current

        

Federal

 $  $ 

State

  11,570   10,056 

Current subtotal

  11,570   10,056 

Deferred

        

Federal

  (220,758)  (500,927)

State

  (111,888)  (59,032)

Deferred subtotal, gross

  (332,646)  (559,959)

Valuation allowance

  332,646   559,959 

Deferred subtotal, net

      

Income tax expense

 $11,570  $10,056 

 

The components of loss before taxes are as follows:

 

  

During the Years

 
  

Ended December 31,

 
  

2025

  

2024

 

Domestic

 $(1,028,457) $(2,146,573)

Foreign

      

Loss before income taxes

 $(1,028,457) $(2,146,573)

 

Income taxes paid, net of refunds received, by jurisdiction consists of the following:

 

  

During the Years

 
  

Ended December 31,

 
  

2025

  

2024

 

Federal

 $  $ 
         

State and Local — California

  800   800 

State and Local — Michigan

  791    

State and Local — Minnesota

     1,000 

State and Local — New York

  4,000   2,403 

State and Local — Pennsylvania

  1,300    

State and Local — Texas

  3,687   3,010 

State and Local — Other

  113   80 

State and Local

  10,691   7,293 
         

International — Other

      

International

      
         

Total income taxes paid

 $10,691  $7,293 

 

The following table reconciles income tax expense computed at the federal statutory rate with income tax expense as reported by category. Additionally, categories of at least 5% of the expected tax expense are disaggregated by nature or jurisdiction:

 

  

During the Years Ended December 31,

 
  

2025

  

2024

 
   Amount   Percent   Amount   Percent 

Computed tax at Federal Statutory Rate (21%)

 $(215,976)  (21.00)% $(450,780)  (21.00)%

State and local income taxes, net of federal benefit(1)

  (79,693)  (7.75)%  (36,681)  (1.71)%

Foreign tax effects

     0.00%     0.00%

Effect of changes in tax laws/rates

     0.00%     0.00%

Effect of cross-border tax laws

     0.00%     0.00%

Research and experimental tax credits

  (58,901)  (5.73)%  (116,091)  (5.41)%

Changes in valuation allowance

  332,646   32.34%  559,959   26.09%

Nontaxable/nondeductible items

  5,280   0.51%  4,619   0.22%

Share-based compensation

  28,214   2.75%  49,030   2.28%

Changes in unrecognized tax benefits

     0.00%     0.00%

Income tax expense

 $11,570   1.12% $10,056   0.47%

(1) State taxes in California, New York, Pennsylvania, and Minnesota made up the majority of the tax effect in this category.

 

The following table presents qualitative disclosure of state and local income taxes, net of federal benefit:

 

  

During the Years Ended December 31,

 
  

2025

  

2024

 
  

Amount

  

Percent

  

Amount

  

Percent

 

California

 $(16,720)  20.98% $(17,422)  47.50%

Maine

     0.00%  (6,456)  17.60%

Michigan

  (7,070)  8.87%     0.00%

Minnesota

  (15,018)  18.85%  (7,158)  19.51%

New York

  (16,164)  20.28%  (5,364)  14.62%

Pennsylvania

  (26,380)  33.10%  (6,187)  16.87%

Other

  1,659   (2.08)%  5,906   (16.10)%

State and local income taxes, net of federal benefit

 $(79,693)  100.00% $(36,681)  100.00%

 

The significant components of our deferred tax assets, net, consisted of the following:

 

  

As of

 
  

December 31,

 
  

2025

  

2024

 

Property, plant and equipment

 $(950,593) $(1,833,727)

Federal general business tax credits

  901,466   842,565 

Federal net operating loss carryforwards

  3,674,316   3,705,923 

State tax credits and net operating loss carryforwards

  927,108   900,569 

§174 R & D expenditures

  39,034   727,410 

Deferred compensation

  52,872   82,370 

Prepaid expenses and other

  74,110   24,718 

UNICAP

  54,047   22,443 

Incentive compensation

  154,275   121,718 

Valuation allowance

  (4,926,635)  (4,593,989)

Deferred tax assets, net

 $  $ 

 

Historical Timeline

Fiscal YearFiled
2025Mar 30, 2026Showing above
2024Mar 28, 2025

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.