(8) Income Taxes

 

Our net income tax provision, including both current and deferred, related to U.S. federal and state income taxes, is $73. Our current federal and deferred tax expenses are zero.

 

As further described in Recently Adopted Pronouncements, the Company has elected to prospectively adopt the guidance in ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Taxes Disclosures, or ASU 2023-09. The following table is a reconciliation of the U.S. federal statutory rate of 21% to the Company's effective rate for the year ended December 31, 2025 in accordance with the guidance in ASU No. 2023-09:

 

   2025 
Income tax credit at statutory rates  $392 
Nondeductible or nondeductible items     
   Permanent tax deduction stock options exercised   (271)
  Other nontaxable or nondeductible   3 
Recorded tax credits   (167)
State income tax, net of federal benefits   59 
Other     
    Expiration of net operating losses and credits   968 
   Stock based compensation true-up   207 
   Section 174 true-up   167 
   R&D credit true-up   (153)
   Miscellaneous   1 
Change in valuation allowance   (1,133)
   $73 

 

State taxes in Illinois made up the majority of the tax effect in this category and the supplemental cash flow information in the Consolidated Statement of Cash Flows.

 

The following table is a reconciliation of the U.S. federal statutory rate of 21% to the Company's effective rate for the year ended December 31, 2024, in accordance with the guidance prior to the adoption of ASU 2023-09:

 

   2024 
Income tax credit at statutory rates  $937 
Under accrual of income taxes   (1)
Nondeductible expenses   5 
Recorded tax credits   (116)
Permanent tax deduction stock options exercised   (27)
State income tax, net of federal benefits   179 
Expiration of net operating losses and credits   332 
Effect of change in deferred tax rate   49 
Expiration of stock options   46 
Other   (39)
Change in valuation allowance   (1,138)
   $227 

 

 

 

The approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets (before allocation of valuation allowances) is as follows:

 

             
   As of December 31, 
   2025   2024 
Approximate effect of deferred tax liabilities:        
  Excess tax depreciation  $(420)  $(496)
  ASC 842 operating lease asset   (1,798)   (1,938)
     Total approximate tax effect of deferred tax liabilities   (2,218)   (2,434)
           
Approximate effect of deferred tax assets:          
  Net operating loss carryforwards  $9,266   $10,218 
  163(j) Business interest limitation carryforwards   114    — 
  Inventory and other allowances   29    764 
  Excess book amortization   —    60 
  174 research and experimental expenditures   682    1,053 
  Share-based compensation   688    788 
  Tax credits   509    189 
  ASC 842 Operating Lease Liability   2,355    2,520 
  Other accrued costs   1,142    292 
     Total approximate tax effect of deferred tax assets   14,785    15,884 
           
  Less: valuation allowance   (12,567)   (13,450)
Total approximate tax effect on temporary differences  $—   $— 

 

The valuation allowance decreased approximately $1.0 million and $1.1 million for the years ended December 31, 2025 and 2024, respectively (net of approximately $5.4 million and $8.1 million for the years ended December 31, 2025 and 2024, respectively, for expiring net operating loss carryforwards and credits) due principally to the change in the net operating loss carryforward and uncertainty as to whether future taxable income will be generated prior to the expiration of the carryforward period. Under the Internal Revenue Code, certain ownership changes, including the prior issuance of preferred stock and our public offering of common stock, may subject us to annual limitations on the utilization of our net operating loss carryforward. As of December 31, 2025, it has been determined that we are not subject to annual limitations on the utilization of our net operating loss carryforward.

 

We have federal net operating loss carryforwards for tax purposes of approximately $36.9 million on December 31, 2025. $30.7 million expire between 2026 and 2038. All net operating loss carryforwards generated after January 1, 2018 do not expire. Therefore, $6.2 million in net operating losses generated since January 1, 2018 do not expire. We have Illinois net loss deduction carryforwards for tax purposes of approximately $18.5 million on December 31, 2025. Due to the provisions of Illinois Public Act 102-0669 signed November 16, 2021, Illinois net loss deductions expire between 2029 and 2039.

 

Tax years that remain subject to examination by major tax jurisdictions are open for years subsequent to 2021. Years with NOLs remain subject to examination until 3 years after the NOL is used or until the NOL expires. 

 

Historical Timeline

Fiscal YearFiled
2025Mar 31, 2026Showing above
2024Mar 31, 2025
2023Mar 28, 2024

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.