Bone Biologics Corp Income Taxes Disclosure
5. Income Taxes
No federal or state tax provisions have been provided for the years ended December 31, 2025 and 2024 due to the losses incurred during such periods. The provision for income taxes consists of the following:
| Year Ended | December 31, 2025 | December 31, 2024 | ||||||
| Current: | ||||||||
| Federal | $ | $ | ||||||
| State | ||||||||
| Total current | ||||||||
| Deferred: | ||||||||
| Federal | ||||||||
| State | ||||||||
| Total deferred | ||||||||
| Provision for income taxes | $ | $ |
The components of deferred tax assets and liabilities consist of the following:
December 31, 2025 | December 31, 2024 | |||||||
| Deferred tax assets | ||||||||
| Net operating loss carryforwards | $ | 14,145,000 | $ | 10,771,000 | ||||
| Accrued expenses | 1,809,000 | 2,125,000 | ||||||
| Research and development credit carryforwards | 938,000 | 938,000 | ||||||
| Stock-based compensation | 7,919,000 | 7,848,000 | ||||||
| Deferred tax assets before valuation allowance | 24,811,000 | 21,682,000 | ||||||
| Less: Valuation allowance | (24,811,000 | ) | (21,682,000 | ) | ||||
| Net deferred income tax assets | ||||||||
| Deferred tax liabilities | ||||||||
| Net deferred tax assets (liabilities) | $ | $ | ||||||
The Company’s federal and state net operating loss carryforwards at December 31, 2025 and 2024 were approximately $46,140,000 and $34,585,000, respectively, and will begin to expire in 2037 if not utilized.
The Company reviews its deferred tax assets for realization based upon historical taxable income, prudent and feasible tax planning strategies, the expected timing of the reversals of existing temporary differences and expected future taxable income. The Company has concluded that it is more likely than not that the deferred tax assets will not be realized. Accordingly, the Company has recorded a valuation allowance against the net deferred tax assets in the amount of $24,811,000 at December 31, 2025. The net change in the valuation allowance for the year ended December 31, 2025 was $3,129,000.
The effective tax rate differs from the statutory tax rate principally due to the change in valuation allowance, nondeductible permanent differences, credits, and state income taxes.
A reconciliation of the federal income tax rate to the Company’s effective tax rate for the years ended December 31, 2025 and 2024 is as follows:
December 31, 2025 | December 31, 2024 | |||||||||||||||
| Statutory federal income tax rate | $ | (652,888 | ) | 21.0 | % | $ | (863,608 | ) | 21.0 | % | ||||||
| State taxes, net of federal tax benefit | (885,062 | ) | 28.5 | % | (978,736 | ) | 23.8 | % | ||||||||
| Nondeductible permanent items | % | % | ||||||||||||||
| Deferred tax rate change | % | % | ||||||||||||||
| Research and development credit | % | % | ||||||||||||||
| Change in valuation allowance | 1,537,950 | (49.5 | )% | 1,842,344 | (44.8 | )% | ||||||||||
| Income tax provision | $ | 0.0 | % | $ | 0.0 | % | ||||||||||
The Company’s effective tax rate is 0% for income tax for the years ended December 31, 2025 and 2024. Based on the weight of available evidence, including cumulative losses since inception and expected future losses, the Company has determined that it is more likely than not that the deferred tax asset amount will not be realized and therefore a valuation allowance has been provided on net deferred tax assets.
The Company files tax returns for U.S. Federal, State of Massachusetts, and State of California. The Company is not currently subject to any income tax examinations. Since the Company’s inception, the Company had incurred losses from operations, which generally allows all tax years to remain open.
Historical Timeline
| Fiscal Year | Filed | |
|---|---|---|
| 2025 | Mar 2, 2026 | Showing above |
| 2024 | Feb 26, 2025 | |
| 2023 | Feb 21, 2024 | |
| 2022 | Mar 30, 2023 | |
| 2021 | Mar 15, 2022 | |
| 2020 | Apr 15, 2021 | |
| 2019 | Mar 30, 2020 | |
| 2018 | Mar 29, 2019 | |
| 2017 | Apr 2, 2018 | |
| 2016 | Mar 30, 2017 | |
| 2015 | Mar 28, 2016 | |
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.