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Income taxes | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure [Abstract] |
Income taxes | Note 14 – Income taxes The United States of America The Company is subject to taxation in the United States and certain state jurisdictions. The provision for income taxes differs from the amounts which would be provided by applying the statutory federal income tax rate of 21% to the net loss before provision for income taxes. Accordingly, the Company reevaluated its deferred tax assets on net operating loss carryforward in the U.S. As of December 31, 2022, due to uncertainties surrounding future utilization, the Company recorded a full valuation allowance against the deferred tax assets based upon management’s assessment as to their realization. People’s Republic of China Effective January 1, 2008, the New Taxation Law of PRC stipulates that domestic enterprises and foreign invested enterprises (the “FIEs”) are subject to a uniform tax rate of 25%. Under the PRC tax law, companies are required to make quarterly estimate payments based on 25% tax rate; companies that received preferential tax rates are also required to use a 25% tax rate for their installment tax payments. The overpayment, however, will not be refunded and can only be used to offset future tax liabilities. Our effective tax rate differs from the statutory federal income tax rate, primarily as a result of the changes in valuation allowance, nondeductible permanent differences, credits, and state income taxes. A reconciliation of the federal statutory income tax to our effective income tax is as follows:
Schedule of effective tax rate |  |  |  |  |  |
|  | 2022 |  |  | 2021 |
Federal statutory rates |  | $ | (1,034,596 | ) |  | $ | (673,266 | )
State income taxes |  |  | (435,516 | ) |  |  | (283,413 | )
Foreign income taxes |  |  | (129,904 | ) |  |  | (857 | )
Permanent differences |  |  | (86 | ) |  |  | (3,439 | )
Valuation allowance against net deferred tax assets |  |  | 1,600,102 |  |  |  | 960,975 |
Effective rate |  | $ | – |  |  | $ | – |
The tax effect of temporary differences that give rise to a significant portion of the deferred tax assets and liabilities at December 31, 2022 and 2021 is presented below:
Schedule of deferred tax assets and liabilities |  |  |  |  |  |
|  | 2022 |  |  | 2021 |
Deferred income tax asset |  |  |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 5,261,884 |  |  | $ | 3,661,868 |
Interest |  |  | 43,786 |  |  |  | 43,700 |
Total deferred income tax asset |  |  | 5,305,670 |  |  |  | 3,705,568 |
Less: valuation allowance |  |  | (5,305,670 | ) |  |  | (3,705,568 | )
Total deferred income tax asset |  | $ | – |  |  | $ | – |
The Company recognizes valuation allowances to reduce deferred tax assets to the amount that is more likely than not to be realized. The Company’s net deferred income tax asset is not more likely than not to be realized due to the lack of sufficient sources of future taxable income and cumulative losses that have resulted over the years. During the year ended December 31, 2022 the valuation allowance increased by $1,600,102. As of December 31, 2022, we had cumulative net operating loss carryforwards for federal and state income tax purposes of $17,718,495, and available tax credit carryforwards of approximately $3,611,045 for federal income tax purposes, which can be carried forward to offset future taxable income. The federal net operating loss carryforwards consists of $12,268,804 of losses incurred prior to January 1, 2022 and which can be used to offset 100% of future taxable income and, $4,926,649 of losses incurred after January 1, 2022, which can be used to offset up to 80% of taxable income in subsequent years.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, 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, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 21 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 14 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 270 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI https://asc.fasb.org/topic&trid=2144680 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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